Each colour starts at the value shown. Wind colours match across all three units. Dry cells stay neutral. Colours describe the displayed values, not official weather warnings.
Preparing forecast graphs…
Times and values match the detailed forecast. Tap or point at a value for details. Scroll each chart sideways for later days. Rain / precipitation is the total water equivalent per forecast interval, including snow; snowfall is fresh snow per interval, not snow depth.
GFS and ECMWF model comparison. Each model retains its own forecast times and horizon. Precipitation and snowfall amounts cover their own forecast intervals; these can differ between models.
ECMWF IFS · Run 2026-10-17 00:00:00 UTC · 10 days · Times: UTC.
Coordinates: 41.4254849°N, -90.7497692°E · Requested elevation: 182 m. Model terrain: 217 m. Terrain and 1000/925/850/700 hPa profiles are used for height estimates.
Outside the available profile, temperature uses an estimated 5.5°C/km height correction; wind retains the nearest available model-level value. Humidity is estimated with adjusted pressure and temperature.
These are altitude estimates, not a simulation of local mountain terrain. Precipitation, cloud and sea-level pressure use horizontal interpolation only.
Precipitation includes rain and snow water equivalent: preceding 3 hours through day 6, then 6 hours (see cell tooltip). Snow (cm) estimates fresh snowfall from precipitation and temperature using the GFS conversion; it is not snow depth on the ground. Freezing (m) uses additional 600/500 hPa temperatures when available and estimates the lowest resolved 0°C crossing above sea level. When all sampled levels are warm, the upper profile limit is shown (see tooltip). < marks an entirely cold sampled profile and its lower height limit. No extrapolation is used.
Day Time (UTC) Temp. (°C) Humidity (%) Wind (km/h) Wind (knots) Wind (Bft) Direction Precip. (mm) Snow (cm) Pressure (hPa) Freezing (m) Conditions | Saturday, 17/10 00:00 9.7 62 19 10 3B N — — 1030 1394 Clear 8% cloud 03:00 8.2 66 15 8 3B N 0 0 1032 1325 Clear 4% cloud 06:00 6.1 74 10 5 2B N 0 0 1034 1477 Clear 0% cloud 09:00 4.1 85 6 3 2B N 0 0 1034 2561 Clear 0% cloud 12:00 3.3 89 1 0 0B NW 0 0 1035 2929 Clear 0% cloud 15:00 8.2 56 5 3 1B S 0 0 1035 3182 Clear 0% cloud 18:00 12.2 40 9 5 2B SW 0 0 1034 3273 Clear 0% cloud 21:00 13.4 38 13 7 3B SW 0 0 1031 3502 Clear 0% cloud Sunday, 18/10 00:00 9.5 56 11 6 2B S 0 0 1030 3721 Clear 0% cloud 03:00 8.2 61 13 7 3B S 0 0 1031 3970 Clear 0% cloud 06:00 7.3 65 14 7 3B S 0 0 1030 4089 Clear 0% cloud 09:00 6.7 70 14 8 3B S 0 0 1030 4206 Clear 0% cloud 12:00 6.3 76 15 8 3B S 0 0 1030 4232 Clear 0% cloud 15:00 10.9 62 17 9 3B S 0 0 1030 4383 Clear 0% cloud 18:00 16 50 21 11 4B S 0 0 1028 4441 Clear 0% cloud 21:00 17.1 49 19 10 3B S 0 0 1026 4445 Clear 0% cloud Monday, 19/10 00:00 12.7 65 12 6 2B S 0 0 1027 4486 Clear 0% cloud 03:00 10.6 68 14 7 3B S 0 0 1028 4390 Clear 0% cloud 06:00 9.1 71 12 6 2B S 0 0 1028 4146 Clear 0% cloud 09:00 7.6 80 10 5 2B S 0 0 1028 3879 Clear 0% cloud 12:00 6.1 88 6 3 2B S 0 0 1029 3812 Clear 1% cloud 15:00 11.9 70 8 4 2B S 0 0 1029 3797 Overcast 95% cloud 18:00 17 51 9 5 2B S 0 0 1028 3770 Cloudy 52% cloud 21:00 18.1 46 9 5 2B S 0 0 1026 3769 Overcast 99% cloud Tuesday, 20/10 00:00 13.8 67 7 4 2B SE 0 0 1026 3847 Overcast 99% cloud 03:00 10.9 77 8 4 2B SE 0 0 1027 3925 Cloudy 57% cloud 06:00 8.8 84 7 4 2B SE 0 0 1027 3895 Clear 14% cloud 09:00 8 85 6 3 2B SE 0 0 1027 3802 Partly cloudy 31% cloud 12:00 7.4 88 6 3 1B SE 0 0 1028 3792 Cloudy 66% cloud 15:00 13.6 70 5 3 1B SE 0 0 1029 3747 Cloudy 57% cloud 18:00 19.2 50 8 4 2B SE 0 0 1027 3748 Partly cloudy 26% cloud 21:00 19.8 49 10 5 2B SE 0 0 1026 3719 Partly cloudy 21% cloud Wednesday, 21/10 00:00 14.8 73 9 5 2B SE 0.21 0 1026 3711 Cloudy 66% cloud 03:00 12.5 82 9 5 2B SE 0.63 0 1026 3712 Cloudy 70% cloud 06:00 10.9 82 8 4 2B S 0 0 1025 3726 Cloudy 56% cloud 09:00 9.9 85 6 3 2B S 0 0 1025 3693 Partly cloudy 23% cloud 12:00 8.9 89 7 4 2B S 0 0 1025 3708 Partly cloudy 29% cloud 15:00 14.2 74 7 4 2B S 0 0 1026 3734 Partly cloudy 37% cloud 18:00 20.1 49 8 5 2B S 0 0 1024 3761 Clear 0% cloud 21:00 20.9 42 10 5 2B S 0 0 1022 3766 Clear 5% cloud Thursday, 22/10 00:00 16 64 4 2 1B S 0 0 1023 3728 Clear 17% cloud 03:00 12.7 77 6 4 2B S 0.00 0 1023 3676 Clear 1% cloud 06:00 11.2 82 5 3 1B S 0 0 1023 3649 Clear 8% cloud 09:00 10.6 85 4 2 1B S 0 0 1023 3634 Clear 1% cloud 12:00 9.8 88 3 1 1B S 0 0 1023 3621 Clear 1% cloud 15:00 15.9 71 3 2 1B E 0 0 1024 3652 Clear 0% cloud 18:00 21.1 50 7 4 2B SE 0 0 1023 3702 Clear 0% cloud 21:00 21.7 47 5 2 1B SE 0 0 1022 3734 Clear 0% cloud Friday, 23/10 00:00 16.4 72 6 3 2B E 0 0 1023 3799 Clear 1% cloud 06:00 12.4 84 8 4 2B SE 0 0 1024 3929 Clear 0% cloud 12:00 10.8 89 11 6 2B SE 0.01 0 1025 3974 Clear 1% cloud 18:00 20.9 48 14 8 3B SE 0 0 1024 4022 Partly cloudy 45% cloud Saturday, 24/10 00:00 16.4 66 12 7 2B SE 0 0 1022 3972 Clear 3% cloud 06:00 14 74 14 8 3B SE 0 0 1023 4053 Cloudy 68% cloud 12:00 11.7 86 13 7 3B SE 0 0 1023 4061 Overcast 82% cloud 18:00 20.2 51 17 9 3B SE 0 0 1022 4161 Cloudy 52% cloud Sunday, 25/10 00:00 16.9 60 14 7 3B SE 0 0 1021 4195 Overcast 100% cloud 06:00 15.1 64 14 7 3B S 0 0 1021 3160 Overcast 99% cloud 12:00 13.7 74 11 6 2B S 0 0 1021 3156 Overcast 97% cloud 18:00 21.4 52 8 4 2B S 0.02 0 1021 3159 Overcast 99% cloud Monday, 26/10 00:00 16.1 90 3 2 1B W 1.0 0 1023 3157 Overcast 100% cloud 06:00 15.1 93 5 3 1B NW 0.00 0 1024 3168 Overcast 98% cloud 12:00 13.6 96 13 7 3B N 0 0 1027 3188 Cloudy 74% cloud 18:00 18.7 71 11 6 2B NE 0.01 0 1029 3204 Overcast 83% cloud Tuesday, 27/10 00:00 17 77 11 6 2B N 0 0 1027 3199 Partly cloudy 27% cloud |
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Ski Snowstar is a downhill ski area in Illinois, United States. Its mapped lift network extends from approximately 182 to 240 metres above sea level. Cross-country skiing is also mapped within the area.
Data: OpenSkiData / OpenSkiMap, OpenStreetMap contributors (ODbL), Skimap.org, Who's On First, Mapterhorn.
Preparing forecast graphs…
Times and values match the detailed forecast. Tap or point at a value for details. Scroll each chart sideways for later days. Rain / precipitation is the total water equivalent per forecast interval, including snow; snowfall is fresh snow per interval, not snow depth.
GFS and ECMWF model comparison. Each model retains its own forecast times and horizon. Precipitation and snowfall amounts cover their own forecast intervals; these can differ between models.
ECMWF IFS · Run 2026-10-17 00:00:00 UTC · 10 days · Times: UTC.
Coordinates: 41.4254849°N, -90.7497692°E · Requested elevation: 182 m. Model terrain: 217 m. Terrain and 1000/925/850/700 hPa profiles are used for height estimates.
Outside the available profile, temperature uses an estimated 5.5°C/km height correction; wind retains the nearest available model-level value. Humidity is estimated with adjusted pressure and temperature.
These are altitude estimates, not a simulation of local mountain terrain. Precipitation, cloud and sea-level pressure use horizontal interpolation only.
Precipitation includes rain and snow water equivalent: preceding 3 hours through day 6, then 6 hours (see cell tooltip). Snow (cm) estimates fresh snowfall from precipitation and temperature using the GFS conversion; it is not snow depth on the ground. Freezing (m) uses additional 600/500 hPa temperatures when available and estimates the lowest resolved 0°C crossing above sea level. When all sampled levels are warm, the upper profile limit is shown (see tooltip). < marks an entirely cold sampled profile and its lower height limit. No extrapolation is used.
Day Time (UTC) Temp. (°C) Humidity (%) Wind (km/h) Wind (knots) Wind (Bft) Direction Precip. (mm) Snow (cm) Pressure (hPa) Freezing (m) Conditions | Saturday, 17/10 00:00 9.7 62 19 10 3B N — — 1030 1394 Clear 8% cloud 03:00 8.2 66 15 8 3B N 0 0 1032 1325 Clear 4% cloud 06:00 6.1 74 10 5 2B N 0 0 1034 1477 Clear 0% cloud 09:00 4.1 85 6 3 2B N 0 0 1034 2561 Clear 0% cloud 12:00 3.3 89 1 0 0B NW 0 0 1035 2929 Clear 0% cloud 15:00 8.2 56 5 3 1B S 0 0 1035 3182 Clear 0% cloud 18:00 12.2 40 9 5 2B SW 0 0 1034 3273 Clear 0% cloud 21:00 13.4 38 13 7 3B SW 0 0 1031 3502 Clear 0% cloud Sunday, 18/10 00:00 9.5 56 11 6 2B S 0 0 1030 3721 Clear 0% cloud 03:00 8.2 61 13 7 3B S 0 0 1031 3970 Clear 0% cloud 06:00 7.3 65 14 7 3B S 0 0 1030 4089 Clear 0% cloud 09:00 6.7 70 14 8 3B S 0 0 1030 4206 Clear 0% cloud 12:00 6.3 76 15 8 3B S 0 0 1030 4232 Clear 0% cloud 15:00 10.9 62 17 9 3B S 0 0 1030 4383 Clear 0% cloud 18:00 16 50 21 11 4B S 0 0 1028 4441 Clear 0% cloud 21:00 17.1 49 19 10 3B S 0 0 1026 4445 Clear 0% cloud Monday, 19/10 00:00 12.7 65 12 6 2B S 0 0 1027 4486 Clear 0% cloud 03:00 10.6 68 14 7 3B S 0 0 1028 4390 Clear 0% cloud 06:00 9.1 71 12 6 2B S 0 0 1028 4146 Clear 0% cloud 09:00 7.6 80 10 5 2B S 0 0 1028 3879 Clear 0% cloud 12:00 6.1 88 6 3 2B S 0 0 1029 3812 Clear 1% cloud 15:00 11.9 70 8 4 2B S 0 0 1029 3797 Overcast 95% cloud 18:00 17 51 9 5 2B S 0 0 1028 3770 Cloudy 52% cloud 21:00 18.1 46 9 5 2B S 0 0 1026 3769 Overcast 99% cloud Tuesday, 20/10 00:00 13.8 67 7 4 2B SE 0 0 1026 3847 Overcast 99% cloud 03:00 10.9 77 8 4 2B SE 0 0 1027 3925 Cloudy 57% cloud 06:00 8.8 84 7 4 2B SE 0 0 1027 3895 Clear 14% cloud 09:00 8 85 6 3 2B SE 0 0 1027 3802 Partly cloudy 31% cloud 12:00 7.4 88 6 3 1B SE 0 0 1028 3792 Cloudy 66% cloud 15:00 13.6 70 5 3 1B SE 0 0 1029 3747 Cloudy 57% cloud 18:00 19.2 50 8 4 2B SE 0 0 1027 3748 Partly cloudy 26% cloud 21:00 19.8 49 10 5 2B SE 0 0 1026 3719 Partly cloudy 21% cloud Wednesday, 21/10 00:00 14.8 73 9 5 2B SE 0.21 0 1026 3711 Cloudy 66% cloud 03:00 12.5 82 9 5 2B SE 0.63 0 1026 3712 Cloudy 70% cloud 06:00 10.9 82 8 4 2B S 0 0 1025 3726 Cloudy 56% cloud 09:00 9.9 85 6 3 2B S 0 0 1025 3693 Partly cloudy 23% cloud 12:00 8.9 89 7 4 2B S 0 0 1025 3708 Partly cloudy 29% cloud 15:00 14.2 74 7 4 2B S 0 0 1026 3734 Partly cloudy 37% cloud 18:00 20.1 49 8 5 2B S 0 0 1024 3761 Clear 0% cloud 21:00 20.9 42 10 5 2B S 0 0 1022 3766 Clear 5% cloud Thursday, 22/10 00:00 16 64 4 2 1B S 0 0 1023 3728 Clear 17% cloud 03:00 12.7 77 6 4 2B S 0.00 0 1023 3676 Clear 1% cloud 06:00 11.2 82 5 3 1B S 0 0 1023 3649 Clear 8% cloud 09:00 10.6 85 4 2 1B S 0 0 1023 3634 Clear 1% cloud 12:00 9.8 88 3 1 1B S 0 0 1023 3621 Clear 1% cloud 15:00 15.9 71 3 2 1B E 0 0 1024 3652 Clear 0% cloud 18:00 21.1 50 7 4 2B SE 0 0 1023 3702 Clear 0% cloud 21:00 21.7 47 5 2 1B SE 0 0 1022 3734 Clear 0% cloud Friday, 23/10 00:00 16.4 72 6 3 2B E 0 0 1023 3799 Clear 1% cloud 06:00 12.4 84 8 4 2B SE 0 0 1024 3929 Clear 0% cloud 12:00 10.8 89 11 6 2B SE 0.01 0 1025 3974 Clear 1% cloud 18:00 20.9 48 14 8 3B SE 0 0 1024 4022 Partly cloudy 45% cloud Saturday, 24/10 00:00 16.4 66 12 7 2B SE 0 0 1022 3972 Clear 3% cloud 06:00 14 74 14 8 3B SE 0 0 1023 4053 Cloudy 68% cloud 12:00 11.7 86 13 7 3B SE 0 0 1023 4061 Overcast 82% cloud 18:00 20.2 51 17 9 3B SE 0 0 1022 4161 Cloudy 52% cloud Sunday, 25/10 00:00 16.9 60 14 7 3B SE 0 0 1021 4195 Overcast 100% cloud 06:00 15.1 64 14 7 3B S 0 0 1021 3160 Overcast 99% cloud 12:00 13.7 74 11 6 2B S 0 0 1021 3156 Overcast 97% cloud 18:00 21.4 52 8 4 2B S 0.02 0 1021 3159 Overcast 99% cloud Monday, 26/10 00:00 16.1 90 3 2 1B W 1.0 0 1023 3157 Overcast 100% cloud 06:00 15.1 93 5 3 1B NW 0.00 0 1024 3168 Overcast 98% cloud 12:00 13.6 96 13 7 3B N 0 0 1027 3188 Cloudy 74% cloud 18:00 18.7 71 11 6 2B NE 0.01 0 1029 3204 Overcast 83% cloud Tuesday, 27/10 00:00 17 77 11 6 2B N 0 0 1027 3199 Partly cloudy 27% cloud |
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Preparing forecast graphs…
Times and values match the detailed forecast. Tap or point at a value for details. Scroll each chart sideways for later days. Rain / precipitation is the total water equivalent per forecast interval, including snow; snowfall is fresh snow per interval, not snow depth.
GFS and ECMWF model comparison. Each model retains its own forecast times and horizon. Precipitation and snowfall amounts cover their own forecast intervals; these can differ between models.
ECMWF IFS · Run 2026-10-17 00:00:00 UTC · 10 days · Times: UTC.
Coordinates: 41.4238258°N, -90.7459343°E · Requested elevation: 240 m. Model terrain: 217 m. Terrain and 1000/925/850/700 hPa profiles are used for height estimates.
These are altitude estimates, not a simulation of local mountain terrain. Precipitation, cloud and sea-level pressure use horizontal interpolation only.
Precipitation includes rain and snow water equivalent: preceding 3 hours through day 6, then 6 hours (see cell tooltip). Snow (cm) estimates fresh snowfall from precipitation and temperature using the GFS conversion; it is not snow depth on the ground. Freezing (m) uses additional 600/500 hPa temperatures when available and estimates the lowest resolved 0°C crossing above sea level. When all sampled levels are warm, the upper profile limit is shown (see tooltip). < marks an entirely cold sampled profile and its lower height limit. No extrapolation is used.
Day Time (UTC) Temp. (°C) Humidity (%) Wind (km/h) Wind (knots) Wind (Bft) Direction Precip. (mm) Snow (cm) Pressure (hPa) Freezing (m) Conditions | Saturday, 17/10 00:00 9.3 63 20 11 4B N — — 1030 1394 Clear 8% cloud 03:00 8.3 64 19 10 3B N 0 0 1032 1325 Clear 5% cloud 06:00 6.2 72 14 7 3B N 0 0 1034 1476 Clear 0% cloud 09:00 4.5 79 9 5 2B N 0 0 1034 2559 Clear 0% cloud 12:00 3.7 82 1 1 1B N 0 0 1035 2929 Clear 0% cloud 15:00 7.5 57 6 3 2B S 0 0 1035 3182 Clear 0% cloud 18:00 11.3 40 10 5 2B SW 0 0 1034 3273 Clear 0% cloud 21:00 12.7 37 14 8 3B SW 0 0 1031 3501 Clear 0% cloud Sunday, 18/10 00:00 10.2 51 16 8 3B S 0 0 1030 3720 Clear 0% cloud 03:00 8.6 57 18 10 3B S 0 0 1031 3970 Clear 0% cloud 06:00 7.6 62 18 10 3B S 0 0 1030 4088 Clear 0% cloud 09:00 7 67 18 10 3B S 0 0 1030 4205 Clear 0% cloud 12:00 6.4 73 19 10 3B S 0 0 1030 4232 Clear 0% cloud 15:00 9.9 63 19 10 3B S 0 0 1030 4383 Clear 0% cloud 18:00 15.6 51 22 12 4B S 0 0 1028 4441 Clear 0% cloud 21:00 16.7 49 20 11 3B S 0 0 1026 4445 Clear 0% cloud Monday, 19/10 00:00 12.4 65 13 7 3B S 0 0 1027 4486 Clear 0% cloud 03:00 10.5 68 14 8 3B S 0 0 1028 4391 Clear 0% cloud 06:00 9 71 13 7 3B S 0 0 1028 4147 Clear 0% cloud 09:00 7.5 79 10 5 2B S 0 0 1028 3879 Clear 0% cloud 12:00 6.1 87 6 3 2B S 0 0 1029 3812 Clear 1% cloud 15:00 10.9 72 8 4 2B S 0 0 1029 3797 Overcast 95% cloud 18:00 16.6 51 9 5 2B S 0 0 1028 3770 Cloudy 53% cloud 21:00 17.7 47 9 5 2B S 0 0 1026 3769 Overcast 99% cloud Tuesday, 20/10 00:00 13.5 68 8 4 2B SE 0 0 1026 3847 Overcast 99% cloud 03:00 10.7 77 8 4 2B SE 0 0 1027 3925 Cloudy 56% cloud 06:00 8.7 83 7 4 2B SE 0 0 1027 3895 Clear 14% cloud 09:00 7.9 84 6 3 2B SE 0 0 1027 3802 Partly cloudy 32% cloud 12:00 7.3 87 5 3 1B SE 0 0 1028 3792 Cloudy 66% cloud 15:00 13.4 70 5 3 1B SE 0 0 1029 3747 Cloudy 56% cloud 18:00 18.7 51 8 4 2B SE 0 0 1027 3748 Partly cloudy 26% cloud 21:00 19.3 50 10 5 2B SE 0 0 1026 3719 Partly cloudy 21% cloud Wednesday, 21/10 00:00 14.5 73 10 5 2B SE 0.21 0 1026 3711 Cloudy 66% cloud 03:00 12.3 82 10 5 2B SE 0.63 0 1026 3712 Cloudy 69% cloud 06:00 10.8 82 9 5 2B S 0 0 1025 3726 Cloudy 56% cloud 09:00 9.8 85 7 4 2B S 0 0 1025 3693 Partly cloudy 23% cloud 12:00 8.9 88 7 4 2B S 0 0 1025 3707 Partly cloudy 30% cloud 15:00 14 73 7 4 2B S 0 0 1026 3733 Partly cloudy 38% cloud 18:00 19.7 49 9 5 2B S 0 0 1024 3761 Clear 0% cloud 21:00 20.5 43 10 5 2B S 0 0 1022 3766 Clear 5% cloud Thursday, 22/10 00:00 15.8 64 5 3 1B S 0 0 1023 3728 Clear 17% cloud 03:00 12.6 76 7 4 2B S 0.00 0 1023 3676 Clear 1% cloud 06:00 11.1 82 5 3 1B S 0 0 1023 3650 Clear 8% cloud 09:00 10.6 84 4 2 1B S 0 0 1023 3634 Clear 2% cloud 12:00 9.7 88 2 1 1B S 0 0 1023 3621 Clear 1% cloud 15:00 15.6 71 3 2 1B E 0 0 1024 3652 Clear 0% cloud 18:00 20.7 51 7 4 2B SE 0 0 1023 3701 Clear 0% cloud 21:00 21.3 48 5 2 1B SE 0 0 1022 3734 Clear 0% cloud Friday, 23/10 00:00 16.1 72 6 3 2B E 0 0 1023 3799 Clear 1% cloud 06:00 12.2 84 8 4 2B SE 0 0 1024 3928 Clear 0% cloud 12:00 10.8 89 11 6 2B SE 0.01 0 1025 3974 Clear 1% cloud 18:00 20.4 49 15 8 3B SE 0 0 1024 4022 Partly cloudy 45% cloud Saturday, 24/10 00:00 16.1 67 13 7 3B SE 0 0 1022 3972 Clear 3% cloud 06:00 13.8 74 15 8 3B SE 0 0 1023 4052 Cloudy 68% cloud 12:00 11.6 86 14 8 3B SE 0 0 1023 4061 Overcast 81% cloud 18:00 19.7 51 18 10 3B S 0 0 1022 4161 Cloudy 52% cloud Sunday, 25/10 00:00 16.7 60 15 8 3B SE 0 0 1021 4196 Overcast 100% cloud 06:00 14.9 64 15 8 3B S 0 0 1021 3160 Overcast 99% cloud 12:00 13.6 73 12 6 2B S 0 0 1021 3156 Overcast 97% cloud 18:00 21.1 52 8 4 2B SW 0.02 0 1021 3159 Overcast 99% cloud Monday, 26/10 00:00 15.9 90 3 2 1B SW 1.0 0 1023 3157 Overcast 100% cloud 06:00 14.9 93 5 3 1B NW 0.00 0 1024 3168 Overcast 97% cloud 12:00 13.5 96 14 7 3B N 0 0 1027 3188 Cloudy 74% cloud 18:00 18.3 72 11 6 2B NE 0.01 0 1028 3204 Overcast 82% cloud Tuesday, 27/10 00:00 16.7 78 11 6 2B N 0 0 1027 3199 Partly cloudy 28% cloud |
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