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: 43.8057461°N, -80.0040051°E · Requested elevation: 334 m. Model terrain: 370 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 6.8 79 21 11 4B N — — 1016 1187 Overcast 91% cloud 03:00 5.1 86 21 11 4B N 0.25 0 1020 997 Overcast 90% cloud 06:00 3.6 86 20 11 3B N 0.25 0 1022 783 Cloudy 59% cloud 09:00 2.5 82 17 9 3B N 0.05 0 1024 631 Overcast 89% cloud 12:00 2.3 74 16 9 3B N 0.08 0 1028 595 Overcast 96% cloud 15:00 4.7 54 13 7 3B NW 0.00 0 1030 735 Clear 8% cloud 18:00 7.8 47 10 6 2B NW 0.00 0 1029 1099 Clear 0% cloud 21:00 8 43 13 7 3B W 0 0 1029 1487 Clear 0% cloud Sunday, 18/10 00:00 4.9 67 15 8 3B W 0 0 1029 2083 Clear 4% cloud 03:00 4.4 74 18 10 3B SW 0 0 1030 2451 Clear 6% cloud 06:00 4.4 75 16 9 3B SW 0 0 1030 2723 Clear 2% cloud 09:00 4.6 85 16 8 3B W 0 0 1030 3048 Clear 7% cloud 12:00 4.6 90 15 8 3B SW 0 0 1031 3327 Clear 0% cloud 15:00 9.9 65 18 9 3B SW 0 0 1032 3520 Clear 0% cloud 18:00 13.9 51 20 11 4B SW 0 0 1030 3624 Clear 0% cloud 21:00 13.7 49 19 10 3B SW 0 0 1029 3688 Clear 2% cloud Monday, 19/10 00:00 9.7 66 20 11 4B SW 0 0 1030 3724 Clear 1% cloud 03:00 8.7 61 24 13 4B W 0 0 1030 3747 Clear 2% cloud 06:00 8.5 61 23 12 4B W 0 0 1029 3621 Clear 17% cloud 09:00 7.8 65 21 12 4B W 0 0 1030 3429 Clear 1% cloud 12:00 7.5 67 20 11 4B W 0 0 1030 3281 Clear 0% cloud 15:00 12.8 59 9 5 2B W 0 0 1031 3397 Clear 0% cloud 18:00 16.6 49 10 5 2B W 0 0 1029 3424 Clear 0% cloud 21:00 16.1 54 8 4 2B W 0 0 1028 3543 Clear 0% cloud Tuesday, 20/10 00:00 9.3 85 8 4 2B NW 0 0 1028 3626 Clear 0% cloud 03:00 6.9 91 7 4 2B NW 0 0 1029 3532 Clear 1% cloud 06:00 6.7 95 8 4 2B N 0 0 1029 3479 Cloudy 56% cloud 09:00 7.1 98 11 6 2B N 0 0 1029 3492 Overcast 96% cloud 12:00 7.1 98 10 5 2B N 0 0 1030 3449 Overcast 83% cloud 15:00 11.4 83 7 4 2B NE 0 0 1031 3403 Clear 13% cloud 18:00 15.1 64 9 5 2B E 0 0 1030 3423 Clear 7% cloud 21:00 14.5 66 7 4 2B E 0 0 1029 3485 Clear 6% cloud Wednesday, 21/10 00:00 8.9 86 2 1 1B SE 0 0 1030 3497 Clear 0% cloud 03:00 7.7 86 2 1 1B N 0 0 1030 3480 Clear 0% cloud 06:00 6.8 84 6 3 1B E 0 0 1029 3441 Clear 0% cloud 09:00 5.2 87 5 3 1B E 0 0 1029 3418 Clear 0% cloud 12:00 4.3 80 4 2 1B NE 0 0 1029 3432 Clear 0% cloud 15:00 11 72 8 5 2B E 0 0 1029 3426 Clear 3% cloud 18:00 13.9 61 8 4 2B SE 0 0 1027 3425 Partly cloudy 23% cloud 21:00 13.1 63 6 3 2B SE 0 0 1026 3430 Partly cloudy 25% cloud Thursday, 22/10 00:00 7.6 87 3 2 1B S 0 0 1026 3344 Clear 0% cloud 03:00 6 91 2 1 1B W 0 0 1025 3286 Clear 2% cloud 06:00 4.2 96 4 2 1B W 0 0 1024 3222 Clear 0% cloud 09:00 4.2 96 8 4 2B NW 0 0 1023 3166 Clear 5% cloud 12:00 5.4 91 10 5 2B NW 0 0 1024 3017 Clear 10% cloud 15:00 12.7 72 10 5 2B N 0 0 1024 2896 Partly cloudy 39% cloud 18:00 15 57 9 5 2B N 0 0 1023 2989 Partly cloudy 24% cloud 21:00 14.2 59 13 7 3B N 0 0 1023 2979 Partly cloudy 26% cloud Friday, 23/10 00:00 9.7 89 12 6 2B N 0 0 1024 2932 Clear 3% cloud 06:00 7.4 96 12 7 3B N 0 0 1027 3001 Partly cloudy 20% cloud 12:00 3.5 96 10 5 2B NE 0.00 0 1030 2973 Clear 0% cloud 18:00 10.3 61 10 5 2B E 0 0 1030 3337 Clear 6% cloud Saturday, 24/10 00:00 5.1 81 5 3 1B E 0 0 1030 3406 Overcast 97% cloud 06:00 3.2 78 9 5 2B E 0 0 1031 3384 Partly cloudy 22% cloud 12:00 2.7 90 5 2 1B NE 0 0 1032 3395 Cloudy 78% cloud 18:00 11.3 63 10 5 2B SE 0 0 1030 3464 Clear 13% cloud Sunday, 25/10 00:00 5.5 93 6 3 1B SE 0 0 1029 3680 Clear 0% cloud 06:00 4.5 93 3 2 1B S 0 0 1028 3776 Clear 2% cloud 12:00 1.9 98 6 3 2B W 0 0 1028 3815 Overcast 82% cloud 18:00 15.3 56 9 5 2B SW 0 0 1026 3785 Partly cloudy 46% cloud Monday, 26/10 00:00 9.7 86 7 4 2B SW 0 0 1025 3795 Overcast 94% cloud 06:00 9.1 93 12 6 2B W 0 0 1025 3405 Overcast 100% cloud 12:00 9.8 91 11 6 2B W 0 0 1025 3084 Cloudy 69% cloud 18:00 17.8 61 13 7 3B NW 0 0 1024 3094 Clear 12% cloud Tuesday, 27/10 00:00 10.5 90 12 6 2B NW 0 0 1026 3431 Clear 5% cloud |
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Caledon Ski Club is a downhill ski area in Ontario, Canada. Mapped terrain includes beginner, easy, intermediate, advanced, expert routes. Its mapped lift network extends from approximately 334 to 410 metres above sea level.
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: 43.8057461°N, -80.0040051°E · Requested elevation: 334 m. Model terrain: 370 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 6.8 79 21 11 4B N — — 1016 1187 Overcast 91% cloud 03:00 5.1 86 21 11 4B N 0.25 0 1020 997 Overcast 90% cloud 06:00 3.6 86 20 11 3B N 0.25 0 1022 783 Cloudy 59% cloud 09:00 2.5 82 17 9 3B N 0.05 0 1024 631 Overcast 89% cloud 12:00 2.3 74 16 9 3B N 0.08 0 1028 595 Overcast 96% cloud 15:00 4.7 54 13 7 3B NW 0.00 0 1030 735 Clear 8% cloud 18:00 7.8 47 10 6 2B NW 0.00 0 1029 1099 Clear 0% cloud 21:00 8 43 13 7 3B W 0 0 1029 1487 Clear 0% cloud Sunday, 18/10 00:00 4.9 67 15 8 3B W 0 0 1029 2083 Clear 4% cloud 03:00 4.4 74 18 10 3B SW 0 0 1030 2451 Clear 6% cloud 06:00 4.4 75 16 9 3B SW 0 0 1030 2723 Clear 2% cloud 09:00 4.6 85 16 8 3B W 0 0 1030 3048 Clear 7% cloud 12:00 4.6 90 15 8 3B SW 0 0 1031 3327 Clear 0% cloud 15:00 9.9 65 18 9 3B SW 0 0 1032 3520 Clear 0% cloud 18:00 13.9 51 20 11 4B SW 0 0 1030 3624 Clear 0% cloud 21:00 13.7 49 19 10 3B SW 0 0 1029 3688 Clear 2% cloud Monday, 19/10 00:00 9.7 66 20 11 4B SW 0 0 1030 3724 Clear 1% cloud 03:00 8.7 61 24 13 4B W 0 0 1030 3747 Clear 2% cloud 06:00 8.5 61 23 12 4B W 0 0 1029 3621 Clear 17% cloud 09:00 7.8 65 21 12 4B W 0 0 1030 3429 Clear 1% cloud 12:00 7.5 67 20 11 4B W 0 0 1030 3281 Clear 0% cloud 15:00 12.8 59 9 5 2B W 0 0 1031 3397 Clear 0% cloud 18:00 16.6 49 10 5 2B W 0 0 1029 3424 Clear 0% cloud 21:00 16.1 54 8 4 2B W 0 0 1028 3543 Clear 0% cloud Tuesday, 20/10 00:00 9.3 85 8 4 2B NW 0 0 1028 3626 Clear 0% cloud 03:00 6.9 91 7 4 2B NW 0 0 1029 3532 Clear 1% cloud 06:00 6.7 95 8 4 2B N 0 0 1029 3479 Cloudy 56% cloud 09:00 7.1 98 11 6 2B N 0 0 1029 3492 Overcast 96% cloud 12:00 7.1 98 10 5 2B N 0 0 1030 3449 Overcast 83% cloud 15:00 11.4 83 7 4 2B NE 0 0 1031 3403 Clear 13% cloud 18:00 15.1 64 9 5 2B E 0 0 1030 3423 Clear 7% cloud 21:00 14.5 66 7 4 2B E 0 0 1029 3485 Clear 6% cloud Wednesday, 21/10 00:00 8.9 86 2 1 1B SE 0 0 1030 3497 Clear 0% cloud 03:00 7.7 86 2 1 1B N 0 0 1030 3480 Clear 0% cloud 06:00 6.8 84 6 3 1B E 0 0 1029 3441 Clear 0% cloud 09:00 5.2 87 5 3 1B E 0 0 1029 3418 Clear 0% cloud 12:00 4.3 80 4 2 1B NE 0 0 1029 3432 Clear 0% cloud 15:00 11 72 8 5 2B E 0 0 1029 3426 Clear 3% cloud 18:00 13.9 61 8 4 2B SE 0 0 1027 3425 Partly cloudy 23% cloud 21:00 13.1 63 6 3 2B SE 0 0 1026 3430 Partly cloudy 25% cloud Thursday, 22/10 00:00 7.6 87 3 2 1B S 0 0 1026 3344 Clear 0% cloud 03:00 6 91 2 1 1B W 0 0 1025 3286 Clear 2% cloud 06:00 4.2 96 4 2 1B W 0 0 1024 3222 Clear 0% cloud 09:00 4.2 96 8 4 2B NW 0 0 1023 3166 Clear 5% cloud 12:00 5.4 91 10 5 2B NW 0 0 1024 3017 Clear 10% cloud 15:00 12.7 72 10 5 2B N 0 0 1024 2896 Partly cloudy 39% cloud 18:00 15 57 9 5 2B N 0 0 1023 2989 Partly cloudy 24% cloud 21:00 14.2 59 13 7 3B N 0 0 1023 2979 Partly cloudy 26% cloud Friday, 23/10 00:00 9.7 89 12 6 2B N 0 0 1024 2932 Clear 3% cloud 06:00 7.4 96 12 7 3B N 0 0 1027 3001 Partly cloudy 20% cloud 12:00 3.5 96 10 5 2B NE 0.00 0 1030 2973 Clear 0% cloud 18:00 10.3 61 10 5 2B E 0 0 1030 3337 Clear 6% cloud Saturday, 24/10 00:00 5.1 81 5 3 1B E 0 0 1030 3406 Overcast 97% cloud 06:00 3.2 78 9 5 2B E 0 0 1031 3384 Partly cloudy 22% cloud 12:00 2.7 90 5 2 1B NE 0 0 1032 3395 Cloudy 78% cloud 18:00 11.3 63 10 5 2B SE 0 0 1030 3464 Clear 13% cloud Sunday, 25/10 00:00 5.5 93 6 3 1B SE 0 0 1029 3680 Clear 0% cloud 06:00 4.5 93 3 2 1B S 0 0 1028 3776 Clear 2% cloud 12:00 1.9 98 6 3 2B W 0 0 1028 3815 Overcast 82% cloud 18:00 15.3 56 9 5 2B SW 0 0 1026 3785 Partly cloudy 46% cloud Monday, 26/10 00:00 9.7 86 7 4 2B SW 0 0 1025 3795 Overcast 94% cloud 06:00 9.1 93 12 6 2B W 0 0 1025 3405 Overcast 100% cloud 12:00 9.8 91 11 6 2B W 0 0 1025 3084 Cloudy 69% cloud 18:00 17.8 61 13 7 3B NW 0 0 1024 3094 Clear 12% cloud Tuesday, 27/10 00:00 10.5 90 12 6 2B NW 0 0 1026 3431 Clear 5% 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: 43.8028202°N, -80.0033792°E · Requested elevation: 410 m. Model terrain: 369 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 6.3 81 23 13 4B N — — 1016 1187 Overcast 91% cloud 03:00 4.5 87 23 13 4B N 0.24 0 1020 998 Overcast 90% cloud 06:00 3.1 87 23 12 4B N 0.24 0 1022 784 Cloudy 59% cloud 09:00 2 84 19 10 3B N 0.05 0 1024 631 Overcast 89% cloud 12:00 1.8 76 18 10 3B N 0.07 0 1028 595 Overcast 96% cloud 15:00 4 56 14 8 3B NW 0.00 0 1030 735 Clear 8% cloud 18:00 7.1 48 11 6 2B NW 0.00 0 1029 1100 Clear 0% cloud 21:00 7.4 44 14 7 3B W 0 0 1029 1488 Clear 0% cloud Sunday, 18/10 00:00 4.7 65 17 9 3B W 0 0 1029 2084 Clear 4% cloud 03:00 4.2 74 21 11 4B W 0 0 1030 2451 Clear 6% cloud 06:00 4.2 75 19 10 3B W 0 0 1030 2723 Clear 2% cloud 09:00 4.5 82 19 10 3B W 0 0 1030 3047 Clear 7% cloud 12:00 4.6 86 18 10 3B W 0 0 1031 3326 Clear 0% cloud 15:00 9.7 62 20 11 4B SW 0 0 1032 3520 Clear 0% cloud 18:00 13.2 52 22 12 4B SW 0 0 1030 3624 Clear 0% cloud 21:00 13.1 50 22 12 4B SW 0 0 1029 3688 Clear 2% cloud Monday, 19/10 00:00 9.6 63 23 12 4B SW 0 0 1030 3724 Clear 0% cloud 03:00 8.8 57 28 15 4B W 0 0 1030 3747 Clear 1% cloud 06:00 8.7 56 26 14 4B W 0 0 1029 3621 Clear 16% cloud 09:00 8 61 25 13 4B W 0 0 1030 3430 Clear 1% cloud 12:00 7.8 62 22 12 4B W 0 0 1030 3280 Clear 0% cloud 15:00 12.5 57 11 6 2B W 0 0 1031 3398 Clear 0% cloud 18:00 15.9 50 11 6 2B W 0 0 1029 3424 Clear 0% cloud 21:00 15.5 55 9 5 2B W 0 0 1028 3543 Clear 0% cloud Tuesday, 20/10 00:00 9.2 82 8 4 2B NW 0 0 1028 3626 Clear 0% cloud 03:00 6.9 88 8 4 2B NW 0 0 1029 3532 Clear 0% cloud 06:00 6.7 92 9 5 2B N 0 0 1029 3480 Cloudy 56% cloud 09:00 7 95 10 6 2B N 0 0 1029 3493 Overcast 96% cloud 12:00 7.1 97 9 5 2B N 0 0 1030 3449 Overcast 83% cloud 15:00 11 84 8 4 2B NE 0 0 1031 3403 Clear 12% cloud 18:00 14.4 66 9 5 2B E 0 0 1030 3423 Clear 7% cloud 21:00 13.9 68 7 4 2B E 0 0 1029 3485 Clear 6% cloud Wednesday, 21/10 00:00 8.8 86 3 2 1B E 0 0 1030 3498 Clear 0% cloud 03:00 7.7 82 3 1 1B E 0 0 1030 3481 Clear 0% cloud 06:00 6.8 82 7 4 2B E 0 0 1029 3441 Clear 0% cloud 09:00 5.2 83 6 3 2B E 0 0 1029 3418 Clear 0% cloud 12:00 4.5 74 5 3 1B E 0 0 1029 3432 Clear 0% cloud 15:00 10.7 69 9 5 2B E 0 0 1029 3426 Clear 3% cloud 18:00 13.3 61 8 4 2B SE 0 0 1027 3425 Partly cloudy 22% cloud 21:00 12.6 62 6 3 2B SE 0 0 1026 3430 Partly cloudy 25% cloud Thursday, 22/10 00:00 7.7 81 3 1 1B S 0 0 1026 3344 Clear 0% cloud 03:00 6.3 84 2 1 1B W 0 0 1025 3286 Clear 2% cloud 06:00 4.4 93 4 2 1B NW 0 0 1024 3222 Clear 0% cloud 09:00 4.5 93 8 4 2B NW 0 0 1023 3166 Clear 5% cloud 12:00 5.5 88 10 6 2B NW 0 0 1024 3018 Clear 9% cloud 15:00 12.1 71 10 6 2B N 0 0 1024 2897 Partly cloudy 39% cloud 18:00 14.3 58 10 5 2B N 0 0 1023 2990 Partly cloudy 24% cloud 21:00 13.6 61 13 7 3B N 0 0 1023 2979 Partly cloudy 26% cloud Friday, 23/10 00:00 9.5 88 13 7 3B N 0 0 1024 2932 Clear 2% cloud 06:00 7.2 96 14 7 3B NE 0 0 1027 3001 Clear 19% cloud 12:00 3.4 95 10 6 2B NE 0.00 0 1030 2972 Clear 0% cloud 18:00 9.6 63 10 5 2B E 0 0 1030 3337 Clear 6% cloud Saturday, 24/10 00:00 4.8 80 7 4 2B E 0 0 1030 3406 Overcast 97% cloud 06:00 3.1 79 10 6 2B E 0 0 1031 3384 Partly cloudy 23% cloud 12:00 2.6 90 5 3 1B E 0 0 1032 3395 Cloudy 79% cloud 18:00 10.7 65 10 6 2B SE 0 0 1030 3464 Clear 12% cloud Sunday, 25/10 00:00 5.4 90 6 3 2B SE 0 0 1029 3680 Clear 0% cloud 06:00 4.6 91 5 3 1B S 0 0 1028 3776 Clear 2% cloud 12:00 2.2 96 7 4 2B W 0 0 1028 3815 Overcast 83% cloud 18:00 14.6 57 10 5 2B SW 0 0 1026 3786 Partly cloudy 46% cloud Monday, 26/10 00:00 9.6 86 8 4 2B SW 0 0 1025 3795 Overcast 94% cloud 06:00 9.2 90 13 7 3B W 0 0 1025 3407 Overcast 100% cloud 12:00 9.9 88 12 7 2B W 0 0 1025 3084 Cloudy 69% cloud 18:00 17.1 63 14 8 3B NW 0 0 1024 3094 Clear 12% cloud Tuesday, 27/10 00:00 10.2 90 13 7 3B NW 0 0 1026 3431 Clear 5% cloud |
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