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 · Model run: Next update expected:
Day Time (UTC) Temp. (°C) Humidity (%) Wind (km/h) Wind (knots) Wind (Bft) Direction Precip. (mm) Snow (cm) Pressure (hPa) Freezing (m) Conditions | Wednesday, 04/11 06:00 10 89 3 2 1B SW — — 1021 3133 Overcast 81% cloud 09:00 9.9 89 4 2 1B W 0.03 0 1019 3127 Cloudy 77% cloud 12:00 11.1 86 5 3 1B W 0.01 0 1018 3132 Cloudy 60% cloud 15:00 19 63 6 3 1B SW 0 0 1017 3132 Overcast 89% cloud 18:00 22.7 46 8 4 2B SW 0.01 0 1015 3124 Partly cloudy 29% cloud 21:00 18.5 62 4 2 1B SW 0 0 1015 3122 Partly cloudy 27% cloud Thursday, 05/11 00:00 13.7 76 5 3 1B W 0 0 1015 3122 Clear 13% cloud 03:00 12.9 74 4 2 1B W 0 0 1014 3115 Partly cloudy 32% cloud 06:00 12.7 72 4 2 1B W 0 0 1013 3107 Clear 2% cloud 09:00 12.4 72 4 2 1B SW 0 0 1013 3097 Clear 14% cloud 12:00 11.9 70 5 3 1B SW 0 0 1012 3089 Cloudy 61% cloud 15:00 17.6 61 9 5 2B SW 0 0 1011 3080 Overcast 92% cloud 18:00 16.1 87 12 6 2B S 0.75 0 1010 3061 Overcast 100% cloud 21:00 15.2 95 9 5 2B SW 4.5 0 1009 3053 Overcast 100% cloud Friday, 06/11 00:00 15 94 7 4 2B SW 0.32 0 1010 3057 Overcast 98% cloud 03:00 14.9 94 8 4 2B SW 0.16 0 1010 3056 Overcast 97% cloud 06:00 14.4 95 6 3 2B SW 0.91 0 1010 3050 Overcast 81% cloud 09:00 13.3 94 4 2 1B NW 0.28 0 1010 3047 Overcast 95% cloud 12:00 12.3 94 4 2 1B W 0.03 0 1012 3049 Overcast 93% cloud 15:00 16 67 3 2 1B W 0.03 0 1013 3051 Overcast 100% cloud 18:00 18.3 48 5 2 1B SW 0 0 1011 3044 Overcast 96% cloud 21:00 15 64 1 1 1B W 0 0 1012 3046 Overcast 92% cloud Saturday, 07/11 00:00 10.9 80 5 3 1B N 0 0 1013 3048 Overcast 98% cloud 03:00 10.2 84 5 3 1B N 0 0 1013 3043 Overcast 100% cloud 06:00 9.9 83 5 2 1B N 0 0 1013 2980 Overcast 100% cloud 09:00 9.6 83 5 3 1B NE 0 0 1013 2845 Overcast 100% cloud 12:00 8.2 89 8 4 2B NE 0.08 0 1014 2696 Overcast 89% cloud 15:00 11.1 72 11 6 2B NE 0.08 0 1012 2755 Overcast 88% cloud 18:00 11.3 70 11 6 2B NE 0.23 0 1010 2730 Overcast 87% cloud 21:00 9.6 73 10 5 2B NE 0 0 1010 2681 Overcast 100% cloud Sunday, 08/11 00:00 8.1 78 10 5 2B NE 0.16 0 1009 2678 Overcast 100% cloud 03:00 6.6 91 8 4 2B NE 1.0 0 1008 2648 Overcast 100% cloud 06:00 5.9 93 4 2 1B N 6.3 0 1006 2194 Overcast 99% cloud 09:00 5 94 6 3 2B NW 3.6 0 1005 1833 Overcast 100% cloud 12:00 5 92 9 5 2B NW 0.51 0 1004 1479 Overcast 100% cloud 15:00 4.1 82 12 7 3B NW 0.31 0 1004 1540 Overcast 100% cloud 18:00 4.3 76 13 7 3B NW 0.92 0 1003 1584 Overcast 98% cloud 21:00 4.5 76 13 7 3B NW 0.11 0 1004 1207 Overcast 90% cloud Monday, 09/11 00:00 3.7 79 9 5 2B W 0 0 1003 1222 Overcast 88% cloud 03:00 2.8 83 7 4 2B W 0 0 1003 1028 Partly cloudy 37% cloud 06:00 1.7 86 6 3 2B W 0 0 1002 750 Partly cloudy 42% cloud 09:00 1 90 6 3 2B W 0 0 1001 < 577 Cloudy 65% cloud 12:00 2.3 88 7 4 2B W 0.05 0 1002 902 Overcast 86% cloud 15:00 6 60 17 9 3B NW 0 0 1003 1107 Cloudy 57% cloud 18:00 6.5 48 20 11 4B NW 0 0 1003 1083 Overcast 88% cloud 21:00 3.2 62 19 10 3B NW 0 0 1006 805 Overcast 95% cloud Tuesday, 10/11 00:00 2.4 62 22 12 4B NW 0 0 1008 750 Cloudy 79% cloud 03:00 1.3 65 19 10 3B NW 0 0 1009 601 Partly cloudy 21% cloud 06:00 0.4 71 14 7 3B NW 0 0 1010 < 577 Overcast 81% cloud |
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Forecast table times: UTC.
Coordinates: 44.1658238°N, -71.1665666°E · Requested elevation: 375 m. Model terrain: 575 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.

Black Mountain is a downhill ski area in New Hampshire, United States. Mapped terrain includes easy, intermediate, advanced routes. Its mapped lift network extends from approximately 375 to 688 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 · Model run: Next update expected:
Day Time (UTC) Temp. (°C) Humidity (%) Wind (km/h) Wind (knots) Wind (Bft) Direction Precip. (mm) Snow (cm) Pressure (hPa) Freezing (m) Conditions | Wednesday, 04/11 06:00 10 89 3 2 1B SW — — 1021 3133 Overcast 81% cloud 09:00 9.8 89 4 2 1B W 0.03 0 1019 3127 Cloudy 77% cloud 12:00 11.1 86 5 3 1B W 0.01 0 1018 3132 Cloudy 61% cloud 15:00 18.9 63 6 3 1B SW 0 0 1017 3132 Overcast 89% cloud 18:00 22.6 46 8 4 2B SW 0.01 0 1015 3124 Partly cloudy 29% cloud 21:00 18.5 62 4 2 1B SW 0 0 1015 3122 Partly cloudy 27% cloud Thursday, 05/11 00:00 13.6 76 5 3 1B W 0 0 1015 3122 Clear 13% cloud 03:00 12.9 74 4 2 1B W 0 0 1014 3115 Partly cloudy 32% cloud 06:00 12.7 72 4 2 1B W 0 0 1013 3107 Clear 2% cloud 09:00 12.4 72 4 2 1B SW 0 0 1013 3097 Clear 14% cloud 12:00 11.9 70 5 3 1B SW 0 0 1012 3089 Cloudy 61% cloud 15:00 17.5 61 9 5 2B SW 0 0 1011 3080 Overcast 92% cloud 18:00 16.1 88 12 6 2B S 0.74 0 1010 3061 Overcast 100% cloud 21:00 15.2 95 9 5 2B SW 4.4 0 1009 3053 Overcast 100% cloud Friday, 06/11 00:00 15 94 7 4 2B SW 0.32 0 1010 3057 Overcast 98% cloud 03:00 14.9 94 8 4 2B SW 0.16 0 1010 3056 Overcast 97% cloud 06:00 14.4 95 6 3 2B SW 0.91 0 1010 3050 Overcast 81% cloud 09:00 13.3 94 4 2 1B NW 0.28 0 1010 3047 Overcast 95% cloud 12:00 12.3 94 4 2 1B W 0.03 0 1012 3049 Overcast 93% cloud 15:00 16 67 3 2 1B W 0.03 0 1013 3051 Overcast 100% cloud 18:00 18.2 48 5 2 1B SW 0 0 1011 3044 Overcast 96% cloud 21:00 15 64 1 1 1B W 0 0 1012 3046 Overcast 92% cloud Saturday, 07/11 00:00 10.9 80 5 3 1B N 0 0 1013 3048 Overcast 98% cloud 03:00 10.1 84 5 3 1B N 0 0 1013 3043 Overcast 100% cloud 06:00 9.9 84 5 2 1B N 0 0 1013 2980 Overcast 100% cloud 09:00 9.6 83 5 3 1B NE 0 0 1013 2846 Overcast 100% cloud 12:00 8.2 89 8 4 2B NE 0.08 0 1014 2696 Overcast 89% cloud 15:00 11.1 72 11 6 2B NE 0.08 0 1012 2754 Overcast 88% cloud 18:00 11.3 70 11 6 2B NE 0.23 0 1010 2730 Overcast 87% cloud 21:00 9.6 73 10 5 2B NE 0 0 1010 2682 Overcast 100% cloud Sunday, 08/11 00:00 8 78 10 5 2B NE 0.16 0 1009 2678 Overcast 100% cloud 03:00 6.6 91 8 4 2B NE 1.0 0 1008 2649 Overcast 100% cloud 06:00 5.9 93 4 2 1B N 6.3 0 1006 2194 Overcast 99% cloud 09:00 5 94 6 3 2B NW 3.6 0 1005 1833 Overcast 100% cloud 12:00 4.9 92 9 5 2B NW 0.51 0 1004 1479 Overcast 100% cloud 15:00 4.1 82 12 7 3B NW 0.31 0 1004 1539 Overcast 100% cloud 18:00 4.3 76 13 7 3B NW 0.92 0 1003 1585 Overcast 98% cloud 21:00 4.5 76 12 7 3B NW 0.11 0 1004 1208 Overcast 90% cloud Monday, 09/11 00:00 3.7 80 9 5 2B W 0 0 1003 1221 Overcast 88% cloud 03:00 2.8 83 7 4 2B W 0 0 1003 1028 Partly cloudy 37% cloud 06:00 1.7 87 6 3 2B W 0 0 1002 748 Partly cloudy 42% cloud 09:00 1 90 6 3 1B W 0 0 1001 < 577 Cloudy 65% cloud 12:00 2.2 89 7 4 2B W 0.05 0 1002 901 Overcast 86% cloud 15:00 6 60 17 9 3B NW 0 0 1003 1107 Cloudy 57% cloud 18:00 6.5 48 20 11 4B NW 0 0 1003 1083 Overcast 88% cloud 21:00 3.2 62 19 10 3B NW 0 0 1006 805 Overcast 95% cloud Tuesday, 10/11 00:00 2.4 62 22 12 4B NW 0 0 1008 750 Cloudy 79% cloud 03:00 1.2 65 19 10 3B NW 0 0 1009 601 Partly cloudy 21% cloud 06:00 0.4 71 14 7 3B NW 0 0 1010 < 577 Overcast 81% cloud |
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Forecast table times: UTC.
Coordinates: 44.1665492°N, -71.1653947°E · Requested elevation: 380 m. Model terrain: 574 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.
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 · Model run: Next update expected:
Day Time (UTC) Temp. (°C) Humidity (%) Wind (km/h) Wind (knots) Wind (Bft) Direction Precip. (mm) Snow (cm) Pressure (hPa) Freezing (m) Conditions | Wednesday, 04/11 06:00 9 93 7 4 2B W — — 1021 3133 Overcast 81% cloud 09:00 9.1 93 9 5 2B W 0.03 0 1019 3127 Cloudy 77% cloud 12:00 10.2 88 10 5 2B W 0.01 0 1018 3131 Cloudy 61% cloud 15:00 17.2 66 9 5 2B W 0 0 1017 3132 Overcast 89% cloud 18:00 20.6 49 10 6 2B W 0.01 0 1015 3124 Partly cloudy 30% cloud 21:00 16.9 64 6 3 1B W 0 0 1015 3122 Partly cloudy 27% cloud Thursday, 05/11 00:00 12.7 76 7 4 2B W 0 0 1015 3122 Clear 13% cloud 03:00 12.1 73 6 3 1B W 0 0 1014 3115 Partly cloudy 32% cloud 06:00 12.1 72 6 3 1B SW 0 0 1013 3107 Clear 2% cloud 09:00 11.8 71 7 4 2B SW 0 0 1013 3097 Clear 15% cloud 12:00 11.3 67 9 5 2B SW 0 0 1012 3089 Cloudy 61% cloud 15:00 16.2 61 14 8 3B SW 0 0 1011 3080 Overcast 92% cloud 18:00 14.7 92 17 9 3B SW 0.74 0 1010 3061 Overcast 100% cloud 21:00 13.7 99 14 8 3B SW 4.4 0 1009 3053 Overcast 100% cloud Friday, 06/11 00:00 13.5 99 11 6 2B SW 0.33 0 1010 3057 Overcast 98% cloud 03:00 13.5 97 13 7 3B SW 0.17 0 1010 3056 Overcast 98% cloud 06:00 13 99 11 6 2B SW 0.85 0 1010 3049 Overcast 82% cloud 09:00 11.8 98 7 4 2B W 0.30 0 1011 3046 Overcast 96% cloud 12:00 10.7 97 7 4 2B W 0.03 0 1012 3049 Overcast 93% cloud 15:00 13.9 70 5 3 1B W 0.03 0 1013 3051 Overcast 100% cloud 18:00 16 52 6 3 1B SW 0 0 1011 3044 Overcast 96% cloud 21:00 13.1 69 2 1 1B W 0 0 1012 3045 Overcast 91% cloud Saturday, 07/11 00:00 9.4 83 4 2 1B NW 0 0 1013 3048 Overcast 98% cloud 03:00 8.8 88 4 2 1B N 0 0 1013 3043 Overcast 100% cloud 06:00 8.5 88 5 3 1B NE 0 0 1013 2976 Overcast 100% cloud 09:00 8.1 88 6 3 2B NE 0 0 1013 2846 Overcast 100% cloud 12:00 6.8 94 9 5 2B NE 0.08 0 1014 2697 Overcast 90% cloud 15:00 9.4 77 13 7 3B NE 0.07 0 1012 2748 Overcast 87% cloud 18:00 9.5 75 13 7 3B NE 0.22 0 1010 2727 Overcast 86% cloud 21:00 8 80 12 7 2B NE 0 0 1010 2681 Overcast 100% cloud Sunday, 08/11 00:00 6.6 85 12 7 3B NE 0.17 0 1009 2676 Overcast 100% cloud 03:00 5.3 96 10 5 2B NE 1.0 0 1008 2649 Overcast 100% cloud 06:00 4.4 98 5 3 1B N 6.2 0 1006 2191 Overcast 99% cloud 09:00 3.4 99 8 5 2B N 3.8 0 1005 1831 Overcast 100% cloud 12:00 3.3 97 13 7 3B NW 0.54 0 1004 1466 Overcast 100% cloud 15:00 2.5 87 18 10 3B NW 0.33 0 1004 1518 Overcast 100% cloud 18:00 2.7 82 19 10 3B NW 0.95 0 1003 1562 Overcast 98% cloud 21:00 2.7 82 19 10 3B NW 0.12 0 1004 1196 Overcast 91% cloud Monday, 09/11 00:00 2.1 82 16 9 3B NW 0 0 1003 1199 Overcast 88% cloud 03:00 1.2 86 14 7 3B W 0 0 1003 1010 Partly cloudy 39% cloud 06:00 0.1 91 11 6 2B W 0 0 1002 727 Partly cloudy 44% cloud 09:00 -0.4 94 10 5 2B W 0 0 1002 < 598 Cloudy 65% cloud 12:00 0.8 93 11 6 2B NW 0.06 0 1002 893 Overcast 87% cloud 15:00 3.8 64 22 12 4B NW 0 0 1003 1101 Cloudy 59% cloud 18:00 4.2 53 25 14 4B NW 0 0 1003 1081 Overcast 89% cloud 21:00 1 69 24 13 4B NW 0 0 1006 802 Overcast 96% cloud Tuesday, 10/11 00:00 0.4 68 30 16 5B NW 0 0 1008 747 Overcast 81% cloud 03:00 -0.6 70 26 14 4B NW 0 0 1009 < 598 Partly cloudy 21% cloud 06:00 -1.3 74 21 11 4B NW 0 0 1010 < 598 Overcast 82% cloud |
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Forecast table times: UTC.
Coordinates: 44.1774261°N, -71.1687757°E · Requested elevation: 688 m. Model terrain: 596 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.