A live wet-bulb check. Can snowmakers run where you are, and when?

How this works
We pull NOAA's hourly forecast for your location and calculate the wet-bulb temperature for each hour. Snowmakers rely on wet-bulb because it accounts for both cold and dry air — the two conditions that let water droplets freeze in flight. Below 28°F−2°C they can run; below 25°F−4°C the snow is good quality.
NO

45°F7°C wet-bulb in Vail, CO

49°F9°C air · 78% humidity

Too warm for snowmaking
Colder Snowmaking line 28°F−2°C Warmer

No snowmaking window in the next 48 hours.

Next 48 hours wet-bulb by hour; columns below the line are snowmaking hours
28°F−2°C 30°F−1°C Now Fri Sat

Use the left and right arrow keys to step through hours.

  • Ideal
  • Great
  • Marginal
  • Too warm
  • Night
Hourly table
HourAirHumidityWet-bulbSnowmaking
Thu 6 PM49°F9°C78%45.0°F7.2°CToo warm
Thu 7 PM51°F11°C72%45.8°F7.7°CToo warm
Thu 8 PM49°F9°C76%44.6°F7.0°CToo warm
Thu 9 PM49°F9°C75%44.5°F6.9°CToo warm
Thu 10 PM48°F9°C76%43.7°F6.5°CToo warm
Thu 11 PM48°F9°C79%44.2°F6.8°CToo warm
Fri 12 AM47°F8°C81%43.6°F6.4°CToo warm
Fri 1 AM46°F8°C80%42.4°F5.8°CToo warm
Fri 2 AM46°F8°C81%42.6°F5.9°CToo warm
Fri 3 AM45°F7°C82%41.8°F5.4°CToo warm
Fri 4 AM43°F6°C87%40.7°F4.8°CToo warm
Fri 5 AM42°F6°C87%39.7°F4.3°CToo warm
Fri 6 AM42°F6°C87%39.7°F4.3°CToo warm
Fri 7 AM40°F4°C90%38.2°F3.4°CToo warm
Fri 8 AM40°F4°C91%38.4°F3.5°CToo warm
Fri 9 AM42°F6°C90%40.2°F4.5°CToo warm
Fri 10 AM46°F8°C76%41.8°F5.4°CToo warm
Fri 11 AM50°F10°C61%43.0°F6.1°CToo warm
Fri 12 PM54°F12°C49%44.4°F6.9°CToo warm
Fri 1 PM56°F13°C42%44.8°F7.1°CToo warm
Fri 2 PM57°F14°C38%44.8°F7.1°CToo warm
Fri 3 PM58°F14°C36%45.2°F7.3°CToo warm
Fri 4 PM57°F14°C36%44.4°F6.9°CToo warm
Fri 5 PM55°F13°C39%43.4°F6.3°CToo warm
Fri 6 PM52°F11°C43%41.7°F5.4°CToo warm
Fri 7 PM47°F8°C52%38.9°F3.8°CToo warm
Fri 8 PM44°F7°C59%37.3°F2.9°CToo warm
Fri 9 PM42°F6°C61%35.8°F2.1°CToo warm
Fri 10 PM41°F5°C63%35.2°F1.8°CToo warm
Fri 11 PM39°F4°C68%34.0°F1.1°CToo warm
Sat 12 AM38°F3°C70%33.4°F0.8°CToo warm
Sat 1 AM36°F2°C72%31.8°F−0.1°CToo warm
Sat 2 AM36°F2°C73%31.9°F−0.1°CToo warm
Sat 3 AM35°F2°C76%31.3°F−0.4°CToo warm
Sat 4 AM34°F1°C77%30.5°F−0.8°CToo warm
Sat 5 AM33°F1°C78%29.7°F−1.3°CToo warm
Sat 6 AM33°F1°C77%29.6°F−1.4°CToo warm
Sat 7 AM33°F1°C78%29.7°F−1.3°CToo warm
Sat 8 AM35°F2°C77%31.5°F−0.3°CToo warm
Sat 9 AM36°F2°C78%32.6°F0.3°CToo warm
Sat 10 AM41°F5°C69%36.0°F2.2°CToo warm
Sat 11 AM46°F8°C59%39.1°F3.9°CToo warm
Sat 12 PM51°F11°C51%42.2°F5.7°CToo warm
Sat 1 PM53°F12°C47%43.2°F6.2°CToo warm
Sat 2 PM54°F12°C45%43.7°F6.5°CToo warm
Sat 3 PM53°F12°C45%42.9°F6.0°CToo warm
Sat 4 PM52°F11°C45%42.0°F5.6°CToo warm
Sat 5 PM50°F10°C48%40.9°F4.9°CToo warm

Right now

Light rain showers likely
49°F9°C
Wind
5 mph7 km/h, gusts 15 mph24 km/h
Humidity
78%
Precipitation
65% chance

Snow forecast new snow, NOAA forecast

Next 24 h
0″0 cm
Next 48 h
0″0 cm
Next 72 h
0″0 cm

No new snow in the forecast for the next 72 hours.

7-day outlook

  1. Tonight 40°F4°C Rain Showers Likely
  2. Fri 58°F14°C 33°F1°C Slight Chance Rain Showers then Mostly Sunny
  3. Sat 54°F12°C 34°F1°C Mostly Sunny then Chance Rain Showers
  4. Sun 54°F12°C 32°F0°C Slight Chance T-storms
  5. Mon 51°F11°C 29°F−2°C Chance Snow Showers
  6. Tue 54°F12°C 29°F−2°C Mostly Sunny
  7. Wed 52°F11°C 29°F−2°C Mostly Sunny
  8. Thu 54°F12°C Mostly Sunny

Forecast for 6 PM · NOAA grid updated 4:12 PM · grid elevation 8,950 ft

Checked at the base area (8,120 ft); the summit (11,570 ft) is usually colder.

Click a pin or anywhere on the map to check it.