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 Purgatory Resort, CO

47°F8°C air · 90% 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 34°F1°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 PM47°F8°C90%45.1°F7.3°CToo warm
Thu 7 PM48°F9°C90%46.1°F7.8°CToo warm
Thu 8 PM46°F8°C94%44.8°F7.1°CToo warm
Thu 9 PM47°F8°C91%45.3°F7.4°CToo warm
Thu 10 PM46°F8°C91%44.3°F6.8°CToo warm
Thu 11 PM46°F8°C92%44.5°F6.9°CToo warm
Fri 12 AM46°F8°C92%44.5°F6.9°CToo warm
Fri 1 AM45°F7°C93%43.6°F6.5°CToo warm
Fri 2 AM45°F7°C92%43.5°F6.4°CToo warm
Fri 3 AM44°F7°C92%42.5°F5.8°CToo warm
Fri 4 AM43°F6°C95%42.0°F5.6°CToo warm
Fri 5 AM42°F6°C95%41.0°F5.0°CToo warm
Fri 6 AM42°F6°C95%41.0°F5.0°CToo warm
Fri 7 AM40°F4°C96%39.2°F4.0°CToo warm
Fri 8 AM40°F4°C92%38.5°F3.6°CToo warm
Fri 9 AM40°F4°C94%38.8°F3.8°CToo warm
Fri 10 AM42°F6°C89%40.0°F4.5°CToo warm
Fri 11 AM45°F7°C79%41.3°F5.2°CToo warm
Fri 12 PM48°F9°C71%42.8°F6.0°CToo warm
Fri 1 PM49°F9°C66%42.9°F6.1°CToo warm
Fri 2 PM50°F10°C62%43.2°F6.2°CToo warm
Fri 3 PM50°F10°C60%42.8°F6.0°CToo warm
Fri 4 PM50°F10°C58%42.5°F5.8°CToo warm
Fri 5 PM48°F9°C62%41.4°F5.2°CToo warm
Fri 6 PM45°F7°C71%40.0°F4.5°CToo warm
Fri 7 PM42°F6°C77%38.1°F3.4°CToo warm
Fri 8 PM38°F3°C87%35.8°F2.1°CToo warm
Fri 9 PM37°F3°C87%34.8°F1.6°CToo warm
Fri 10 PM37°F3°C88%35.0°F1.6°CToo warm
Fri 11 PM37°F3°C89%35.1°F1.7°CToo warm
Sat 12 AM37°F3°C88%35.0°F1.6°CToo warm
Sat 1 AM37°F3°C89%35.1°F1.7°CToo warm
Sat 2 AM37°F3°C89%35.1°F1.7°CToo warm
Sat 3 AM36°F2°C91%34.4°F1.3°CToo warm
Sat 4 AM36°F2°C91%34.4°F1.3°CToo warm
Sat 5 AM36°F2°C92%34.6°F1.4°CToo warm
Sat 6 AM35°F2°C95%34.0°F1.1°CToo warm
Sat 7 AM35°F2°C96%34.2°F1.2°CToo warm
Sat 8 AM36°F2°C96%35.2°F1.8°CToo warm
Sat 9 AM37°F3°C96%36.2°F2.3°CToo warm
Sat 10 AM40°F4°C90%38.2°F3.4°CToo warm
Sat 11 AM43°F6°C83%40.0°F4.5°CToo warm
Sat 12 PM46°F8°C77%41.9°F5.5°CToo warm
Sat 1 PM48°F9°C73%43.2°F6.2°CToo warm
Sat 2 PM49°F9°C71%43.8°F6.5°CToo warm
Sat 3 PM48°F9°C71%42.8°F6.0°CToo warm
Sat 4 PM47°F8°C74%42.4°F5.8°CToo warm
Sat 5 PM45°F7°C80%41.5°F5.3°CToo warm

Right now

Heavy rain showers
47°F8°C feels like 43°F6°C
Wind
10 mph17 km/h, gusts 21 mph33 km/h
Humidity
90%
Precipitation
98% 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 Showers And Thunderstorms
  2. Fri 51°F11°C 35°F2°C Showers And Thunderstorms Likely
  3. Sat 50°F10°C 34°F1°C Slight Chance T-storms then Chance T-storms
  4. Sun 47°F8°C 27°F−3°C Slight Chance T-storms
  5. Mon 49°F9°C 25°F−4°C Slight Chance Snow Showers then Slight Chance Rain Showers
  6. Tue 51°F11°C 27°F−3°C Sunny
  7. Wed 52°F11°C 28°F−2°C Mostly Sunny
  8. Thu 50°F10°C Partly Sunny then Slight Chance Rain Showers

Forecast for 6 PM · NOAA grid updated 4:12 PM · grid elevation 8,816 ft

Checked at the base area (8,793 ft); the summit (10,822 ft) is usually colder.

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