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

41°F5°C wet-bulb in Palisades Tahoe, CA

42°F6°C air · 93% humidity

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

Next snowmaking window: tomorrow night 11 PM – 10 AM.

Next 48 hours wet-bulb by hour; columns below the line are snowmaking hours
28°F−2°C 24°F−5°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 5 PM42°F6°C93%40.7°F4.8°CToo warm
Thu 6 PM41°F5°C92%39.5°F4.2°CToo warm
Thu 7 PM40°F4°C93%38.7°F3.7°CToo warm
Thu 8 PM39°F4°C92%37.5°F3.1°CToo warm
Thu 9 PM38°F3°C97%37.3°F3.0°CToo warm
Thu 10 PM37°F3°C100%36.8°F2.7°CToo warm
Thu 11 PM36°F2°C100%35.8°F2.1°CToo warm
Fri 12 AM36°F2°C100%35.8°F2.1°CToo warm
Fri 1 AM36°F2°C100%35.8°F2.1°CToo warm
Fri 2 AM36°F2°C100%35.8°F2.1°CToo warm
Fri 3 AM35°F2°C100%34.8°F1.5°CToo warm
Fri 4 AM35°F2°C100%34.8°F1.5°CToo warm
Fri 5 AM34°F1°C100%33.8°F1.0°CToo warm
Fri 6 AM33°F1°C100%32.8°F0.4°CToo warm
Fri 7 AM32°F0°C100%31.8°F−0.1°CToo warm
Fri 8 AM30°F−1°C100%29.7°F−1.3°CToo warm
Fri 9 AM34°F1°C100%33.8°F1.0°CToo warm
Fri 10 AM37°F3°C99%36.6°F2.6°CToo warm
Fri 11 AM40°F4°C80%36.7°F2.6°CToo warm
Fri 12 PM43°F6°C62%36.8°F2.7°CToo warm
Fri 1 PM46°F8°C50%37.7°F3.2°CToo warm
Fri 2 PM48°F9°C44%38.5°F3.6°CToo warm
Fri 3 PM49°F9°C43%39.2°F4.0°CToo warm
Fri 4 PM49°F9°C43%39.2°F4.0°CToo warm
Fri 5 PM47°F8°C44%37.7°F3.2°CToo warm
Fri 6 PM44°F7°C49%35.9°F2.2°CToo warm
Fri 7 PM42°F6°C56%35.1°F1.7°CToo warm
Fri 8 PM38°F3°C60%32.1°F0.0°CToo warm
Fri 9 PM35°F2°C65%29.9°F−1.1°CToo warm
Fri 10 PM34°F1°C68%29.4°F−1.5°CToo warm
Fri 11 PM32°F0°C69%27.7°F−2.4°CMarginal
Sat 12 AM32°F0°C72%28.0°F−2.2°CMarginal
Sat 1 AM31°F−1°C76%27.5°F−2.5°CMarginal
Sat 2 AM30°F−1°C79%26.9°F−2.8°CMarginal
Sat 3 AM29°F−2°C82%26.4°F−3.1°CMarginal
Sat 4 AM29°F−2°C82%26.4°F−3.1°CMarginal
Sat 5 AM27°F−3°C85%24.8°F−4.0°CGreat
Sat 6 AM27°F−3°C90%25.4°F−3.7°CMarginal
Sat 7 AM25°F−4°C93%23.8°F−4.6°CGreat
Sat 8 AM26°F−3°C91%24.5°F−4.1°CGreat
Sat 9 AM31°F−1°C82%28.3°F−2.1°CMarginal
Sat 10 AM38°F3°C68%33.1°F0.6°CToo warm
Sat 11 AM45°F7°C55%37.6°F3.1°CToo warm
Sat 12 PM50°F10°C46%40.5°F4.7°CToo warm
Sat 1 PM53°F12°C40%42.0°F5.5°CToo warm
Sat 2 PM55°F13°C37%43.0°F6.1°CToo warm
Sat 3 PM56°F13°C36%43.6°F6.5°CToo warm
Sat 4 PM55°F13°C38%43.2°F6.2°CToo warm

Right now

Light rain likely
42°F6°C
Wind
3 mph6 km/h, gusts 15 mph24 km/h
Humidity
93%
Precipitation
70% 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. This Afternoon 45°F7°C 29°F−2°C Light Rain Likely
  2. Fri 49°F9°C 25°F−4°C Rain And Snow Likely then Mostly Sunny
  3. Sat 56°F13°C 27°F−3°C Sunny
  4. Sun 59°F15°C 29°F−2°C Sunny
  5. Mon 56°F13°C 28°F−2°C Mostly Sunny
  6. Tue 57°F14°C 29°F−2°C Sunny
  7. Wed 57°F14°C 30°F−1°C Mostly Sunny

Forecast for 5 PM · NOAA grid updated 4:30 PM · grid elevation 7,139 ft

Checked at the base area (6,200 ft); the summit (9,050 ft) is usually colder.

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