A live wet-bulb check. Can snowmakers run where you are, and when?
Can they make snow at Sun Valley?
Base: 37°F3°C air · 70% humidity
Next snowmaking window: tomorrow 7 AM – 8 AM.
Use the left and right arrow keys to step through hours.
- Ideal
- Great
- Marginal
- Too warm
- Night
Hourly table
| Hour | Air | Humidity | Wet-bulb | Snowmaking |
|---|---|---|---|---|
| Sun 10 AM | 37°F3°C | 70% | 32.4°F0.2°C | Too warm |
| Sun 11 AM | 42°F6°C | 61% | 35.8°F2.1°C | Too warm |
| Sun 12 PM | 50°F10°C | 48% | 40.9°F4.9°C | Too warm |
| Sun 1 PM | 53°F12°C | 43% | 42.5°F5.8°C | Too warm |
| Sun 2 PM | 54°F12°C | 41% | 43.0°F6.1°C | Too warm |
| Sun 3 PM | 56°F13°C | 40% | 44.4°F6.9°C | Too warm |
| Sun 4 PM | 56°F13°C | 41% | 44.6°F7.0°C | Too warm |
| Sun 5 PM | 54°F12°C | 44% | 43.5°F6.4°C | Too warm |
| Sun 6 PM | 51°F11°C | 54% | 42.7°F6.0°C | Too warm |
| Sun 7 PM | 47°F8°C | 64% | 40.8°F4.9°C | Too warm |
| Sun 8 PM | 41°F5°C | 76% | 37.0°F2.8°C | Too warm |
| Sun 9 PM | 39°F4°C | 84% | 36.3°F2.4°C | Too warm |
| Sun 10 PM | 39°F4°C | 82% | 36.0°F2.2°C | Too warm |
| Sun 11 PM | 37°F3°C | 83% | 34.2°F1.2°C | Too warm |
| Mon 12 AM | 36°F2°C | 86% | 33.7°F0.9°C | Too warm |
| Mon 1 AM | 34°F1°C | 88% | 32.0°F0.0°C | Too warm |
| Mon 2 AM | 33°F1°C | 90% | 31.3°F−0.4°C | Too warm |
| Mon 3 AM | 32°F0°C | 95% | 31.0°F−0.5°C | Too warm |
| Mon 4 AM | 31°F−1°C | 97% | 30.3°F−0.9°C | Too warm |
| Mon 5 AM | 30°F−1°C | 100% | 29.7°F−1.3°C | Too warm |
| Mon 6 AM | 30°F−1°C | 100% | 29.7°F−1.3°C | Too warm |
| Mon 7 AM | 28°F−2°C | 100% | 27.7°F−2.4°C | Marginal |
| Mon 8 AM | 29°F−2°C | 100% | 28.7°F−1.8°C | Too warm |
| Mon 9 AM | 30°F−1°C | 100% | 29.7°F−1.3°C | Too warm |
| Mon 10 AM | 38°F3°C | 83% | 35.2°F1.8°C | Too warm |
| Mon 11 AM | 43°F6°C | 74% | 38.6°F3.7°C | Too warm |
| Mon 12 PM | 50°F10°C | 59% | 42.7°F5.9°C | Too warm |
| Mon 1 PM | 51°F11°C | 55% | 42.9°F6.0°C | Too warm |
| Mon 2 PM | 51°F11°C | 56% | 43.1°F6.1°C | Too warm |
| Mon 3 PM | 52°F11°C | 56% | 43.9°F6.6°C | Too warm |
| Mon 4 PM | 51°F11°C | 56% | 43.1°F6.1°C | Too warm |
| Mon 5 PM | 50°F10°C | 56% | 42.2°F5.7°C | Too warm |
| Mon 6 PM | 47°F8°C | 61% | 40.3°F4.6°C | Too warm |
| Mon 7 PM | 42°F6°C | 69% | 36.9°F2.7°C | Too warm |
| Mon 8 PM | 39°F4°C | 78% | 35.4°F1.9°C | Too warm |
| Mon 9 PM | 37°F3°C | 86% | 34.7°F1.5°C | Too warm |
| Mon 10 PM | 35°F2°C | 89% | 33.1°F0.6°C | Too warm |
| Mon 11 PM | 34°F1°C | 90% | 32.3°F0.2°C | Too warm |
| Tue 12 AM | 32°F0°C | 90% | 30.3°F−0.9°C | Too warm |
| Tue 1 AM | 30°F−1°C | 93% | 28.8°F−1.8°C | Too warm |
| Tue 2 AM | 28°F−2°C | 96% | 27.2°F−2.7°C | Marginal |
| Tue 3 AM | 27°F−3°C | 99% | 26.6°F−3.0°C | Marginal |
| Tue 4 AM | 26°F−3°C | 100% | 25.7°F−3.5°C | Marginal |
| Tue 5 AM | 25°F−4°C | 100% | 24.7°F−4.0°C | Great |
| Tue 6 AM | 25°F−4°C | 100% | 24.7°F−4.0°C | Great |
| Tue 7 AM | 24°F−4°C | 100% | 23.7°F−4.6°C | Great |
| Tue 8 AM | 23°F−5°C | 100% | 22.7°F−5.2°C | Great |
| Tue 9 AM | 24°F−4°C | 100% | 23.7°F−4.6°C | Great |
Summit: 32°F0°C air · 65% humidity
Snowmaking conditions now, until today 11 AM.
Use the left and right arrow keys to step through hours.
- Ideal
- Great
- Marginal
- Too warm
- Night
Hourly table
| Hour | Air | Humidity | Wet-bulb | Snowmaking |
|---|---|---|---|---|
| Sun 10 AM | 32°F0°C | 65% | 27.2°F−2.7°C | Marginal |
| Sun 11 AM | 36°F2°C | 57% | 29.9°F−1.2°C | Too warm |
| Sun 12 PM | 41°F5°C | 51% | 33.6°F0.9°C | Too warm |
| Sun 1 PM | 43°F6°C | 48% | 34.9°F1.6°C | Too warm |
| Sun 2 PM | 44°F7°C | 45% | 35.3°F1.9°C | Too warm |
| Sun 3 PM | 45°F7°C | 45% | 36.2°F2.3°C | Too warm |
| Sun 4 PM | 44°F7°C | 46% | 35.5°F1.9°C | Too warm |
| Sun 5 PM | 43°F6°C | 50% | 35.2°F1.8°C | Too warm |
| Sun 6 PM | 41°F5°C | 59% | 34.6°F1.5°C | Too warm |
| Sun 7 PM | 39°F4°C | 61% | 33.1°F0.6°C | Too warm |
| Sun 8 PM | 36°F2°C | 69% | 31.4°F−0.4°C | Too warm |
| Sun 9 PM | 34°F1°C | 75% | 30.3°F−1.0°C | Too warm |
| Sun 10 PM | 33°F1°C | 77% | 29.6°F−1.4°C | Too warm |
| Sun 11 PM | 33°F1°C | 75% | 29.3°F−1.5°C | Too warm |
| Mon 12 AM | 33°F1°C | 74% | 29.2°F−1.6°C | Too warm |
| Mon 1 AM | 33°F1°C | 71% | 28.8°F−1.8°C | Too warm |
| Mon 2 AM | 33°F1°C | 72% | 28.9°F−1.7°C | Too warm |
| Mon 3 AM | 32°F0°C | 71% | 27.9°F−2.3°C | Marginal |
| Mon 4 AM | 32°F0°C | 72% | 28.0°F−2.2°C | Marginal |
| Mon 5 AM | 32°F0°C | 73% | 28.1°F−2.2°C | Marginal |
| Mon 6 AM | 32°F0°C | 74% | 28.2°F−2.1°C | Marginal |
| Mon 7 AM | 31°F−1°C | 74% | 27.3°F−2.6°C | Marginal |
| Mon 8 AM | 31°F−1°C | 74% | 27.3°F−2.6°C | Marginal |
| Mon 9 AM | 31°F−1°C | 77% | 27.7°F−2.4°C | Marginal |
| Mon 10 AM | 33°F1°C | 74% | 29.2°F−1.6°C | Too warm |
| Mon 11 AM | 37°F3°C | 70% | 32.4°F0.2°C | Too warm |
| Mon 12 PM | 39°F4°C | 63% | 33.3°F0.7°C | Too warm |
| Mon 1 PM | 41°F5°C | 63% | 35.2°F1.8°C | Too warm |
| Mon 2 PM | 41°F5°C | 62% | 35.0°F1.7°C | Too warm |
| Mon 3 PM | 40°F4°C | 64% | 34.4°F1.3°C | Too warm |
| Mon 4 PM | 39°F4°C | 64% | 33.5°F0.8°C | Too warm |
| Mon 5 PM | 39°F4°C | 64% | 33.5°F0.8°C | Too warm |
| Mon 6 PM | 34°F1°C | 71% | 29.8°F−1.2°C | Too warm |
| Mon 7 PM | 35°F2°C | 70% | 30.6°F−0.8°C | Too warm |
| Mon 8 PM | 34°F1°C | 73% | 30.0°F−1.1°C | Too warm |
| Mon 9 PM | 32°F0°C | 78% | 28.7°F−1.8°C | Too warm |
| Mon 10 PM | 31°F−1°C | 78% | 27.8°F−2.3°C | Marginal |
| Mon 11 PM | 30°F−1°C | 77% | 26.7°F−2.9°C | Marginal |
| Tue 12 AM | 29°F−2°C | 75% | 25.5°F−3.6°C | Marginal |
| Tue 1 AM | 28°F−2°C | 74% | 24.5°F−4.2°C | Great |
| Tue 2 AM | 28°F−2°C | 73% | 24.4°F−4.2°C | Great |
| Tue 3 AM | 27°F−3°C | 73% | 23.4°F−4.8°C | Great |
| Tue 4 AM | 26°F−3°C | 74% | 22.6°F−5.2°C | Great |
| Tue 5 AM | 26°F−3°C | 75% | 22.7°F−5.2°C | Great |
| Tue 6 AM | 26°F−3°C | 76% | 22.8°F−5.1°C | Great |
| Tue 7 AM | 25°F−4°C | 77% | 21.9°F−5.6°C | Great |
| Tue 8 AM | 24°F−4°C | 77% | 21.0°F−6.1°C | Great |
| Tue 9 AM | 24°F−4°C | 75% | 20.8°F−6.2°C | Great |
Right now at the base
- Wind
- 2 mph4 km/h
- Humidity
- 70%
- Precipitation
- 0% chance
Nearest station KSUN at 9:55 AM: Clear, 37°F3°C, 75% humidity (33°F1°C wet-bulb), wind 11 mph18 km/h.
Snow forecast new snow at the base, NOAA forecast
- Next 24 h
- 0″0 cm
- Next 48 h
- 0.1″0.3 cm
- Next 72 h
- 0.1″0.3 cm
Use the left and right arrow keys to step through 6-hour periods.
Snowfall table
| Period | New snow |
|---|---|
| Sun 10 AM – 4 PM | 0″0 cm |
| Sun 4 PM – 10 PM | 0″0 cm |
| Sun 10 PM – 4 AM | 0″0 cm |
| Mon 4 AM – 10 AM | 0″0 cm |
| Mon 10 AM – 4 PM | 0″0 cm |
| Mon 4 PM – 10 PM | 0″0 cm |
| Mon 10 PM – 4 AM | 0.1″0.2 cm |
| Tue 4 AM – 10 AM | 0.0″0.1 cm |
| Tue 10 AM – 4 PM | 0″0 cm |
| Tue 4 PM – 10 PM | 0″0 cm |
| Tue 10 PM – 4 AM | 0″0 cm |
| Wed 4 AM – 10 AM | 0″0 cm |
7-day outlook
- Today 56°F13°C 27°F−3°C Sunny
- Mon 53°F12°C 22°F−6°C Partly Sunny then Showers And Thunderstorms Likely
- Tue 47°F8°C 20°F−7°C Mostly Sunny
- Wed 49°F9°C 24°F−4°C Sunny
- Thu 50°F10°C 25°F−4°C Chance Light Snow
- Fri 47°F8°C 22°F−6°C Chance Light Snow ❄︎ <0.5″<1.3 cm
- Sat 47°F8°C 21°F−6°C Chance Light Snow
Forecast for 10 AM · NOAA grid updated 5:31 AM
About this forecast
Sun Valley is a ski resort in Idaho with a base at 5,750 ft and a summit at 9,150 ft, 3,400 ft of vertical. This page checks NOAA's hourly forecast at the base and the summit every time you load it and works out the wet-bulb temperature, which is what decides whether snow guns can run. Snowmakers can start below 28°F−2°C wet-bulb, and make good snow below 25°F−4°C.
Other ski resorts in Idaho
Base: NOAA's forecast for the base area (forecast grid elevation 6,001 ft). Summit: NOAA's forecast for the top of the mountain (forecast grid elevation 8,163 ft).
Click a pin or anywhere on the map to check it.