A live wet-bulb check. Can snowmakers run where you are, and when?
Can they make snow at Arapahoe Basin?
Base: 30°F−1°C air · 75% humidity
Snowmaking conditions now, until today 3 PM.
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 | 30°F−1°C | 75% | 26.5°F−3.1°C | Marginal |
| Sun 11 AM | 31°F−1°C | 69% | 26.7°F−2.9°C | Marginal |
| Sun 12 PM | 33°F1°C | 61% | 27.7°F−2.4°C | Marginal |
| Sun 1 PM | 34°F1°C | 56% | 28.0°F−2.2°C | Marginal |
| Sun 2 PM | 34°F1°C | 56% | 28.0°F−2.2°C | Marginal |
| Sun 3 PM | 35°F2°C | 54% | 28.7°F−1.8°C | Too warm |
| Sun 4 PM | 33°F1°C | 58% | 27.4°F−2.6°C | Marginal |
| Sun 5 PM | 31°F−1°C | 66% | 26.4°F−3.1°C | Marginal |
| Sun 6 PM | 30°F−1°C | 75% | 26.5°F−3.1°C | Marginal |
| Sun 7 PM | 29°F−2°C | 81% | 26.2°F−3.2°C | Marginal |
| Sun 8 PM | 28°F−2°C | 85% | 25.8°F−3.5°C | Marginal |
| Sun 9 PM | 29°F−2°C | 81% | 26.2°F−3.2°C | Marginal |
| Sun 10 PM | 29°F−2°C | 81% | 26.2°F−3.2°C | Marginal |
| Sun 11 PM | 29°F−2°C | 81% | 26.2°F−3.2°C | Marginal |
| Mon 12 AM | 29°F−2°C | 81% | 26.2°F−3.2°C | Marginal |
| Mon 1 AM | 29°F−2°C | 81% | 26.2°F−3.2°C | Marginal |
| Mon 2 AM | 29°F−2°C | 81% | 26.2°F−3.2°C | Marginal |
| Mon 3 AM | 29°F−2°C | 81% | 26.2°F−3.2°C | Marginal |
| Mon 4 AM | 27°F−3°C | 85% | 24.8°F−4.0°C | Great |
| Mon 5 AM | 26°F−3°C | 85% | 23.8°F−4.6°C | Great |
| Mon 6 AM | 27°F−3°C | 85% | 24.8°F−4.0°C | Great |
| Mon 7 AM | 24°F−4°C | 100% | 23.7°F−4.6°C | Great |
| Mon 8 AM | 25°F−4°C | 88% | 23.2°F−4.9°C | Great |
| Mon 9 AM | 23°F−5°C | 92% | 21.7°F−5.7°C | Great |
| Mon 10 AM | 23°F−5°C | 88% | 21.2°F−6.0°C | Great |
| Mon 11 AM | 25°F−4°C | 81% | 22.4°F−5.3°C | Great |
| Mon 12 PM | 27°F−3°C | 71% | 23.2°F−4.9°C | Great |
| Mon 1 PM | 29°F−2°C | 60% | 24.0°F−4.5°C | Great |
| Mon 2 PM | 30°F−1°C | 55% | 24.4°F−4.2°C | Great |
| Mon 3 PM | 32°F0°C | 49% | 25.6°F−3.5°C | Marginal |
| Mon 4 PM | 30°F−1°C | 55% | 24.4°F−4.2°C | Great |
| Mon 5 PM | 29°F−2°C | 53% | 23.4°F−4.8°C | Great |
| Mon 6 PM | 27°F−3°C | 60% | 22.2°F−5.5°C | Great |
| Mon 7 PM | 26°F−3°C | 65% | 21.7°F−5.7°C | Great |
| Mon 8 PM | 25°F−4°C | 68% | 21.1°F−6.1°C | Great |
| Mon 9 PM | 24°F−4°C | 71% | 20.4°F−6.4°C | Great |
| Mon 10 PM | 24°F−4°C | 68% | 20.1°F−6.6°C | Great |
| Mon 11 PM | 25°F−4°C | 62% | 20.5°F−6.4°C | Great |
| Tue 12 AM | 25°F−4°C | 60% | 20.4°F−6.5°C | Great |
| Tue 1 AM | 25°F−4°C | 60% | 20.4°F−6.5°C | Great |
| Tue 2 AM | 25°F−4°C | 57% | 20.1°F−6.6°C | Great |
| Tue 3 AM | 26°F−3°C | 55% | 20.9°F−6.2°C | Great |
| Tue 4 AM | 26°F−3°C | 52% | 20.7°F−6.3°C | Great |
| Tue 5 AM | 26°F−3°C | 50% | 20.5°F−6.4°C | Great |
| Tue 6 AM | 26°F−3°C | 50% | 20.5°F−6.4°C | Great |
| Tue 7 AM | 26°F−3°C | 50% | 20.5°F−6.4°C | Great |
| Tue 8 AM | 26°F−3°C | 52% | 20.7°F−6.3°C | Great |
| Tue 9 AM | 26°F−3°C | 52% | 20.7°F−6.3°C | Great |
Summit: 26°F−3°C air · 85% humidity (estimated)
Snowmaking conditions now, lasting through the 48-hour forecast.
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 | 26°F−3°C | 85% | 23.6°F−4.7°C | Great |
| Sun 11 AM | 27°F−3°C | 78% | 23.8°F−4.6°C | Great |
| Sun 12 PM | 29°F−2°C | 69% | 24.7°F−4.1°C | Great |
| Sun 1 PM | 30°F−1°C | 63% | 25.0°F−3.9°C | Marginal |
| Sun 2 PM | 30°F−1°C | 63% | 25.0°F−3.9°C | Marginal |
| Sun 3 PM | 31°F−1°C | 61% | 25.7°F−3.5°C | Marginal |
| Sun 4 PM | 29°F−2°C | 65% | 24.3°F−4.3°C | Great |
| Sun 5 PM | 27°F−3°C | 75% | 23.4°F−4.8°C | Great |
| Sun 6 PM | 26°F−3°C | 85% | 23.6°F−4.7°C | Great |
| Sun 7 PM | 25°F−4°C | 92% | 23.5°F−4.7°C | Great |
| Sun 8 PM | 24°F−5°C | 96% | 23.0°F−5.0°C | Great |
| Sun 9 PM | 25°F−4°C | 92% | 23.5°F−4.7°C | Great |
| Sun 10 PM | 25°F−4°C | 92% | 23.5°F−4.7°C | Great |
| Sun 11 PM | 25°F−4°C | 92% | 23.5°F−4.7°C | Great |
| Mon 12 AM | 25°F−4°C | 92% | 23.5°F−4.7°C | Great |
| Mon 1 AM | 25°F−4°C | 92% | 23.5°F−4.7°C | Great |
| Mon 2 AM | 25°F−4°C | 92% | 23.5°F−4.7°C | Great |
| Mon 3 AM | 25°F−4°C | 92% | 23.5°F−4.7°C | Great |
| Mon 4 AM | 23°F−5°C | 96% | 22.1°F−5.5°C | Great |
| Mon 5 AM | 22°F−6°C | 96% | 21.1°F−6.1°C | Great |
| Mon 6 AM | 23°F−5°C | 96% | 22.1°F−5.5°C | Great |
| Mon 7 AM | 20°F−7°C | 100% | 19.5°F−6.9°C | Great |
| Mon 8 AM | 21°F−6°C | 100% | 20.5°F−6.4°C | Great |
| Mon 9 AM | 19°F−7°C | 100% | 18.5°F−7.5°C | Ideal |
| Mon 10 AM | 19°F−7°C | 100% | 18.5°F−7.5°C | Ideal |
| Mon 11 AM | 21°F−6°C | 92% | 19.5°F−6.9°C | Great |
| Mon 12 PM | 23°F−5°C | 80% | 20.2°F−6.5°C | Great |
| Mon 1 PM | 25°F−4°C | 68% | 20.9°F−6.2°C | Great |
| Mon 2 PM | 26°F−3°C | 62% | 21.3°F−5.9°C | Great |
| Mon 3 PM | 28°F−2°C | 55% | 22.5°F−5.3°C | Great |
| Mon 4 PM | 26°F−3°C | 62% | 21.3°F−5.9°C | Great |
| Mon 5 PM | 25°F−4°C | 60% | 20.2°F−6.6°C | Great |
| Mon 6 PM | 23°F−5°C | 68% | 19.0°F−7.2°C | Ideal |
| Mon 7 PM | 22°F−6°C | 74% | 18.6°F−7.4°C | Ideal |
| Mon 8 PM | 21°F−6°C | 77% | 18.0°F−7.8°C | Ideal |
| Mon 9 PM | 20°F−7°C | 81% | 17.4°F−8.1°C | Ideal |
| Mon 10 PM | 20°F−7°C | 77% | 17.0°F−8.3°C | Ideal |
| Mon 11 PM | 21°F−6°C | 70% | 17.4°F−8.1°C | Ideal |
| Tue 12 AM | 21°F−6°C | 68% | 17.2°F−8.2°C | Ideal |
| Tue 1 AM | 21°F−6°C | 68% | 17.2°F−8.2°C | Ideal |
| Tue 2 AM | 21°F−6°C | 65% | 16.9°F−8.4°C | Ideal |
| Tue 3 AM | 22°F−6°C | 62% | 17.7°F−8.0°C | Ideal |
| Tue 4 AM | 22°F−6°C | 59% | 17.4°F−8.1°C | Ideal |
| Tue 5 AM | 22°F−6°C | 57% | 17.3°F−8.2°C | Ideal |
| Tue 6 AM | 22°F−6°C | 57% | 17.3°F−8.2°C | Ideal |
| Tue 7 AM | 22°F−6°C | 57% | 17.3°F−8.2°C | Ideal |
| Tue 8 AM | 22°F−6°C | 59% | 17.4°F−8.1°C | Ideal |
| Tue 9 AM | 22°F−6°C | 59% | 17.4°F−8.1°C | Ideal |
Right now at the base
- Wind
- 8 mph13 km/h
- Humidity
- 75%
- Precipitation
- 15% chance
Nearest station KCCU at 9:55 AM: Clear, 32°F0°C, 64% humidity (27°F−3°C wet-bulb).
Snow forecast new snow at the base, NOAA forecast
- Next 24 h
- 0.7″1.8 cm
- Next 48 h
- 0.7″1.8 cm
- Next 72 h
- 0.7″1.8 cm
Use the left and right arrow keys to step through 6-hour periods.
Snowfall table
| Period | New snow |
|---|---|
| Sun 10 AM – 4 PM | 0.1″0.2 cm |
| Sun 4 PM – 10 PM | 0.3″0.8 cm |
| Sun 10 PM – 4 AM | 0.3″0.7 cm |
| Mon 4 AM – 10 AM | 0.1″0.2 cm |
| Mon 10 AM – 4 PM | 0″0 cm |
| Mon 4 PM – 10 PM | 0″0 cm |
| Mon 10 PM – 4 AM | 0″0 cm |
| Tue 4 AM – 10 AM | 0″0 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 36°F2°C 23°F−5°C Chance Snow Showers ❄︎ <1″<3 cm
- Mon 32°F0°C 24°F−4°C Mostly Sunny
- Tue 35°F2°C 24°F−4°C Sunny
- Wed 38°F3°C 26°F−3°C Sunny
- Thu 39°F4°C 28°F−2°C Mostly Sunny
- Fri 38°F3°C 28°F−2°C Partly Sunny
- Sat 34°F1°C 26°F−3°C Chance Snow Showers ❄︎ 1–2″3–5 cm
Forecast for 10 AM · NOAA grid updated 12:46 AM
About this forecast
Arapahoe Basin is a ski resort in Colorado with a base at 10,520 ft and a summit at 13,050 ft, 2,530 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 Colorado
Base: NOAA's forecast for the base area (forecast grid elevation 11,880 ft). Summit: estimated from the base forecast with typical cooling by elevation; on calm, clear nights cold air can pool at the base instead.
Click a pin or anywhere on the map to check it.