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By Sam Collentine, Meteorologist Updated 4 months ago September 29, 2025
NEW: Snowmaking (Wet Bulb Temp) Forecast

The best measure of snowmaking conditions is something called the wet-bulb temperature. This is the combination of the actual air temperature and the amount of moisture in the air.
You can now view the snowmaking (wet bulb temp) forecast in OpenSnow using our multi-model, forecast range charts for any ski resort location, worldwide.
The snowmaking forecast range chart offers a behind-the-scenes look at the forecast, allowing you to see whether the forecast models are in tight agreement or if there is a wide range of potential outcomes over the next 15 days.
Free Preview: This feature will move to a new "Premium" subscription plan later in 2025.
Wet-Bulb Temp Guide for Snowmaking
Optimal (Purple): 10-20°F
Favorable (Blue): 2-10°F & 20-25°F
Marginal (Orange): 25-28°F
Unfavorable (Red): > 28°F
Cold (White): < 2°F
Example
32°F Temperature + 25% humidity = 24°F Wet-Bulb Temperature
This is well below freezing and plenty cold enough for efficient snowmaking.
Learn More → Snowmaking, Explained
Getting Started
- Go to any ski resort location.
- Scroll down to "Forecast Range".
- Swipe the chip to "Snowmaking (Wet Bulb Temp)".
- Tap "View Interactive Chart" in the app.
- Adjust the model and timeframe.

View → Snowmaking Example
Questions? Send an email to [email protected] and we'll respond within 24 hours. You can also visit our Support Center to view more frequently asked questions and feature guides.
Sam Collentine
About The Author



