Weather Forecast for Rocky Mountains – December 21, 2025 | Outdoor Radio Network

From the Outdoor Radio Network Weather Center, here’s your forecast for the Rocky Mountains.

Today, look for an average high near 55 degrees Fahrenheit—a chilly but lively afternoon is coming. Temperatures will cool to around 33 degrees overnight under a refreshing, nippy nightfall. Overcast and Windy conditions will prevail across the region, sweeping from towering ridges framing open valleys. The sun rises at 07:17 AM to kick off the day, setting at 04:38 PM to close things out. Expect some variation across the area—perhaps gusty winds or thicker clouds in spots—as is typical for the Rocky Mountains this time of year. This is the Outdoor Radio Network Weather Center, keeping you in the know—stay tuned for updates!

Issued by the Outdoor Radio Network Weather Center at 09:45 PM EST


City Forecasts

Denver

Gray Skies and Breezy

High: 64°F | Low: 29°F

Sunrise: 07:17 AM | Sunset: 04:38 PM

Salt Lake City

Overcast and Windy

High: 60°F | Low: 43°F

Sunrise: 07:48 AM | Sunset: 05:03 PM

Cheyenne

Overcast and Windy

High: 55°F | Low: 31°F

Sunrise: 07:21 AM | Sunset: 04:33 PM

Billings

Overcast

High: 39°F | Low: 27°F

Sunrise: 07:52 AM | Sunset: 04:32 PM

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