Weather in Jefferson, CO
Updated 2026-09-26 08:00 local time · ZIP codes 80456
Sunny
No government weather alerts were returned for this location at the latest update.
Next hours
42°7% rain47°3% rain52°1% rain56°1% rain59°1% rain61°1% rain
62°2% rain
63°6% rain63°7% rain
62°9% rain60°8% rain
54°10% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Key weather changes ahead
Weather insights for today
Rain chance stays relatively low over the next 12 hours (up to 10%).
It feels like 41°F with winds near 4 mph.
62°F, 2% rain chance and 2 mph wind.
Visibility is around 6 mi; gusts may reach 9 mph.
Current temperature is 42°F, wind 4 mph, rain chance up to 10%.
UV index is 0.
Local weather characteristics in Jefferson
Colorado weather changes quickly with elevation. The eastern plains, Front Range and high mountains can have very different temperatures, wind, snow and thunderstorm conditions on the same day.
Jefferson is part of the West weather region. The forecast point is near 39.38°N latitude and 105.80°W longitude. Local temperature, wind and precipitation can still differ from nearby places, especially where terrain, coastlines or urban development create small-scale weather changes.
Jefferson weather today
Sunny and 42°F in Jefferson, CO. Today's high is 63°F with a 4% rain chance. Winds are around 4 mph with gusts near 4 mph. Relative humidity is 71%, pressure is 30.18 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Jefferson
Sunrise is at 06:54 AM and sunset is at 06:54 PM. Tomorrow's forecast calls for Overcast with a high near 63°F and a low near 42°F. The maximum rain chance is 17%.