What is today's weather forecast for Jefferson County, CO?

Today's forecast for Jefferson County shows a low of 41 degrees Fahrenheit. Mostly cloudy, with a low around 41.

What is the 7-day weather forecast for Jefferson County, CO?

The 7-day forecast for Jefferson County shows highs from 44 to 64 degrees and lows from 27 to 41 degrees Fahrenheit. Expect precipitation on 6 days with chances of 20% or higher.

Will it rain in Jefferson County, CO this week?

Yes, rain is possible in Jefferson County this week. Precipitation chances: Sunday (50% chance), Monday (20% chance), Tuesday (50% chance), Wednesday (50% chance), Thursday (50% chance), Friday (50% chance).

How accurate is the Jefferson County weather forecast?

WeatherForYou provides highly accurate Jefferson County forecasts using National Weather Service data and current conditions from the nearest available weather stations, often miles closer than regional airports, for the most precise local forecasts.

Jefferson County, CO Weather Forecast and Current Conditions

WEATHER ALERTS - Hazardous Weather Outlook

Current Conditions From Nearby Local Station

Switch to Metric Units

48°F
Feels Like 48°F

Humidity 29% Dew Point 17°F Wind Calm Barometer 29.84 in.757.9 mm

Report from a personal weather station 0.2 miles S of central Jefferson County
at 6:25 PM Fri, Nov 14, 2025

Point Forecast at a Glance

FriNov 14

SatNov 15

SunNov 16

MonNov 17

20%

TueNov 18

WedNov 19

50%

ThuNov 20

50%

7-Day Temperature Trend

Week Ahead Summary

Cooling trend continues with high temperatures dropping from 64°F to 46°F. Unsettled weather expected with wintry mix likely on at least 5 days.

Climate Context

This week's forecast shows temperatures running 2°F above the historical average for November. Normal highs for this period are around 50°F with lows around 24°F.

This Date in Weather History

1964 - With the help of a fresh three inch cover of snow, the temperature at Ely, NV, dipped to 15 degrees below zero to establish an all-time record low for the month of November. That record of -15 degrees was later equalled on the 19th of November in 1985.

Jefferson County, CO 7 Day Weather Forecast Details

Friday Nov 14

Night: Mostly cloudy, with a low around 41. West southwest wind 6 to 11 mph, with gusts as high as 18 mph.

Saturday Nov 15

Day: Partly sunny, with a high near 64. West southwest wind 5 to 10 mph becoming east in the afternoon. Winds could gust as high as 16 mph.

Night: Partly cloudy, with a low around 37. Light west wind.

Sunday Nov 16

Day: Sunny, with a high near 61. West southwest wind 5 to 7 mph becoming east in the afternoon. Winds could gust as high as 18 mph.

Night: A chance of rain showers before 2am, then a chance of rain and snow showers. Mostly cloudy, with a low around 34. West wind around 6 mph, with gusts as high as 16 mph. Chance of precipitation is 50%.

Monday Nov 17

Day: A slight chance of rain and snow showers before 11am. Mostly sunny, with a high near 51. Chance of precipitation is 20%.

Night: Partly cloudy, with a low around 30.

Tuesday Nov 18

Day: Partly sunny, with a high near 50.

Night: A slight chance of rain and snow showers after 11pm. Partly cloudy, with a low around 30.

Wednesday Nov 19

Day: A chance of rain and snow showers, mainly after 11am. Partly sunny, with a high near 49.

Night: A chance of rain and snow showers. Partly cloudy, with a low around 28.

Thursday Nov 20

Day: A slight chance of rain and snow showers. Mostly sunny, with a high near 46.

Night: A slight chance of rain and snow showers. Partly cloudy, with a low around 27.

Friday Nov 21

Day: A slight chance of snow showers. Mostly sunny, with a high near 44.

About Jefferson County, CO

Jefferson County is a county located in the U.S. state of Colorado. As of the 2020 census, the population was 582,910, making it the fourth-most populous county in Colorado. The county seat is Golden, which was Colorado's capital twice, and its most populous city is Lakewood. Jefferson County is included in the Denver-Aurora-Lakewood, CO Metropolitan Statistical Area. Located along the Front Range of the Rocky Mountains, Jefferson County is adjacent to the state capital of Denver. In 2010, the center of population of Colorado was located in Jefferson County. The county's slogan is the "Gateway to the Rocky Mountains", and it is commonly nicknamed Jeffco. The name Jeffco is incorporated in the name of the Jeffco School District, the Jeffco Business Center Metropolitan District No. 1, and several businesses located in Jefferson County. Jeffco is also incorporated in the unofficial monikers of many Jefferson County agencies. The Rocky Mountain Metropolitan Airport operated by Jefferson County was previously known as the Jeffco Airport. A major employer in Jefferson County is the large Coors Brewing Company in Golden. Also, the state-supported Colorado School of Mines, a university specializing in mining, geology, chemistry, and engineering is located in Jefferson County.

Content from Wikipedia, licensed under CC BY-SA 3.0.

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