National Weather Service United States Department of Commerce

Active weather pattern Sunday brings threat of wintry weather to several parts of U.S

A few areas of active weather are expected on Sunday. The first will be in the Southwest, where locally heavy rain and mountain snow are possible from California to the Rockies. Farther east, wintry weather is possible over a large portion of the country. Numerous Winter Weather Advisories and a few Winter Storm Warnings are in effect from the southern Plains to New England.
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Hazardous Weather Conditions

Current Conditions

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Longmont CO

7 Day Forecast

For More Weather Information:

Denver-Boulder, CO Local Forecast Office

This
Afternoon

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

High: 26 °F

Tonight

Chance Snow Chance for Measurable Precipitation 30%

Chance
Snow

Low: 14 °F

Monday

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

High: 34 °F

Monday
Night

Snow Likely Chance for Measurable Precipitation 70%

Snow
Likely

Low: 19 °F

Tuesday

Snow Chance for Measurable Precipitation 80%

Snow

High: 21 °F

Tuesday
Night

Snow Likely Chance for Measurable Precipitation 60%

Snow
Likely

Low: -2 °F

Wednesday

Slight Chance Snow Chance for Measurable Precipitation 10%

Slight Chc
Snow

High: 17 °F

Wednesday
Night

Mostly Clear

Mostly
Clear

Low: 1 °F

Thursday

Sunny

Sunny

High: 34 °F

Detailed Forecast

  • This Afternoon A 20 percent chance of snow. Cloudy, with a high near 26. East southeast wind 3 to 5 mph.
  • Tonight A 30 percent chance of snow, mainly after 3am. Cloudy, with a low around 14. South southeast wind around 5 mph becoming north northeast after midnight. New snow accumulation of less than a half inch possible.
  • Monday A 20 percent chance of snow. Mostly cloudy, with a high near 34. North wind around 6 mph.
  • Monday Night Snow likely, mainly after 11pm. Cloudy, with a low around 19. Blustery, with a west wind 6 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
  • Tuesday Snow. High near 21. Northeast wind 8 to 11 mph. Chance of precipitation is 80%.
  • Tuesday Night Snow likely, mainly before 11pm. Cloudy, with a low around -2. Chance of precipitation is 60%.
  • Wednesday A 10 percent chance of snow. Partly sunny, with a high near 17.
  • Wednesday Night Mostly clear, with a low around 1.
  • Thursday Sunny, with a high near 34.
  • Thursday Night Mostly clear, with a low around 17.
  • Friday Sunny, with a high near 43.
  • Friday Night Partly cloudy, with a low around 21.
  • Saturday A slight chance of snow. Mostly sunny, with a high near 41.