National Weather Service United States Department of Commerce

Winter storm to bring heavy snow from the Plains to New England through Monday

A storm system in the central U.S. will push east setting the stage for a widespread precipitation event across the central and eastern U.S. through Monday. A wide swath of accumulating snow is forecast from Nebraska to New England. Just to the south of this area of snow, freezing rain is possible. Gusty winds and blowing snow could lead to blizzard conditions for parts of the Midwest.
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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

Tonight

Mostly Cloudy

Mostly
Cloudy

Low: 18 °FRising Temperatures

Monday

Mostly Sunny

Mostly
Sunny

High: 54 °F

Monday
Night

Partly Cloudy

Partly
Cloudy

Low: 30 °F

Tuesday

Mostly Sunny

Mostly
Sunny

High: 61 °F

Tuesday
Night

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

Low: 27 °F

Wednesday

Chance Snow Chance for Measurable Precipitation 40%

Chance
Snow

High: 39 °F

Wednesday
Night

Chance Snow Chance for Measurable Precipitation 30%

Chance
Snow

Low: 18 °F

Thursday

Mostly Sunny

Mostly
Sunny

High: 51 °F

Thursday
Night

Partly Cloudy

Partly
Cloudy

Low: 31 °F

Detailed Forecast

  • Tonight Mostly cloudy, with a temperature rising to around 21 by 5am. South southeast wind around 5 mph becoming calm in the evening.
  • Monday Mostly sunny, with a high near 54. West wind 5 to 8 mph.
  • Monday Night Partly cloudy, with a low around 30. South southwest wind 5 to 7 mph.
  • Tuesday Mostly sunny, with a high near 61. West southwest wind 5 to 10 mph becoming light and variable in the afternoon. Winds could gust as high as 16 mph.
  • Tuesday Night A 20 percent chance of snow after 11pm. Mostly cloudy, with a low around 27. South wind 3 to 7 mph.
  • Wednesday A 40 percent chance of snow. Mostly cloudy, with a high near 39.
  • Wednesday Night A 30 percent chance of snow before 11pm. Partly cloudy, with a low around 18.
  • Thursday Mostly sunny, with a high near 51.
  • Thursday Night Partly cloudy, with a low around 31.
  • Friday Mostly sunny, with a high near 62.
  • Friday Night Partly cloudy, with a low around 37.
  • Saturday Mostly sunny, with a high near 63.
  • Saturday Night Partly cloudy, with a low around 35.
  • Sunday Partly sunny, with a high near 61.