National Weather Service United States Department of Commerce

Unsettled weather in store for eastern U.S. into weekend

A complex weather system moving across the eastern U.S. will bring a variety of hazardous weather to the region into the weekend. Much colder weather is expected by Saturday, along with numerous showers and accumulating snow in the higher elevations of the Appalachians. Rain and snow will move into northern New England on Sunday.
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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

Overnight

Mostly Clear

Mostly
Clear

Low: 36 °F

Saturday

Mostly Sunny

Mostly
Sunny

High: 72 °F

Saturday
Night

Partly Cloudy

Partly
Cloudy

Low: 38 °F

Sunday

Slight Chance Showers Chance for Measurable Precipitation 20%

Slight Chc
Showers

High: 65 °F

Sunday
Night

Chance Rain/Snow Chance for Measurable Precipitation 40%

Chance
Rain/Snow

Low: 34 °F

Monday

Chance Rain/Snow Chance for Measurable Precipitation 50%

Chance
Rain/Snow

High: 47 °F

Monday
Night

Chance Rain/Snow Chance for Measurable Precipitation 50%

Chance
Rain/Snow

Low: 26 °F

Tuesday

Sunny

Sunny

High: 55 °F

Tuesday
Night

Mostly Clear

Mostly
Clear

Low: 30 °F

Detailed Forecast

  • Overnight Mostly clear, with a low around 36. East wind around 6 mph.
  • Saturday Mostly sunny, with a high near 72. East wind 5 to 9 mph.
  • Saturday Night Partly cloudy, with a low around 38. Northeast wind around 6 mph becoming southwest after midnight.
  • Sunday A 20 percent chance of showers after 1pm. Partly sunny, with a high near 65. West wind around 6 mph becoming south in the afternoon.
  • Sunday Night A slight chance of rain showers before 1am, then a chance of rain and snow showers. Mostly cloudy, with a low around 34. West northwest wind 3 to 8 mph. Chance of precipitation is 40%.
  • Monday A chance of rain and snow showers before 7am, then a chance of rain showers. Mostly cloudy, with a high near 47. Chance of precipitation is 50%.
  • Monday Night A chance of rain showers before 7pm, then a slight chance of snow showers between 7pm and 1am. Partly cloudy, with a low around 26. Chance of precipitation is 50%.
  • Tuesday Sunny, with a high near 55.
  • Tuesday Night Mostly clear, with a low around 30.
  • Wednesday Sunny, with a high near 63.
  • Wednesday Night Mostly clear, with a low around 33.
  • Thursday Sunny, with a high near 65.
  • Thursday Night Mostly clear, with a low around 37.
  • Friday Mostly sunny, with a high near 65.