National Weather Service United States Department of Commerce

Wet weather in store for Pacific Northwest, Northeast

An active weather pattern in the Pacific Northwest will bring moderate to heavy rainfall across the region through midweek. Meanwhile, a developing nor'easter off the Atlantic coast will bring several inches of rain by Thursday morning across parts of the Northeast and 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

Today

Slight Chance Thunderstorms Chance for Measurable Precipitation 10%

Slight Chc
Thunderstorms

High: 77 °F

Tonight

Chance Showers Chance for Measurable Precipitation 30%

Chance
Showers

Low: 47 °F

Wednesday

Slight Chance Thunderstorms Chance for Measurable Precipitation 10%

Slight Chc
Thunderstorms

High: 69 °F

Wednesday
Night

Slight Chance Thunderstorms Chance for Measurable Precipitation 10%

Slight Chc
Thunderstorms

Low: 37 °F

Thursday

Sunny

Sunny

High: 76 °F

Thursday
Night

Mostly Clear

Mostly
Clear

Low: 40 °F

Friday

Sunny

Sunny

High: 77 °F

Friday
Night

Clear

Clear

Low: 40 °F

Saturday

Sunny

Sunny

High: 78 °F

Detailed Forecast

  • Today A 10 percent chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 77. Calm wind becoming south southeast 5 to 7 mph in the afternoon.
  • Tonight A chance of showers and thunderstorms. Mostly cloudy, with a low around 47. West wind 6 to 10 mph. Chance of precipitation is 30%.
  • Wednesday A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 69. Light and variable wind becoming south 5 to 8 mph in the afternoon. Chance of precipitation is 10%.
  • Wednesday Night A 10 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 37. South southeast wind around 6 mph becoming west after midnight.
  • Thursday Sunny, with a high near 76. South southwest wind 3 to 5 mph.
  • Thursday Night Mostly clear, with a low around 40.
  • Friday Sunny, with a high near 77.
  • Friday Night Clear, with a low around 40.
  • Saturday Sunny, with a high near 78.
  • Saturday Night Mostly clear, with a low around 41.
  • Sunday Mostly sunny, with a high near 70.
  • Sunday Night A slight chance of rain and snow showers. Mostly cloudy, with a low around 35.
  • Monday A slight chance of rain and snow showers. Mostly sunny, with a high near 59.