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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 Cloudy

Mostly
Cloudy

Low: 48 °F

Monday

Patchy Fog

Patchy
Fog

High: 69 °F

Monday
Night

Partly Cloudy

Partly
Cloudy

Low: 48 °F

Tuesday

Sunny

Sunny

High: 82 °F

Tuesday
Night

Mostly Clear

Mostly
Clear

Low: 51 °F

Wednesday

Sunny

Sunny

High: 85 °F

Wednesday
Night

Mostly Clear

Mostly
Clear

Low: 53 °F

Thursday

Sunny

Sunny

High: 87 °F

Thursday
Night

Partly Cloudy

Partly
Cloudy

Low: 57 °F

Detailed Forecast

  • Overnight Mostly cloudy, with a low around 48. North wind 6 to 9 mph.
  • Monday Patchy fog between 7am and 1pm. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 69. Calm wind becoming southeast 5 to 9 mph in the afternoon.
  • Monday Night Partly cloudy, with a low around 48. Southeast wind 5 to 7 mph becoming light and variable.
  • Tuesday Sunny, with a high near 82. West northwest wind around 6 mph becoming north northeast in the afternoon.
  • Tuesday Night Mostly clear, with a low around 51. North northeast wind around 7 mph becoming west after midnight.
  • Wednesday Sunny, with a high near 85.
  • Wednesday Night Mostly clear, with a low around 53.
  • Thursday Sunny, with a high near 87.
  • Thursday Night Partly cloudy, with a low around 57.
  • Friday A slight chance of showers and thunderstorms. Partly sunny, with a high near 78.
  • Friday Night A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 49.
  • Saturday A slight chance of showers. Mostly sunny, with a high near 72.
  • Saturday Night Partly cloudy, with a low around 49.
  • Sunday A slight chance of showers. Mostly sunny, with a high near 73.