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Municipality of Longmont, COLongmont, CO 7-Day Night Weather Forecast
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Longmont, CO Weather Forecast
Longmont, CO Weather Forecast Date: 1249 PM MDT Fri Oct 16 2026
The area/counties/county of: Larimer County Below 6000 Feet/Northwest Weld County, including: Fort Collins, Hereford, Loveland, Nunn, Arvada, Boulder, Golden, Lakewood, Longmont, Aurora, Brighton, City Of Denver, Denver International Airport, Highlands Ranch, Littleton, and Parker.or toggle through each period.
Rest of Today... Sunny. Highs 54 to 60.
Tonight... Clear. Lows 29 to 39.
Saturday... Sunny, warmer. Highs in the 70s.
Saturday Night... Clear. Lows 40 to 46.
Sunday... Mostly sunny. Highs in the lower to mid 70s.
Sunday Night... Mostly cloudy. Lows 41 to 47.
Monday... Mostly clear. Highs 68 to 76. Lows 41 to 50.
Tuesday... Mostly clear. Highs 68 to 76. Lows 41 to 50.
Wednesday... Mostly clear. Highs 68 to 76. Lows 41 to 50.
Wednesday Night... Partly cloudy. Lows 47 to 53. Highs 71 to 77.
Thursday... Partly cloudy. Lows 47 to 53. Highs 71 to 77.
Thursday Night... Mostly cloudy with a 20% chance of showers. Lows 47 to 53.
POP = Probability of Precipitation
Longmont Radar Loop
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