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Longmont, CO 80501 Weather
Current conditions
Observed at Vance Brand Airport · 1 hr ago
Forecast
10-day-
Tonight
Mostly cloudy. Low around 50, with temperatures rising to around 52 overnight. North northwest wind around 3 mph.
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Thursday
A chance of rain showers after noon. Mostly cloudy. High near 75, with temperatures falling to around 73 in the afternoon. North northeast wind 1 to 5 mph. Chance of precipitation is 30%.
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Thursday Night
A slight chance of rain showers before midnight. Mostly cloudy, with a low around 52. West wind around 3 mph. Chance of precipitation is 20%.
National Weather Service forecast updated 8 hrs ago.
Hourly
Hourly forecast- Now65°
- 9 PM62°10%
- 10 PM60°10%
- 11 PM58°10%
- Thu12 AM56°
- 1 AM56°
- 2 AM54°
- 3 AM53°
- 4 AM52°
- 5 AM52°
- 6 AM51°
- 7 AM50°
- 8 AM51°
- 9 AM56°12%
- 10 AM61°12%
- 11 AM65°12%
- 12 PM68°20%
- 1 PM71°20%
- 2 PM73°20%
- 3 PM73°27%
- 4 PM74°27%
- 5 PM73°27%
- 6 PM71°18%
- 7 PM69°18%
10-day forecast
Details- TodayOct 21Partly Sunny10%50°75°
- ThuOct 22Mostly Cloudy then Chance Rain Showers27%52°75°
- FriOct 23Mostly Sunny46°80°
- SatOct 24Partly Sunny then Chance Rain Showers72%41°57°
- SunOct 25Chance Rain Showers37%39°55°
- MonOct 26Slight Chance Rain Showers then Partly Sunny18%36°57°
- TueOct 27Mostly Sunny37°62°
- WedOct 28Partly cloudy37°65°
- ThuOct 29Cloudy40°54°
- FriOct 30Partly cloudy37°61°
Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.
Radar
Full mapWeather news near Longmont
More weather news-
Dangerous Freeze Watch Warning Issued for Massive Area of Nebraska, Wyoming and ColoradoA Freeze Watch is in effect from late Thursday night through Friday morning for the Denver metro area, Colorado’s eastern plains, southeast and central Wyoming, and the Nebraska Panhandle, with lows in the 20s possible…
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Bright sun glare prompts I-70 closures in Colorado's mountains, from sunrise to mid-morningOctober 21, 2026 / 9:43 AM MDT / CBS Colorado As the days get shorter with winter approaching, drivers in Colorado traveling on I-70 will start running into a new issue: sun glare while they are driving. The Colorado…
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Southwest Colorado braces for heavy rain while dry and warm weather continue for DenverCBS News Southwest Colorado braces for heavy rain while dry and warm weather continue for Denver I-25 expansion project in Northern Colorado nears completion Ugandan priest released from ICE custody after more than a…
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Warm temps to mean inches of rain instead of 26″ of snow in ColoradoDenver Gazette Significant rainfall is expected in Colorado over upcoming hours, likely to result in debris flows and flash flooding in the southwest region of the state. Per a report from the National Weather Service…
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More clouds for Front Range with flooding rains heading to southwest ColoradoCBS News More clouds for Front Range with flooding rains heading to southwest Colorado MS misdiagnoses raise concerns, Colorado doctors warn of unnecessary treatment risks College bound Coloradans get ready for state…
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Heavy rain could bring flash flooding to New Mexico, southwest Colorado through FridayKRQE A strong storm system will bring widespread rain to New Mexico and southwest Colorado starting Wednesday, with several inches of rain possible in some areas through Friday Heavy rainfall could lead to flash…
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5 El Niño myths, busted. Here's what the 'Godzilla' El Niño could really mean for ColoradoSnow on Star Dune and Crestone Peaks in Great Sand Dunes National Park and Preserve. As a record-breaking El Niño continues to strengthen in the Pacific Ocean, the world is entering uncharted territory. As El Niño…
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A warm week is on tap for southern Colorado with mountain shower chancesKOAA News 5 Tonight's Forecast:Overnight lows continue to stay mild in the 40s for most Not much cloud cover is expected into the overnight while southern Colorado stays dry.Colorado Springs forecast: Low: 46; High…
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Heavy rain and flash flooding possible in New Mexico, southwest Colorado this weekKRQE A strong storm system will bring widespread rain to New Mexico and southwest Colorado Wednesday through Friday Heavy rainfall could lead to flash flooding, especially Thursday and Friday Several inches of rain are…
Air quality
Acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.
Forecast
- WedModerate
- ThuModerate
Denver-Boulder, CO reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.
Sun & moon
Almanac
MonthlyLongmont 2 Ese, records since 1893. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).
Nearby
- Denver 50 km
- Aurora 55 km
- Fort Collins 45 km
- Lakewood 53 km
- Thornton 36 km
- Westminster 38 km
- Arvada 42 km
- Greeley 43 km
- Boulder 23 km
- Loveland 25 km
- Broomfield 29 km
- Commerce City 43 km
Forecasters' discussion
From the National Weather Service office in BOU, issued 3 hrs ago
Key Messages
- Warm and dry conditions continue across the lower elevations for the next few days, with scattered light rain and snow showers across the higher elevations.
- Cooler, more unsettled weather returns this weekend across the forecast area.
- At least a brief warm-up likely sometime early next week.
Bou Watches
None.
Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Search index and reflects what the press published. Terms of use.