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Safety guides Use current official weather information for Longmont, Colorado 80504 before making weather-sensitive plans.
Live weatherCheck live radar before leavingUse radar with the forecast to see how precipitation is moving.
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Open→Weather status
No active NWS alerts found for Longmont, Colorado 80504
Conditions can change quickly. Keep Wireless Emergency Alerts enabled and continue to monitor official information.
Official NOAA / NWSWSR-88D DopplerUpdates every 5 minutes
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What’s next
Hourly forecast
Check the latest hourly conditions, seven-day outlook, rain timing, wind, sunrise and sunset for Longmont, Colorado 80504. Forecasts and alerts update from NOAA and the National Weather Service.
92°Slight Chance Showers And Thunderstorms24% rain91°Chance Showers And Thunderstorms37% rain88°Chance Showers And Thunderstorms31% rain
84°Slight Chance Showers And Thunderstorms23% rain81°Slight Chance Showers And Thunderstorms23% rain78°Slight Chance Showers And Thunderstorms23% rain
74°Slight Chance Rain Showers19% rain72°Slight Chance Rain Showers19% rainNext 24 hours
Rain Timeline
Scattered precipitation is possible. The highest official hourly chance is 37%; check the radar before heading out.
24%Thunderstorms
37%Thunderstorms
31%Thunderstorms
23%Thunderstorms
23%Thunderstorms
23%Thunderstorms
19%Rain
19%Rain
19%Rain
4%None
4%None
4%None
0%None
0%None
0%None
1%None
1%None
1%None
1%None
1%None
1%None
21%Thunderstorms
21%Thunderstorms
21%Thunderstorms
Official NWS outlook
7-Day Forecast
Today
94°62°
Chance Showers And Thunderstorms
- Precipitation
- 37%
- Wind
- ENE 8 mph
- Sunrise
- 6:20 AM
- Sunset
- 7:47 PM
Mon
93°59°
Mostly Sunny then Chance Showers And Thunderstorms
- Precipitation
- 31%
- Wind
- NE 2 to 8 mph
- Sunrise
- 6:21 AM
- Sunset
- 7:46 PM
Tue
88°58°
Mostly Sunny then Slight Chance Showers And Thunderstorms
- Precipitation
- 33%
- Wind
- N 1 to 8 mph
- Sunrise
- 6:22 AM
- Sunset
- 7:44 PM
Wed
86°58°
Mostly Sunny then Chance Showers And Thunderstorms
- Precipitation
- 27%
- Wind
- NE 1 to 6 mph
- Sunrise
- 6:23 AM
- Sunset
- 7:43 PM
Thu
90°58°
Mostly Sunny then Slight Chance Showers And Thunderstorms
- Precipitation
- 26%
- Wind
- NE 1 to 6 mph
- Sunrise
- 6:24 AM
- Sunset
- 7:41 PM
Fri
94°59°
Sunny then Slight Chance Showers And Thunderstorms
- Precipitation
- 24%
- Wind
- SSE 3 to 7 mph
- Sunrise
- 6:25 AM
- Sunset
- 7:40 PM
Sat
94°60°
Mostly Sunny then Slight Chance Showers And Thunderstorms
- Precipitation
- 20%
- Wind
- NNW 3 to 8 mph
- Sunrise
- 6:26 AM
- Sunset
- 7:38 PM
Forecasts, icons, precipitation, wind, and alerts are from the National Weather Service. Sunrise and sunset are calculated locally for the selected coordinates.
Weather for a healthier day
Healthy Weather
Real Feel94°F
Use caution walking outside
Consider a shorter outing, adjust clothing, and check radar and alerts first.
WindNE16 mph
Best walk timeBetter weather window: 2 AM–4 AM
Walking: 2% average rain chance, near 66°F, with winds near 5 mph.
Official EPA AirNowLocal air qualityLongmont, Colorado 80504View AQI +
More weather details
Wind gusts21mph
Rain now24%next hour
Humidity21%current
UV indexCheckingEPA forecast
Wind impact: Breezy — cycling, umbrellas, and loose outdoor items may be affected.
“Better weather window” is planning guidance based on official NWS data—not a promise of safe conditions. Review active alerts and radar before leaving.
Storm & DetailsGusts, pressure, visibility and official risk outlooksView details +
Wind gust21 mph
Pressure30.08 in
Visibility9.0 mi
Peak rain chance37%
Dew point48°F
Active alertsNone
Official risk outlooks
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