Longmont, CO 80503 Weather

Boulder County10:05 AM MDT40.16°N, 105.16°W

Current conditions

Mostly Sunny
62°
Mostly Sunny
Feels like 62°
High 76°·Low 48°
WindSE 1 mph
Humidity50%
Dew point43°
Visibility10 mi
Cloud cover39%
UV index2 Low
Sunrise7:18 AM
Sunset6:14 PM

Forecast for this hour (no station report in the last two hours)

Forecast

10-day

  • Today

    Mostly sunny. High near 76, with temperatures falling to around 74 in the afternoon. Southeast wind 1 to 6 mph.

  • Tonight

    Mostly cloudy. Low around 48, with temperatures rising to around 50 overnight. North northwest wind around 5 mph.

  • Thursday

    Mostly cloudy. High near 74, with temperatures falling to around 72 in the afternoon. East northeast wind 1 to 5 mph.

National Weather Service forecast updated 9 hrs ago.

Hourly

Hourly forecast
  1. Now Mostly Sunny 62°
  2. 11 AM Mostly Sunny 66°
  3. 12 PM Mostly Sunny 70°
  4. 1 PM Mostly Sunny 74°
  5. 2 PM Mostly Sunny 74°
  6. 3 PM Mostly Sunny 76°
  7. 4 PM Partly Sunny 76°
  8. 5 PM Partly Sunny 74°
  9. 6 PM Mostly Cloudy 72°
  10. 7 PM Mostly Cloudy 68°
  11. 8 PM Mostly Cloudy 62°
  12. 9 PM Mostly Cloudy 60°
  13. 10 PM Mostly Cloudy 59°
  14. 11 PM Mostly Cloudy 57°
  15. Thu12 AM Mostly Cloudy 55°
  16. 1 AM Mostly Cloudy 54°
  17. 2 AM Mostly Cloudy 53°
  18. 3 AM Mostly Cloudy 52°
  19. 4 AM Mostly Cloudy 50°
  20. 5 AM Mostly Cloudy 50°
  21. 6 AM Mostly Cloudy 49°
  22. 7 AM Mostly Cloudy 48°
  23. 8 AM Mostly Cloudy 50°
  24. 9 AM Mostly Cloudy 55°

10-day forecast

Details
  1. TodayOct 21 Mostly Sunny Mostly Sunny48°76°
  2. ThuOct 22 Mostly Cloudy Mostly Cloudy16%51°74°
  3. FriOct 23 Mostly Sunny Mostly Sunny21%43°78°
  4. SatOct 24 Chance Rain Showers Chance Rain Showers54%36°55°
  5. SunOct 25 Slight Chance Rain Showers then Partly Sunny Slight Chance Rain Showers then Partly Sunny21%35°55°
  6. MonOct 26 Slight Chance Rain Showers then Mostly Sunny Slight Chance Rain Showers then Mostly Sunny17%35°55°
  7. TueOct 27 Mostly Sunny Mostly Sunny35°60°
  8. WedOct 28 Light showers Light showers0.02 in36°63°
  9. ThuOct 29 Mostly sunny Mostly sunny32°51°
  10. FriOct 30 Mostly sunny Mostly sunny30°58°

Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.

Radar

Full map
Open the National Weather Service radar (the map here needs JavaScript).

Weather news near Longmont

More weather news

Air quality

84
Moderate
Coarse particles (PM10)

Acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Forecast

  • WedModerate
  • ThuModerate

Denver-Boulder, CO reporting area · 2 hrs ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.

Sun & moon

Sunrise 7:18 AM
Sunset 6:14 PM
Daylight 10 h 55 min (−2 min 30 s tomorrow)
Waxing Gibbous · 78% lit
Moonrise 3:54 PM Moonset 2:23 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low64° / 31°
Record high85° (1921)
Record low16° (1990)
Wettest0.36 in (1945)
Yesterday66° / 40°
Month to date0.77 in (normal 0.68 in)

Longmont 2 Ese, records since 1893. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

From the National Weather Service office in BOU, issued 4 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, unsettled weather potentially returns this weekend across the forecast area, including the Front Range/I-25 corridor.

- At least a brief warm-up likely sometime early or mid-week 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 4Conservative index and reflects what the press published. Terms of use.