Notice of NWS' New Version of Forecast
A new version of Forecast is coming soon!
Click here to visit the new site for details.

Severe thunderstorms possible from the upper Midwest to the lower Mississippi Valley

Severe thunderstorms with damaging winds, a few tornadoes and some hail are expected across much of Arkansas and southern Missouri Wednesday. Isolated severe thunderstorms with damaging wind are also expected across Illinois during the day and across the lower Mississippi Valley overnight. Heavy rain with localized flooding is also possible in these areas. Read More >

Hazardous Weather Conditions

Current conditions at

Vance Brand Airport (KLMO)

Lat: 40.16°NLon: 105.16°WElev: 5039ft.

Overcast

49°F

9°C

Humidity 58%
Wind Speed NE 15 G 22 mph
Barometer 29.70 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 25 Apr 6:55 pm MDT
Extended Forecast for

Longmont CO

  • Tonight

    Tonight: A chance of rain showers, mixing with snow after 10pm, then gradually ending. Some thunder is also possible.  Mostly cloudy, with a low around 29. Blustery, with a north wind 16 to 21 mph becoming light west northwest  after midnight. Winds could gust as high as 31 mph.  Chance of precipitation is 50%. Little or no snow accumulation expected.

    Chance
    Rain/Snow and
    Blustery then
    Slight Chance
    Rain/Snow

    Low: 29 °F

  • Wednesday

    Wednesday: A 20 percent chance of showers after 3pm.  Mostly sunny, with a high near 60. Breezy, with a light and variable wind becoming west northwest 10 to 15 mph in the afternoon. Winds could gust as high as 23 mph.

    Mostly Sunny
    then Slight
    Chance
    Showers and
    Breezy

    High: 60 °F

  • Wednesday
    Night

    Wednesday Night: A 20 percent chance of showers.  Mostly cloudy, with a low around 39. West wind 5 to 10 mph becoming light southwest. Winds could gust as high as 15 mph.

    Slight Chance
    Showers

    Low: 39 °F

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm.  Mostly cloudy, with a high near 58. Northwest wind 5 to 14 mph, with gusts as high as 21 mph.  Chance of precipitation is 30%.

    Chance
    Showers

    High: 58 °F

  • Thursday
    Night

    Thursday Night: A 30 percent chance of showers and thunderstorms, mainly before 7pm.  Mostly cloudy, with a low around 33. Northwest wind 9 to 14 mph becoming light west northwest  after midnight. Winds could gust as high as 22 mph.

    Chance
    Showers then
    Slight Chance
    T-storms

    Low: 33 °F

  • Friday

    Friday: A slight chance of rain and snow showers between 7am and 1pm, then a chance of rain showers.  Partly sunny, with a high near 51. Chance of precipitation is 40%.

    Slight Chance
    Rain/Snow
    then Chance
    Rain/Snow

    High: 51 °F

  • Friday
    Night

    Friday Night: Rain showers likely before 1am, then rain and snow showers likely.  Cloudy, with a low around 32. Chance of precipitation is 70%.

    Showers
    Likely then
    Rain/Snow
    Likely

    Low: 32 °F

  • Saturday

    Saturday: Rain and snow showers likely, mainly before 7am.  Cloudy, with a high near 42.

    Rain/Snow
    Likely

    High: 42 °F

  • Saturday
    Night

    Saturday Night: A chance of rain and snow showers, mainly before 7pm.  Mostly cloudy, with a low around 28.

    Chance
    Rain/Snow

    Low: 28 °F

Detailed Forecast

Tonight
A chance of rain showers, mixing with snow after 10pm, then gradually ending. Some thunder is also possible. Mostly cloudy, with a low around 29. Blustery, with a north wind 16 to 21 mph becoming light west northwest after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Wednesday
A 20 percent chance of showers after 3pm. Mostly sunny, with a high near 60. Breezy, with a light and variable wind becoming west northwest 10 to 15 mph in the afternoon. Winds could gust as high as 23 mph.
Wednesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 39. West wind 5 to 10 mph becoming light southwest. Winds could gust as high as 15 mph.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 58. Northwest wind 5 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Thursday Night
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 33. Northwest wind 9 to 14 mph becoming light west northwest after midnight. Winds could gust as high as 22 mph.
Friday
A slight chance of rain and snow showers between 7am and 1pm, then a chance of rain showers. Partly sunny, with a high near 51. Chance of precipitation is 40%.
Friday Night
Rain showers likely before 1am, then rain and snow showers likely. Cloudy, with a low around 32. Chance of precipitation is 70%.
Saturday
Rain and snow showers likely, mainly before 7am. Cloudy, with a high near 42.
Saturday Night
A chance of rain and snow showers, mainly before 7pm. Mostly cloudy, with a low around 28.
Sunday
Mostly sunny, with a high near 55.
Sunday Night
Partly cloudy, with a low around 37.
Monday
Mostly sunny, with a high near 63.
Monday Night
Mostly cloudy, with a low around 40.
Tuesday
A chance of showers. Partly sunny, with a high near 59.
Click Map For Forecast
Point Forecast:
Longmont CO
 40.16°N 105.12°W (Elev. 5000 ft)
5:05 pm MDT Apr 25, 2017
7pm MDT Apr 25, 2017-6pm MDT May 2, 2017
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database