Heavy rain expected across the Mid-Atlantic region and central Appalachians.

Heavy rainfall is possible over portions of the eastern United States today, with the highest risk across the Mid-Atlantic and central Appalachians. Click the "Read More" link for excessive rainfall forecasts from the Weather Prediction Center. Afternoon showers and thunderstorms are possible over portions of the Southwest and southern Rockies through Friday. Read More >

Hazardous Weather Conditions

Current conditions at

Vance Brand Airport (KLMO)

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

Fair

63°F

17°C

Humidity 46%
Wind Speed SE 3 mph
Barometer 30.37 in
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Last update 29 Sep 9:33 am MDT
Extended Forecast for

Longmont CO

  • Today

    Today: Mostly sunny, with a high near 82. Calm wind becoming east around 5 mph in the afternoon.

    Mostly Sunny

    High: 82 °F

  • Tonight

    Tonight: Mostly cloudy, with a low around 50. West wind around 5 mph becoming calm  in the evening.

    Mostly Cloudy

    Low: 50 °F

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after noon.  Mostly cloudy, with a high near 75. Calm wind becoming south 5 to 8 mph in the afternoon.

    Mostly Cloudy
    then Slight
    Chance
    T-storms

    High: 75 °F

  • Friday
    Night

    Friday Night: A 20 percent chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 50. West wind around 5 mph becoming calm  in the evening.

    Slight Chance
    T-storms then
    Mostly Cloudy

    Low: 50 °F

  • Saturday

    Saturday: A 10 percent chance of showers and thunderstorms after noon.  Partly sunny, with a high near 78. Calm wind.

    Partly Sunny
    then Slight
    Chance
    T-storms

    High: 78 °F

  • Saturday
    Night

    Saturday Night: A 10 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 50.

    Slight Chance
    T-storms then
    Partly Cloudy

    Low: 50 °F

  • Sunday

    Sunday: Sunny, with a high near 78.

    Sunny

    High: 78 °F

  • Sunday
    Night

    Sunday Night: A slight chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 49.

    Slight Chance
    T-storms then
    Partly Cloudy

    Low: 49 °F

  • Monday

    Monday: Mostly sunny, with a high near 75.

    Mostly Sunny

    High: 75 °F

Detailed Forecast

Today
Mostly sunny, with a high near 82. Calm wind becoming east around 5 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 50. West wind around 5 mph becoming calm in the evening.
Friday
A 20 percent chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 75. Calm wind becoming south 5 to 8 mph in the afternoon.
Friday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 50. West wind around 5 mph becoming calm in the evening.
Saturday
A 10 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 78. Calm wind.
Saturday Night
A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 50.
Sunday
Sunny, with a high near 78.
Sunday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 49.
Monday
Mostly sunny, with a high near 75.
Monday Night
A slight chance of showers after midnight. Partly cloudy, with a low around 45.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 66.
Tuesday Night
A slight chance of showers. Mostly cloudy, with a low around 40.
Wednesday
Mostly sunny, with a high near 64.
Click Map For Forecast
Point Forecast:
Longmont CO
 40.16°N 105.09°W (Elev. 4980 ft)
8:22 am MDT Sep 29, 2016
9am MDT Sep 29, 2016-6pm MDT Oct 5, 2016
 
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