National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Rainfall in the Southern Plains and Mississippi Valley; Thunderstorms in Eastern Colorado on Thursday

A multiple day heavy rainfall event will begin to set up from the Southern Plains into the Mississippi Valley Thursday, peaking in intensity over the holiday weekend. Widely scattered thunderstorms are expected to develop across eastern Colorado Thursday afternoon and evening. Large hail will be the primary hazard. Read More >

Current conditions at

Granby-Grand County Airport (KGNB)

Lat: 40.09°NLon: 105.92°WElev: 8207ft.

Fair

29°F

-2°C

Humidity 95%
Wind Speed SE 5 mph
Barometer 30.18 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 21 May 4:35 am MDT
Extended Forecast for

Fraser CO

  • Today

    Today: A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 56. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 56 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tonight

    Tonight: Rain and snow showers likely, becoming all snow after midnight. Some thunder is also possible. Mostly cloudy, with a low around 29. West wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 15 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Rain/Snow
    Likely then
    Snow Showers
    Likely

  • Friday

    Friday: Mostly sunny, with a high near 55. West northwest wind 3 to 7 mph.

    High: 55 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of rain showers before midnight, then a chance of rain and snow showers between midnight and 3am, then a chance of snow showers after 3am. Some thunder is also possible. Mostly cloudy, with a low around 31. Light and variable wind. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 31 °F

    Chance
    Showers then
    Chance
    Rain/Snow

  • Saturday

    Saturday: A slight chance of snow showers before 9am, then a slight chance of rain and snow showers between 9am and noon, then a chance of rain showers after noon. Some thunder is also possible. Mostly sunny, with a high near 58. Calm wind becoming west northwest 5 to 9 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 40%.

    High: 58 °F

    Slight Chance
    Rain/Snow
    then Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 33.

    Low: 33 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms before midnight. Mostly clear, with a low around 37.

    Low: 37 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Memorial Day

    Memorial Day: A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 71.

    High: 71 °F

    Sunny then
    Chance
    T-storms

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 56. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 18 mph.
Tonight
Rain and snow showers likely, becoming all snow after midnight. Some thunder is also possible. Mostly cloudy, with a low around 29. West wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 15 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Friday
Mostly sunny, with a high near 55. West northwest wind 3 to 7 mph.
Friday Night
A chance of rain showers before midnight, then a chance of rain and snow showers between midnight and 3am, then a chance of snow showers after 3am. Some thunder is also possible. Mostly cloudy, with a low around 31. Light and variable wind. Chance of precipitation is 30%. Little or no snow accumulation expected.
Saturday
A slight chance of snow showers before 9am, then a slight chance of rain and snow showers between 9am and noon, then a chance of rain showers after noon. Some thunder is also possible. Mostly sunny, with a high near 58. Calm wind becoming west northwest 5 to 9 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 40%.
Saturday Night
Mostly clear, with a low around 33.
Sunday
Sunny, with a high near 68.
Sunday Night
A slight chance of showers and thunderstorms before midnight. Mostly clear, with a low around 37.
Memorial Day
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 71.
Monday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 38.
Tuesday
Showers and possibly a thunderstorm. Partly sunny, with a high near 68.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 37.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fraser CO
 39.92°N 105.79°W (Elev. 8796 ft)
Last Update:
12:46 am MDT May 21, 2026
Forecast Valid:
4am MDT May 21, 2026-6pm MDT May 27, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation