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.

Partly Cloudy

36°F

2°C

Humidity 86%
Wind Speed Calm
Barometer 30.24 in
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Last update 20 May 10:15 pm MDT
Extended Forecast for

Fraser CO

  • Tonight

    Tonight: Mostly clear, with a low around 25. Light and variable wind.

    Low: 25 °F

    Mostly Clear

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 57. Light and variable wind becoming west 6 to 11 mph in the morning. Winds could gust as high as 18 mph.

    High: 57 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: Snow showers likely, possibly mixed with rain, becoming all snow after 3am. Some thunder is also possible. Mostly cloudy, with a low around 27. West wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 27 °F

    Rain/Snow
    Likely

  • Friday

    Friday: A chance of snow showers before noon, then a slight chance of rain and snow showers between noon and 3pm, then a slight chance of rain showers after 3pm. Some thunder is also possible. Partly sunny, with a high near 55. Calm wind becoming west around 6 mph in the morning. Winds could gust as high as 15 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    High: 55 °F

    Chance Snow
    Showers then
    Slight Chance
    Rain/Snow

  • Friday Night

    Friday Night: A slight chance of rain showers before midnight, then a slight chance of rain and snow showers between midnight and 3am, then a slight chance of snow showers after 3am. Partly cloudy, with a low around 28. West northwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 28 °F

    Slight Chance
    Showers then
    Slight Chance
    Rain/Snow

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 60.

    High: 60 °F

    Sunny then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 30.

    Low: 30 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 25. Light and variable wind.
Thursday
A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 57. Light and variable wind becoming west 6 to 11 mph in the morning. Winds could gust as high as 18 mph.
Thursday Night
Snow showers likely, possibly mixed with rain, becoming all snow after 3am. Some thunder is also possible. Mostly cloudy, with a low around 27. West wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Friday
A chance of snow showers before noon, then a slight chance of rain and snow showers between noon and 3pm, then a slight chance of rain showers after 3pm. Some thunder is also possible. Partly sunny, with a high near 55. Calm wind becoming west around 6 mph in the morning. Winds could gust as high as 15 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Friday Night
A slight chance of rain showers before midnight, then a slight chance of rain and snow showers between midnight and 3am, then a slight chance of snow showers after 3am. Partly cloudy, with a low around 28. West northwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 20%.
Saturday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 60.
Saturday Night
Mostly clear, with a low around 30.
Sunday
Sunny, with a high near 70.
Sunday Night
Mostly clear, with a low around 34.
Memorial Day
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 73.
Monday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 35.
Tuesday
Showers likely 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 35.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 66.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Fraser CO
 39.94°N 105.82°W (Elev. 8596 ft)
Last Update:
12:46 pm MDT May 20, 2026
Forecast Valid:
10pm MDT May 20, 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