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

Broomfield / Jeffco (KBJC)

Lat: 39.9°NLon: 105.1°WElev: 5551ft.

Fair

43°F

6°C

Humidity 76%
Wind Speed Calm
Barometer 30.04 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 21 May 6:15 am MDT
Extended Forecast for

Blue Valley CO

  • Today

    Today: A chance of snow showers after noon, mixing with rain after 1pm. Some thunder is also possible. Increasing clouds, with a high near 49. West southwest wind 5 to 9 mph, with gusts as high as 16 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 49 °F

    Mostly Sunny
    then Chance
    Rain/Snow

  • Tonight

    Tonight: A slight chance of rain and snow showers before 9pm, then a chance of snow showers. Some thunder is also possible. Partly cloudy, with a low around 28. West wind 6 to 8 mph, with gusts as high as 15 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    Low: 28 °F

    Chance
    Rain/Snow
    then Slight
    Chance Snow
    Showers

  • Friday

    Friday: A 20 percent chance of snow showers after noon. Some thunder is also possible. Increasing clouds, with a high near 47. West wind 5 to 10 mph becoming east in the afternoon. Winds could gust as high as 16 mph.

    High: 47 °F

    Mostly Sunny
    then Slight
    Chance Snow
    Showers

  • Friday Night

    Friday Night: Rain and snow showers likely, becoming all snow after 9pm. Some thunder is also possible. Mostly cloudy, with a low around 32. East southeast wind 5 to 10 mph becoming light and variable. Winds could gust as high as 18 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 32 °F

    Rain/Snow
    Likely then
    Chance Snow
    Showers

  • Saturday

    Saturday: A chance of snow showers after noon, mixing with rain after 3pm. Some thunder is also possible. Partly sunny, with a high near 52. West wind 5 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.

    High: 52 °F

    Mostly Sunny
    then Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 34. Breezy.

    Low: 34 °F

    Mostly Clear
    then Mostly
    Clear and
    Breezy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 61. Breezy.

    High: 61 °F

    Sunny and
    Breezy then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 40.

    Low: 40 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Memorial Day

    Memorial Day: Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 67.

    High: 67 °F

    Sunny then
    Showers
    Likely

Detailed Forecast

Today
A chance of snow showers after noon, mixing with rain after 1pm. Some thunder is also possible. Increasing clouds, with a high near 49. West southwest wind 5 to 9 mph, with gusts as high as 16 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Tonight
A slight chance of rain and snow showers before 9pm, then a chance of snow showers. Some thunder is also possible. Partly cloudy, with a low around 28. West wind 6 to 8 mph, with gusts as high as 15 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Friday
A 20 percent chance of snow showers after noon. Some thunder is also possible. Increasing clouds, with a high near 47. West wind 5 to 10 mph becoming east in the afternoon. Winds could gust as high as 16 mph.
Friday Night
Rain and snow showers likely, becoming all snow after 9pm. Some thunder is also possible. Mostly cloudy, with a low around 32. East southeast wind 5 to 10 mph becoming light and variable. Winds could gust as high as 18 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Saturday
A chance of snow showers after noon, mixing with rain after 3pm. Some thunder is also possible. Partly sunny, with a high near 52. West wind 5 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Saturday Night
Mostly clear, with a low around 34. Breezy.
Sunday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 61. Breezy.
Sunday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 40.
Memorial Day
Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 67.
Monday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 42.
Tuesday
Showers and possibly a thunderstorm. Mostly cloudy, with a high near 62.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 40.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 63. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Blue Valley CO
 39.7°N 105.5°W (Elev. 10197 ft)
Last Update:
12:46 am MDT May 21, 2026
Forecast Valid:
6am MDT May 21, 2026-6pm MDT May 27, 2026
 
Forecast Discussion
 
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Additional Resources

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