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 >

Hazardous Weather Conditions

Current conditions at

Lamar Municipal Airport (KLAA)

Lat: 38.07°NLon: 102.69°WElev: 3684ft.

Overcast

54°F

12°C

Humidity 90%
Wind Speed E 14 mph
Barometer 30.07 in (1015.2 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 21 May 1:53 am MDT
Extended Forecast for

4 Miles NNW Wiley CO

  • Overnight

    Overnight: A chance of showers and thunderstorms. Cloudy, with a low around 40. East wind 10 to 15 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 40 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 73. Breezy, with an east wind 10 to 15 mph becoming south southeast 15 to 20 mph in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 73 °F

    Chance
    Showers then
    Showers
    Likely and
    Breezy

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 44. Breezy, with a southeast wind 15 to 20 mph becoming southeast 10 to 15 mph after midnight. Winds could gust as high as 35 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 44 °F

    Chance
    T-storms and
    Breezy then
    Chance
    Showers

  • Friday

    Friday: Mostly cloudy through mid morning, then gradual clearing, with a high near 69. Breezy, with a north wind 15 to 20 mph, with gusts as high as 35 mph.

    High: 69 °F

    Becoming
    Sunny and
    Breezy

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms, then a chance of showers after midnight. Mostly cloudy, with a low around 41. Northeast wind 5 to 15 mph becoming southeast after midnight. Chance of precipitation is 30%.

    Low: 41 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 74. South southeast wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Chance of precipitation is 40%.

    High: 74 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 42. East southeast wind 10 to 15 mph becoming light and variable after midnight.

    Low: 42 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 84. Light south southwest wind becoming south southeast 5 to 10 mph in the morning.

    High: 84 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 47. Southeast wind 5 to 10 mph.

    Low: 47 °F

    Mostly Clear

Detailed Forecast

Overnight
A chance of showers and thunderstorms. Cloudy, with a low around 40. East wind 10 to 15 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 73. Breezy, with an east wind 10 to 15 mph becoming south southeast 15 to 20 mph in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A 50 percent chance of showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 44. Breezy, with a southeast wind 15 to 20 mph becoming southeast 10 to 15 mph after midnight. Winds could gust as high as 35 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Mostly cloudy through mid morning, then gradual clearing, with a high near 69. Breezy, with a north wind 15 to 20 mph, with gusts as high as 35 mph.
Friday Night
A slight chance of showers and thunderstorms, then a chance of showers after midnight. Mostly cloudy, with a low around 41. Northeast wind 5 to 15 mph becoming southeast after midnight. Chance of precipitation is 30%.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 74. South southeast wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Chance of precipitation is 40%.
Saturday Night
A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 42. East southeast wind 10 to 15 mph becoming light and variable after midnight.
Sunday
Sunny, with a high near 84. Light south southwest wind becoming south southeast 5 to 10 mph in the morning.
Sunday Night
Mostly clear, with a low around 47. Southeast wind 5 to 10 mph.
Memorial Day
A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 88. South southeast wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 49. Breezy, with a south southeast wind 15 to 20 mph.
Tuesday
Mostly sunny, with a high near 85. Windy, with a south southeast wind 20 to 25 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 45 mph.
Tuesday Night
Mostly cloudy, with a low around 48. Breezy, with a south southeast wind 15 to 25 mph.
Wednesday
Mostly sunny, with a high near 86. Breezy, with a south southeast wind 15 to 20 mph, with gusts as high as 30 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNW Wiley CO
 38.2°N 102.75°W (Elev. 3799 ft)
Last Update:
12:31 am MDT May 21, 2026
Forecast Valid:
2am MDT May 21, 2026-6pm MDT May 27, 2026
 
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Additional Resources

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Chance of Precipitation