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

College Park Airport (KCGS)

Lat: 38.98°NLon: 76.92°WElev: 49ft.

Fog/Mist

69°F

21°C

Humidity 96%
Wind Speed N 5 mph
Barometer 30.07 in
Dewpoint 68°F (20°C)
Visibility 7.00 mi
Last update 21 May 4:35 am EDT
Extended Forecast for

Southern Md Facility MD

  • Overnight

    Overnight: A chance of showers. Cloudy, with a steady temperature around 68. North wind around 6 mph. Chance of precipitation is 40%.

    Low: 68 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 5pm, then a chance of showers and thunderstorms after 5pm. Cloudy, with a high near 64. Northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 64 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of showers, mainly between 1am and 2am. Cloudy, with a low around 53. Northeast wind around 6 mph. Chance of precipitation is 40%.

    Low: 53 °F

    Chance
    Showers

  • Friday

    Friday: Showers, mainly after 8am. High near 61. East wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 61 °F

    Showers

  • Friday Night

    Friday Night: Showers. Low around 49. Northeast wind 7 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 90%.

    Low: 49 °F

    Showers

  • Saturday

    Saturday: Showers, with thunderstorms also possible after 5pm. High near 63. Chance of precipitation is 90%.

    High: 63 °F

    Showers

  • Saturday Night

    Saturday Night: Showers, mainly before 2am. Low around 52. Chance of precipitation is 90%.

    Low: 52 °F

    Showers

  • Sunday

    Sunday: A chance of showers before 8am. Mostly cloudy, with a high near 73. Chance of precipitation is 30%.

    High: 73 °F

    Chance
    Showers then
    Mostly Cloudy

  • Sunday Night

    Sunday Night: A chance of showers after 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.

    Low: 59 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Overnight
A chance of showers. Cloudy, with a steady temperature around 68. North wind around 6 mph. Chance of precipitation is 40%.
Thursday
A chance of showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 5pm, then a chance of showers and thunderstorms after 5pm. Cloudy, with a high near 64. Northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers, mainly between 1am and 2am. Cloudy, with a low around 53. Northeast wind around 6 mph. Chance of precipitation is 40%.
Friday
Showers, mainly after 8am. High near 61. East wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Showers. Low around 49. Northeast wind 7 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 90%.
Saturday
Showers, with thunderstorms also possible after 5pm. High near 63. Chance of precipitation is 90%.
Saturday Night
Showers, mainly before 2am. Low around 52. Chance of precipitation is 90%.
Sunday
A chance of showers before 8am. Mostly cloudy, with a high near 73. Chance of precipitation is 30%.
Sunday Night
A chance of showers after 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.
Memorial Day
A chance of showers. Mostly cloudy, with a high near 78. Chance of precipitation is 50%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 62. Chance of precipitation is 50%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 79. Chance of precipitation is 30%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.
Wednesday
Partly sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Southern Md Facility MD
 39.03°N 76.91°W (Elev. 148 ft)
Last Update:
2:22 am EDT May 21, 2026
Forecast Valid:
4am EDT May 21, 2026-6pm EDT 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