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

Baltimore / Martin (KMTN)

Lat: 39.33°NLon: 76.42°WElev: 23ft.

Overcast

63°F

17°C

Humidity 60%
Wind Speed N 9 mph
Barometer 30.22 in
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 21 May 10:45 am EDT
Extended Forecast for

Overlea MD

  • Today

    Today: Showers. High near 63. North wind around 13 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 63 °F

    Showers

  • Tonight

    Tonight: Showers likely, mainly before 2am. Cloudy, with a low around 54. Northeast wind 8 to 11 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 54 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Friday

    Friday: Showers likely, mainly after 2pm. Cloudy, with a high near 63. East wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 63 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Showers. Low around 51. East wind 10 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 51 °F

    Showers

  • Saturday

    Saturday: Showers. High near 60. East wind 13 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 100%.

    High: 60 °F

    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before 2am, then showers likely. Low around 54. Chance of precipitation is 90%.

    Low: 54 °F

    Showers

  • Sunday

    Sunday: Showers likely, mainly before 8am. Mostly cloudy, with a high near 74. Chance of precipitation is 60%.

    High: 74 °F

    Showers
    Likely then
    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers after 2am. Mostly cloudy, with a low around 60. Chance of precipitation is 30%.

    Low: 60 °F

    Mostly Cloudy
    then Chance
    Showers

  • Memorial Day

    Memorial Day: Showers likely, mainly after 2pm. Mostly cloudy, with a high near 78. Chance of precipitation is 60%.

    High: 78 °F

    Showers
    Likely

Detailed Forecast

Today
Showers. High near 63. North wind around 13 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Showers likely, mainly before 2am. Cloudy, with a low around 54. Northeast wind 8 to 11 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Showers likely, mainly after 2pm. Cloudy, with a high near 63. East wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Showers. Low around 51. East wind 10 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Showers. High near 60. East wind 13 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 100%.
Saturday Night
Showers and possibly a thunderstorm before 2am, then showers likely. Low around 54. Chance of precipitation is 90%.
Sunday
Showers likely, mainly before 8am. Mostly cloudy, with a high near 74. Chance of precipitation is 60%.
Sunday Night
A chance of showers after 2am. Mostly cloudy, with a low around 60. Chance of precipitation is 30%.
Memorial Day
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 78. Chance of precipitation is 60%.
Monday Night
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 80. Chance of precipitation is 40%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 63. Chance of precipitation is 30%.
Wednesday
Partly sunny, with a high near 83.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Overlea MD
 39.35°N 76.51°W (Elev. 98 ft)
Last Update:
10:53 am EDT May 21, 2026
Forecast Valid:
11am EDT May 21, 2026-6pm EDT May 27, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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