National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Severe Thunderstorm and Excessive Rainfall Potential for the Central U.S. Today

Severe thunderstorms with a threat for large hail, isolated damaging winds and possibly a tornado are expected in parts of eastern Colorado today from mid afternoon to early evening. Several days of heavy rainfall will begin today over the western Gulf Coast where Flood Watches and excessive rainfall outlooks have been issued for today, Saturday, and Sunday. Read More >

Current conditions at

McAlester, McAlester Regional Airport (KMLC)

Lat: 34.88°NLon: 95.78°WElev: 768ft.

Mostly Cloudy

70°F

21°C

Humidity 90%
Wind Speed N 8 mph
Barometer 29.94 in (1013.0 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 21 May 5:53 pm CDT
Extended Forecast for

7 Miles W Lamar OK

  • Tonight

    Tonight: Showers and possibly a thunderstorm, mainly before 1am, then a chance of showers and thunderstorms after 1am. Low around 61. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 61 °F

    T-storms then
    Showers
    Likely

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms before 10am. Cloudy through mid morning, then gradual clearing, with a high near 80. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 80 °F

    Slight Chance
    T-storms then
    Mostly Sunny

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 61. Light east southeast wind. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 61 °F

    Mostly Clear
    then Chance
    T-storms

  • Saturday

    Saturday: Showers likely before 10am, then showers likely and possibly a thunderstorm between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 80. Calm wind becoming south southeast around 5 mph in the afternoon. Chance of precipitation is 60%.

    High: 80 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62. East southeast wind around 5 mph becoming calm in the evening.

    Low: 62 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 81.

    High: 81 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

  • Memorial Day

    Memorial Day: A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 82.

    High: 82 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 63.

    Low: 63 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
Showers and possibly a thunderstorm, mainly before 1am, then a chance of showers and thunderstorms after 1am. Low around 61. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
A 20 percent chance of showers and thunderstorms before 10am. Cloudy through mid morning, then gradual clearing, with a high near 80. Calm wind becoming west southwest around 5 mph in the afternoon.
Friday Night
A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 61. Light east southeast wind. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers likely before 10am, then showers likely and possibly a thunderstorm between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 80. Calm wind becoming south southeast around 5 mph in the afternoon. Chance of precipitation is 60%.
Saturday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62. East southeast wind around 5 mph becoming calm in the evening.
Sunday
A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 81.
Sunday Night
Partly cloudy, with a low around 63.
Memorial Day
A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 82.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 63.
Tuesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 80.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65.
Wednesday
Showers and thunderstorms likely. Partly sunny, with a high near 81. Chance of precipitation is 60%.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Thursday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 83.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles W Lamar OK
 35.09°N 96.24°W
Last Update:
1:26 pm CDT May 21, 2026
Forecast Valid:
6pm CDT May 21, 2026-6pm CDT May 28, 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