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

Extreme Heat and Excessive Rainfall Today

Dangerous and extreme heat will remain across portions of the southern U.S. through the weekend. A heat wave over the Southwest U.S. will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Multiple rounds of thunderstorms will produce heavy to excessive rainfall with significant flash flooding across portions of southern New England. Read More >

Hazardous Weather Conditions

Current conditions at

McAlester, McAlester Regional Airport (KMLC)

Lat: 34.88°NLon: 95.78°WElev: 768ft.

Fair

76°F

24°C

Humidity 88%
Wind Speed Calm
Barometer 29.91 in (1011.7 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index76°F (24°C)
Last update 30 Jul 3:53 am CDT
Extended Forecast for

4 Miles SSW Lamar OK

Heat Advisory July 30, 12:00pm until July 30, 09:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: Mostly sunny and hot, with a high near 100. Heat index values as high as 110. Calm wind becoming south around 6 mph in the morning.

    High: 100 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 79. South southeast wind around 6 mph.

    Low: 79 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny and hot, with a high near 102. Heat index values as high as 110. West southwest wind 6 to 8 mph. Chance of precipitation is 20%.

    High: 102 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 74. West wind around 5 mph becoming light and variable.

    Low: 74 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny, with a high near 91. North wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 91 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 69.

    Low: 69 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

Detailed Forecast

Today
Mostly sunny and hot, with a high near 100. Heat index values as high as 110. Calm wind becoming south around 6 mph in the morning.
Tonight
Mostly clear, with a low around 79. South southeast wind around 6 mph.
Friday
A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny and hot, with a high near 102. Heat index values as high as 110. West southwest wind 6 to 8 mph. Chance of precipitation is 20%.
Friday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 74. West wind around 5 mph becoming light and variable.
Saturday
Mostly sunny, with a high near 91. North wind 6 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Mostly clear, with a low around 69.
Sunday
Sunny, with a high near 90.
Sunday Night
Clear, with a low around 69.
Monday
Sunny, with a high near 93.
Monday Night
Clear, with a low around 71.
Tuesday
Sunny, with a high near 96.
Tuesday Night
Clear, with a low around 74.
Wednesday
Sunny and hot, with a high near 97.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Lamar OK
 35.04°N 96.16°W
Last Update:
1:27 am CDT Jul 30, 2026
Forecast Valid:
4am CDT Jul 30, 2026-6pm CDT Aug 5, 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