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

Risks of Severe Thunderstorms and Excessive Rainfall in the Central U.S.; Fire Weather Concerns in Alaska and Southwest

An expansive storm system will bring widespread storms with a threat for flash flooding and severe weather to much of the central to eastern U.S. into early this week. Critical fire weather conditions are expected across interior Alaska this weekend. Elevated fire conditions also expected in the Southwest U.S.. Conditions will remain uncomfortably hot across the southern Plains and the Southeast. Read More >

Hazardous Weather Conditions

Current conditions at

Lawton, Lawton Municipal Airport (KLAW)

Lat: 34.56°NLon: 98.42°WElev: 1109ft.

Fair

83°F

28°C

Humidity 72%
Wind Speed SE 12 mph
Barometer 29.80 in (1007.8 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 20 Jun 8:53 pm CDT
Extended Forecast for

Fort Sill OK

Heat Advisory June 21, 01:00pm until June 21, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Tonight

    Tonight: Mostly clear, with a low around 73. South wind 9 to 13 mph, with gusts as high as 20 mph.

    Low: 73 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 96. Heat index values as high as 106. South wind 13 to 20 mph, with gusts as high as 30 mph.

    High: 96 °F

    Sunny

  • Sunday Night

    Sunday Night: A slight chance of showers, then a chance of showers and thunderstorms after 10pm. Clear during the early evening, then becoming mostly cloudy, with a low around 74. South wind 8 to 17 mph becoming east after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 40%.

    Low: 74 °F

    Chance
    T-storms

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 91. Heat index values as high as 98. South southeast wind 9 to 13 mph, with gusts as high as 20 mph.

    High: 91 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 70. East wind 7 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.

    Low: 70 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 90.

    High: 90 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, with a high near 87.

    High: 87 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 69. Chance of precipitation is 60%.

    Low: 69 °F

    Showers
    Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 73. South wind 9 to 13 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 96. Heat index values as high as 106. South wind 13 to 20 mph, with gusts as high as 30 mph.
Sunday Night
A slight chance of showers, then a chance of showers and thunderstorms after 10pm. Clear during the early evening, then becoming mostly cloudy, with a low around 74. South wind 8 to 17 mph becoming east after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 40%.
Monday
A 30 percent chance of showers and thunderstorms before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 91. Heat index values as high as 98. South southeast wind 9 to 13 mph, with gusts as high as 20 mph.
Monday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 70. East wind 7 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Tuesday
A 40 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 90.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Wednesday
A 50 percent chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, with a high near 87.
Wednesday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 69. Chance of precipitation is 60%.
Thursday
A 30 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 87.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Friday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 91.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Saturday
Mostly sunny, with a high near 95.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Fort Sill OK
 34.67°N 98.41°W
Last Update:
1:27 pm CDT Jun 20, 2026
Forecast Valid:
9pm CDT Jun 20, 2026-6pm CDT Jun 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