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

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

Lawton, Lawton Municipal Airport (KLAW)

Lat: 34.56°NLon: 98.42°WElev: 1109ft.

A Few Clouds

98°F

37°C

Humidity 26%
Wind Speed S 12 G 23 mph
Barometer 30.04 in (1015.9 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Heat Index97°F (36°C)
Last update 18 Sep 3:53 pm CDT
Extended Forecast for

Fort Sill OK

  • Tonight

    Tonight: Mostly clear, with a low around 75. South wind 7 to 11 mph.

    Low: 75 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 101. South wind 7 to 11 mph.

    High: 101 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 76. South wind around 10 mph.

    Low: 76 °F

    Mostly Clear

  • Sunday

    Sunday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny and hot, with a high near 100. South wind 7 to 10 mph. Chance of precipitation is 60%.

    High: 100 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Partly cloudy, with a low around 67. South southeast wind 5 to 9 mph becoming light and variable. Chance of precipitation is 60%.

    Low: 67 °F

    Showers
    Likely

  • Monday

    Monday: A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 92.

    High: 92 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 65.

    Low: 65 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 87.

    High: 87 °F

    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 75. South wind 7 to 11 mph.
Saturday
Sunny and hot, with a high near 101. South wind 7 to 11 mph.
Saturday Night
Mostly clear, with a low around 76. South wind around 10 mph.
Sunday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny and hot, with a high near 100. South wind 7 to 10 mph. Chance of precipitation is 60%.
Sunday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Partly cloudy, with a low around 67. South southeast wind 5 to 9 mph becoming light and variable. Chance of precipitation is 60%.
Monday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 92.
Monday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 65.
Tuesday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 87.
Tuesday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 63.
Wednesday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 88.
Wednesday Night
Partly cloudy, with a low around 65.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 89.
Thursday Night
Mostly cloudy, with a low around 66.
Friday
Partly sunny, with a high near 90.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Fort Sill OK
 34.65°N 98.41°W
Last Update:
1:27 pm CDT Sep 18, 2026
Forecast Valid:
4pm CDT Sep 18, 2026-6pm CDT Sep 25, 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