Heat Persists in the South Central U.S. and California; Heavy Rain in the Ohio Valley

Sweltering heat remains across the South-Central Plains and Lower/Middle Mississippi Valley, as well as in the Southwest and California this week with limited nighttime relief. Heavy rainfall will lead to localized areas of flash flooding in parts of the Ohio Valley/Central Appalachians. Dry and breezy conditions will enhance fire weather concerns across the northern Rockies and High Plains. Read More >

Current conditions at

Stillwater, Stillwater Regional Airport (KSWO)

Lat: 36.16°NLon: 97.09°WElev: 984ft.

Mostly Cloudy

84°F

29°C

Humidity 53%
Wind Speed SW 5 mph
Barometer 29.97 in (1013.0 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 10 Sep 2:53 am CDT
Extended Forecast for

2 Miles SSE Sumner OK

  • Overnight

    Overnight: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 71. South southwest wind around 7 mph.  Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers and possibly a thunderstorm, mainly before 4pm, then a chance of showers and thunderstorms after 4pm.  High near 81. West southwest wind around 6 mph becoming east northeast in the morning.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 81 °F

    Showers

  • Thursday Night

    Thursday Night: A chance of showers, with thunderstorms also possible after 4am.  Mostly cloudy, then gradually becoming mostly clear, with a low around 65. East wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Friday

    Friday: A slight chance of thunderstorms before 7am.  Mostly sunny, with a high near 90. Heat index values as high as 97. Calm wind becoming south southeast 5 to 9 mph in the morning.  Chance of precipitation is 10%.

    High: 90 °F

    Slight Chance
    T-storms then
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 70. South wind around 8 mph.

    Low: 70 °F

    Mostly Clear

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms before 1pm.  Sunny, with a high near 93.

    High: 93 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 70.

    Low: 70 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

Detailed Forecast

Overnight
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 71. South southwest wind around 7 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers and possibly a thunderstorm, mainly before 4pm, then a chance of showers and thunderstorms after 4pm. High near 81. West southwest wind around 6 mph becoming east northeast in the morning. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
A chance of showers, with thunderstorms also possible after 4am. Mostly cloudy, then gradually becoming mostly clear, with a low around 65. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Friday
A slight chance of thunderstorms before 7am. Mostly sunny, with a high near 90. Heat index values as high as 97. Calm wind becoming south southeast 5 to 9 mph in the morning. Chance of precipitation is 10%.
Friday Night
Mostly clear, with a low around 70. South wind around 8 mph.
Saturday
A 30 percent chance of showers and thunderstorms before 1pm. Sunny, with a high near 93.
Saturday Night
Mostly clear, with a low around 70.
Sunday
Sunny, with a high near 95.
Sunday Night
Mostly clear, with a low around 74.
Monday
Sunny, with a high near 95.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 71.
Tuesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Sumner OK
 36.29°N 97.09°W
1:26 am CDT Sep 10, 2026
3am CDT Sep 10, 2026-6pm CDT Sep 16, 2026
 
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