Severe Weather Across the Center of the Nation; Fire Weather Concerns for Southwest and California; Snow for the Central Rockies

Severe thunderstorms will continue to impact the center of the Nation through today. Very large hail, strong tornadoes, and damaging winds are expected from the Great Lakes into the central/southern Plains; Flash flooding is possible for portions into the mid-Mississippi Valley. Critical fire weather conditions for the Southwest and central valley of California today. Winter hangs on for Rockies. Read More >

Current conditions at

Stillwater, Stillwater Regional Airport (KSWO)

Lat: 36.16°NLon: 97.09°WElev: 984ft.

Overcast with Haze

78°F

26°C

Humidity 76%
Wind Speed S 16 G 24 mph
Barometer 29.76 in (1006.4 mb)
Dewpoint 70°F (21°C)
Visibility 5.00 mi
Heat Index80°F (27°C)
Last update 18 May 7:53 am CDT
Extended Forecast for

5 Miles SW Sumner OK

Wind Advisory until May 18, 10:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory until May 18, 10:00pm

    NOW until 10:00pm Mon

    Wind Advisory

  • Today

    High: 88 °F

    Partly Sunny
    and Windy

  • Tonight

    Tonight: A slight chance of showers and thunderstorms between 10pm and 1am, then showers and possibly a thunderstorm after 1am.  Low around 59. Windy, with a south wind 16 to 25 mph becoming northwest after midnight. Winds could gust as high as 38 mph.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Slight Chance
    T-storms and
    Windy then
    Showers

  • Tuesday

    Tuesday: A 30 percent chance of showers before 1pm.  Mostly cloudy, with a high near 70. North wind 14 to 17 mph, with gusts as high as 26 mph.

    High: 70 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then showers likely after 4am.  Cloudy, with a low around 53. North northeast wind 10 to 13 mph, with gusts as high as 18 mph.  Chance of precipitation is 60%.

    Low: 53 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A 20 percent chance of showers before 1pm.  Mostly cloudy, with a high near 71. Northeast wind around 14 mph, with gusts as high as 20 mph.

    High: 71 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: A slight chance of showers, then a chance of showers and thunderstorms after 1am.  Mostly cloudy, with a low around 55. Chance of precipitation is 50%.

    Low: 55 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm.  Cloudy, with a high near 73. Chance of precipitation is 70%.

    High: 73 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 58. Chance of precipitation is 50%.

    Low: 58 °F

    Chance
    T-storms

Detailed Forecast

Today
Partly sunny, with a high near 88. Windy, with a south wind 23 to 28 mph, with gusts as high as 41 mph.
Tonight
A slight chance of showers and thunderstorms between 10pm and 1am, then showers and possibly a thunderstorm after 1am. Low around 59. Windy, with a south wind 16 to 25 mph becoming northwest after midnight. Winds could gust as high as 38 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
A 30 percent chance of showers before 1pm. Mostly cloudy, with a high near 70. North wind 14 to 17 mph, with gusts as high as 26 mph.
Tuesday Night
A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then showers likely after 4am. Cloudy, with a low around 53. North northeast wind 10 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 60%.
Wednesday
A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 71. Northeast wind around 14 mph, with gusts as high as 20 mph.
Wednesday Night
A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 55. Chance of precipitation is 50%.
Thursday
Showers likely and possibly a thunderstorm. Cloudy, with a high near 73. Chance of precipitation is 70%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Chance of precipitation is 50%.
Friday
A slight chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 78. Chance of precipitation is 20%.
Friday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 58.
Saturday
Partly sunny, with a high near 82.
Saturday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61.
Sunday
Mostly sunny, with a high near 84.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW Sumner OK
 36.26°N 97.17°W
5:02 am CDT May 18, 2026
8am CDT May 18, 2026-6pm CDT May 24, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database