Severe Thunderstorm and Heavy Rainfall Threat Tonight; Heat Continues on Tuesday Across the Eastern U.S.

Severe weather and flash flooding threats continue across the Central Plains and Midwest into tonight. Very large hail, strong tornadoes and damaging winds are expected. An early season heat wave will continue to challenge temperature records across the eastern U.S. through Wednesday. Read More >

Current conditions at

Stillwater, Stillwater Regional Airport (KSWO)

Lat: 36.16°NLon: 97.09°WElev: 984ft.

Thunderstorm Heavy Rain Fog/Mist

66°F

19°C

Humidity 96%
Wind Speed NW 9 mph
Barometer 29.86 in (1009.8 mb)
Dewpoint 65°F (18°C)
Visibility 4.00 mi
Last update 19 May 2:53 am CDT
Extended Forecast for

2 Miles SSE Stillwater OK

Severe T-storm Watch May 19, 03:18am until May 19, 07:00am
Click here for hazard details and duration
Severe T-storm Watch
  •  
    Severe T-storm Watch May 19, 03:18am until May 19, 07:00am

    NOW until 7:00am Tue

    Severe T-storm Watch

  • Overnight

    Low: 60 °F

    Severe
    Thunderstorms

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm before 7am, then a chance of showers and thunderstorms between 7am and 10am. Some of the storms could be severe.  Temperature falling to around 59 by 11am. North wind 9 to 14 mph, with gusts as high as 21 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 64 °F

    Severe
    Thunderstorms
    then Mostly
    Cloudy

  • 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.  Mostly cloudy, with a low around 53. North northeast wind 7 to 10 mph.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 53 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: A 20 percent chance of showers before 1pm.  Mostly cloudy, with a high near 71. Northeast wind around 9 mph.

    High: 71 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am.  Mostly cloudy, with a low around 57. Northeast wind 5 to 9 mph.  Chance of precipitation is 60%.

    Low: 57 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Thursday

    Thursday: Showers and possibly a thunderstorm.  High near 73. Chance of precipitation is 90%.

    High: 73 °F

    Showers

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am.  Cloudy, with a low around 58. Chance of precipitation is 70%.

    Low: 58 °F

    Showers
    Likely

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 79.

    High: 79 °F

    Slight Chance
    T-storms

Detailed Forecast

Overnight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4am. Some of the storms could be severe. Low around 60. West northwest wind 10 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
Showers and possibly a thunderstorm before 7am, then a chance of showers and thunderstorms between 7am and 10am. Some of the storms could be severe. Temperature falling to around 59 by 11am. North wind 9 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
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. Mostly cloudy, with a low around 53. North northeast wind 7 to 10 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 71. Northeast wind around 9 mph.
Wednesday Night
A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 57. Northeast wind 5 to 9 mph. Chance of precipitation is 60%.
Thursday
Showers and possibly a thunderstorm. High near 73. Chance of precipitation is 90%.
Thursday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Cloudy, with a low around 58. Chance of precipitation is 70%.
Friday
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 79.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 81.
Saturday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 82.
Sunday Night
Mostly cloudy, with a low around 62.
Memorial Day
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Stillwater OK
 36.11°N 97.06°W
2:21 am CDT May 19, 2026
3am CDT May 19, 2026-6pm CDT May 25, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database