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

Stillwater, Stillwater Regional Airport (KSWO)

Lat: 36.16°NLon: 97.09°WElev: 984ft.

Fair

79°F

26°C

Humidity 72%
Wind Speed S 13 mph
Barometer 29.81 in (1007.9 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 20 Jun 10:53 pm CDT
Extended Forecast for

Glencoe OK

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

  • Tonight

    Tonight: Partly cloudy, with a low around 73. South wind 10 to 14 mph, with gusts as high as 21 mph.

    Low: 73 °F

    Partly Cloudy

  • Sunday

    Sunday: A slight chance of showers and thunderstorms before 1pm, then a slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, then gradually becoming sunny, with a high near 95. Heat index values as high as 106. South southwest wind 16 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 20%.

    High: 95 °F

    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Low around 69. South wind 7 to 15 mph becoming west northwest in the evening. Winds could gust as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 69 °F

    Showers

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 82. East northeast wind around 10 mph.

    High: 82 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Low around 66. East northeast wind 7 to 10 mph. Chance of precipitation is 80%.

    Low: 66 °F

    Showers

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 82. Chance of precipitation is 50%.

    High: 82 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 67. Chance of precipitation is 60%.

    Low: 67 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 83.

    High: 83 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.

    Low: 66 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Partly cloudy, with a low around 73. South wind 10 to 14 mph, with gusts as high as 21 mph.
Sunday
A slight chance of showers and thunderstorms before 1pm, then a slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, then gradually becoming sunny, with a high near 95. Heat index values as high as 106. South southwest wind 16 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 20%.
Sunday Night
Showers and possibly a thunderstorm. Low around 69. South wind 7 to 15 mph becoming west northwest in the evening. Winds could gust as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Monday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 82. East northeast wind around 10 mph.
Monday Night
Showers and possibly a thunderstorm. Low around 66. East northeast wind 7 to 10 mph. Chance of precipitation is 80%.
Tuesday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 82. Chance of precipitation is 50%.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 67. Chance of precipitation is 60%.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 83.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.
Thursday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 83.
Thursday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Friday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 86.
Friday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Glencoe OK
 36.22°N 96.92°W
Last Update:
1:27 pm CDT Jun 20, 2026
Forecast Valid:
11pm 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