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HEAT ADVISORY - Payne County

Five Day Weather Forecast for Stillwater

National Weather Service Forecast for: Stillwater, OK
Issued by: National Weather Service Norman, OK

Updated: Tue, 06-09-2026 1:27am CDT

Stillwater, OK

	Tuesday Sunny	Wednesday Sunny	Thursday Sunny then Slight Chance Showers And T-Storms	Friday Showers And T-Storms Likely then Chance Showers And T-Storms	Saturday Chance Showers And T-Storms	Sunday Showers And T-Storms Likely	Monday Chance Showers And T-Storms
	Hi 94 °F	Hi 94 °F	Hi 97 °F	Hi 87 °F	Hi 90 °F	Hi 85 °F	Hi 82 °F

Overnight Mostly Clear	Tuesday Night Mostly Clear	Wednesday Night Mostly Clear	Thursday Night Slight Chance Showers And T-Storms then Showers And T-Storms Likely	Friday Night Chance Showers And T-Storms	Saturday Night Chance Showers And T-Storms then Showers And T-Storms Likely	Sunday Night Showers And T-Storms Likely then Chance Showers And T-Storms
Lo 77 °F	Lo 77 °F	Lo 80 °F	Lo 69 °F	Lo 71 °F	Lo 71 °F	Lo 65 °F

Heat Advisory

Overnight	Mostly clear, with a low around 77. South wind 6 to 10 mph.
Tuesday	Sunny, with a high near 94. Heat index values as high as 103. South wind 10 to 17 mph, with gusts as high as 26 mph.
Tuesday Night	Mostly clear, with a low around 77. Heat index values as high as 101. South wind 13 to 17 mph, with gusts as high as 26 mph.
Wednesday	Sunny, with a high near 94. Heat index values as high as 105. South wind 15 to 20 mph, with gusts as high as 30 mph.
Wednesday Night	Mostly clear, with a low around 80. South wind 15 to 18 mph, with gusts as high as 28 mph.
Thursday	A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 97. Chance of precipitation is 20%.
Thursday Night	A slight chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.
Friday	Showers and thunderstorms likely before 7am, then a chance of showers and thunderstorms between 7am and 1pm. Partly sunny, with a high near 87. Chance of precipitation is 60%.
Friday Night	A chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 71. Chance of precipitation is 40%.
Saturday	A chance of showers and thunderstorms. Partly sunny, with a high near 90. Chance of precipitation is 50%.
Saturday Night	A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 71. Chance of precipitation is 70%.
Sunday	Showers and thunderstorms likely. Partly sunny, with a high near 85. Chance of precipitation is 70%.
Sunday Night	Showers and thunderstorms likely before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.
Monday	A chance of showers and thunderstorms. Mostly sunny, with a high near 82.

Forecast from NOAA-NWS for Stillwater, OK.

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