Stillwater, OK Weather

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FORECAST DISCUSSION
New AVIATION... .KEY MESSAGES... Updated at 644 AM CDT Tue Sep 23 2025 - Strong to severe storms possible in two rounds, one this morning and again this afternoon into this evening. - Shower and storm chances continue overnight across southern Oklahoma and into western north Texas, but severe threat will diminish. - Mainly dry conditions after Wednesday with temperatures slowly moderating end of the week into the weekend.

NWS OKC Office Area Forecast Discussion

IMMEDIATE FORECAST
Today

Today: Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
Showers And T-Storms Likely then Chance Showers And T-Storms
Hi 90 °F
Showers and thunderstorms likely before 10am, then a chance of showers and thunderstorms. Partly sunny. High near 90, with temperatures falling to around 85 in the afternoon. Southwest wind around 12 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.

Tonight

Tonight: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms
Lo 64 °F
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 64. North northwest wind 7 to 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
THREE-DAY OUTLOOK
Wednesday

Wednesday: Partly Sunny then Slight Chance Showers And Thunderstorms
Partly Sunny then Slight Chance Showers And T-Storms
Hi 78 °F
Wednesday
Night
Wednesday Night: Slight Chance Showers And Thunderstorms then Mostly Clear
Slight Chance Showers And T-Storms then Mostly Clear
Lo 58 °F
Thursday

Thursday: Sunny
Sunny
Hi 81 °F
Thursday
Night
Thursday Night: Clear
Clear
Lo 56 °F
Friday

Friday: Sunny
Sunny
Hi 85 °F
Friday
Night
Friday Night: Mostly Clear
Mostly Clear
Lo 59 °F