Stillwater Weather Forecast  -   Outlook This Afternoon & Tonight

This Afternoon Sunny Hi 94 °F NWS forecast: Sunny, with a high near 94. Heat index values as high as 102. South southwest wind around 15 mph, with gusts as high as 23 mph. Tonight Chance Showers And T-Storms Lo 71 °F NWS forecast: A chance of showers and thunderstorms after 10pm. Mostly cloudy. Low around 71, with temperatures rising to around 75 overnight. Heat index values as high as 100. South wind 7 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.

Short Term Weather Forecast For Stillwater

Wednesday Showers And T-Storms Hi 80 °F Wednesday Night Showers And T-Storms Lo 67 °F Thursday Showers And T-Storms Hi 79 °F Thursday Night Chance Rain Showers Lo 50 °F Friday Slight Chance Rain Showers then Partly Sunny Hi 61 °F Friday Night Partly Cloudy Lo 40 °F

NWS forecast for Stillwater, OK updated Tue, 10-13-2026 1:27pm CDT. Forecast script from Saratoga-Weather.org

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A statement generally provides additional or follow up information to an existing weather condition.

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A watch is used when the risk of a hazardous weather event has increased significantly, but its occurrence, locations, and/or timing is still uncertain. It is intended to provide advance notice of possible inclement weather.

A warning is used for conditions posing an immediate threat to life or property. Depending on the type of warning, you should take immediate, appropriate action.

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