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May 18th, 2026 :: 2:22 am CDT   

Local Weather Report for
Stillwater
Oklahoma, United States

 Stillwater Weather Forecast Summary  
 
Today
May 18th
Tuesday
May 19th
Wednesday
May 20th
Thursday
May 21st
Friday
May 22nd
Mostly Sunny Mostly Sunny Mix of Cloud and Sun Mix of Cloud and Sun Mostly Sunny
83°F
78°F
59°F
68°F
57°F
80°F
60°F
75°F
57°F
 
 Stillwater Detailed Weather Forecast  
 
Monday, May 18th, 2026
Overnight Temperature: 75°F
Mostly clear. Chance of a thunderstorm. Wind 20 to 30 mph.
Morning Temperature: 77°F
Mostly sunny. Chance of a thunderstorm. Wind 20 to 30 mph.
Afternoon Temperature: 80°F
A mix of sun and cloud. Chance of a thunderstorm. Wind 20 to 30 mph.
Evening Temperature: 81°F
Mostly clear. Chance of a thunderstorm. Wind 25 to 40 mph.
Tuesday, May 19th, 2026
Overnight Temperature: 77°F
Clear. Chance of a thunderstorm. Wind 25 to 40 mph.
Morning Temperature: 60°F
Mostly sunny. Windy.
Afternoon Temperature: 71°F
Sunny with cloudy periods. Windy at times.
Evening Temperature: 67°F
Mostly clear. Windy at times.
Wednesday, May 20th, 2026
Overnight Temperature: 61°F
Clear with cloudy periods. Windy at times.
Morning Temperature: 60°F
A mix of cloud and sun. Windy at times.
Afternoon Temperature: 66°F
Cloudy. Windy at times.
Evening Temperature: 61°F
A mix of cloudy and clear skies. Windy at times.
Thursday, May 21st, 2026
Overnight Temperature: 60°F
Mostly cloudy with a slight chance of showers.
Morning Temperature: 65°F
Cloudy with a chance of showers. Slight chance of a thunderstorm. Windy at times.
Afternoon Temperature: 74°F
Sunny with cloudy periods with a chance of showers or thundershowers. Windy at times.
Evening Temperature: 70°F
Clear with cloudy periods with a slight chance of showers or thundershowers. Windy at times.
Friday, May 22nd, 2026
Overnight Temperature: 58°F
Clear with cloudy periods with a chance of showers.
Morning Temperature: 62°F
Mostly sunny with a chance of showers.
Afternoon Temperature: 75°F
A mix of cloud and sun. Chance of a thunderstorm. Windy at times.
Evening Temperature: 71°F
Mostly clear with a chance of showers or thundershowers. Windy at times.
Saturday, May 23rd, 2026
Overnight Temperature: 63°F
A mix of cloudy and clear skies with showers likely. Windy.
Morning Temperature: 68°F
A mix of cloud and sun with a chance of showers or thundershowers. Windy.
Afternoon Temperature: 84°F
Mostly sunny. Chance of a thunderstorm. Windy at times.
Evening Temperature: 78°F
Mostly clear with a chance of showers or thundershowers. Windy at times.
Sunday, May 24th, 2026
Overnight Temperature: 66°F
Clear with cloudy periods with showers likely. Chance of a thunderstorm. Windy at times.
Morning Temperature: 72°F
Mostly sunny with a chance of showers or thundershowers. Windy at times.
Afternoon Temperature: 80°F
A mix of cloud and sun with a chance of showers or thundershowers. Windy.
Evening Temperature: 69°F
A mix of cloudy and clear skies with a chance of showers or thundershowers. Windy at times.
Monday, May 25th, 2026
Overnight Temperature: 65°F
A mix of clear and cloudy skies.
Morning Temperature: 69°F
A mix of cloud and sun with a slight chance of showers or thundershowers.
Afternoon Temperature: 84°F
Mostly sunny. Chance of a thunderstorm. Windy at times.
Evening Temperature: 74°F
Mostly clear with showers likely. Chance of a thunderstorm. Windy at times.





 

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This WeatherCity Weather Forecast for Stillwater, Oklahoma, United States is computed using a computer-generated forecast model and should be considered experimental. Please confirm this weather information with your official weather information office

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