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February 18th, 2026 :: 6:30 pm CST   

Local Weather Report for
Duncan
Oklahoma, United States

 Current Duncan Weather Conditions Updated February 18th at 4:55 pm 
Temperature:73°F Dew Point:27°F
Barometer:29.65 inHg Wind:N 28 Mph
Humidity:17.4% Visibility:0M
 
 Duncan Weather Forecast Summary  
 
Today
Feb 18th
Thursday
Feb 19th
Friday
Feb 20th
Saturday
Feb 21st
Sunday
Feb 22nd
Cloudy Cloudy Cloudy Cloudy Cloudy
72°F
69°F
48°F
57°F
42°F
49°F
38°F
49°F
33°F
 
 Duncan Detailed Weather Forecast  
 
Wednesday, February 18th, 2026
Evening Temperature: 62°F
Clear. Windy.
Thursday, February 19th, 2026
Overnight Temperature: 56°F
Clear. Windy at times.
Morning Temperature: 65°F
Cloudy. Windy.
Afternoon Temperature: 62°F
Cloudy.
Evening Temperature: 52°F
Clear. Windy.
Friday, February 20th, 2026
Overnight Temperature: 44°F
Clear. Windy at times.
Morning Temperature: 50°F
Cloudy. Windy.
Afternoon Temperature: 54°F
Sunny.
Evening Temperature: 47°F
Clear with cloudy periods.
Saturday, February 21st, 2026
Overnight Temperature: 48°F
Cloudy.
Morning Temperature: 46°F
Sunny with cloudy periods. Wind 20 to 30 mph.
Afternoon Temperature: 46°F
Sunny. Windy.
Evening Temperature: 39°F
Clear. Windy at times.
Sunday, February 22nd, 2026
Overnight Temperature: 35°F
Clear. Windy at times.
Morning Temperature: 43°F
Sunny. Windy.
Afternoon Temperature: 46°F
Sunny. Windy at times.
Evening Temperature: 39°F
Cloudy.
Monday, February 23rd, 2026
Overnight Temperature: 33°F
Cloudy.
Morning Temperature: 41°F
A mix of cloud and sun.
Afternoon Temperature: 47°F
Cloudy.
Evening Temperature: 41°F
Clear. Windy at times.
Tuesday, February 24th, 2026
Overnight Temperature: 39°F
Cloudy. Windy at times.
Morning Temperature: 51°F
Cloudy. Wind 20 to 30 mph.
Afternoon Temperature: 57°F
Cloudy. Windy.
Evening Temperature: 54°F
Cloudy. Wind 20 to 30 mph.
Wednesday, February 25th, 2026
Overnight Temperature: 51°F
Cloudy. Windy.
Morning Temperature: 66°F
A mix of cloud and sun. Windy.
Afternoon Temperature: 71°F
Cloudy.
Evening Temperature: 62°F
Cloudy.





 

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This WeatherCity Weather Forecast for Duncan, 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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