See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
07:19
Sunrise
19:33
Sunset
Moon
Waxing Crescent
10:51
Moonrise
20:52
Moonset
Daily Forecast
Monday
Today
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Air Quality Data Available
Upgrade to access real-time air quality data for Duncan.
UV Index
Humidity
Weather in Duncan tomorrow, September 15, 2026
Sunshine leads the day in Duncan on September 15, 2026, with a patch of cloud building near 11:00. The broader outlook stays fair despite that temporary thickening. Expect a brighter morning, with limited cloud around 22% by 11:00. Conditions start on a settled note.
Temperatures climb from an overnight low near 26°C toward a daytime high of about 39°C. Expect humidity between 28% and 77%, most humid near 07:00. Winds stay light, near 6.8 km/h by 02:00, so the day feels still more than breezy.
Afternoon conditions open up, holding cloud close to 13% near 16:00. The day finishes on a milder, brighter note. Expect visibility around 16.1 km. Expect sunrise at 07:20, sunset at 19:32, and 12 hours 12 minutes of sunlight today overall.
Overall, Duncan on September 15, 2026 favours outdoor plans under mostly open skies, with a comfortable high near 39°C.
Frequently asked questions about weather in Duncan
How warm does it get in Duncan?
The warmest month in Duncan is July, with average high temperatures of 36°C. The average temperature during this period is around 30°C.
How cold does it get in Duncan?
The coldest month in Duncan is January, with average low temperatures of 0°C. The average temperature during this period is around 5°C.
What is the wettest time of year in Duncan?
The wettest month in Duncan is April, with an average of 133mm of precipitation.
What is the driest time of year in Duncan?
The driest month in Duncan is December, with an average of 36mm of precipitation.
Explore more weather forecasts
- Lawton, Oklahoma
- New York City, New York
- Chickasha, Oklahoma
- Los Angeles, California
- Ardmore, Oklahoma
- Brooklyn, New York
- Norman, Oklahoma
- Chicago, Illinois
- Mustang, Oklahoma
- Houston, Texas
- Moore, Oklahoma
- Queens, New York
- Yukon, Oklahoma
- Phoenix, Arizona
- El Reno, Oklahoma
- Philadelphia, Pennsylvania