Duncan, OK Weather Forecast
Local 7-day forecast
Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Duncan, OK in one place.
Showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 78. Chance of precipitation is 80%.
Local Weather Overview
This forecast page for Duncan, OK is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Apr 10, 2026 1:28 AM CDT.
The active forecast window currently covers Apr 12 to Apr 16, 2026 for Duncan, OK.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 12 to Apr 16, 2026
- Latest sync
- Apr 10, 2026 1:28 AM CDT
- Forecast office
- OUN
- Source
- NOAA / NWS
Daily Outlook
This Week in Duncan
Monday looks like the warmest upcoming period in Duncan at 85 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 57 degrees F.
The strongest winds are forecast for Tuesday at about 14 to 20 mph S.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 10, 2026 1:28 AM CDT
- Coverage
- 5 days
- Time zone
- America/Chicago
- Forecast office
- OUN
- Radar station
- KFDR
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 63. Chance of precipitation is 50%.
Partly sunny, with a high near 85.
A chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 64. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Partly sunny, with a high near 83. Chance of precipitation is 40%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 57. Chance of precipitation is 40%.
A chance of showers and thunderstorms. Mostly sunny, with a high near 81. Chance of precipitation is 30%.
A slight chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 57. Chance of precipitation is 30%.
A chance of rain showers before 7am. Sunny, with a high near 82.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
Apr 12
|
Showers And Thunderstorms
|
78°F |
14 to 18 mph
S
|
|
Sunday Night
Apr 12
|
Chance Showers And Thunderstorms
|
63°F |
15 mph
S
|
|
Monday
Apr 13
|
Partly Sunny
|
85°F |
14 to 18 mph
SSW
|
|
Monday Night
Apr 13
|
Chance Showers And Thunderstorms
|
64°F |
14 to 17 mph
S
|
|
Tuesday
Apr 14
|
Chance Showers And Thunderstorms
|
83°F |
14 to 20 mph
S
|
|
Tuesday Night
Apr 14
|
Chance Showers And Thunderstorms
|
57°F |
10 to 16 mph
S
|
|
Wednesday
Apr 15
|
Chance Showers And Thunderstorms
|
81°F |
13 mph
SW
|
|
Wednesday Night
Apr 15
|
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
|
57°F |
7 to 10 mph
S
|
|
Thursday
Apr 16
|
Chance Rain Showers then Sunny
|
82°F |
6 to 13 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Duncan.
