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Duncan, OK 73534 Weather
Current conditions
Observed at Duncan, Halliburton Field Airport · 51 min ago
Forecast
10-day-
Overnight
Clear, with a low around 54. Southeast wind around 7 mph.
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Wednesday
Sunny, with a high near 79. South southeast wind 3 to 7 mph.
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Wednesday Night
Mostly clear, with a low around 56. Southeast wind around 6 mph.
National Weather Service forecast updated 59 min ago.
Hourly
Hourly forecast- Now57°
- 3 AM56°
- 4 AM55°
- 5 AM55°
- 6 AM54°
- 7 AM54°
- 8 AM54°
- 9 AM58°
- 10 AM64°
- 11 AM68°
- 12 PM71°
- 1 PM75°
- 2 PM77°
- 3 PM77°
- 4 PM79°
- 5 PM77°
- 6 PM76°
- 7 PM73°
- 8 PM68°
- 9 PM65°
- 10 PM64°
- 11 PM62°
- Thu12 AM61°
- 1 AM60°
10-day forecast
Details- TonightOct 20Clear54°
- TodayOct 21Sunny56°79°
- ThuOct 22Sunny56°80°
- FriOct 23Mostly Sunny57°80°
- SatOct 24Mostly Sunny59°79°
- SunOct 25Partly Sunny10%56°76°
- MonOct 26Chance Rain Showers38%52°73°
- TueOct 27Chance Rain Showers30%66°
- WedOct 28Sunny42°55°
- ThuOct 29Sunny38°58°
Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.
Radar
Full mapWeather news near Duncan
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Air quality
Air quality is satisfactory, and air pollution poses little or no risk.
Forecast
- WedModerate (60)
- ThuModerate (60)
- FriModerate (70)
Lawton, OK reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.
Sun & moon
Nearby
Forecasters' discussion
From the National Weather Service office in OUN, issued 3 hrs ago
Key Messages
Updated at 1039 PM CDT Tue Oct 20 2026
- Warming trend this week.
- Isolated light showers through early Wednesday.
- Higher rain chances return this weekend and continue into early next week.
Near Term
(Rest of today and tonight) Issued at 155 PM CDT Tue Oct 20 2026
Isolated high-based showers continue across the area, but the precipitation observed on radar is still having to fight low-level dry air acting to evaporate the rain, so much of this is virga. So far, no mesonet stations have recorded measurable precipitation. There is a shortwave moving into the area, so there will be continued support into the evening and overnight hours. With the low-level dry air, the expectation is that there will still be a lot of evaporation so probability of measurable precipitation is still rather low at any specific location. Will keep POPs below 20 percent, but include the mention of isolated showers.
Short Term
(Wednesday through Thursday night) Issued at 155 PM CDT Tue Oct 20 2026
Some of the isolated showers may linger a little past sunrise across northern Oklahoma before diminishing. After this shortwave shifts east of the area Wednesday morning, the upper ridge across western Texas will build north into the southern and central High Plains which will dominate the weather pattern for the area mid- week. Temperatures will warm Wednesday and Thursday with no precipitation expected at all through Thursday thanks to this ridge.
Long Term
(Friday through Monday) Issued at 151 AM CDT Tue Oct 20 2026
The upper ridge will gradually shift east late this week into the weekend as the upper trough continues to slowly approach and eventually move across the Plains. Models diverge on the timing/evolution of this trough over the weekend into next week. However, right now it looks like the trough will bring a chance for some more rain and maybe some storms over the weekend into early next week. Currently, rainfall totals do not look as high (3+ inches) as what occurred in some areas with the last couple of rain events but some locations, primarily in western parts of the fa, might see as much as an 1 to 1.5 inches. The uncertainties of the timing/evolution of this system will have an impact on when/where rain chances will occur which could also have an impact on amounts so will have to wait and see how things come together.
Temperatures are expected to remain near or above average for late October over the weekend into early next week although with maybe a slight cool down early next week.
Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Conservative index and reflects what the press published. Terms of use.