National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Current conditions at

Duncan, Halliburton Field Airport (KDUC)

Lat: 34.47°NLon: 97.96°WElev: 1112ft.

Fair

75°F

24°C

Humidity 89%
Wind Speed E 7 mph
Barometer 29.98 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 18 Aug 5:15 am CDT
Extended Forecast for

2 Miles NNE Loco OK

  • Today

    Today: A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 96. Heat index values as high as 104. Southeast wind 6 to 8 mph becoming south southwest in the afternoon. Chance of precipitation is 20%.

    High: 96 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tonight

    Tonight: A slight chance of thunderstorms before 7pm. Mostly clear, with a low around 74. South southeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 10%.

    Low: 74 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: Mostly sunny and hot, with a high near 97. Heat index values as high as 103. Light and variable wind.

    High: 97 °F

    Hot

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 73. Light north northeast wind.

    Low: 73 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93. North northeast wind 3 to 7 mph.

    High: 93 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms. Mostly clear, with a low around 71. Chance of precipitation is 20%.

    Low: 71 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: A slight chance of showers, with thunderstorms also possible after 1pm. Sunny, with a high near 91. Chance of precipitation is 20%.

    High: 91 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 92.

    High: 92 °F

    Sunny

Detailed Forecast

Today
A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 96. Heat index values as high as 104. Southeast wind 6 to 8 mph becoming south southwest in the afternoon. Chance of precipitation is 20%.
Tonight
A slight chance of thunderstorms before 7pm. Mostly clear, with a low around 74. South southeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 10%.
Tuesday
Mostly sunny and hot, with a high near 97. Heat index values as high as 103. Light and variable wind.
Tuesday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 73. Light north northeast wind.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93. North northeast wind 3 to 7 mph.
Wednesday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 71. Chance of precipitation is 20%.
Thursday
A slight chance of showers, with thunderstorms also possible after 1pm. Sunny, with a high near 91. Chance of precipitation is 20%.
Thursday Night
Mostly clear, with a low around 69.
Friday
Sunny, with a high near 92.
Friday Night
Mostly clear, with a low around 69.
Saturday
Sunny, with a high near 92.
Saturday Night
Mostly clear, with a low around 69.
Sunday
Sunny, with a high near 90.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Loco OK
 34.35°N 97.66°W
Last Update:
5:06 am CDT Aug 18, 2025
Forecast Valid:
5am CDT Aug 18, 2025-6pm CDT Aug 24, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation