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

Ponca City, Ponca City Municipal Airport (KPNC)

Lat: 36.73°NLon: 97.1°WElev: 1007ft.

Mostly Cloudy

90°F

32°C

Humidity 56%
Wind Speed S 12 G 24 mph
Barometer 29.89 in (1010.8 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index98°F (37°C)
Last update 17 Aug 6:53 pm CDT
Extended Forecast for

10 Miles WNW Ralston OK

Heat Advisory until August 17, 08:00pm
Heat Advisory August 18, 12:00pm until August 18, 08:00pm
Click here for hazard details and duration
...
Heat Advisory
  •  
    Heat Advisory until August 17, 08:00pm

    NOW until 8:00pm Sun

    Heat Advisory

  • Tonight

    Low: 75 °F

    Mostly Clear

  • Monday

    Monday: A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm.  Sunny, with a high near 98. Heat index values as high as 105. South wind 5 to 10 mph.  Chance of precipitation is 20%.

    High: 98 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A slight chance of thunderstorms before 7pm.  Mostly clear, with a low around 75. South wind 5 to 10 mph.  Chance of precipitation is 10%.

    Low: 75 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 96. Heat index values as high as 103. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 96 °F

    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am.  Partly cloudy, with a low around 72. East wind around 5 mph becoming calm  in the evening.

    Low: 72 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly before 1pm.  Mostly sunny, with a high near 92. Northeast wind 5 to 10 mph.

    High: 92 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 70. Northeast wind 5 to 10 mph.

    Low: 70 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 90. Northeast wind 5 to 10 mph.

    High: 90 °F

    Sunny

Detailed Forecast

Tonight
Mostly clear, with a low around 75. South wind 5 to 10 mph.
Monday
A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Sunny, with a high near 98. Heat index values as high as 105. South wind 5 to 10 mph. Chance of precipitation is 20%.
Monday Night
A slight chance of thunderstorms before 7pm. Mostly clear, with a low around 75. South wind 5 to 10 mph. Chance of precipitation is 10%.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 96. Heat index values as high as 103. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 72. East wind around 5 mph becoming calm in the evening.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 92. Northeast wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 70. Northeast wind 5 to 10 mph.
Thursday
Sunny, with a high near 90. Northeast wind 5 to 10 mph.
Thursday Night
Clear, with a low around 65. Northeast wind 5 to 10 mph.
Friday
Sunny, with a high near 92. Northeast wind around 5 mph.
Friday Night
Mostly clear, with a low around 66. East wind around 5 mph.
Saturday
Sunny, with a high near 90. Northeast wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around 65. Northeast wind 5 to 10 mph.
Sunday
Mostly sunny, with a high near 87. Northeast wind 5 to 10 mph.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles WNW Ralston OK
 36.54°N 96.89°W
6:50 pm CDT Aug 17, 2025
7pm CDT Aug 17, 2025-6pm CDT Aug 24, 2025
 
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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