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

Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across much of northeast Texas into the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Saturday could bring areas of flooding across parts of the central Plains into the upper Midwest/Great Lakes, and Four Corners states. Read More >

Hazardous Weather Conditions

Current conditions at

Columbus, Ohio State University Airport (KOSU)

Lat: 40.08°NLon: 83.08°WElev: 902ft.

A Few Clouds

72°F

22°C

Humidity 94%
Wind Speed NW 7 mph
Barometer 30.24 in (1023.2 mb)
Dewpoint 70°F (21°C)
Visibility 9.00 mi
Last update 17 Sep 4:53 am EDT
Extended Forecast for

Westerville OH

Flood Watch September 17, 05:31am until September 17, 02:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch September 17, 05:31am until September 17, 02:00pm

    NOW until 2:00pm Thu

    Flood Watch

  • Today

    High: 86 °F

    Showers
    Likely

  • Tonight

    Tonight: A slight chance of showers and thunderstorms, then a chance of showers after 11pm. Mostly cloudy, with a low around 67. Northeast wind 3 to 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 67 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: Partly sunny, with a high near 80. Northeast wind 6 to 8 mph.

    High: 80 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 59. East wind 6 to 9 mph.

    Low: 59 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of showers after 2pm. Mostly sunny, with a high near 82. East wind around 6 mph becoming south in the afternoon. Chance of precipitation is 20%.

    High: 82 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 8pm. Mostly cloudy, with a low around 69. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 69 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 83. Chance of precipitation is 70%.

    High: 83 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.

    Low: 62 °F

    Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Today
Showers and thunderstorms likely, mainly before 2pm. Mostly cloudy, with a high near 86. Calm wind becoming northwest 5 to 8 mph in the morning. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
A slight chance of showers and thunderstorms, then a chance of showers after 11pm. Mostly cloudy, with a low around 67. Northeast wind 3 to 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Partly sunny, with a high near 80. Northeast wind 6 to 8 mph.
Friday Night
Partly cloudy, with a low around 59. East wind 6 to 9 mph.
Saturday
A slight chance of showers after 2pm. Mostly sunny, with a high near 82. East wind around 6 mph becoming south in the afternoon. Chance of precipitation is 20%.
Saturday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 8pm. Mostly cloudy, with a low around 69. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 83. Chance of precipitation is 70%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.
Monday
A chance of showers. Mostly cloudy, with a high near 77. Chance of precipitation is 40%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 60. Chance of precipitation is 40%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 77. Chance of precipitation is 40%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 77. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Westerville OH
 40.13°N 82.92°W (Elev. 876 ft)
Last Update:
4:00 am EDT Sep 17, 2026
Forecast Valid:
5am EDT Sep 17, 2026-6pm EDT Sep 23, 2026
 
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