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.

Mostly Cloudy

77°F

25°C

Humidity 82%
Wind Speed NW 5 mph
Barometer 30.28 in (1024.8 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 16 Sep 9:53 pm EDT
Extended Forecast for

Westerville OH

Flood Watch September 17, 12:00am until September 17, 02:00pm
Click here for hazard details and duration
Flood Watch

  • Tonight

    Tonight: A chance of showers and thunderstorms before 2am, then a slight chance of showers after 3am. Mostly cloudy, with a low around 71. Light and variable wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms before 3pm, then a slight chance of showers between 3pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 86. West wind 5 to 8 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.

    High: 86 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 68. North wind 5 to 7 mph.

    Low: 68 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 79. Northeast wind around 8 mph.

    High: 79 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 60. Northeast wind 6 to 8 mph.

    Low: 60 °F

    Mostly Clear

  • Saturday

    Saturday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 84. Chance of precipitation is 20%.

    High: 84 °F

    Sunny then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm between 8pm and 2am, then showers likely after 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.

    Low: 69 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers likely. Mostly cloudy, with a high near 82. Chance of precipitation is 70%.

    High: 82 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers. Mostly cloudy, with a low around 63. Chance of precipitation is 40%.

    Low: 63 °F

    Chance
    Showers

Detailed Forecast

Tonight
A chance of showers and thunderstorms before 2am, then a slight chance of showers after 3am. Mostly cloudy, with a low around 71. Light and variable wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers and thunderstorms before 3pm, then a slight chance of showers between 3pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 86. West wind 5 to 8 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
Mostly cloudy, with a low around 68. North wind 5 to 7 mph.
Friday
Partly sunny, with a high near 79. Northeast wind around 8 mph.
Friday Night
Mostly clear, with a low around 60. Northeast wind 6 to 8 mph.
Saturday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 84. Chance of precipitation is 20%.
Saturday Night
Showers likely and possibly a thunderstorm between 8pm and 2am, then showers likely after 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.
Sunday
Showers likely. Mostly cloudy, with a high near 82. Chance of precipitation is 70%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 63. Chance of precipitation is 40%.
Monday
A chance of showers after 2pm. Mostly cloudy, with a high near 80. Chance of precipitation is 30%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 63. Chance of precipitation is 30%.
Tuesday
A chance of showers. Partly sunny, with a high near 79. Chance of precipitation is 40%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 63. Chance of precipitation is 30%.
Wednesday
A chance of showers. Partly sunny, with a high near 79. 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:
6:49 pm EDT Sep 16, 2026
Forecast Valid:
10pm EDT Sep 16, 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