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

Fayette County Airport (KI23)

Lat: 39.57°NLon: 83.42°WElev: 980ft.

A Few Clouds

91°F

33°C

Humidity 49%
Wind Speed W 8 G 16 mph
Barometer 30.24 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 17 Sep 1:55 pm EDT
Extended Forecast for

South Salem OH

Flood Watch September 18, 12:00am until September 18, 12:00pm
Click here for hazard details and duration
Flood Watch

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms, mainly before 3pm. Mostly sunny, with a high near 89. Northwest wind around 9 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Chance
    T-storms

  • Tonight

    Tonight: A slight chance of showers and thunderstorms, then a chance of showers after midnight. Mostly cloudy, with a low around 68. Light northeast wind. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: Partly sunny, with a high near 82. Northeast wind 6 to 8 mph.

    High: 82 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 61. Northeast wind 3 to 8 mph.

    Low: 61 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of showers after 2pm. Mostly sunny, with a high near 85. Light and variable wind. Chance of precipitation is 20%.

    High: 85 °F

    Sunny then
    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 68. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 60%.

    High: 86 °F

    Partly Sunny
    then Showers
    Likely

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 64. Chance of precipitation is 60%.

    Low: 64 °F

    Showers
    Likely then
    Chance
    Showers

  • Monday

    Monday: Partly sunny, with a high near 80.

    High: 80 °F

    Partly Sunny

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms, mainly before 3pm. Mostly sunny, with a high near 89. Northwest wind around 9 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A slight chance of showers and thunderstorms, then a chance of showers after midnight. Mostly cloudy, with a low around 68. Light northeast wind. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Partly sunny, with a high near 82. Northeast wind 6 to 8 mph.
Friday Night
Partly cloudy, with a low around 61. Northeast wind 3 to 8 mph.
Saturday
A slight chance of showers after 2pm. Mostly sunny, with a high near 85. Light and variable wind. Chance of precipitation is 20%.
Saturday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 68. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 60%.
Sunday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 64. Chance of precipitation is 60%.
Monday
Partly sunny, with a high near 80.
Monday Night
A chance of showers. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 79. Chance of precipitation is 30%.
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 78. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Salem OH
 39.34°N 83.33°W (Elev. 899 ft)
Last Update:
6:44 am EDT Sep 17, 2026
Forecast Valid:
2pm 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