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

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

Franklin County Airport (K18A)

Lat: 34.34°NLon: 83.13°WElev: 890ft.

Fair

82°F

28°C

Humidity 65%
Wind Speed Calm
Barometer 30.07 in
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 18 Sep 8:35 pm EDT
Extended Forecast for

3 Miles ESE Hartwell GA

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms, mainly between midnight and 2am. Partly cloudy, with a low around 72. Calm wind.

    Low: 72 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: Increasing clouds, with a high near 92. Calm wind becoming northeast around 6 mph in the morning.

    High: 92 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: A 50 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 70. East northeast wind 3 to 6 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 88. Light and variable wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Partly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 91.

    High: 91 °F

    Sunny then
    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.

    Low: 70 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 60%.

    High: 84 °F

    Chance
    Showers then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.

    Low: 68 °F

    Showers
    Likely

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms, mainly between midnight and 2am. Partly cloudy, with a low around 72. Calm wind.
Saturday
Increasing clouds, with a high near 92. Calm wind becoming northeast around 6 mph in the morning.
Saturday Night
A 50 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 70. East northeast wind 3 to 6 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 88. Light and variable wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 70. Calm wind.
Monday
A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 91.
Monday Night
A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.
Wednesday
A 40 percent chance of showers after 2pm. Partly sunny, with a high near 79.
Wednesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 64.
Thursday
Mostly sunny, with a high near 79.
Thursday Night
Partly cloudy, with a low around 62.
Friday
Mostly sunny, with a high near 79.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Hartwell GA
 34.33°N 82.87°W (Elev. 699 ft)
Last Update:
7:19 pm EDT Sep 18, 2026
Forecast Valid:
8pm EDT Sep 18, 2026-6pm EDT Sep 25, 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