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

Chillicothe Ross County Airport (KRZT)

Lat: 39.44°NLon: 83.02°WElev: 725ft.

Mostly Cloudy

72°F

22°C

Humidity 100%
Wind Speed Calm
Barometer 29.98 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 17 Aug 11:43 pm EDT
Extended Forecast for

Cynthiana OH

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 63. North wind 3 to 6 mph.

    Low: 63 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 79. North wind 3 to 7 mph.

    High: 79 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 60. Light and variable wind.

    Low: 60 °F

    Mostly Clear

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 80. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 20%.

    High: 80 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 8pm. Mostly cloudy, with a low around 63. Calm wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Showers
    Likely

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 79. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 79 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of thunderstorms before 8pm. Partly cloudy, with a low around 59. Chance of precipitation is 30%.

    Low: 59 °F

    Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 63. North wind 3 to 6 mph.
Tuesday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 79. North wind 3 to 7 mph.
Tuesday Night
Mostly clear, with a low around 60. Light and variable wind.
Wednesday
A slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 80. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 20%.
Wednesday Night
A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 8pm. Mostly cloudy, with a low around 63. Calm wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 79. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of thunderstorms before 8pm. Partly cloudy, with a low around 59. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 79.
Friday Night
Mostly clear, with a low around 59.
Saturday
A chance of showers after 2pm. Mostly sunny, with a high near 79. Chance of precipitation is 30%.
Saturday Night
A chance of showers. Partly cloudy, with a low around 59. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 77.
Sunday Night
Partly cloudy, with a low around 56.
Monday
Mostly sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Cynthiana OH
 39.16°N 83.35°W (Elev. 1086 ft)
Last Update:
6:34 pm EDT Aug 17, 2026
Forecast Valid:
11pm EDT Aug 17, 2026-6pm EDT Aug 24, 2026
 
Forecast Discussion
 
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Additional Resources

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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