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

68°F

20°C

Humidity 83%
Wind Speed Calm
Barometer 30.11 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 19 May 4:55 am EDT
Extended Forecast for

Chillicothe OH

  • Today

    Today: A slight chance of showers and thunderstorms between 2pm and 5pm. Mostly sunny, with a high near 90. Southwest wind 5 to 15 mph. Chance of precipitation is 20%.

    High: 90 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 2am, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 66. Southwest wind 5 to 9 mph becoming light after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm, mainly before noon, then a chance of showers and thunderstorms after noon. High near 76. Light and variable wind becoming north 5 to 9 mph in the morning. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 76 °F

    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 49. Northeast wind around 8 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 49 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers. Partly sunny, with a high near 72. Northeast wind around 7 mph. Chance of precipitation is 20%.

    High: 72 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 56. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 56 °F

    Partly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Showers, with thunderstorms also possible after 2pm. High near 74. Chance of precipitation is 100%.

    High: 74 °F

    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 63. Chance of precipitation is 100%.

    Low: 63 °F

    Showers

  • Saturday

    Saturday: Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 79. Chance of precipitation is 70%.

    High: 79 °F

    Showers
    Likely

Detailed Forecast

Today
A slight chance of showers and thunderstorms between 2pm and 5pm. Mostly sunny, with a high near 90. Southwest wind 5 to 15 mph. Chance of precipitation is 20%.
Tonight
Showers and thunderstorms likely, mainly before 2am, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 66. Southwest wind 5 to 9 mph becoming light after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers and possibly a thunderstorm, mainly before noon, then a chance of showers and thunderstorms after noon. High near 76. Light and variable wind becoming north 5 to 9 mph in the morning. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 49. Northeast wind around 8 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A slight chance of showers. Partly sunny, with a high near 72. Northeast wind around 7 mph. Chance of precipitation is 20%.
Thursday Night
A chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 56. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Showers, with thunderstorms also possible after 2pm. High near 74. Chance of precipitation is 100%.
Friday Night
Showers and possibly a thunderstorm. Low around 63. Chance of precipitation is 100%.
Saturday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 79. Chance of precipitation is 70%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 50%.
Sunday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 82. Chance of precipitation is 40%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 30%.
Memorial Day
A chance of showers and thunderstorms. Mostly cloudy, with a high near 83. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Chillicothe OH
 39.34°N 82.99°W (Elev. 656 ft)
Last Update:
4:00 am EDT May 19, 2026
Forecast Valid:
5am EDT May 19, 2026-6pm EDT May 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