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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Williamsport OH

  • Overnight

    Overnight: Showers likely, mainly after 5am. Mostly cloudy, with a low around 57. Southwest wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 57 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely, mainly before 2pm. Partly sunny, with a high near 70. Breezy, with a southwest wind 17 to 21 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 70 °F

    Showers
    Likely then
    Chance
    Showers and
    Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 44. Northwest wind 8 to 18 mph, with gusts as high as 31 mph.

    Low: 44 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 64. Northwest wind around 14 mph.

    High: 64 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 43. North wind around 5 mph becoming calm in the evening.

    Low: 43 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 71.

    High: 71 °F

    Partly Sunny

  • Friday Night

    Friday Night: A chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 40%.

    Low: 57 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms before 8am, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 50%.

    High: 86 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.

    Low: 62 °F

    Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Overnight
Showers likely, mainly after 5am. Mostly cloudy, with a low around 57. Southwest wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Showers likely, mainly before 2pm. Partly sunny, with a high near 70. Breezy, with a southwest wind 17 to 21 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Partly cloudy, with a low around 44. Northwest wind 8 to 18 mph, with gusts as high as 31 mph.
Thursday
Mostly sunny, with a high near 64. Northwest wind around 14 mph.
Thursday Night
Mostly clear, with a low around 43. North wind around 5 mph becoming calm in the evening.
Friday
Partly sunny, with a high near 71.
Friday Night
A chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 40%.
Saturday
A chance of showers and thunderstorms before 8am, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 50%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.
Sunday
Mostly sunny, with a high near 88.
Sunday Night
Partly cloudy, with a low around 67.
Monday
Sunny, with a high near 92.
Monday Night
Partly cloudy, with a low around 69.
Tuesday
A chance of showers. Partly sunny, with a high near 90. Chance of precipitation is 50%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Williamsport OH
 39.57°N 83.13°W (Elev. 784 ft)
Last Update:
6:41 pm EDT May 12, 2026
Forecast Valid:
1am EDT May 13, 2026-6pm EDT May 19, 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