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. Cloudy, with a low around 57. Southwest wind around 13 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 57 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely, mainly before 9am. Mostly cloudy, then gradually becoming sunny, with a high near 70. Breezy, with a southwest wind 16 to 21 mph becoming northwest in the afternoon. 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: Increasing clouds, with a low around 44. Northwest wind 8 to 17 mph.

    Low: 44 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Increasing clouds, with a high near 64. Northwest wind 11 to 13 mph.

    High: 64 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 43. Northwest wind around 6 mph becoming calm in the evening.

    Low: 43 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of showers after 2am. Mostly cloudy, with a low around 56. Chance of precipitation is 50%.

    Low: 56 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: 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

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.

    Low: 62 °F

    Showers
    Likely

Detailed Forecast

Overnight
Showers likely. Cloudy, with a low around 57. Southwest wind around 13 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Showers likely, mainly before 9am. Mostly cloudy, then gradually becoming sunny, with a high near 70. Breezy, with a southwest wind 16 to 21 mph becoming northwest in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Increasing clouds, with a low around 44. Northwest wind 8 to 17 mph.
Thursday
Increasing clouds, with a high near 64. Northwest wind 11 to 13 mph.
Thursday Night
Partly cloudy, with a low around 43. Northwest wind around 6 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 71.
Friday Night
A chance of showers after 2am. Mostly cloudy, with a low around 56. Chance of precipitation is 50%.
Saturday
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%.
Saturday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.
Sunday
Mostly sunny, with a high near 89.
Sunday Night
Partly cloudy, with a low around 66.
Monday
Sunny, with a high near 92.
Monday Night
Partly cloudy, with a low around 68.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 92. Breezy. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Williamsport OH
 39.59°N 83.13°W (Elev. 781 ft)
Last Update:
4:00 am EDT May 13, 2026
Forecast Valid:
4am 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