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

Record Heat for the Intermountain West and Northern Plains; Heavy Rainfall and Severe Weather Threats

Record setting heat is expected over the next several days from the Intermountain West through the northern Plains. Furthermore, fire weather concerns increase with dry and breezy conditions. Meanwhile, heavy rainfall and severe thunderstorm threats for the Ohio/Tennessee Valleys, central Appalachians and Southeast today. The threat shifts to central Gulf Coast and across central Texas this week. Read More >

Current conditions at

Chillicothe Ross County Airport (KRZT)

Lat: 39.44°NLon: 83.02°WElev: 725ft.

Mostly Cloudy

79°F

26°C

Humidity 70%
Wind Speed NE 12 mph
Barometer 30.11 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 12 Jul 3:55 pm EDT
Extended Forecast for

Williamsport OH

  • This Afternoon

    This Afternoon: A slight chance of showers. Mostly sunny, with a high near 85. Northeast wind around 9 mph. Chance of precipitation is 20%.

    High: 85 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A slight chance of showers before 9pm. Partly cloudy, with a low around 67. Northeast wind 3 to 7 mph. Chance of precipitation is 20%.

    Low: 67 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 87. East wind 5 to 8 mph.

    High: 87 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 66. East wind around 5 mph becoming calm in the evening.

    Low: 66 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 89. Calm wind.

    High: 89 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 68.

    Low: 68 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 92.

    High: 92 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 72.

    Low: 72 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

Detailed Forecast

This Afternoon
A slight chance of showers. Mostly sunny, with a high near 85. Northeast wind around 9 mph. Chance of precipitation is 20%.
Tonight
A slight chance of showers before 9pm. Partly cloudy, with a low around 67. Northeast wind 3 to 7 mph. Chance of precipitation is 20%.
Monday
Sunny, with a high near 87. East wind 5 to 8 mph.
Monday Night
Mostly clear, with a low around 66. East wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 89. Calm wind.
Tuesday Night
Clear, with a low around 68.
Wednesday
Sunny, with a high near 92.
Wednesday Night
Mostly clear, with a low around 72.
Thursday
Sunny, with a high near 91.
Thursday Night
Mostly clear, with a low around 70.
Friday
Mostly sunny, with a high near 90.
Friday Night
Partly cloudy, with a low around 69.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 88. Chance of precipitation is 40%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.
Sunday
Partly sunny, with a high near 87.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Williamsport OH
 39.59°N 83.13°W (Elev. 781 ft)
Last Update:
4:00 pm EDT Jul 12, 2026
Forecast Valid:
4pm EDT Jul 12, 2026-6pm EDT Jul 19, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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