Severe Thunderstorms and Heavy Rain Across the Ohio Valley;

Severe thunderstorms with damaging wind gusts will be possible from the mid-Mississippi Valley into parts of the Ohio Valley and central Appalachians. Heavy rain associated with these storms may lead to considerable flash and urban flooding impacts across portions of the Ohio Valley. Mid-summer heat persists from the Central Plains to the Southeast. Read More >

Current conditions at

Chillicothe, Chillicothe Agri-Science Center (KCDJ)

Lat: 39.82° N Lon: 93.58° W Elev: 768 ft.

91°F

33°C

Humidity 64%
Wind Speed S 12 G 18 mph
Barometer 29.85 in (1009.1 mb)
Dewpoint 77°F (25°C)
Visibility NA
Heat Index105°F (41°C)
Last update 11 Aug 5:51 pm CDT
Detailed forecast for

Linn County

This Afternoon
Mostly sunny. Highs in the lower 90s. Southwest winds 10 to 15 mph. Heat index values up to 104.
Tonight
Partly cloudy. Lows in the mid 70s. South winds 5 to 10 mph. Heat index values up to 104 early in the evening.
Wednesday
Mostly sunny. A chance of showers and thunderstorms, mainly in the morning. Highs in the lower 90s. South winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 30 percent. Heat index values up to 102.
Wednesday Night
Partly cloudy in the evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Lows in the mid 70s. Southeast winds 5 to 10 mph. Chance of rain 50 percent.
Thursday
Partly sunny. Highs in the lower 90s. South winds 5 to 10 mph. Heat index values up to 103 in the afternoon.
Thursday Night
Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers and thunderstorms. Lows in the lower 70s. Chance of rain 50 percent. Heat index values up to 100 early in the evening.
Friday
Partly sunny. Highs in the lower 90s.
Friday Night And Saturday
Partly cloudy. Lows in the mid 70s. Highs in the lower 90s.
Saturday Night
Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 70s.
Sunday
Mostly sunny. Highs in the upper 80s.
Sunday Night
Mostly cloudy. Lows in the upper 60s.
Monday
Mostly sunny. Highs in the mid 80s.



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144 PM CDT Tue Aug 11 2026
 
 

Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database