45601 Weather (Chillicothe, OH)

Weather forecast for: Chillicothe OH

Last Update: 7:13 pm EDT Sep 4, 2026

Tonight: A chance of showers and thunderstorms, mainly after 3am. Partly cloudy, with a low around 71. Calm wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday: A chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 90. Heat index values as high as 100. Calm wind becoming northwest 5 to 7 mph in the afternoon. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday Night: A chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 62. North wind around 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Sunday: Sunny, with a high near 83. Northeast wind 5 to 9 mph.

Sunday Night: Mostly clear, with a low around 59. Northeast wind 3 to 6 mph.

Labor Day: Mostly sunny, with a high near 85.

Monday Night: Mostly clear, with a low around 62.

Tuesday: Mostly sunny, with a high near 89.

Tuesday Night: Partly cloudy, with a low around 67.

Wednesday: Mostly sunny, with a high near 93.

Wednesday Night: A chance of showers. Partly cloudy, with a low around 71. Chance of precipitation is 30%.

Thursday: A chance of showers. Partly sunny, with a high near 89. Chance of precipitation is 30%.

Thursday Night: Partly cloudy, with a low around 61.

Friday: Mostly sunny, with a high near 83.