Ohio · NWS ILN office

Chillicothe, OH weather

It is 45°F and clear at Chillicothe Ross County Airport as of Oct 28, 7:55 AM EDT. Today: Mostly Sunny, high near 77°F, 1% chance of precipitation. Forecast from the National Weather Service, issued Oct 28, 6:19 AM EDT.

Updated Oct 28, 8:31 AM EDT (snapshot)

Current conditions

Temperature

45°F

Clear

Wind

Calm

Humidity 100% · dew point 45°F

Pressure · visibility

30.31 inHg

Visibility 10 mi

Observed at Chillicothe Ross County Airport (KRZT), Oct 28, 7:55 AM EDT. Station readings can lag or be missing.

Alerts for this area

No active NWS alerts cover the Chillicothe forecast zone right now.

Around the NWS ILN forecast area

No active alerts in zones served by the ILN office near Chillicothe.

From the alert snapshot of Oct 28, 2026, 8:14 AM EDT. No alerts are active anywhere in Ohio.

For official warnings, check weather.gov and your local authorities. OpenForecast repeats National Weather Service alerts and may be delayed or incomplete. Follow instructions from emergency officials.

Next 24 hours

Hourly forecast for Chillicothe (local time)
TimeTempForecastPrecip. chanceWind
Wed 8 AM47°FMostly Cloudy1% 0 mph
Wed 9 AM49°FMostly Cloudy1%S 1 mph
Wed 10 AM55°FPartly Sunny1%SE 1 mph
Wed 11 AM61°FSunny1%S 1 mph
Wed 12 PM66°FSunny1%S 1 mph
Wed 1 PM72°FSunny0%S 2 mph
Wed 2 PM74°FSunny1%S 2 mph
Wed 3 PM75°FSunny1%S 2 mph
Wed 4 PM77°FSunny1%S 2 mph
Wed 5 PM75°FSunny1%S 2 mph
Wed 6 PM73°FClear1%S 1 mph
Wed 7 PM68°FClear1%S 1 mph
Wed 8 PM60°FClear2%SE 1 mph
Wed 9 PM57°FClear2% 0 mph
Wed 10 PM55°FClear2%SE 1 mph
Wed 11 PM54°FClear2%SE 1 mph
Thu 12 AM52°FClear1%SE 1 mph
Thu 1 AM51°FClear1%SE 1 mph
Thu 2 AM50°FClear1%SE 1 mph
Thu 3 AM50°FClear1%S 1 mph
Thu 4 AM49°FClear0%S 1 mph
Thu 5 AM47°FClear0%S 1 mph
Thu 6 AM47°FSunny1%S 1 mph
Thu 7 AM47°FSunny1%SE 1 mph

Hourly values come from the NWS gridded forecast for the 2.5 km grid square that covers the city's center point. Conditions elsewhere in Chillicothe can differ.

7-day forecast

Today

High 77°F·Low 46°F

Mostly sunny, with a high near 77. South wind around 2 mph.

Tonight: Clear, with a low around 46. Southeast wind around 1 mph.

Thursday

High 77°F·Low 52°F

Sunny, with a high near 77. South wind 1 to 7 mph.

Thursday Night: Mostly clear, with a low around 52. Southwest wind 1 to 5 mph.

Friday

High 73°F·Low 46°F

Sunny, with a high near 73. North wind around 3 mph.

Friday Night: Partly cloudy, with a low around 46.

Saturday

High 71°F·Low 51°F

Mostly cloudy, with a high near 71.

Saturday Night: A slight chance of rain after 1am. Mostly cloudy, with a low around 51.

Sunday

High 71°F·Low 52°F

A chance of rain. Mostly cloudy, with a high near 71. Chance of precipitation is 30%.

Sunday Night: A chance of rain. Mostly cloudy, with a low around 52. Chance of precipitation is 50%.

Monday

High 71°F·Low 54°F

A chance of rain. Mostly cloudy, with a high near 71. Chance of precipitation is 50%.

Monday Night: A chance of rain. Mostly cloudy, with a low around 54. Chance of precipitation is 40%.

Tuesday

High 72°F·Low 53°F

Rain likely. Mostly cloudy, with a high near 72. Chance of precipitation is 60%.

Tuesday Night: Rain likely. Mostly cloudy, with a low around 53.

Nearby cities

Larger cities in the area

See every city we cover in Ohio, or check all active alerts.

About this forecast

Forecast office
Chillicothe is served by the National Weather Service ILN forecast office, forecast zone OHZ073, county zone OHC141.
Location used
The Census Bureau's internal point for Chillicothe (39.3405, -82.9961), in Ross County. Population: 21,769 (2024 estimate), number 77 of the 86 Ohio cities on this site.
Radar
Nearest NWS radar: KILN. View it on radar.weather.gov.

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Sources

  • Forecast, hourly forecast, observations and alerts: National Weather Service API, api.weather.gov/points/39.3405,-82.9961 (forecast issued Oct 28, 6:19 AM EDT).
  • Official forecast page: forecast.weather.gov.
  • City location and population: U.S. Census Bureau, Vintage 2024 population estimates and 2024 Gazetteer files.
  • Snapshot taken Oct 28, 2026. The NWS and Census Bureau do not endorse OpenForecast.

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