Ohio · NWS ILN office

Westerville, OH weather

It is 50°F and clear at Columbus, Ohio State University Airport as of Oct 28, 5:05 AM EDT. Overnight: Mostly Cloudy, low near 49°F. Forecast from the National Weather Service, issued Oct 28, 4:00 AM EDT.

Updated Oct 28, 5:23 AM EDT (snapshot)

Current conditions

Temperature

50°F

Clear

Wind

Calm

Humidity 87% · dew point 46°F

Pressure · visibility

30.27 inHg

Visibility 9 mi

Observed at Columbus, Ohio State University Airport (KOSU), Oct 28, 5:05 AM EDT. Station readings can lag or be missing.

Alerts for this area

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

Around the NWS ILN forecast area

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

From the alert snapshot of Oct 28, 2026, 5:12 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 Westerville (local time)
TimeTempForecastPrecip. chanceWind
Wed 5 AM51°FMostly Cloudy0%E 2 mph
Wed 6 AM51°FMostly Cloudy0%SE 2 mph
Wed 7 AM50°FMostly Cloudy0%SE 2 mph
Wed 8 AM50°FPartly Sunny0%SE 2 mph
Wed 9 AM52°FMostly Sunny0%S 3 mph
Wed 10 AM57°FMostly Sunny0%S 2 mph
Wed 11 AM62°FSunny0%S 3 mph
Wed 12 PM66°FSunny1%S 3 mph
Wed 1 PM69°FSunny1%S 5 mph
Wed 2 PM72°FSunny1%S 5 mph
Wed 3 PM73°FSunny1%SW 5 mph
Wed 4 PM73°FSunny1%S 5 mph
Wed 5 PM74°FSunny1%S 5 mph
Wed 6 PM71°FClear1%S 3 mph
Wed 7 PM67°FClear0%SE 3 mph
Wed 8 PM64°FMostly Clear0%SE 3 mph
Wed 9 PM59°FMostly Clear0%SE 3 mph
Wed 10 PM57°FMostly Clear0%S 3 mph
Wed 11 PM56°FMostly Clear0%S 3 mph
Thu 12 AM55°FMostly Clear0%S 3 mph
Thu 1 AM53°FClear0%S 3 mph
Thu 2 AM52°FClear0%S 3 mph
Thu 3 AM52°FClear0%S 3 mph
Thu 4 AM51°FClear0%S 3 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 Westerville can differ.

7-day forecast

Overnight

Low 49°F

Mostly cloudy, with a low around 49. East wind around 2 mph.

Wednesday

High 75°F·Low 49°F

Mostly sunny, with a high near 75. South wind around 5 mph.

Wednesday Night: Clear, with a low around 49. South wind around 3 mph.

Thursday

High 76°F·Low 51°F

Sunny, with a high near 76. South wind 3 to 12 mph.

Thursday Night: Mostly clear, with a low around 51. West wind 3 to 9 mph.

Friday

High 70°F·Low 47°F

Sunny, with a high near 70.

Friday Night: Mostly cloudy, with a low around 47.

Saturday

High 69°F·Low 51°F

Mostly cloudy, with a high near 69.

Saturday Night: Mostly cloudy, with a low around 51.

Sunday

High 70°F·Low 53°F

A chance of rain after 7am. Mostly cloudy, with a high near 70. Chance of precipitation is 30%.

Sunday Night: A chance of rain. Mostly cloudy, with a low around 53. Chance of precipitation is 40%.

Monday

High 70°F·Low 54°F

A chance of rain. Mostly cloudy, with a high near 70. Chance of precipitation is 40%.

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

Tuesday

High 70°F

Rain likely. Mostly cloudy, with a high near 70.

Nearby cities

Larger cities in the area

Other cities in Franklin County

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

About this forecast

Forecast office
Westerville is served by the National Weather Service ILN forecast office, forecast zone OHZ055, county zone OHC049.
Location used
The Census Bureau's internal point for Westerville (40.1234, -82.9133), in Franklin County. Population: 38,612 (2024 estimate), number 35 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/40.1234,-82.9133 (forecast issued Oct 28, 4:00 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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