Ohio · NWS ILN office

Mason, OH weather

It is 55°F and mostly clear at Warren County Airport as of Oct 28, 4:35 AM EDT. Overnight: Mostly Cloudy, low near 47°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

55°F

Mostly Clear

Wind

SSE 3 mph

Humidity 77% · dew point 48°F

Pressure · visibility

30.25 inHg

Visibility 10 mi

Observed at Warren County Airport (KI68), Oct 28, 4:35 AM EDT. Station readings can lag or be missing.

Alerts for this area

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

Around the NWS ILN forecast area

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

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 Mason (local time)
TimeTempForecastPrecip. chanceWind
Wed 7 AM48°FPartly Sunny0%SE 1 mph
Wed 8 AM48°FMostly Sunny0%SE 1 mph
Wed 9 AM49°FSunny0%S 2 mph
Wed 10 AM56°FSunny0%S 1 mph
Wed 11 AM62°FSunny0%S 2 mph
Wed 12 PM67°FSunny0%SW 3 mph
Wed 1 PM71°FSunny0%SW 3 mph
Wed 2 PM73°FSunny1%SW 5 mph
Wed 3 PM73°FSunny1%SW 3 mph
Wed 4 PM75°FSunny1%SW 3 mph
Wed 5 PM73°FSunny1%SW 3 mph
Wed 6 PM72°FClear1%S 2 mph
Wed 7 PM68°FClear1%SE 1 mph
Wed 8 PM61°FClear1%SE 1 mph
Wed 9 PM59°FClear1%SE 1 mph
Wed 10 PM56°FClear1%S 1 mph
Wed 11 PM55°FClear1%S 2 mph
Thu 12 AM54°FClear1%S 2 mph
Thu 1 AM53°FClear1%S 1 mph
Thu 2 AM51°FClear1%S 2 mph
Thu 3 AM50°FClear1%S 2 mph
Thu 4 AM50°FClear1%S 2 mph
Thu 5 AM49°FClear1%S 2 mph
Thu 6 AM49°FSunny1%S 2 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 Mason can differ.

7-day forecast

Overnight

Low 47°F

Mostly cloudy, with a low around 47. Wind around 0 mph.

Wednesday

High 75°F·Low 48°F

Sunny, with a high near 75. South wind 1 to 5 mph.

Wednesday Night: Clear, with a low around 48. South wind around 2 mph.

Thursday

High 76°F·Low 52°F

Sunny, with a high near 76. Southwest wind 2 to 10 mph.

Thursday Night: Mostly clear, with a low around 52. West wind 2 to 7 mph.

Friday

High 73°F·Low 49°F

Sunny, with a high near 73.

Friday Night: Mostly cloudy, with a low around 49.

Saturday

High 70°F·Low 52°F

Mostly cloudy, with a high near 70.

Saturday Night: A slight chance of rain after 1am. Cloudy, with a low around 52.

Sunday

High 69°F·Low 53°F

A chance of rain. Mostly cloudy, with a high near 69. Chance of precipitation is 50%.

Sunday Night: A chance of rain. Mostly cloudy, with a low around 53. Chance of precipitation is 50%.

Monday

High 69°F·Low 55°F

A chance of rain. Mostly cloudy, with a high near 69. Chance of precipitation is 40%.

Monday Night: A chance of rain. Mostly cloudy, with a low around 55. Chance of precipitation is 50%.

Tuesday

High 70°F

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

Nearby cities

Larger cities in the area

Other cities in Warren County

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

About this forecast

Forecast office
Mason is served by the National Weather Service ILN forecast office, forecast zone OHZ071, county zone OHC165.
Location used
The Census Bureau's internal point for Mason (39.3607, -84.2959), in Warren County. Population: 36,046 (2024 estimate), number 38 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/39.3607,-84.2959 (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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