NWS Forecast for Mason OH

National Weather Service Forecast for: Mason OH
Issued by: National Weather Service Wilmington, OH

Updated: 2:36 am EDT Jun 30, 2026

Overnight Partly Cloudy	Tuesday Sunny	Tuesday Night Mostly Clear	Wednesday Sunny	Wednesday Night Clear	Thursday Sunny	Thursday Night Mostly Clear	Friday Chance T-storms	Friday Night Partly Cloudy
Lo 74 °F	Hi 93 °F	Lo 74 °F	Hi 96 °F	Lo 74 °F	Hi 95 °F	Lo 75 °F	Hi 92 °F	Lo 74 °F

Hazardous Weather Outlook
Extreme Heat Warning

Overnight	Partly cloudy, with a low around 74. Calm wind.
Tuesday	Sunny, with a high near 93. Heat index values as high as 106. Southwest wind 3 to 8 mph.
Tuesday Night	Mostly clear, with a low around 74. Southwest wind around 6 mph becoming calm in the evening.
Wednesday	Sunny, with a high near 96. Heat index values as high as 106. Calm wind becoming southwest around 6 mph in the afternoon.
Wednesday Night	Clear, with a low around 74. Calm wind.
Thursday	Sunny, with a high near 95.
Thursday Night	Mostly clear, with a low around 75.
Friday	A chance of showers and thunderstorms. Partly sunny, with a high near 92. Chance of precipitation is 30%.
Friday Night	Partly cloudy, with a low around 74.
Independence Day	A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 40%.
Saturday Night	A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Chance of precipitation is 30%.
Sunday	A chance of showers and thunderstorms. Partly sunny, with a high near 89. Chance of precipitation is 40%.
Sunday Night	A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Chance of precipitation is 30%.
Monday	A chance of showers and thunderstorms. Partly sunny, with a high near 87. Chance of precipitation is 40%.

Forecast from NOAA-NWS for Mason OH.