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Westminster, OH Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Westminster, a community in Allen County, Ohio.

This Afternoon
77°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy, with a high near 77. South wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.

7-day forecast for Westminster

WhenTempForecastWindPrecip
This Afternoon 77°F Chance Showers And Thunderstorms 5 mph S 45%
Tonight 66°F Chance Showers And Thunderstorms then Showers And Thunderstorms Likely 5 to 10 mph S 68%
Sunday 77°F Showers And Thunderstorms 5 to 15 mph W 76%
Sunday Night 55°F Showers And Thunderstorms Likely 10 to 15 mph NE 67%
Monday 67°F Chance Rain Showers 15 mph NE 44%
Monday Night 52°F Slight Chance Rain Showers 15 mph NE 15%
Tuesday 66°F Mostly Cloudy then Slight Chance Rain Showers 15 mph NE 23%
Tuesday Night 54°F Chance Rain Showers 10 to 15 mph NE 39%
Wednesday 67°F Showers And Thunderstorms Likely 15 mph E 58%
Wednesday Night 53°F Showers And Thunderstorms Likely 10 to 15 mph E 58%
Thursday 68°F Chance Rain Showers 10 mph E 25%
Thursday Night 52°F Mostly Cloudy 5 to 10 mph NE 14%
Friday 70°F Mostly Sunny 5 to 10 mph NE 8%
Friday Night 50°F Partly Cloudy 5 to 10 mph NE 8%

Forecast source: National Weather Service (api.weather.gov) for Westminster (40.701, -83.975). Updated through the day.

Growing snapshot for Westminster

Last spring frost
Apr 22
First fall frost
Oct 22
Growing season
181 days
Hardiness zone
6a

More local growing data for Westminster: nearby ZIP 45850 weather · frost dates · planting calendar · Ohio frost dates

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Climate data from the nearest NOAA station, Lima Allen Co Ap, Oh (5.7 mi from Westminster). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.