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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.

Today
77°F
Showers And Thunderstorms Likely
A chance of rain showers before 2pm, then showers and thunderstorms likely between 2pm and 4pm, then a chance of showers and thunderstorms. Cloudy, with a high near 77. Southeast wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

7-day forecast for Westminster

WhenTempForecastWindPrecip
Today 77°F Showers And Thunderstorms Likely 5 mph SE 64%
Tonight 65°F Chance Showers And Thunderstorms then Showers And Thunderstorms Likely 5 to 10 mph S 66%
Sunday 76°F Showers And Thunderstorms 5 to 15 mph NW 75%
Sunday Night 55°F Showers And Thunderstorms Likely 15 mph NE 67%
Monday 66°F Chance Rain Showers 15 mph NE 49%
Monday Night 51°F Chance Rain Showers 15 to 20 mph NE 48%
Tuesday 65°F Mostly Cloudy then Slight Chance Rain Showers 15 to 20 mph NE 16%
Tuesday Night 53°F Chance Rain Showers 15 mph NE 53%
Wednesday 66°F Chance Showers And Thunderstorms 10 to 15 mph NE 53%
Wednesday Night 52°F Chance Rain Showers 5 to 15 mph NE 51%
Thursday 67°F Mostly Cloudy 5 to 10 mph NE 13%
Thursday Night 52°F Mostly Cloudy 5 to 10 mph NE 11%
Friday 69°F Mostly Sunny 5 to 10 mph NE 12%
Friday Night 50°F Partly Cloudy 5 to 10 mph NE 12%

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 19, 2026.