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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| 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
Nearby towns & communities
Beaverdam
Bluffton
Cairo
Cridersville
Delphos
Elida
Fort Shawnee
Gomer
Harrod
Lafayette
Lima
Spencerville
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.