North Star, OH Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for North Star, a village in Darke County, Ohio.

Overnight

62°F

Light Rain Likely

Rain likely. Cloudy, with a low around 62. South wind around 17 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.

7-day forecast for North Star

When	Temp	Forecast	Wind	Precip
Overnight	62°F	Light Rain Likely	17 mph S	73%
Wednesday	66°F	Light Rain	13 to 20 mph S	98%
Wednesday Night	49°F	Slight Chance Light Rain then Mostly Cloudy	7 to 10 mph SW	19%
Thursday	61°F	Partly Sunny	8 to 16 mph SW	1%
Thursday Night	45°F	Mostly Cloudy	3 to 8 mph SW	9%
Friday	55°F	Chance Light Rain	5 to 12 mph W	39%
Friday Night	37°F	Chance Light Rain then Mostly Cloudy	7 to 10 mph NW	39%
Saturday	52°F	Partly Sunny	7 to 10 mph NW	2%
Saturday Night	33°F	Partly Cloudy	6 mph W	2%
Sunday	56°F	Sunny	3 to 12 mph W	3%
Sunday Night	33°F	Mostly Clear	5 to 8 mph W	4%
Monday	58°F	Sunny	5 to 9 mph W	3%
Monday Night	38°F	Mostly Clear	7 mph SW	1%
Tuesday	62°F	Sunny	7 to 10 mph W	1%

Forecast source: National Weather Service (api.weather.gov) for North Star (40.324, -84.569). Updated through the day.

Growing snapshot for North Star

Last spring frost

Apr 21

First fall frost

Oct 20

Growing season

180 days

Hardiness zone

More local growing data for North Star: nearby ZIP 45350 weather · frost dates · planting calendar · Ohio frost dates

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Climate data from the nearest NOAA station, Greenville Wtp, Oh (15.8 mi from North Star). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.