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Youngstown, OH Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Youngstown, a city in Mahoning County, Ohio.

This Afternoon
77°F
Mostly Sunny
Mostly sunny, with a high near 77. North wind around 8 mph.

7-day forecast for Youngstown

WhenTempForecastWindPrecip
This Afternoon 77°F Mostly Sunny 8 mph N 0%
Tonight 57°F Partly Cloudy then Patchy Fog 2 to 8 mph NE 1%
Saturday 77°F Partly Sunny then Slight Chance Rain Showers 5 mph E 16%
Saturday Night 64°F Slight Chance Showers And Thunderstorms 5 mph SE 78%
Sunday 76°F Showers And Thunderstorms 3 to 8 mph W 91%
Sunday Night 57°F Rain Showers Likely 8 mph N 70%
Monday 69°F Mostly Cloudy then Slight Chance Rain Showers 6 to 9 mph NE 20%
Monday Night 55°F Chance Rain Showers 10 mph NE 48%
Tuesday 67°F Chance Rain Showers 12 mph E 48%
Tuesday Night 54°F Showers And Thunderstorms Likely 15 mph E 61%
Wednesday 65°F Rain Showers Likely 14 mph E 61%
Wednesday Night 53°F Showers And Thunderstorms Likely 9 to 14 mph E 57%
Thursday 66°F Chance Rain Showers 9 mph E 43%
Thursday Night 52°F Slight Chance Rain Showers 3 to 7 mph NE 17%

Forecast source: National Weather Service (api.weather.gov) for Youngstown (41.099, -80.646). Updated through the day.

Growing snapshot for Youngstown

Last spring frost
May 1
First fall frost
Oct 17
Growing season
167 days
Hardiness zone
6a

More local growing data for Youngstown: nearby ZIP 44503 weather · frost dates · planting calendar · Ohio frost dates

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Climate data from the nearest NOAA station, Youngstown Rgnl Ap, Oh (10.8 mi from Youngstown). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.