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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| 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
Nearby towns & communities
Austintown
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Campbell
Canfield
Craig Beach
Damascus
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Lake Milton
Lowellville
Maple Ridge
Mineral Ridge
New Middletown
New Springfield
North Lima
Petersburg
Poland
Sebring
Struthers
Woodworth
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.