New Haven, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for New Haven, a community in Huron County, Ohio.
This Afternoon
74°F
Sunny
Sunny, with a high near 74. Northeast wind around 10 mph.
7-day forecast for New Haven
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 74°F | Sunny | 10 mph NE | 0% |
| Tonight | 56°F | Partly Cloudy | 2 to 9 mph NE | 1% |
| Saturday | 78°F | Chance Rain Showers | 5 mph SE | 45% |
| Saturday Night | 65°F | Showers And Thunderstorms | 7 mph S | 77% |
| Sunday | 76°F | Showers And Thunderstorms | 6 to 12 mph NW | 91% |
| Sunday Night | 57°F | Rain Showers Likely | 12 mph NE | 63% |
| Monday | 68°F | Chance Rain Showers | 10 to 15 mph NE | 38% |
| Monday Night | 54°F | Chance Rain Showers | 10 to 16 mph NE | 39% |
| Tuesday | 68°F | Chance Rain Showers | 14 mph NE | 39% |
| Tuesday Night | 55°F | Rain Showers Likely | 14 mph NE | 55% |
| Wednesday | 68°F | Rain Showers Likely | 14 mph E | 55% |
| Wednesday Night | 54°F | Chance Rain Showers | 7 to 12 mph E | 54% |
| Thursday | 69°F | Chance Rain Showers | 9 mph NE | 27% |
| Thursday Night | 54°F | Slight Chance Rain Showers | 3 to 9 mph N | 20% |
Forecast source: National Weather Service (api.weather.gov) for New Haven (41.029, -82.687). Updated through the day.
Growing snapshot for New Haven
Last spring frost
Apr 25
First fall frost
Oct 25
Growing season
183 days
Hardiness zone
6a
More local growing data for New Haven: nearby ZIP 44850 weather · frost dates · planting calendar · Ohio frost dates
Nearby towns & communities
Bellevue
Celeryville
Collins
Greenwich
Holiday Lakes
Monroeville
New London
North Fairfield
Norwalk
Plymouth
Rochester
Wakeman
Willard
Climate data from the nearest NOAA station, Norwalk Wwtp, Oh (16.4 mi from New Haven). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.