New Haven, OH Weather & Growing Conditions
Today
84°F
Sunny
Sunny, with a high near 84. East wind around 2 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Sunny | 2 mph E | 0% |
| Tonight | 62°F | Mostly Clear | 0 to 3 mph NE | 0% |
| Wednesday | 87°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph SW | 16% |
| Wednesday Night | 66°F | Partly Cloudy | 1 to 5 mph SW | 13% |
| Thursday | 86°F | Mostly Sunny then Chance Showers And Thunderstorms | 3 to 8 mph SW | 50% |
| Thursday Night | 66°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 2 to 6 mph SW | 58% |
| Friday | 84°F | Showers And Thunderstorms Likely | 3 to 8 mph SW | 62% |
| Friday Night | 65°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 6 mph SW | 62% |
| Saturday | 85°F | Chance Showers And Thunderstorms | 5 to 8 mph SW | 25% |
| Saturday Night | 66°F | Chance Showers And Thunderstorms | 7 mph SW | 25% |
| Sunday | 87°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 6 to 13 mph SW | 17% |
| Sunday Night | 69°F | Chance Showers And Thunderstorms | 9 to 13 mph SW | 36% |
| Monday | 87°F | Chance Rain Showers | 13 mph SW | 41% |
| Monday Night | 68°F | Chance Showers And Thunderstorms | 7 to 10 mph SW | 51% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for New Haven, OH
Last spring frost
Apr 25
First fall frost
Oct 25
Growing season
183 days
Hardiness zone
6a
Explore more for New Haven, OH: full frost dates · planting calendar · Ohio frost dates
Climate data from the nearest NOAA station, Norwalk Wwtp, Oh (16.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.