Castalia, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Castalia, a village in Erie County, Ohio.
Tonight
62°F
Mostly Cloudy
Mostly cloudy, with a low around 62. South wind 8 to 12 mph, with gusts as high as 24 mph.
7-day forecast for Castalia
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 62°F | Mostly Cloudy | 8 to 12 mph S | 13% |
| Wednesday | 69°F | Light Rain | 12 to 17 mph S | 78% |
| Wednesday Night | 52°F | Light Rain Likely | 7 to 15 mph SW | 59% |
| Thursday | 64°F | Partly Sunny | 8 to 15 mph SW | 2% |
| Thursday Night | 48°F | Mostly Cloudy | 2 to 8 mph SW | 14% |
| Friday | 58°F | Chance Light Rain | 3 to 8 mph W | 36% |
| Friday Night | 42°F | Chance Light Rain | 8 mph NW | 36% |
| Saturday | 53°F | Slight Chance Light Rain | 7 to 10 mph NW | 24% |
| Saturday Night | 37°F | Slight Chance Light Rain then Mostly Cloudy | 2 to 6 mph W | 16% |
| Sunday | 54°F | Mostly Sunny | 5 to 12 mph W | 13% |
| Sunday Night | 37°F | Partly Cloudy | 8 mph W | 14% |
| Monday | 57°F | Slight Chance Light Rain | 7 to 12 mph W | 17% |
| Monday Night | 40°F | Slight Chance Light Rain then Partly Cloudy | 9 mph SW | 15% |
| Tuesday | 60°F | Mostly Sunny | 12 mph W | 5% |
Forecast source: National Weather Service (api.weather.gov) for Castalia (41.404, -82.802). Updated through the day.
Growing snapshot for Castalia
Last spring frost
Apr 10
First fall frost
Nov 5
Growing season
209 days
Hardiness zone
6b
More local growing data for Castalia: nearby ZIP 44824 weather · frost dates · planting calendar · Ohio frost dates
Nearby towns & communities
Berlin Heights
Beulah Beach
Birmingham
Bloomingville
Huron
Kelleys Island
Milan
Mitiwanga
Sandusky
Vermilion
Climate data from the nearest NOAA station, Sandusky, Oh (6.5 mi from Castalia). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.