Castalia, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Castalia, a village in Erie County, Ohio.
Today
81°F
Sunny
Sunny, with a high near 81. East wind 0 to 3 mph.
7-day forecast for Castalia
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 81°F | Sunny | 0 to 3 mph E | 0% |
| Tonight | 62°F | Mostly Clear | 0 to 3 mph E | 0% |
| Wednesday | 86°F | Sunny | 0 to 3 mph SW | 2% |
| Wednesday Night | 67°F | Partly Cloudy | 3 mph S | 6% |
| Thursday | 85°F | Mostly Sunny then Chance Showers And Thunderstorms | 7 mph SW | 51% |
| Thursday Night | 67°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 mph SW | 59% |
| Friday | 83°F | Showers And Thunderstorms Likely | 6 mph SW | 55% |
| Friday Night | 66°F | Chance Showers And Thunderstorms | 5 mph SW | 45% |
| Saturday | 85°F | Slight Chance Showers And Thunderstorms | 7 mph SW | 16% |
| Saturday Night | 68°F | Slight Chance Showers And Thunderstorms | 6 mph SW | 19% |
| Sunday | 88°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 6 to 13 mph SW | 19% |
| Sunday Night | 70°F | Chance Showers And Thunderstorms | 7 to 12 mph SW | 39% |
| Monday | 87°F | Chance Rain Showers | 12 mph SW | 42% |
| Monday Night | 69°F | Chance Showers And Thunderstorms | 5 to 9 mph SW | 52% |
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 Aug 4, 2026.