Castalia, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Castalia, a village in Erie County, Ohio.
This Afternoon
71°F
Mostly Sunny
Mostly sunny, with a high near 71. Northeast wind around 9 mph.
7-day forecast for Castalia
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 71°F | Mostly Sunny | 9 mph NE | 0% |
| Tonight | 59°F | Partly Cloudy | 2 to 7 mph E | 2% |
| Saturday | 75°F | Chance Rain Showers | 6 mph E | 53% |
| Saturday Night | 64°F | Showers And Thunderstorms | 6 mph SE | 77% |
| Sunday | 73°F | Showers And Thunderstorms | 5 to 13 mph NW | 86% |
| Sunday Night | 60°F | Rain Showers Likely | 13 mph NE | 59% |
| Monday | 67°F | Chance Rain Showers | 14 to 20 mph NE | 32% |
| Monday Night | 56°F | Chance Rain Showers | 14 to 18 mph NE | 34% |
| Tuesday | 66°F | Chance Rain Showers | 16 to 21 mph NE | 34% |
| Tuesday Night | 56°F | Rain Showers Likely | 13 to 18 mph E | 55% |
| Wednesday | 67°F | Rain Showers Likely | 14 mph E | 55% |
| Wednesday Night | 55°F | Rain Showers Likely | 7 to 13 mph E | 55% |
| Thursday | 68°F | Slight Chance Rain Showers | 7 to 10 mph NE | 24% |
| Thursday Night | 56°F | Slight Chance Rain Showers | 5 to 9 mph NE | 20% |
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 Sep 18, 2026.