Castalia, OH Weather Forecast
Local 7-day forecast
Partly Sunny then Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Castalia, OH in one place.
A chance of rain showers between 1pm and 5pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 69. East wind around 8 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Castalia, OH is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Oct 14, 2026 6:18 PM EDT.
The active forecast window currently covers Oct 15 to Oct 20, 2026 for Castalia, OH.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 15 to Oct 20, 2026
- Latest sync
- Oct 14, 2026 6:18 PM EDT
- Forecast office
- CLE
- Source
- NOAA / NWS
Daily Outlook
This Week in Castalia
Thursday looks like the warmest upcoming period in Castalia at 69 degrees F.
Saturday Night is the coolest period ahead with temperatures near 36 degrees F.
The strongest winds are forecast for Friday Night at about 20 mph NW.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 14, 2026 6:18 PM EDT
- Coverage
- 6 days
- Time zone
- America/New_York
- Forecast office
- CLE
- Radar station
- KCLE
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Showers and thunderstorms. Mostly cloudy, with a low around 60. South wind 6 to 15 mph, with gusts as high as 35 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Rain showers. Cloudy, with a high near 64. West wind around 18 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
Rain showers. Mostly cloudy, with a low around 41. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of rain showers before 2pm. Mostly sunny, with a high near 52.
Mostly clear, with a low around 36.
Sunny, with a high near 62.
Mostly clear, with a low around 40.
Mostly sunny, with a high near 67.
Partly cloudy, with a low around 44.
Mostly sunny, with a high near 67.
Mostly clear, with a low around 45.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Oct 15
|
Partly Sunny then Chance Showers And Thunderstorms
|
69°F |
8 mph
E
|
|
Thursday Night
Oct 15
|
Showers And Thunderstorms
|
60°F |
6 to 15 mph
S
|
|
Friday
Oct 16
|
Rain Showers
|
64°F |
18 mph
W
|
|
Friday Night
Oct 16
|
Rain Showers
|
41°F |
20 mph
NW
|
|
Saturday
Oct 17
|
Slight Chance Rain Showers
|
52°F |
7 to 17 mph
N
|
|
Saturday Night
Oct 17
|
Mostly Clear
|
36°F |
5 mph
SW
|
|
Sunday
Oct 18
|
Sunny
|
62°F |
5 to 9 mph
SW
|
|
Sunday Night
Oct 18
|
Mostly Clear
|
40°F |
5 to 8 mph
S
|
|
Monday
Oct 19
|
Mostly Sunny
|
67°F |
7 mph
SW
|
|
Monday Night
Oct 19
|
Partly Cloudy
|
44°F |
5 mph
SW
|
|
Tuesday
Oct 20
|
Mostly Sunny
|
67°F |
3 mph
W
|
|
Tuesday Night
Oct 20
|
Mostly Clear
|
45°F |
2 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Castalia.