Weather forecast for 10 daysCastalia, OH

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 64°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 9mphSSW 200°
  • Humidity: 55%
  • UV index: 4
  • Sunrise: 7:46 am EDT
  • Sunset: 6:45 pm EDT
  • ▼
On Sunday, in Castalia, sunshine is also expected with little to no cloud cover.
The day's temperature scale will range from a significant high of a comfortable 64.4°F to a minimum of a wintry 37.4°F.
Tomorrow's peak is forecasted to be slightly warmer than the regular high for October at 59.9°F.
Sunrise will be at 7:46 am and sunset at 6:45 pm; tomorrow's daylight will last for 10h and 59min.

10-day overview

Daily temperatures

Maximum temperature: 68°C.
Minimum temperature: 64°C.

Chance of precipitation

Highest chance: Wednesday 19%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • min.
  • 36°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 5mphSW 223°
  • Humidity: 71%
  • UV index: 0
  • Sunrise: 7:45 am EDT
  • Sunset: 6:47 pm EDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 64°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 9mphSSW 200°
  • Humidity: 55%
  • UV index: 4
  • Sunrise: 7:46 am EDT
  • Sunset: 6:45 pm EDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 68°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 3mphSSW 193°
  • Humidity: 55%
  • UV index: 4
  • Sunrise: 7:47 am EDT
  • Sunset: 6:44 pm EDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 66°F
  • 45°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 7mphNNE 31°
  • Humidity: 70%
  • UV index: 4
  • Sunrise: 7:49 am EDT
  • Sunset: 6:42 pm EDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 64°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 19%
  • Precipitation: 0"
  • Wind: 6mphENE 68°
  • Humidity: 73%
  • UV index: 4
  • Sunrise: 7:50 am EDT
  • Sunset: 6:41 pm EDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 66°F
  • 48°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 6mphN 5°
  • Humidity: 72%
  • UV index: 4
  • Sunrise: 7:51 am EDT
  • Sunset: 6:40 pm EDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 66°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 9mphENE 63°
  • Humidity: 73%
  • UV index: 4
  • Sunrise: 7:52 am EDT
  • Sunset: 6:38 pm EDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 66°F
  • 43°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 7mphE 92°
  • Humidity: 66%
  • UV index: 4
  • Sunrise: 7:53 am EDT
  • Sunset: 6:37 pm EDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 68°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 7mphSE 124°
  • Humidity: 66%
  • UV index: 3
  • Sunrise: 7:54 am EDT
  • Sunset: 6:35 pm EDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 66°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 7mphNNW 335°
  • Humidity: 69%
  • UV index: 3
  • Sunrise: 7:55 am EDT
  • Sunset: 6:34 pm EDT
  • ▼
Across the following ten days, a combination of bright and overcast weather is forecasted.
Rainfall is not expected in Castalia in the upcoming days.
The maximum temperature will be very similar in the forecast period ahead. The maximum temperature will vary between 64.4°F and 68°F, while the fluctuation in night temperatures will be significant, as temperatures overnight will fluctuate from 35.6°F up to 48.2°F.
The warmest days in Castalia will be Monday and next Sunday, with a maximum of 68°F; Sunday and Wednesday, with the highest temperature of 64.4°F, will be the coldest days in Castalia.
Updated: Oct 17, 2026 @ 21:30:57 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, sunshine will likely continue with scattered clouds at most.

Tomorrow, the maximum temperature will be 64.4°F, while the minimum temperature will be 37.4°F.
Tomorrow, the maximum temperature will be moderately higher than the average highest temperature in October. The lowest temperature will be notably lower than the average low of 50°F.

On Sunday, in Castalia, sunrise will be at 7:46 am and sunset at 6:45 pm (EDT).

In Castalia, tomorrow, there will be 10h and 59min of daylight.