Weather forecast for todayCastalia, OH

Weather forecast for today

Current condition 8:07 am EDT

  • 39°F
  • Feels like:
    36°F
Sunny
Sunny
  • Precipitation: 0"
  • Wind: 5mphS 180°
  • Humidity: 79%
  • Dewpoint: 34°F
  • Pressure: 30.55"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
In Castalia, currently, the sun is shining uninterrupted, making for an excellent day outdoors.
The temperature is a wintry 39.2°F, with the real-feel temperature being estimated at a cold 35.6°F. The current temperature is at its lowest of the day.

Sunday Oct 18, 2026

  • 66°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 11mphSSW 201°
  • Humidity: 53%
  • UV index: 4
  • Sunrise: 7:46 am EDT
  • Sunset: 6:45 pm EDT
  • ▼
On Sunday, October 18, expect sunny weather with a crisp, clear sky.
Temperature fluctuations will be substantial, ranging from a peak of an enjoyable 66.2°F to a low of a wintry 39.2°F.
Expect a warmer feel as the forecasted high matches September's 70.7°F, rather than October's average of 59.9°F.
Sunrise was at 7:46 am and sunset will be at 6:45 pm; the daylight will last for 10h and 59min.

Hourly overview

Hourly temperatures

Warmest period: 3 pm - 5 pm 64°C.
Coldest hour: 9 am 43°C.

Chance of precipitation

Highest chance: 2%.

Hourly weather forecast

  • 9 am
  • 43°F
  • Feels like:
    39°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 6mphSSW 196°
  • Humidity: 73%
  • Pressure: 30.53"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 48°F
  • Feels like:
    45°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 7mphSSW 197°
  • Humidity: 62%
  • Pressure: 30.53"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 11 am
  • 54°F
  • Feels like:
    50°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 8mphSSW 202°
  • Humidity: 55%
  • Pressure: 30.53"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 57°F
  • Feels like:
    55°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphSSW 204°
  • Humidity: 48%
  • Pressure: 30.53"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 1 pm
  • 61°F
  • Feels like:
    59°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 10mphSSW 206°
  • Humidity: 43%
  • Pressure: 30.5"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 2 pm
  • 63°F
  • Feels like:
    63°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 10mphSSW 206°
  • Humidity: 38%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 3 pm
  • 64°F
  • Feels like:
    63°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphSSW 204°
  • Humidity: 36%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 64°F
  • Feels like:
    64°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 10mphSSW 200°
  • Humidity: 35%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 5 pm
  • 64°F
  • Feels like:
    63°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphSSW 198°
  • Humidity: 37%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 63°F
  • Feels like:
    61°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphS 190°
  • Humidity: 42%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:45 pm
  • 7 pm
  • 57°F
  • Feels like:
    55°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphS 187°
  • Humidity: 50%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 pm
  • 54°F
  • Feels like:
    52°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 5mphS 183°
  • Humidity: 57%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 9 pm
  • 52°F
  • Feels like:
    50°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 5mphS 186°
  • Humidity: 61%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 50°F
  • Feels like:
    46°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 6mphS 183°
  • Humidity: 65%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 11 pm
  • 48°F
  • Feels like:
    46°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 5mphS 183°
  • Humidity: 68%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Today, clear skies and sunny weather are expected.
The temperature will be between a minimum of 42.8°F and a maximum of 64.4°F. The warmest part of the day will be from 3 pm to 5 pm.
The maximum temperature will align more closely with September's average high of 70.7°F than with October's 59.9°F. The expected low will be more alike with what’s common in November than the current October average of 50°F.
Updated: Oct 18, 2026 @ 12:07:48 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

The current temperature (8:07 am EDT) is 39.2°F.

Today, sun-filled conditions are expected to persist.

Today, the highest temperature will be 66.2°F, while the lowest temperature will be 39.2°F.
Today, the highest temperature will be moderately higher than the average maximum temperature in October. The lowest temperature today will be notably lower than the average low of 50°F.

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

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