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As of 18:05 EDT

Weather in Castalia, OH

53°Current weather

Castalia, Saturday, 17 October, 18:05

Clear. Feels like 50°. High 53°, low 41°.

Pressure30.42 inHg
Wind2 mph NW
Humidity45%
Visibility6.2 mi
Dew point33°
Sun, 1862° / 41°0Clear
62 °Clear

Castalia, Sunday, 18 October

Clear. High 62°, low 41°.

Pressure30.53 inHg
Wind10.6 mph SW
Humidity50%
Visibility6.2 mi
Dew point37°
Mon, 1961° / 42°0Clear
61 °Clear

Castalia, Monday, 19 October

Clear. High 61°, low 42°.

Pressure30.47 inHg
Wind2.1 mph SW
Humidity54%
Visibility6.2 mi
Dew point40°
Tue, 2061° / 48°0Partly cloudy
61 °Partly cloudy

Castalia, Tuesday, 20 October

Partly cloudy. High 61°, low 48°.

Pressure30.42 inHg
Wind7.2 mph NE
Humidity67%
Visibility6.2 mi
Dew point49°
Wed, 2160° / 46°0Clear
60 °Clear

Castalia, Wednesday, 21 October

Clear. High 60°, low 46°.

Pressure30.30 inHg
Wind0.5 mph W
Humidity90%
Visibility4.4 mi
Dew point51°
Thu, 2260° / 50°0Mostly clear
60 °Mostly clear

Castalia, Thursday, 22 October

Mostly clear. High 60°, low 50°.

Pressure30.27 inHg
Wind11.5 mph NE
Humidity81%
Visibility—
Dew point53°
Fri, 2364° / 51°0Mostly clear
64 °Mostly clear

Castalia, Friday, 23 October

Mostly clear. High 64°, low 51°.

Pressure30.30 inHg
Wind8.6 mph NE
Humidity57%
Visibility—
Dew point47°
Sat, 2468° / 51°0Overcast
68 °Overcast

Castalia, Saturday, 24 October

Overcast. High 68°, low 51°.

Pressure30.33 inHg
Wind8.1 mph S
Humidity47%
Visibility—
Dew point45°
Sun, 2570° / 55°0Overcast
70 °Overcast

Castalia, Sunday, 25 October

Overcast. High 70°, low 55°.

Pressure30.24 inHg
Wind15 mph SW
Humidity41%
Visibility—
Dew point43°
Mon, 2671° / 57°0.11Light rain
71 °Light rain

Castalia, Monday, 26 October

Light rain. High 71°, low 57°.

Pressure30.09 inHg
Wind14.7 mph W
Humidity43%
Visibility—
Dew point46°
Tue, 2755° / 46°0.3Rain
55 °Rain

Castalia, Tuesday, 27 October

Rain. High 55°, low 46°.

Pressure30.27 inHg
Wind16.2 mph N
Humidity55%
Visibility—
Dew point37°
Wed, 2852° / 43°0Clear
52 °Clear

Castalia, Wednesday, 28 October

Clear. High 52°, low 43°.

Pressure30.42 inHg
Wind10.4 mph NE
Humidity49%
Visibility—
Dew point32°
Thu, 2956° / 39°0.05Light rain
56 °Light rain

Castalia, Thursday, 29 October

Light rain. High 56°, low 39°.

Pressure30.12 inHg
Wind11.8 mph S
Humidity35%
Visibility—
Dew point27°
Fri, 3067° / 56°0.01Light rain
67 °Light rain

Castalia, Friday, 30 October

Light rain. High 67°, low 56°.

Pressure30.00 inHg
Wind16.2 mph S
Humidity58%
Visibility—
Dew point50°
Sat, 3167° / 59°0.19Light rain
67 °Light rain

Castalia, Saturday, 31 October

Light rain. High 67°, low 59°.

Pressure29.88 inHg
Wind25.7 mph SW
Humidity61%
Visibility—
Dew point53°
Sun, 0163° / 50°0Clear
63 °Clear

Castalia, Sunday, 1 November

Clear. High 63°, low 50°.

Pressure30.27 inHg
Wind8.3 mph SE
Humidity46%
Visibility—
Dew point40°

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Castalia, OH are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Castalia, OH since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.