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As of 23:55 EDT

Weather in Castalia, OH

57°Current weather

Castalia, Wednesday, 14 October, 23:55

Overcast. Feels like 57°. High 68°, low 56°.

Pressure30.15 inHg
Wind15 mph E
Humidity82%
Visibility6.2 mi
Dew point52°
Fri, 1669° / 51°0.61Heavy rain
69 °Heavy rain

Castalia, Friday, 16 October

Heavy rain. High 69°, low 51°.

Pressure30.15 inHg
Wind7.5 mph E
Humidity68%
Visibility6.2 mi
Dew point51°
Sat, 1751° / 44°0.02Light rain
51 °Light rain

Castalia, Saturday, 17 October

Light rain. High 51°, low 44°.

Pressure29.83 inHg
Wind14.3 mph W
Humidity83%
Visibility6.2 mi
Dew point52°
Sun, 1861° / 41°0Clear
61 °Clear

Castalia, Sunday, 18 October

Clear. High 61°, low 41°.

Pressure30.47 inHg
Wind13 mph N
Humidity57%
Visibility6.2 mi
Dew point33°
Mon, 1963° / 43°0Clear
63 °Clear

Castalia, Monday, 19 October

Clear. High 63°, low 43°.

Pressure30.53 inHg
Wind10.3 mph SW
Humidity49%
Visibility6.2 mi
Dew point35°
Tue, 2062° / 44°0Mostly clear
62 °Mostly clear

Castalia, Tuesday, 20 October

Mostly clear. High 62°, low 44°.

Pressure30.36 inHg
Wind6.4 mph NE
Humidity59%
Visibility—
Dew point46°
Wed, 2165° / 50°0Partly cloudy
65 °Partly cloudy

Castalia, Wednesday, 21 October

Partly cloudy. High 65°, low 50°.

Pressure30.39 inHg
Wind8.5 mph NE
Humidity42%
Visibility—
Dew point39°
Thu, 2267° / 50°0Partly cloudy
67 °Partly cloudy

Castalia, Thursday, 22 October

Partly cloudy. High 67°, low 50°.

Pressure30.30 inHg
Wind6.1 mph SE
Humidity43%
Visibility—
Dew point42°
Fri, 2374° / 55°0Overcast
74 °Overcast

Castalia, Friday, 23 October

Overcast. High 74°, low 55°.

Pressure30.21 inHg
Wind12.1 mph SW
Humidity48%
Visibility—
Dew point50°
Sat, 2475° / 59°0.02Light rain
75 °Light rain

Castalia, Saturday, 24 October

Light rain. High 75°, low 59°.

Pressure30.24 inHg
Wind14 mph SW
Humidity46%
Visibility—
Dew point51°
Sun, 2571° / 61°0.13Light rain
71 °Light rain

Castalia, Sunday, 25 October

Light rain. High 71°, low 61°.

Pressure30.15 inHg
Wind11.7 mph S
Humidity78%
Visibility—
Dew point58°
Mon, 2664° / 49°0.03Light rain
64 °Light rain

Castalia, Monday, 26 October

Light rain. High 64°, low 49°.

Pressure29.88 inHg
Wind29.3 mph SW
Humidity80%
Visibility—
Dew point51°
Tue, 2757° / 44°0Partly cloudy
57 °Partly cloudy

Castalia, Tuesday, 27 October

Partly cloudy. High 57°, low 44°.

Pressure30.18 inHg
Wind8.1 mph NE
Humidity48%
Visibility—
Dew point36°
Wed, 2854° / 51°0.8Rain
54 °Rain

Castalia, Wednesday, 28 October

Rain. High 54°, low 51°.

Pressure29.88 inHg
Wind16.3 mph N
Humidity88%
Visibility—
Dew point49°
Thu, 2961° / 48°0.02Light rain
61 °Light rain

Castalia, Thursday, 29 October

Light rain. High 61°, low 48°.

Pressure29.88 inHg
Wind16.4 mph NW
Humidity53%
Visibility—
Dew point41°
Fri, 3056° / 45°0Clear
56 °Clear

Castalia, Friday, 30 October

Clear. High 56°, low 45°.

Pressure30.18 inHg
Wind9.3 mph NW
Humidity43%
Visibility—
Dew point33°

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.