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As of 00:49 EDT

Weather in Castalia, OH

46°Current weather

Castalia, Tuesday, 20 October, 00:49

Clear. Feels like 46°. High 68°, low 45°.

Pressure30.36 inHg
Wind0 mph N
Humidity93%
Visibility6.2 mi
Dew point44°
Wed, 2165° / 40°0Mostly clear
65 °Mostly clear

Castalia, Wednesday, 21 October

Mostly clear. High 65°, low 40°.

Pressure30.30 inHg
Wind1.9 mph NW
Humidity80%
Visibility6.2 mi
Dew point52°
Thu, 2259° / 49°0Overcast
59 °Overcast

Castalia, Thursday, 22 October

Overcast. High 59°, low 49°.

Pressure30.27 inHg
Wind11.9 mph N
Humidity79%
Visibility6.2 mi
Dew point52°
Fri, 2356° / 50°0Mostly clear
56 °Mostly clear

Castalia, Friday, 23 October

Mostly clear. High 56°, low 50°.

Pressure30.42 inHg
Wind5 mph E
Humidity65%
Visibility6.2 mi
Dew point43°
Sat, 2455° / 40°0Clear
55 °Clear

Castalia, Saturday, 24 October

Clear. High 55°, low 40°.

Pressure30.50 inHg
Wind7.7 mph SE
Humidity59%
Visibility—
Dew point39°
Sun, 2567° / 42°0Partly cloudy
67 °Partly cloudy

Castalia, Sunday, 25 October

Partly cloudy. High 67°, low 42°.

Pressure30.45 inHg
Wind9.2 mph SW
Humidity40%
Visibility—
Dew point38°
Mon, 2660° / 55°0.15Light rain
60 °Light rain

Castalia, Monday, 26 October

Light rain. High 60°, low 55°.

Pressure30.27 inHg
Wind8.7 mph SW
Humidity60%
Visibility—
Dew point45°
Tue, 2752° / 42°0.76Rain
52 °Rain

Castalia, Tuesday, 27 October

Rain. High 52°, low 42°.

Pressure30.09 inHg
Wind20.9 mph NW
Humidity92%
Visibility—
Dew point45°
Wed, 2842° / 34°0Partly cloudy
42 °Partly cloudy

Castalia, Wednesday, 28 October

Partly cloudy. High 42°, low 34°.

Pressure30.30 inHg
Wind19.3 mph NW
Humidity47%
Visibility—
Dew point21°
Thu, 2948° / 31°0Clear
48 °Clear

Castalia, Thursday, 29 October

Clear. High 48°, low 31°.

Pressure30.15 inHg
Wind18.2 mph W
Humidity41%
Visibility—
Dew point22°
Fri, 3052° / 33°0Clear
52 °Clear

Castalia, Friday, 30 October

Clear. High 52°, low 33°.

Pressure30.15 inHg
Wind13.8 mph SW
Humidity37%
Visibility—
Dew point23°
Sat, 3158° / 41°0Overcast
58 °Overcast

Castalia, Saturday, 31 October

Overcast. High 58°, low 41°.

Pressure30.27 inHg
Wind9.7 mph SW
Humidity32%
Visibility—
Dew point26°
Sun, 0162° / 47°0Overcast
62 °Overcast

Castalia, Sunday, 1 November

Overcast. High 62°, low 47°.

Pressure30.21 inHg
Wind14.9 mph SW
Humidity34%
Visibility—
Dew point31°
Mon, 0256° / 50°0.46Rain
56 °Rain

Castalia, Monday, 2 November

Rain. High 56°, low 50°.

Pressure30.00 inHg
Wind16.4 mph S
Humidity91%
Visibility—
Dew point50°
Tue, 0356° / 49°0.2Light rain
56 °Light rain

Castalia, Tuesday, 3 November

Light rain. High 56°, low 49°.

Pressure29.77 inHg
Wind17.7 mph NW
Humidity77%
Visibility—
Dew point47°
Wed, 0452° / 47°0.04Light rain
52 °Light rain

Castalia, Wednesday, 4 November

Light rain. High 52°, low 47°.

Pressure30.03 inHg
Wind18.7 mph NW
Humidity53%
Visibility—
Dew point35°

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.