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As of 12:04 EDT

Weather in Castalia, OH

58°Current weather

Castalia, Friday, 23 October, 12:04

Overcast. Feels like 58°. High 61°, low 43°.

Pressure30.36 inHg
Wind1 mph SE
Humidity87%
Visibility6.2 mi
Dew point55°
Sat, 2464° / 41°0Mostly clear
64 °Mostly clear

Castalia, Saturday, 24 October

Mostly clear. High 64°, low 41°.

Pressure30.47 inHg
Wind0.7 mph NW
Humidity76%
Visibility6.2 mi
Dew point49°
Sun, 2565° / 41°0Partly cloudy
65 °Partly cloudy

Castalia, Sunday, 25 October

Partly cloudy. High 65°, low 41°.

Pressure30.47 inHg
Wind3.3 mph SW
Humidity65%
Visibility6.2 mi
Dew point49°
Mon, 2665° / 49°0Overcast
65 °Overcast

Castalia, Monday, 26 October

Overcast. High 65°, low 49°.

Pressure30.36 inHg
Wind5 mph W
Humidity65%
Visibility6.2 mi
Dew point50°
Tue, 2756° / 53°0Overcast
56 °Overcast

Castalia, Tuesday, 27 October

Overcast. High 56°, low 53°.

Pressure30.39 inHg
Wind10.1 mph NE
Humidity69%
Visibility6.2 mi
Dew point46°
Wed, 2860° / 49°0Overcast
60 °Overcast

Castalia, Wednesday, 28 October

Overcast. High 60°, low 49°.

Pressure30.24 inHg
Wind9 mph S
Humidity63%
Visibility—
Dew point46°
Thu, 2974° / 56°0Partly cloudy
74 °Partly cloudy

Castalia, Thursday, 29 October

Partly cloudy. High 74°, low 56°.

Pressure30.12 inHg
Wind18.9 mph SW
Humidity35%
Visibility—
Dew point42°
Fri, 3058° / 52°0.27Light rain
58 °Light rain

Castalia, Friday, 30 October

Light rain. High 58°, low 52°.

Pressure30.24 inHg
Wind10.9 mph NE
Humidity90%
Visibility—
Dew point51°
Sat, 3154° / 52°0.32Light rain
54 °Light rain

Castalia, Saturday, 31 October

Light rain. High 54°, low 52°.

Pressure30.21 inHg
Wind12.5 mph NE
Humidity91%
Visibility—
Dew point50°
Sun, 0159° / 55°0.02Light rain
59 °Light rain

Castalia, Sunday, 1 November

Light rain. High 59°, low 55°.

Pressure30.09 inHg
Wind7.4 mph E
Humidity86%
Visibility—
Dew point54°
Mon, 0259° / 55°0Light rain
59 °Light rain

Castalia, Monday, 2 November

Light rain. High 59°, low 55°.

Pressure30.09 inHg
Wind7.3 mph E
Humidity85%
Visibility—
Dew point54°
Tue, 0361° / 54°0.01Light rain
61 °Light rain

Castalia, Tuesday, 3 November

Light rain. High 61°, low 54°.

Pressure29.88 inHg
Wind12.1 mph SE
Humidity79%
Visibility—
Dew point53°
Wed, 0464° / 59°0.38Light rain
64 °Light rain

Castalia, Wednesday, 4 November

Light rain. High 64°, low 59°.

Pressure29.68 inHg
Wind10.7 mph SE
Humidity89%
Visibility—
Dew point60°
Thu, 0566° / 55°0.03Light rain
66 °Light rain

Castalia, Thursday, 5 November

Light rain. High 66°, low 55°.

Pressure29.88 inHg
Wind7.1 mph SE
Humidity74%
Visibility—
Dew point54°
Fri, 0663° / 53°0.05Light rain
63 °Light rain

Castalia, Friday, 6 November

Light rain. High 63°, low 53°.

Pressure29.77 inHg
Wind17.4 mph W
Humidity77%
Visibility—
Dew point53°
Sat, 0767° / 53°0Mostly clear
67 °Mostly clear

Castalia, Saturday, 7 November

Mostly clear. High 67°, low 53°.

Pressure29.65 inHg
Wind21.5 mph W
Humidity46%
Visibility—
Dew point43°

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.