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As of 19:23 EDT

Weather in Castalia, OH

55°Current weather

Castalia, Thursday, 22 October, 19:23

Clear. Feels like 54°. High 67°, low 39°.

Pressure30.21 inHg
Wind3.4 mph SE
Humidity80%
Visibility6.2 mi
Dew point49°
Fri, 2363° / 44°0Overcast
63 °Overcast

Castalia, Friday, 23 October

Overcast. High 63°, low 44°.

Pressure30.39 inHg
Wind6.1 mph N
Humidity96%
Visibility0.1 mi
Dew point55°
Sat, 2460° / 40°0Clear
60 °Clear

Castalia, Saturday, 24 October

Clear. High 60°, low 40°.

Pressure30.47 inHg
Wind1.1 mph NW
Humidity72%
Visibility6.2 mi
Dew point49°
Sun, 2565° / 44°0Mostly clear
65 °Mostly clear

Castalia, Sunday, 25 October

Mostly clear. High 65°, low 44°.

Pressure30.47 inHg
Wind3.4 mph SW
Humidity61%
Visibility6.2 mi
Dew point47°
Mon, 2661° / 48°0Overcast
61 °Overcast

Castalia, Monday, 26 October

Overcast. High 61°, low 48°.

Pressure30.39 inHg
Wind3.4 mph NW
Humidity74%
Visibility6.2 mi
Dew point50°
Tue, 2755° / 51°0Overcast
55 °Overcast

Castalia, Tuesday, 27 October

Overcast. High 55°, low 51°.

Pressure30.42 inHg
Wind12.5 mph NE
Humidity67%
Visibility—
Dew point44°
Wed, 2868° / 49°0Overcast
68 °Overcast

Castalia, Wednesday, 28 October

Overcast. High 68°, low 49°.

Pressure30.15 inHg
Wind8.1 mph SW
Humidity59%
Visibility—
Dew point49°
Thu, 2964° / 52°0Overcast
64 °Overcast

Castalia, Thursday, 29 October

Overcast. High 64°, low 52°.

Pressure30.15 inHg
Wind10.5 mph W
Humidity54%
Visibility—
Dew point46°
Fri, 3070° / 52°0.13Light rain
70 °Light rain

Castalia, Friday, 30 October

Light rain. High 70°, low 52°.

Pressure29.94 inHg
Wind17.5 mph SW
Humidity41%
Visibility—
Dew point43°
Sat, 3155° / 52°0.06Light rain
55 °Light rain

Castalia, Saturday, 31 October

Light rain. High 55°, low 52°.

Pressure30.15 inHg
Wind13.8 mph NE
Humidity67%
Visibility—
Dew point44°
Sun, 0154° / 51°0.09Light rain
54 °Light rain

Castalia, Sunday, 1 November

Light rain. High 54°, low 51°.

Pressure30.06 inHg
Wind14.2 mph NE
Humidity85%
Visibility—
Dew point49°
Mon, 0253° / 49°0.08Light rain
53 °Light rain

Castalia, Monday, 2 November

Light rain. High 53°, low 49°.

Pressure30.03 inHg
Wind18.8 mph NE
Humidity51%
Visibility—
Dew point35°
Tue, 0350° / 44°0Clear
50 °Clear

Castalia, Tuesday, 3 November

Clear. High 50°, low 44°.

Pressure30.36 inHg
Wind10.5 mph NE
Humidity49%
Visibility—
Dew point31°
Wed, 0451° / 44°0Overcast
51 °Overcast

Castalia, Wednesday, 4 November

Overcast. High 51°, low 44°.

Pressure30.50 inHg
Wind8 mph NE
Humidity54%
Visibility—
Dew point34°
Thu, 0557° / 39°0Clear
57 °Clear

Castalia, Thursday, 5 November

Clear. High 57°, low 39°.

Pressure30.45 inHg
Wind8.6 mph SW
Humidity37%
Visibility—
Dew point28°
Fri, 0659° / 41°0Clear
59 °Clear

Castalia, Friday, 6 November

Clear. High 59°, low 41°.

Pressure30.24 inHg
Wind8.9 mph SW
Humidity41%
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.