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As of 00:43 EDT

Weather in Castalia, OH

70°Current weather

Castalia, Tuesday, 13 October, 00:43

Mostly clear. Feels like 70°. High 80°, low 65°.

Pressure29.85 inHg
Wind9.2 mph SW
Humidity77%
Visibility6.2 mi
Dew point62°
Wed, 1467° / 62°0.13Rain
67 °Rain

Castalia, Wednesday, 14 October

Rain. High 67°, low 62°.

Pressure30.03 inHg
Wind7.9 mph N
Humidity79%
Visibility6.2 mi
Dew point58°
Thu, 1561° / 58°0.94Heavy rain
61 °Heavy rain

Castalia, Thursday, 15 October

Heavy rain. High 61°, low 58°.

Pressure30.18 inHg
Wind8.5 mph E
Humidity71%
Visibility6.2 mi
Dew point51°
Fri, 1664° / 51°0.57Heavy rain
64 °Heavy rain

Castalia, Friday, 16 October

Heavy rain. High 64°, low 51°.

Pressure29.83 inHg
Wind15.9 mph NW
Humidity79%
Visibility6.2 mi
Dew point51°
Sat, 1754° / 45°0Clear
54 °Clear

Castalia, Saturday, 17 October

Clear. High 54°, low 45°.

Pressure30.45 inHg
Wind20.2 mph N
Humidity55%
Visibility—
Dew point34°
Sun, 1861° / 44°0Partly cloudy
61 °Partly cloudy

Castalia, Sunday, 18 October

Partly cloudy. High 61°, low 44°.

Pressure30.33 inHg
Wind13.3 mph SW
Humidity38%
Visibility—
Dew point32°
Mon, 1966° / 45°0Overcast
66 °Overcast

Castalia, Monday, 19 October

Overcast. High 66°, low 45°.

Pressure30.30 inHg
Wind13.2 mph SW
Humidity38%
Visibility—
Dew point37°
Tue, 2066° / 54°0Overcast
66 °Overcast

Castalia, Tuesday, 20 October

Overcast. High 66°, low 54°.

Pressure30.27 inHg
Wind6.3 mph NE
Humidity46%
Visibility—
Dew point43°
Wed, 2166° / 57°0Overcast
66 °Overcast

Castalia, Wednesday, 21 October

Overcast. High 66°, low 57°.

Pressure30.30 inHg
Wind8.6 mph E
Humidity46%
Visibility—
Dew point44°
Thu, 2274° / 53°0Clear
74 °Clear

Castalia, Thursday, 22 October

Clear. High 74°, low 53°.

Pressure30.21 inHg
Wind14.9 mph S
Humidity44%
Visibility—
Dew point47°
Fri, 2368° / 61°0.15Light rain
68 °Light rain

Castalia, Friday, 23 October

Light rain. High 68°, low 61°.

Pressure30.03 inHg
Wind24.2 mph S
Humidity67%
Visibility—
Dew point56°
Sat, 2463° / 48°0Partly cloudy
63 °Partly cloudy

Castalia, Saturday, 24 October

Partly cloudy. High 63°, low 48°.

Pressure30.21 inHg
Wind13.5 mph W
Humidity45%
Visibility—
Dew point39°
Sun, 2550° / 45°0.02Light rain
50 °Light rain

Castalia, Sunday, 25 October

Light rain. High 50°, low 45°.

Pressure30.27 inHg
Wind10 mph NW
Humidity66%
Visibility—
Dew point38°
Mon, 2652° / 41°0Overcast
52 °Overcast

Castalia, Monday, 26 October

Overcast. High 52°, low 41°.

Pressure30.06 inHg
Wind8.3 mph W
Humidity46%
Visibility—
Dew point30°
Tue, 2752° / 44°0.12Light rain
52 °Light rain

Castalia, Tuesday, 27 October

Light rain. High 52°, low 44°.

Pressure29.56 inHg
Wind19.7 mph W
Humidity66%
Visibility—
Dew point40°
Wed, 2849° / 45°0.07Light rain
49 °Light rain

Castalia, Wednesday, 28 October

Light rain. High 49°, low 45°.

Pressure29.62 inHg
Wind19.7 mph W
Humidity58%
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.