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As of 15:31 EDT

Weather in Castalia, OH

87°Current weather

Castalia, Tuesday, 13 October, 15:31

Clear. Feels like 89°. High 87°, low 67°.

Pressure29.77 inHg
Wind16 mph W
Humidity46%
Visibility6.2 mi
Dew point64°
Wed, 1466° / 63°0.32Heavy rain
66 °Heavy rain

Castalia, Wednesday, 14 October

Heavy rain. High 66°, low 63°.

Pressure30.06 inHg
Wind7.4 mph N
Humidity79%
Visibility6.2 mi
Dew point58°
Thu, 1569° / 60°0.14Rain
69 °Rain

Castalia, Thursday, 15 October

Rain. High 69°, low 60°.

Pressure30.15 inHg
Wind8.3 mph E
Humidity69%
Visibility6.2 mi
Dew point52°
Fri, 1671° / 52°0.63Rain
71 °Rain

Castalia, Friday, 16 October

Rain. High 71°, low 52°.

Pressure29.77 inHg
Wind16.3 mph W
Humidity62%
Visibility6.2 mi
Dew point49°
Sat, 1752° / 44°0.02Light rain
52 °Light rain

Castalia, Saturday, 17 October

Light rain. High 52°, low 44°.

Pressure30.47 inHg
Wind10.9 mph N
Humidity61%
Visibility6.2 mi
Dew point35°
Sun, 1861° / 43°0Partly cloudy
61 °Partly cloudy

Castalia, Sunday, 18 October

Partly cloudy. High 61°, low 43°.

Pressure30.39 inHg
Wind13.9 mph SW
Humidity41%
Visibility—
Dew point34°
Mon, 1963° / 51°0Overcast
63 °Overcast

Castalia, Monday, 19 October

Overcast. High 63°, low 51°.

Pressure30.21 inHg
Wind16.6 mph SW
Humidity52%
Visibility—
Dew point44°
Tue, 2057° / 55°0.17Light rain
57 °Light rain

Castalia, Tuesday, 20 October

Light rain. High 57°, low 55°.

Pressure30.33 inHg
Wind5.6 mph SE
Humidity91%
Visibility—
Dew point54°
Wed, 2167° / 57°0Overcast
67 °Overcast

Castalia, Wednesday, 21 October

Overcast. High 67°, low 57°.

Pressure30.33 inHg
Wind8.5 mph SE
Humidity73%
Visibility—
Dew point55°
Thu, 2274° / 57°0Partly cloudy
74 °Partly cloudy

Castalia, Thursday, 22 October

Partly cloudy. High 74°, low 57°.

Pressure30.18 inHg
Wind14.7 mph S
Humidity50%
Visibility—
Dew point51°
Fri, 2375° / 62°0Overcast
75 °Overcast

Castalia, Friday, 23 October

Overcast. High 75°, low 62°.

Pressure30.09 inHg
Wind22.1 mph SW
Humidity43%
Visibility—
Dew point49°
Sat, 2470° / 55°0Partly cloudy
70 °Partly cloudy

Castalia, Saturday, 24 October

Partly cloudy. High 70°, low 55°.

Pressure30.21 inHg
Wind15.8 mph SW
Humidity37%
Visibility—
Dew point38°
Sun, 2560° / 50°0Partly cloudy
60 °Partly cloudy

Castalia, Sunday, 25 October

Partly cloudy. High 60°, low 50°.

Pressure30.18 inHg
Wind11.6 mph NW
Humidity43%
Visibility—
Dew point35°
Mon, 2656° / 44°0Partly cloudy
56 °Partly cloudy

Castalia, Monday, 26 October

Partly cloudy. High 56°, low 44°.

Pressure30.00 inHg
Wind22.2 mph NW
Humidity43%
Visibility—
Dew point33°
Tue, 2750° / 43°0Partly cloudy
50 °Partly cloudy

Castalia, Tuesday, 27 October

Partly cloudy. High 50°, low 43°.

Pressure30.33 inHg
Wind12.7 mph NW
Humidity52%
Visibility—
Dew point32°
Wed, 2860° / 43°0Overcast
60 °Overcast

Castalia, Wednesday, 28 October

Overcast. High 60°, low 43°.

Pressure30.18 inHg
Wind10 mph SE
Humidity36%
Visibility—
Dew point29°

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.