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As of 04:39 EDT

Weather in Castalia, OH

71°Current weather

Castalia, Tuesday, 13 October, 04:39

Partly cloudy. Feels like 72°. High 82°, low 68°.

Pressure29.83 inHg
Wind10.4 mph SW
Humidity71%
Visibility6.2 mi
Dew point62°
Wed, 1467° / 62°0.08Light rain
67 °Light rain

Castalia, Wednesday, 14 October

Light rain. High 67°, low 62°.

Pressure30.03 inHg
Wind7.4 mph N
Humidity82%
Visibility6.2 mi
Dew point59°
Thu, 1565° / 59°0.57Rain
65 °Rain

Castalia, Thursday, 15 October

Rain. High 65°, low 59°.

Pressure30.18 inHg
Wind8.4 mph E
Humidity72%
Visibility6.2 mi
Dew point50°
Fri, 1670° / 51°0.62Rain
70 °Rain

Castalia, Friday, 16 October

Rain. High 70°, low 51°.

Pressure29.80 inHg
Wind16.4 mph W
Humidity70%
Visibility6.2 mi
Dew point50°
Sat, 1752° / 44°0Light rain
52 °Light rain

Castalia, Saturday, 17 October

Light rain. High 52°, low 44°.

Pressure30.47 inHg
Wind21.1 mph N
Humidity57%
Visibility—
Dew point34°
Sun, 1862° / 43°0Partly cloudy
62 °Partly cloudy

Castalia, Sunday, 18 October

Partly cloudy. High 62°, low 43°.

Pressure30.36 inHg
Wind13 mph SW
Humidity42%
Visibility—
Dew point35°
Mon, 1967° / 50°0Overcast
67 °Overcast

Castalia, Monday, 19 October

Overcast. High 67°, low 50°.

Pressure30.30 inHg
Wind11.4 mph SW
Humidity40%
Visibility—
Dew point40°
Tue, 2059° / 57°0.06Light rain
59 °Light rain

Castalia, Tuesday, 20 October

Light rain. High 59°, low 57°.

Pressure30.36 inHg
Wind7.2 mph S
Humidity80%
Visibility—
Dew point51°
Wed, 2169° / 57°0Overcast
69 °Overcast

Castalia, Wednesday, 21 October

Overcast. High 69°, low 57°.

Pressure30.33 inHg
Wind6.6 mph E
Humidity61%
Visibility—
Dew point53°
Thu, 2274° / 56°0Partly cloudy
74 °Partly cloudy

Castalia, Thursday, 22 October

Partly cloudy. High 74°, low 56°.

Pressure30.18 inHg
Wind9.8 mph S
Humidity47%
Visibility—
Dew point50°
Fri, 2375° / 62°0Overcast
75 °Overcast

Castalia, Friday, 23 October

Overcast. High 75°, low 62°.

Pressure30.06 inHg
Wind23.2 mph SW
Humidity44%
Visibility—
Dew point50°
Sat, 2464° / 53°0Light rain
64 °Light rain

Castalia, Saturday, 24 October

Light rain. High 64°, low 53°.

Pressure30.12 inHg
Wind16.1 mph W
Humidity44%
Visibility—
Dew point40°
Sun, 2558° / 46°0Overcast
58 °Overcast

Castalia, Sunday, 25 October

Overcast. High 58°, low 46°.

Pressure30.09 inHg
Wind12.5 mph NW
Humidity39%
Visibility—
Dew point31°
Mon, 2655° / 47°0Mostly clear
55 °Mostly clear

Castalia, Monday, 26 October

Mostly clear. High 55°, low 47°.

Pressure30.21 inHg
Wind13.9 mph NW
Humidity40%
Visibility—
Dew point29°
Tue, 2756° / 41°0Overcast
56 °Overcast

Castalia, Tuesday, 27 October

Overcast. High 56°, low 41°.

Pressure30.21 inHg
Wind10.6 mph W
Humidity40%
Visibility—
Dew point30°
Wed, 2857° / 45°0Mostly clear
57 °Mostly clear

Castalia, Wednesday, 28 October

Mostly clear. High 57°, low 45°.

Pressure29.83 inHg
Wind22.1 mph W
Humidity58%
Visibility—
Dew point41°

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.