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As of 19:48 EDT

Weather in Castalia, OH

83°Current weather

Castalia, Saturday, 8 August, 19:48

Mostly clear. Feels like 88°. High 87°, low 70°.

Pressure29.91 inHg
Wind10.7 mph W
Humidity70%
Visibility6.2 mi
Dew point72°
Sun, 0989° / 66°0.06Light rain
89 °Light rain

Castalia, Sunday, 9 August

Light rain. High 89°, low 66°.

Pressure30.03 inHg
Wind6.6 mph SW
Humidity56%
Visibility6.2 mi
Dew point61°
Mon, 1086° / 69°0.55Heavy rain
86 °Heavy rain

Castalia, Monday, 10 August

Heavy rain. High 86°, low 69°.

Pressure29.94 inHg
Wind16.2 mph W
Humidity74%
Visibility6.2 mi
Dew point73°
Tue, 1182° / 67°0.24Rain
82 °Rain

Castalia, Tuesday, 11 August

Rain. High 82°, low 67°.

Pressure29.88 inHg
Wind19.2 mph SW
Humidity84%
Visibility6.2 mi
Dew point71°
Wed, 1279° / 69°0.07Light rain
79 °Light rain

Castalia, Wednesday, 12 August

Light rain. High 79°, low 69°.

Pressure29.80 inHg
Wind5.3 mph NW
Humidity80%
Visibility6.2 mi
Dew point70°
Thu, 1369° / 64°0.01Light rain
69 °Light rain

Castalia, Thursday, 13 August

Light rain. High 69°, low 64°.

Pressure29.94 inHg
Wind15.2 mph NE
Humidity78%
Visibility—
Dew point61°
Fri, 1470° / 60°0.06Light rain
70 °Light rain

Castalia, Friday, 14 August

Light rain. High 70°, low 60°.

Pressure30.12 inHg
Wind11.9 mph N
Humidity59%
Visibility—
Dew point53°
Sat, 1571° / 58°0Overcast
71 °Overcast

Castalia, Saturday, 15 August

Overcast. High 71°, low 58°.

Pressure30.33 inHg
Wind8.2 mph S
Humidity53%
Visibility—
Dew point52°
Sun, 1675° / 56°0Overcast
75 °Overcast

Castalia, Sunday, 16 August

Overcast. High 75°, low 56°.

Pressure30.27 inHg
Wind7.5 mph S
Humidity54%
Visibility—
Dew point54°
Mon, 1777° / 58°0.04Light rain
77 °Light rain

Castalia, Monday, 17 August

Light rain. High 77°, low 58°.

Pressure30.06 inHg
Wind9.6 mph SW
Humidity57%
Visibility—
Dew point59°
Tue, 1878° / 68°0.06Light rain
78 °Light rain

Castalia, Tuesday, 18 August

Light rain. High 78°, low 68°.

Pressure29.97 inHg
Wind10.7 mph N
Humidity74%
Visibility—
Dew point66°
Wed, 1974° / 65°0Overcast
74 °Overcast

Castalia, Wednesday, 19 August

Overcast. High 74°, low 65°.

Pressure30.00 inHg
Wind8.3 mph E
Humidity58%
Visibility—
Dew point58°
Thu, 2078° / 65°0.15Light rain
78 °Light rain

Castalia, Thursday, 20 August

Light rain. High 78°, low 65°.

Pressure29.85 inHg
Wind9.8 mph SE
Humidity70%
Visibility—
Dew point66°
Fri, 2176° / 67°0Overcast
76 °Overcast

Castalia, Friday, 21 August

Overcast. High 76°, low 67°.

Pressure29.88 inHg
Wind10.6 mph N
Humidity62%
Visibility—
Dew point60°
Sat, 2273° / 63°0.15Light rain
73 °Light rain

Castalia, Saturday, 22 August

Light rain. High 73°, low 63°.

Pressure29.88 inHg
Wind15.4 mph N
Humidity80%
Visibility—
Dew point57°
Sun, 2365° / 56°0Partly cloudy
65 °Partly cloudy

Castalia, Sunday, 23 August

Partly cloudy. High 65°, low 56°.

Pressure30.21 inHg
Wind16.6 mph N
Humidity56%
Visibility—
Dew point47°

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.