As of 23:46 EDT

Weather in Castalia, OH

51°Current weather

Castalia, Sunday, 25 October, 23:46

Fog. Feels like 50°. High 69°, low 40°.

Pressure30.36 inHg
Wind1 mph S
Humidity79%
Visibility3.0 mi
Dew point45°
Mon, 2669° / 47°0Overcast
69 °Overcast

Castalia, Monday, 26 October

Overcast. High 69°, low 47°.

Pressure30.33 inHg
Wind5.6 mph SW
Humidity59%
Visibility6.2 mi
Dew point48°
Tue, 2764° / 48°0Overcast
64 °Overcast

Castalia, Tuesday, 27 October

Overcast. High 64°, low 48°.

Pressure30.36 inHg
Wind8.3 mph E
Humidity70%
Visibility6.2 mi
Dew point49°
Wed, 2867° / 52°0.03Light rain
67 °Light rain

Castalia, Wednesday, 28 October

Light rain. High 67°, low 52°.

Pressure30.27 inHg
Wind2.2 mph S
Humidity70%
Visibility6.2 mi
Dew point53°
Thu, 2971° / 53°0Overcast
71 °Overcast

Castalia, Thursday, 29 October

Overcast. High 71°, low 53°.

Pressure30.15 inHg
Wind9.7 mph SW
Humidity59%
Visibility6.2 mi
Dew point51°
Fri, 3061° / 53°0Overcast
61 °Overcast

Castalia, Friday, 30 October

Overcast. High 61°, low 53°.

Pressure30.21 inHg
Wind6.8 mph N
Humidity85%
Visibility—
Dew point56°
Sat, 3163° / 51°0Overcast
63 °Overcast

Castalia, Saturday, 31 October

Overcast. High 63°, low 51°.

Pressure30.24 inHg
Wind6.9 mph E
Humidity65%
Visibility—
Dew point49°
Sun, 0162° / 47°0Overcast
62 °Overcast

Castalia, Sunday, 1 November

Overcast. High 62°, low 47°.

Pressure30.18 inHg
Wind9.6 mph E
Humidity33%
Visibility—
Dew point31°
Mon, 0257° / 53°0.51Rain
57 °Rain

Castalia, Monday, 2 November

Rain. High 57°, low 53°.

Pressure29.77 inHg
Wind19.7 mph N
Humidity91%
Visibility—
Dew point53°
Tue, 0355° / 49°0Overcast
55 °Overcast

Castalia, Tuesday, 3 November

Overcast. High 55°, low 49°.

Pressure30.00 inHg
Wind17.5 mph N
Humidity71%
Visibility—
Dew point45°
Wed, 0449° / 42°0.34Rain
49 °Rain

Castalia, Wednesday, 4 November

Rain. High 49°, low 42°.

Pressure30.24 inHg
Wind18.4 mph NE
Humidity91%
Visibility—
Dew point40°
Thu, 0546° / 40°0Overcast
46 °Overcast

Castalia, Thursday, 5 November

Overcast. High 46°, low 40°.

Pressure30.47 inHg
Wind14.5 mph NE
Humidity54%
Visibility—
Dew point30°
Fri, 0649° / 33°0Clear
49 °Clear

Castalia, Friday, 6 November

Clear. High 49°, low 33°.

Pressure30.33 inHg
Wind9.1 mph S
Humidity31%
Visibility—
Dew point17°
Sat, 0757° / 38°0.04Light rain
57 °Light rain

Castalia, Saturday, 7 November

Light rain. High 57°, low 38°.

Pressure30.03 inHg
Wind21 mph SW
Humidity40%
Visibility—
Dew point29°
Sun, 0854° / 45°0.34Rain
54 °Rain

Castalia, Sunday, 8 November

Rain. High 54°, low 45°.

Pressure29.83 inHg
Wind22.7 mph NW
Humidity93%
Visibility—
Dew point52°
Mon, 0944° / 38°0.01Light rain
44 °Light rain

Castalia, Monday, 9 November

Light rain. High 44°, low 38°.

Pressure30.33 inHg
Wind19.1 mph N
Humidity58%
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.