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As of 15:32 EDT

Weather in Collinsville, OH

71°Current weather

Collinsville, Tuesday, 20 October, 15:32

Clear. Feels like 70°. High 72°, low 40°.

Pressure30.30 inHg
Wind3.4 mph N
Humidity48%
Visibility6.2 mi
Dew point47°
Wed, 2171° / 40°0Clear
71 °Clear

Collinsville, Wednesday, 21 October

Clear. High 71°, low 40°.

Pressure30.27 inHg
Wind0.5 mph N
Humidity55%
Visibility6.2 mi
Dew point46°
Thu, 2266° / 42°0Clear
66 °Clear

Collinsville, Thursday, 22 October

Clear. High 66°, low 42°.

Pressure30.27 inHg
Wind6.1 mph NE
Humidity55%
Visibility6.2 mi
Dew point47°
Fri, 2362° / 46°0Mostly clear
62 °Mostly clear

Collinsville, Friday, 23 October

Mostly clear. High 62°, low 46°.

Pressure30.39 inHg
Wind6.6 mph E
Humidity66%
Visibility6.2 mi
Dew point47°
Sat, 2465° / 41°0Mostly clear
65 °Mostly clear

Collinsville, Saturday, 24 October

Mostly clear. High 65°, low 41°.

Pressure30.45 inHg
Wind4 mph SE
Humidity52%
Visibility6.2 mi
Dew point39°
Sun, 2570° / 47°0Overcast
70 °Overcast

Collinsville, Sunday, 25 October

Overcast. High 70°, low 47°.

Pressure30.42 inHg
Wind5 mph SW
Humidity43%
Visibility—
Dew point44°
Mon, 2673° / 53°0Overcast
73 °Overcast

Collinsville, Monday, 26 October

Overcast. High 73°, low 53°.

Pressure30.18 inHg
Wind11.7 mph SW
Humidity35%
Visibility—
Dew point41°
Tue, 2760° / 38°0.02Light rain
60 °Light rain

Collinsville, Tuesday, 27 October

Light rain. High 60°, low 38°.

Pressure30.24 inHg
Wind15.5 mph NW
Humidity82%
Visibility—
Dew point41°
Wed, 2851° / 31°0Clear
51 °Clear

Collinsville, Wednesday, 28 October

Clear. High 51°, low 31°.

Pressure30.42 inHg
Wind6.5 mph W
Humidity33%
Visibility—
Dew point19°
Thu, 2957° / 32°0Clear
57 °Clear

Collinsville, Thursday, 29 October

Clear. High 57°, low 32°.

Pressure30.15 inHg
Wind15.3 mph SW
Humidity26%
Visibility—
Dew point19°
Fri, 3049° / 32°0Clear
49 °Clear

Collinsville, Friday, 30 October

Clear. High 49°, low 32°.

Pressure30.27 inHg
Wind15.9 mph NW
Humidity36%
Visibility—
Dew point21°
Sat, 3153° / 29°0Mostly clear
53 °Mostly clear

Collinsville, Saturday, 31 October

Mostly clear. High 53°, low 29°.

Pressure30.33 inHg
Wind7.3 mph S
Humidity30%
Visibility—
Dew point18°
Sun, 0157° / 38°0Overcast
57 °Overcast

Collinsville, Sunday, 1 November

Overcast. High 57°, low 38°.

Pressure30.12 inHg
Wind10.2 mph W
Humidity26%
Visibility—
Dew point20°
Mon, 0260° / 40°0Clear
60 °Clear

Collinsville, Monday, 2 November

Clear. High 60°, low 40°.

Pressure30.33 inHg
Wind5.4 mph W
Humidity49%
Visibility—
Dew point37°
Tue, 0364° / 40°0Partly cloudy
64 °Partly cloudy

Collinsville, Tuesday, 3 November

Partly cloudy. High 64°, low 40°.

Pressure30.33 inHg
Wind8.4 mph S
Humidity36%
Visibility—
Dew point32°
Wed, 0460° / 49°0.15Light rain
60 °Light rain

Collinsville, Wednesday, 4 November

Light rain. High 60°, low 49°.

Pressure30.12 inHg
Wind15 mph S
Humidity52%
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 Collinsville, 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 Collinsville, 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.