As of 20:00 EDT

Weather in Collinsville, OH

56°Current weather

Collinsville, Thursday, 22 October, 20:00

Clear. Feels like 55°. High 70°, low 41°.

Pressure30.24 inHg
Wind5.9 mph NE
Humidity75%
Visibility6.2 mi
Dew point47°
Fri, 2370° / 43°0Clear
70 °Clear

Collinsville, Friday, 23 October

Clear. High 70°, low 43°.

Pressure30.33 inHg
Wind5.8 mph E
Humidity51%
Visibility6.2 mi
Dew point44°
Sat, 2467° / 42°0Clear
67 °Clear

Collinsville, Saturday, 24 October

Clear. High 67°, low 42°.

Pressure30.45 inHg
Wind3.2 mph SE
Humidity56%
Visibility6.2 mi
Dew point46°
Sun, 2569° / 44°0Clear
69 °Clear

Collinsville, Sunday, 25 October

Clear. High 69°, low 44°.

Pressure30.47 inHg
Wind3 mph SE
Humidity57%
Visibility6.2 mi
Dew point47°
Mon, 2669° / 47°0Overcast
69 °Overcast

Collinsville, Monday, 26 October

Overcast. High 69°, low 47°.

Pressure30.39 inHg
Wind0.9 mph S
Humidity50%
Visibility6.2 mi
Dew point45°
Tue, 2765° / 49°0Overcast
65 °Overcast

Collinsville, Tuesday, 27 October

Overcast. High 65°, low 49°.

Pressure30.33 inHg
Wind8.1 mph NE
Humidity54%
Visibility—
Dew point46°
Wed, 2871° / 51°0Partly cloudy
71 °Partly cloudy

Collinsville, Wednesday, 28 October

Partly cloudy. High 71°, low 51°.

Pressure30.15 inHg
Wind6.9 mph E
Humidity40%
Visibility—
Dew point43°
Thu, 2967° / 50°0Overcast
67 °Overcast

Collinsville, Thursday, 29 October

Overcast. High 67°, low 50°.

Pressure30.18 inHg
Wind6.1 mph W
Humidity47%
Visibility—
Dew point43°
Fri, 3074° / 51°0Overcast
74 °Overcast

Collinsville, Friday, 30 October

Overcast. High 74°, low 51°.

Pressure30.00 inHg
Wind14.4 mph SW
Humidity39%
Visibility—
Dew point44°
Sat, 3160° / 55°0.03Light rain
60 °Light rain

Collinsville, Saturday, 31 October

Light rain. High 60°, low 55°.

Pressure30.09 inHg
Wind7.1 mph NE
Humidity89%
Visibility—
Dew point55°
Sun, 0156° / 54°0.72Rain
56 °Rain

Collinsville, Sunday, 1 November

Rain. High 56°, low 54°.

Pressure29.97 inHg
Wind12.7 mph N
Humidity96%
Visibility—
Dew point54°
Mon, 0256° / 44°0.28Rain
56 °Rain

Collinsville, Monday, 2 November

Rain. High 56°, low 44°.

Pressure30.03 inHg
Wind17.2 mph N
Humidity52%
Visibility—
Dew point38°
Tue, 0354° / 39°0Clear
54 °Clear

Collinsville, Tuesday, 3 November

Clear. High 54°, low 39°.

Pressure30.33 inHg
Wind6.7 mph NE
Humidity51%
Visibility—
Dew point35°
Wed, 0454° / 38°0Overcast
54 °Overcast

Collinsville, Wednesday, 4 November

Overcast. High 54°, low 38°.

Pressure30.47 inHg
Wind6.7 mph NE
Humidity37%
Visibility—
Dew point26°
Thu, 0556° / 38°0Overcast
56 °Overcast

Collinsville, Thursday, 5 November

Overcast. High 56°, low 38°.

Pressure30.45 inHg
Wind5.4 mph NE
Humidity44%
Visibility—
Dew point32°
Fri, 0658° / 45°0Overcast
58 °Overcast

Collinsville, Friday, 6 November

Overcast. High 58°, low 45°.

Pressure30.27 inHg
Wind2.9 mph SE
Humidity45%
Visibility—
Dew point33°

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.