As of 02:14 EDT

Weather in Collinsville, OH

49°

Collinsville, Wednesday, 21 October, 02:14

Clear. Feels like 47°. High 72°, low 42°.

Pressure30.27 inHg

Wind4.9 mph NE

Humidity82%

Visibility6.2 mi

Dew point43°

See detailed hourly forecast

Thu, 2271° / 42°

71 °

Collinsville, Thursday, 22 October

Clear. High 71°, low 42°.

Pressure30.24 inHg

Wind6.3 mph NE

Humidity51%

Visibility6.2 mi

Dew point46°

Fri, 2365° / 47°

65 °

Collinsville, Friday, 23 October

Partly cloudy. High 65°, low 47°.

Pressure30.36 inHg

Wind5.5 mph E

Humidity71%

Visibility6.2 mi

Dew point52°

Sat, 2465° / 44°

65 °

Collinsville, Saturday, 24 October

Clear. High 65°, low 44°.

Pressure30.45 inHg

Wind3.7 mph E

Humidity56%

Visibility6.2 mi

Dew point43°

Sun, 2568° / 45°

68 °

Collinsville, Sunday, 25 October

Overcast. High 68°, low 45°.

Pressure30.42 inHg

Wind3.9 mph E

Humidity47%

Visibility—

Dew point43°

Mon, 2671° / 47°

71 °

Collinsville, Monday, 26 October

Overcast. High 71°, low 47°.

Pressure30.27 inHg

Wind7.4 mph SW

Humidity39%

Visibility—

Dew point42°

Tue, 2757° / 43°

0.02

57 °

Collinsville, Tuesday, 27 October

Light rain. High 57°, low 43°.

Pressure30.21 inHg

Wind13.2 mph N

Humidity65%

Visibility—

Dew point44°

Wed, 2848° / 43°

0.04

48 °

Collinsville, Wednesday, 28 October

Light rain. High 48°, low 43°.

Pressure30.27 inHg

Wind10.4 mph NE

Humidity62%

Visibility—

Dew point33°

Thu, 2955° / 38°

55 °

Collinsville, Thursday, 29 October

Clear. High 55°, low 38°.

Pressure30.21 inHg

Wind8.1 mph NW

Humidity36%

Visibility—

Dew point26°

Fri, 3057° / 37°

57 °

Collinsville, Friday, 30 October

Clear. High 57°, low 37°.

Pressure30.24 inHg

Wind6.8 mph NE

Humidity38%

Visibility—

Dew point29°

Sat, 3169° / 38°

0.01

69 °

Collinsville, Saturday, 31 October

Light rain. High 69°, low 38°.

Pressure30.09 inHg

Wind11.7 mph S

Humidity44%

Visibility—

Dew point37°

Sun, 0163° / 53°

0.17

63 °

Collinsville, Sunday, 1 November

Light rain. High 63°, low 53°.

Pressure30.09 inHg

Wind10.7 mph S

Humidity59%

Visibility—

Dew point48°

Mon, 0269° / 48°

0.21

69 °

Collinsville, Monday, 2 November

Light rain. High 69°, low 48°.

Pressure30.06 inHg

Wind12.6 mph NW

Humidity49%

Visibility—

Dew point47°

Tue, 0355° / 41°

55 °

Collinsville, Tuesday, 3 November

Clear. High 55°, low 41°.

Pressure30.27 inHg

Wind8.3 mph N

Humidity44%

Visibility—

Dew point31°

Wed, 0455° / 40°

55 °

Collinsville, Wednesday, 4 November

Overcast. High 55°, low 40°.

Pressure30.15 inHg

Wind6.4 mph NE

Humidity35%

Visibility—

Dew point26°

Thu, 0554° / 37°

54 °

Collinsville, Thursday, 5 November

Clear. High 54°, low 37°.

Pressure30.36 inHg

Wind11.1 mph E

Humidity34%

Visibility—

Dew point24°

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.