As of 08:11 EDT

Weather in Collinsville, OH

43°

Collinsville, Tuesday, 20 October, 08:11

Clear. Feels like 40°. High 72°, low 41°.

Pressure30.36 inHg

Wind4.9 mph NE

Humidity90%

Visibility6.2 mi

Dew point40°

See detailed hourly forecast

Wed, 2172° / 40°

72 °

Collinsville, Wednesday, 21 October

Clear. High 72°, low 40°.

Pressure30.27 inHg

Wind1.3 mph N

Humidity54%

Visibility6.2 mi

Dew point47°

Thu, 2267° / 47°

67 °

Collinsville, Thursday, 22 October

Clear. High 67°, low 47°.

Pressure30.27 inHg

Wind5.9 mph NE

Humidity54%

Visibility6.2 mi

Dew point47°

Fri, 2362° / 45°

62 °

Collinsville, Friday, 23 October

Mostly clear. High 62°, low 45°.

Pressure30.39 inHg

Wind7.4 mph E

Humidity65%

Visibility6.2 mi

Dew point46°

Sat, 2465° / 41°

65 °

Collinsville, Saturday, 24 October

Clear. High 65°, low 41°.

Pressure30.45 inHg

Wind6.6 mph E

Humidity36%

Visibility—

Dew point33°

Sun, 2570° / 45°

70 °

Collinsville, Sunday, 25 October

Overcast. High 70°, low 45°.

Pressure30.45 inHg

Wind4.6 mph SW

Humidity42%

Visibility—

Dew point42°

Mon, 2672° / 53°

72 °

Collinsville, Monday, 26 October

Overcast. High 72°, low 53°.

Pressure30.24 inHg

Wind11.3 mph SW

Humidity38%

Visibility—

Dew point43°

Tue, 2757° / 44°

57 °

Collinsville, Tuesday, 27 October

Overcast. High 57°, low 44°.

Pressure30.24 inHg

Wind11.9 mph NW

Humidity59%

Visibility—

Dew point40°

Wed, 2846° / 33°

46 °

Collinsville, Wednesday, 28 October

Clear. High 46°, low 33°.

Pressure30.42 inHg

Wind11.8 mph NW

Humidity34%

Visibility—

Dew point17°

Thu, 2951° / 27°

51 °

Collinsville, Thursday, 29 October

Clear. High 51°, low 27°.

Pressure30.24 inHg

Wind11.7 mph W

Humidity21%

Visibility—

Dew point9°

Fri, 3042° / 39°

0.09

42 °

Collinsville, Friday, 30 October

Light rain. High 42°, low 39°.

Pressure30.15 inHg

Wind8.9 mph SW

Humidity82%

Visibility—

Dew point36°

Sat, 3151° / 42°

0.03

51 °

Collinsville, Saturday, 31 October

Light rain. High 51°, low 42°.

Pressure30.15 inHg

Wind6.5 mph W

Humidity87%

Visibility—

Dew point42°

Sun, 0154° / 37°

54 °

Collinsville, Sunday, 1 November

Partly cloudy. High 54°, low 37°.

Pressure30.27 inHg

Wind6.7 mph N

Humidity41%

Visibility—

Dew point29°

Mon, 0253° / 39°

53 °

Collinsville, Monday, 2 November

Overcast. High 53°, low 39°.

Pressure30.18 inHg

Wind9.5 mph NE

Humidity38%

Visibility—

Dew point26°

Tue, 0354° / 36°

54 °

Collinsville, Tuesday, 3 November

Overcast. High 54°, low 36°.

Pressure30.09 inHg

Wind11.9 mph NE

Humidity35%

Visibility—

Dew point25°

Wed, 0457° / 36°

57 °

Collinsville, Wednesday, 4 November

Clear. High 57°, low 36°.

Pressure30.03 inHg

Wind8.3 mph NW

Humidity39%

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 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.