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As of 00:29 EDT

Weather in Collinsville, PA

73°Current weather

Collinsville, Sunday, 9 August, 00:29

Partly cloudy. Feels like 74°. High 86°, low 70°.

Pressure29.97 inHg
Wind5.8 mph W
Humidity93%
Visibility6.2 mi
Dew point71°
Mon, 1086° / 71°0.15Rain
86 °Rain

Collinsville, Monday, 10 August

Rain. High 86°, low 71°.

Pressure30.00 inHg
Wind5.9 mph NW
Humidity55%
Visibility6.2 mi
Dew point65°
Tue, 1185° / 67°0.33Rain
85 °Rain

Collinsville, Tuesday, 11 August

Rain. High 85°, low 67°.

Pressure29.94 inHg
Wind6.8 mph NW
Humidity63%
Visibility6.2 mi
Dew point68°
Wed, 1284° / 68°0.09Light rain
84 °Light rain

Collinsville, Wednesday, 12 August

Light rain. High 84°, low 68°.

Pressure29.77 inHg
Wind10 mph W
Humidity73%
Visibility6.2 mi
Dew point68°
Thu, 1379° / 62°0.01Light rain
79 °Light rain

Collinsville, Thursday, 13 August

Light rain. High 79°, low 62°.

Pressure29.83 inHg
Wind14.6 mph NW
Humidity42%
Visibility—
Dew point53°
Fri, 1476° / 57°0Mostly clear
76 °Mostly clear

Collinsville, Friday, 14 August

Mostly clear. High 76°, low 57°.

Pressure30.06 inHg
Wind8.9 mph N
Humidity43%
Visibility—
Dew point49°
Sat, 1576° / 56°0Clear
76 °Clear

Collinsville, Saturday, 15 August

Clear. High 76°, low 56°.

Pressure30.18 inHg
Wind13.2 mph N
Humidity43%
Visibility—
Dew point49°
Sun, 1677° / 56°0Overcast
77 °Overcast

Collinsville, Sunday, 16 August

Overcast. High 77°, low 56°.

Pressure30.18 inHg
Wind5.9 mph SE
Humidity47%
Visibility—
Dew point53°
Mon, 1778° / 64°0.21Rain
78 °Rain

Collinsville, Monday, 17 August

Rain. High 78°, low 64°.

Pressure30.06 inHg
Wind11.6 mph S
Humidity57%
Visibility—
Dew point60°
Tue, 1866° / 62°0.34Rain
66 °Rain

Collinsville, Tuesday, 18 August

Rain. High 66°, low 62°.

Pressure30.06 inHg
Wind7.8 mph SE
Humidity96%
Visibility—
Dew point64°
Wed, 1975° / 64°0.06Light rain
75 °Light rain

Collinsville, Wednesday, 19 August

Light rain. High 75°, low 64°.

Pressure29.91 inHg
Wind12.4 mph S
Humidity94%
Visibility—
Dew point66°
Thu, 2075° / 63°0.56Rain
75 °Rain

Collinsville, Thursday, 20 August

Rain. High 75°, low 63°.

Pressure29.71 inHg
Wind15.9 mph NW
Humidity55%
Visibility—
Dew point56°
Fri, 2176° / 55°0Clear
76 °Clear

Collinsville, Friday, 21 August

Clear. High 76°, low 55°.

Pressure29.88 inHg
Wind13.2 mph NW
Humidity42%
Visibility—
Dew point48°
Sat, 2276° / 53°0Partly cloudy
76 °Partly cloudy

Collinsville, Saturday, 22 August

Partly cloudy. High 76°, low 53°.

Pressure30.09 inHg
Wind6.3 mph SE
Humidity38%
Visibility—
Dew point46°
Sun, 2382° / 61°0Light rain
82 °Light rain

Collinsville, Sunday, 23 August

Light rain. High 82°, low 61°.

Pressure29.94 inHg
Wind12.5 mph S
Humidity64%
Visibility—
Dew point65°
Mon, 2484° / 69°0Clear
84 °Clear

Collinsville, Monday, 24 August

Clear. High 84°, low 69°.

Pressure29.91 inHg
Wind12.1 mph NW
Humidity41%
Visibility—
Dew point56°

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, PA 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, PA 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.