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As of 04:24 EDT

Weather in Glen Carbon, PA

68°Current weather

Glen Carbon, Sunday, 9 August, 04:24

Mostly clear. Feels like 69°. High 82°, low 68°.

Pressure29.94 inHg
Wind3.9 mph W
Humidity98%
Visibility6.2 mi
Dew point67°
Mon, 1081° / 67°0Overcast
81 °Overcast

Glen Carbon, Monday, 10 August

Overcast. High 81°, low 67°.

Pressure30.00 inHg
Wind7.2 mph W
Humidity51%
Visibility6.2 mi
Dew point63°
Tue, 1183° / 66°0.93Heavy rain
83 °Heavy rain

Glen Carbon, Tuesday, 11 August

Heavy rain. High 83°, low 66°.

Pressure29.91 inHg
Wind11.5 mph NW
Humidity55%
Visibility6.2 mi
Dew point62°
Wed, 1280° / 64°0.03Light rain
80 °Light rain

Glen Carbon, Wednesday, 12 August

Light rain. High 80°, low 64°.

Pressure29.77 inHg
Wind8.9 mph W
Humidity63%
Visibility6.2 mi
Dew point64°
Thu, 1378° / 59°0Light rain
78 °Light rain

Glen Carbon, Thursday, 13 August

Light rain. High 78°, low 59°.

Pressure29.80 inHg
Wind13 mph NW
Humidity35%
Visibility—
Dew point47°
Fri, 1473° / 50°0Clear
73 °Clear

Glen Carbon, Friday, 14 August

Clear. High 73°, low 50°.

Pressure30.03 inHg
Wind11.1 mph NW
Humidity37%
Visibility—
Dew point43°
Sat, 1574° / 49°0Mostly clear
74 °Mostly clear

Glen Carbon, Saturday, 15 August

Mostly clear. High 74°, low 49°.

Pressure30.15 inHg
Wind13 mph NW
Humidity37%
Visibility—
Dew point42°
Sun, 1675° / 50°0Overcast
75 °Overcast

Glen Carbon, Sunday, 16 August

Overcast. High 75°, low 50°.

Pressure30.15 inHg
Wind5.4 mph NW
Humidity35%
Visibility—
Dew point44°
Mon, 1778° / 57°0.01Light rain
78 °Light rain

Glen Carbon, Monday, 17 August

Light rain. High 78°, low 57°.

Pressure30.00 inHg
Wind7.3 mph S
Humidity42%
Visibility—
Dew point51°
Tue, 1879° / 59°0.07Light rain
79 °Light rain

Glen Carbon, Tuesday, 18 August

Light rain. High 79°, low 59°.

Pressure30.03 inHg
Wind2.7 mph W
Humidity55%
Visibility—
Dew point59°
Wed, 1981° / 60°0Mostly clear
81 °Mostly clear

Glen Carbon, Wednesday, 19 August

Mostly clear. High 81°, low 60°.

Pressure30.06 inHg
Wind7.4 mph S
Humidity46%
Visibility—
Dew point56°
Thu, 2084° / 61°0Partly cloudy
84 °Partly cloudy

Glen Carbon, Thursday, 20 August

Partly cloudy. High 84°, low 61°.

Pressure30.03 inHg
Wind9.4 mph S
Humidity45%
Visibility—
Dew point58°
Fri, 2189° / 65°0.2Rain
89 °Rain

Glen Carbon, Friday, 21 August

Rain. High 89°, low 65°.

Pressure29.85 inHg
Wind10 mph SW
Humidity52%
Visibility—
Dew point65°
Sat, 2287° / 68°0Clear
87 °Clear

Glen Carbon, Saturday, 22 August

Clear. High 87°, low 68°.

Pressure29.94 inHg
Wind8.3 mph N
Humidity34%
Visibility—
Dew point53°
Sun, 2392° / 64°0.01Light rain
92 °Light rain

Glen Carbon, Sunday, 23 August

Light rain. High 92°, low 64°.

Pressure29.94 inHg
Wind6.4 mph SW
Humidity36%
Visibility—
Dew point58°
Mon, 2489° / 70°0.29Rain
89 °Rain

Glen Carbon, Monday, 24 August

Rain. High 89°, low 70°.

Pressure29.97 inHg
Wind8.7 mph W
Humidity49%
Visibility—
Dew point65°

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 Glen Carbon, 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 Glen Carbon, 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.