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As of 09:21 CDT

Weather in Glen Carbon, IL

79°Current weather

Glen Carbon, Sunday, 9 August, 09:21

Partly cloudy. Feels like 79°. High 96°, low 72°.

Pressure30.03 inHg
Wind1 mph W
Humidity87%
Visibility6.2 mi
Dew point74°

Two-week outlook for Glen Carbon, IL: week one averages a high of 93.6° and week two 89.5°, so week two runs 4° cooler than week one. Around 0.4 inches of precipitation are expected over the 14 days, across 2 wet days. The nearest weekend, August 9: 96°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (August 9 – August 15)93.6°72.7°0.3 in / 1 d—
2nd (August 16 – August 22)89.5°67.5°0.1 in / 1 d—

Weekend weather

Sun, August 9
Partly cloudy
96°72°
no precip.
Sat, August 15
Overcast
91°70°
no precip.
Sun, August 16
Clear
90°75°
no precip.
Sat, August 22
Clear
91°73°
no precip.
Mon, 10102° / 75°0Clear
102 °Clear

Glen Carbon, Monday, 10 August

Clear. High 102°, low 75°.

Pressure29.94 inHg
Wind10.7 mph SW
Humidity47%
Visibility6.2 mi
Dew point70°
Tue, 1199° / 75°0.01Light rain
99 °Light rain

Glen Carbon, Tuesday, 11 August

Light rain. High 99°, low 75°.

Pressure29.91 inHg
Wind7.5 mph SW
Humidity47%
Visibility6.2 mi
Dew point70°
Wed, 1291° / 75°0.04Light rain
91 °Light rain

Glen Carbon, Wednesday, 12 August

Light rain. High 91°, low 75°.

Pressure29.85 inHg
Wind5.5 mph NW
Humidity63%
Visibility6.2 mi
Dew point73°
Thu, 1390° / 71°0.22Rain
90 °Rain

Glen Carbon, Thursday, 13 August

Rain. High 90°, low 71°.

Pressure29.85 inHg
Wind16.6 mph SE
Humidity64%
Visibility—
Dew point70°
Fri, 1486° / 70°0Overcast
86 °Overcast

Glen Carbon, Friday, 14 August

Overcast. High 86°, low 70°.

Pressure29.97 inHg
Wind15.5 mph E
Humidity72%
Visibility—
Dew point72°
Sat, 1591° / 70°0Overcast
91 °Overcast

Glen Carbon, Saturday, 15 August

Overcast. High 91°, low 70°.

Pressure30.06 inHg
Wind13.1 mph E
Humidity64%
Visibility—
Dew point71°
Sun, 1690° / 75°0Clear
90 °Clear

Glen Carbon, Sunday, 16 August

Clear. High 90°, low 75°.

Pressure30.03 inHg
Wind13.2 mph N
Humidity65%
Visibility—
Dew point73°
Mon, 1780° / 64°0Overcast
80 °Overcast

Glen Carbon, Monday, 17 August

Overcast. High 80°, low 64°.

Pressure30.09 inHg
Wind8.2 mph NE
Humidity58%
Visibility—
Dew point61°
Tue, 1898° / 65°0.13Light rain
98 °Light rain

Glen Carbon, Tuesday, 18 August

Light rain. High 98°, low 65°.

Pressure29.83 inHg
Wind12.8 mph S
Humidity50%
Visibility—
Dew point65°
Wed, 1990° / 69°0Mostly clear
90 °Mostly clear

Glen Carbon, Wednesday, 19 August

Mostly clear. High 90°, low 69°.

Pressure29.83 inHg
Wind15.9 mph N
Humidity54%
Visibility—
Dew point69°
Thu, 2081° / 62°0Clear
81 °Clear

Glen Carbon, Thursday, 20 August

Clear. High 81°, low 62°.

Pressure29.94 inHg
Wind6.8 mph NE
Humidity57%
Visibility—
Dew point61°
Fri, 2195° / 64°0Clear
95 °Clear

Glen Carbon, Friday, 21 August

Clear. High 95°, low 64°.

Pressure29.80 inHg
Wind21.8 mph S
Humidity41%
Visibility—
Dew point60°
Sat, 2291° / 73°0Clear
91 °Clear

Glen Carbon, Saturday, 22 August

Clear. High 91°, low 73°.

Pressure29.83 inHg
Wind11.3 mph N
Humidity51%
Visibility—
Dew point67°

About this forecast

Can I plan a trip on a 2-week forecast?

Week one is solid for planning — accuracy is high. Week two shows the trend: go by the averages and the comparison with normal, and check the details closer to the date.

What does the "Vs normal" column mean?

It is the gap between the forecast and the climate normal for those same dates in Glen Carbon, IL, computed over 60 years. A positive value means the week runs warmer than usual.

Why are weekends shown separately?

Saturday and Sunday plans are what people check most, so we give them their own cards with temperature and precipitation.