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As of 13:22 CDT

Weather in Glenn, IL

83°Current weather

Glenn, Saturday, 8 August, 13:22

Mostly clear. Feels like 87°. High 86°, low 69°.

Pressure30.00 inHg
Wind8 mph W
Humidity65%
Visibility6.2 mi
Dew point68°
Sun, 0984° / 67°1.44Heavy rain
84 °Heavy rain

Glenn, Sunday, 9 August

Heavy rain. High 84°, low 67°.

Pressure29.88 inHg
Wind11.6 mph NW
Humidity92%
Visibility0.1 mi
Dew point71°
Mon, 1091° / 73°0.1Rain
91 °Rain

Glenn, Monday, 10 August

Rain. High 91°, low 73°.

Pressure29.88 inHg
Wind7.2 mph SW
Humidity54%
Visibility6.2 mi
Dew point68°
Tue, 1184° / 72°0.09Light rain
84 °Light rain

Glenn, Tuesday, 11 August

Light rain. High 84°, low 72°.

Pressure29.77 inHg
Wind12.7 mph SW
Humidity57%
Visibility6.2 mi
Dew point67°
Wed, 1288° / 68°0.05Light rain
88 °Light rain

Glenn, Wednesday, 12 August

Light rain. High 88°, low 68°.

Pressure29.85 inHg
Wind1.2 mph S
Humidity55%
Visibility6.2 mi
Dew point65°
Thu, 1373° / 65°0.11Light rain
73 °Light rain

Glenn, Thursday, 13 August

Light rain. High 73°, low 65°.

Pressure29.91 inHg
Wind7.3 mph NE
Humidity73%
Visibility—
Dew point59°
Fri, 1479° / 62°0Clear
79 °Clear

Glenn, Friday, 14 August

Clear. High 79°, low 62°.

Pressure30.15 inHg
Wind9 mph W
Humidity32%
Visibility—
Dew point44°
Sat, 1580° / 62°0Overcast
80 °Overcast

Glenn, Saturday, 15 August

Overcast. High 80°, low 62°.

Pressure30.18 inHg
Wind7.8 mph SW
Humidity42%
Visibility—
Dew point52°
Sun, 1681° / 66°0.02Light rain
81 °Light rain

Glenn, Sunday, 16 August

Light rain. High 81°, low 66°.

Pressure30.15 inHg
Wind7.3 mph S
Humidity40%
Visibility—
Dew point53°
Mon, 1776° / 65°0.07Light rain
76 °Light rain

Glenn, Monday, 17 August

Light rain. High 76°, low 65°.

Pressure30.00 inHg
Wind6.1 mph E
Humidity77%
Visibility—
Dew point62°
Tue, 1882° / 69°0.1Light rain
82 °Light rain

Glenn, Tuesday, 18 August

Light rain. High 82°, low 69°.

Pressure29.88 inHg
Wind7.8 mph SW
Humidity62%
Visibility—
Dew point66°
Wed, 1977° / 64°0.03Light rain
77 °Light rain

Glenn, Wednesday, 19 August

Light rain. High 77°, low 64°.

Pressure30.00 inHg
Wind12.1 mph NE
Humidity80%
Visibility—
Dew point62°
Thu, 2069° / 61°0Overcast
69 °Overcast

Glenn, Thursday, 20 August

Overcast. High 69°, low 61°.

Pressure30.24 inHg
Wind11.3 mph NE
Humidity39%
Visibility—
Dew point42°
Fri, 2175° / 57°0Partly cloudy
75 °Partly cloudy

Glenn, Friday, 21 August

Partly cloudy. High 75°, low 57°.

Pressure30.21 inHg
Wind9.5 mph W
Humidity31%
Visibility—
Dew point40°
Sat, 2277° / 59°0Clear
77 °Clear

Glenn, Saturday, 22 August

Clear. High 77°, low 59°.

Pressure30.12 inHg
Wind9.2 mph W
Humidity35%
Visibility—
Dew point45°
Sun, 2380° / 61°0Clear
80 °Clear

Glenn, Sunday, 23 August

Clear. High 80°, low 61°.

Pressure30.09 inHg
Wind7.1 mph W
Humidity40%
Visibility—
Dew point51°

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 Glenn, IL 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 Glenn, IL 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.