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As of 01:40 CDT

Weather in Cottage Grove, IL

70°Current weather

Cottage Grove, Sunday, 9 August, 01:40

Clear. Feels like 71°. High 92°, low 70°.

Pressure30.03 inHg
Wind4.9 mph S
Humidity96%
Visibility6.2 mi
Dew point69°
Mon, 1096° / 76°0Clear
96 °Clear

Cottage Grove, Monday, 10 August

Clear. High 96°, low 76°.

Pressure30.00 inHg
Wind13.8 mph SW
Humidity46%
Visibility6.2 mi
Dew point69°
Tue, 1199° / 77°0Mostly clear
99 °Mostly clear

Cottage Grove, Tuesday, 11 August

Mostly clear. High 99°, low 77°.

Pressure29.94 inHg
Wind14.6 mph SW
Humidity40%
Visibility6.2 mi
Dew point68°
Wed, 12101° / 72°0.29Rain
101 °Rain

Cottage Grove, Wednesday, 12 August

Rain. High 101°, low 72°.

Pressure29.83 inHg
Wind14.4 mph SW
Humidity38%
Visibility6.2 mi
Dew point68°
Thu, 1392° / 71°0.29Light rain
92 °Light rain

Cottage Grove, Thursday, 13 August

Light rain. High 92°, low 71°.

Pressure29.91 inHg
Wind14.1 mph NE
Humidity60%
Visibility—
Dew point70°
Fri, 1482° / 69°0.17Rain
82 °Rain

Cottage Grove, Friday, 14 August

Rain. High 82°, low 69°.

Pressure30.03 inHg
Wind12.2 mph NE
Humidity81%
Visibility—
Dew point68°
Sat, 1590° / 67°0.06Light rain
90 °Light rain

Cottage Grove, Saturday, 15 August

Light rain. High 90°, low 67°.

Pressure30.12 inHg
Wind10.2 mph E
Humidity63%
Visibility—
Dew point69°
Sun, 16101° / 70°0Overcast
101 °Overcast

Cottage Grove, Sunday, 16 August

Overcast. High 101°, low 70°.

Pressure29.97 inHg
Wind12.7 mph NW
Humidity31%
Visibility—
Dew point62°
Mon, 1789° / 72°0.09Light rain
89 °Light rain

Cottage Grove, Monday, 17 August

Light rain. High 89°, low 72°.

Pressure30.03 inHg
Wind7.2 mph NE
Humidity58%
Visibility—
Dew point69°
Tue, 1891° / 70°0.01Light rain
91 °Light rain

Cottage Grove, Tuesday, 18 August

Light rain. High 91°, low 70°.

Pressure29.97 inHg
Wind8.5 mph E
Humidity49%
Visibility—
Dew point65°
Wed, 1999° / 73°0Overcast
99 °Overcast

Cottage Grove, Wednesday, 19 August

Overcast. High 99°, low 73°.

Pressure29.94 inHg
Wind11.3 mph SE
Humidity44%
Visibility—
Dew point69°
Thu, 20112° / 83°0Overcast
112 °Overcast

Cottage Grove, Thursday, 20 August

Overcast. High 112°, low 83°.

Pressure29.85 inHg
Wind12 mph S
Humidity27%
Visibility—
Dew point62°
Fri, 21112° / 82°0Mostly clear
112 °Mostly clear

Cottage Grove, Friday, 21 August

Mostly clear. High 112°, low 82°.

Pressure29.83 inHg
Wind13.2 mph SW
Humidity16%
Visibility—
Dew point52°
Sat, 22110° / 79°0Clear
110 °Clear

Cottage Grove, Saturday, 22 August

Clear. High 110°, low 79°.

Pressure29.85 inHg
Wind10.1 mph SE
Humidity23%
Visibility—
Dew point59°
Sun, 23107° / 79°0.09Light rain
107 °Light rain

Cottage Grove, Sunday, 23 August

Light rain. High 107°, low 79°.

Pressure29.88 inHg
Wind11.9 mph N
Humidity26%
Visibility—
Dew point60°
Mon, 24101° / 78°0.02Light rain
101 °Light rain

Cottage Grove, Monday, 24 August

Light rain. High 101°, low 78°.

Pressure29.97 inHg
Wind9.5 mph NE
Humidity38%
Visibility—
Dew point66°

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 Cottage Grove, 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 Cottage Grove, 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.