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As of 08:44 CDT

Weather in Island Grove, IL

77°Current weather

Island Grove, Sunday, 9 August, 08:44

Partly cloudy. Feels like 78°. High 93°, low 71°.

Pressure30.00 inHg
Wind11.6 mph S
Humidity85%
Visibility6.2 mi
Dew point72°
Mon, 1096° / 78°0Overcast
96 °Overcast

Island Grove, Monday, 10 August

Overcast. High 96°, low 78°.

Pressure29.91 inHg
Wind12.1 mph SW
Humidity50%
Visibility6.2 mi
Dew point69°
Tue, 1197° / 72°0.24Rain
97 °Rain

Island Grove, Tuesday, 11 August

Rain. High 97°, low 72°.

Pressure29.88 inHg
Wind15.7 mph SW
Humidity54%
Visibility6.2 mi
Dew point70°
Wed, 1293° / 72°0.06Light rain
93 °Light rain

Island Grove, Wednesday, 12 August

Light rain. High 93°, low 72°.

Pressure29.83 inHg
Wind5.1 mph NW
Humidity50%
Visibility6.2 mi
Dew point68°
Thu, 1383° / 70°1.27Heavy rain
83 °Heavy rain

Island Grove, Thursday, 13 August

Heavy rain. High 83°, low 70°.

Pressure29.88 inHg
Wind16.3 mph E
Humidity71%
Visibility—
Dew point71°
Fri, 1477° / 68°0.42Rain
77 °Rain

Island Grove, Friday, 14 August

Rain. High 77°, low 68°.

Pressure30.03 inHg
Wind13.2 mph E
Humidity84%
Visibility—
Dew point69°
Sat, 1585° / 67°0.03Light rain
85 °Light rain

Island Grove, Saturday, 15 August

Light rain. High 85°, low 67°.

Pressure30.09 inHg
Wind13.3 mph SE
Humidity73%
Visibility—
Dew point70°
Sun, 1683° / 68°0Overcast
83 °Overcast

Island Grove, Sunday, 16 August

Overcast. High 83°, low 68°.

Pressure30.03 inHg
Wind14.4 mph NW
Humidity71%
Visibility—
Dew point71°
Mon, 1779° / 61°0Partly cloudy
79 °Partly cloudy

Island Grove, Monday, 17 August

Partly cloudy. High 79°, low 61°.

Pressure30.09 inHg
Wind8.5 mph NE
Humidity57%
Visibility—
Dew point59°
Tue, 1887° / 64°0Overcast
87 °Overcast

Island Grove, Tuesday, 18 August

Overcast. High 87°, low 64°.

Pressure29.85 inHg
Wind12 mph S
Humidity64%
Visibility—
Dew point67°
Wed, 1985° / 67°0Clear
85 °Clear

Island Grove, Wednesday, 19 August

Clear. High 85°, low 67°.

Pressure29.85 inHg
Wind13.6 mph NW
Humidity53%
Visibility—
Dew point64°
Thu, 2081° / 61°0Clear
81 °Clear

Island Grove, Thursday, 20 August

Clear. High 81°, low 61°.

Pressure29.97 inHg
Wind6 mph N
Humidity54%
Visibility—
Dew point59°
Fri, 2188° / 63°0Partly cloudy
88 °Partly cloudy

Island Grove, Friday, 21 August

Partly cloudy. High 88°, low 63°.

Pressure29.83 inHg
Wind14.5 mph S
Humidity56%
Visibility—
Dew point63°
Sat, 2288° / 68°0Clear
88 °Clear

Island Grove, Saturday, 22 August

Clear. High 88°, low 68°.

Pressure29.83 inHg
Wind15.7 mph N
Humidity48%
Visibility—
Dew point64°
Sun, 2381° / 60°0Clear
81 °Clear

Island Grove, Sunday, 23 August

Clear. High 81°, low 60°.

Pressure30.15 inHg
Wind9.4 mph NE
Humidity43%
Visibility—
Dew point53°
Mon, 2484° / 59°0Clear
84 °Clear

Island Grove, Monday, 24 August

Clear. High 84°, low 59°.

Pressure30.21 inHg
Wind7.6 mph SE
Humidity38%
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 Island 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 Island 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.