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As of 22:55 CDT

Weather in Illiana, IL

72°Current weather

Illiana, Saturday, 8 August, 22:55

Clear. Feels like 73°. High 86°, low 71°.

Pressure30.00 inHg
Wind3.6 mph NE
Humidity94%
Visibility6.2 mi
Dew point70°
Sun, 0991° / 69°0Mostly clear
91 °Mostly clear

Illiana, Sunday, 9 August

Mostly clear. High 91°, low 69°.

Pressure30.00 inHg
Wind13 mph SW
Humidity76%
Visibility6.2 mi
Dew point75°
Mon, 1089° / 77°0.01Light rain
89 °Light rain

Illiana, Monday, 10 August

Light rain. High 89°, low 77°.

Pressure29.94 inHg
Wind11.2 mph SW
Humidity72%
Visibility6.2 mi
Dew point75°
Tue, 1182° / 71°0.22Rain
82 °Rain

Illiana, Tuesday, 11 August

Rain. High 82°, low 71°.

Pressure29.88 inHg
Wind2.7 mph N
Humidity85%
Visibility6.2 mi
Dew point74°
Wed, 1282° / 70°0.03Light rain
82 °Light rain

Illiana, Wednesday, 12 August

Light rain. High 82°, low 70°.

Pressure29.85 inHg
Wind2.6 mph NW
Humidity78%
Visibility6.2 mi
Dew point73°
Thu, 1378° / 65°0.09Light rain
78 °Light rain

Illiana, Thursday, 13 August

Light rain. High 78°, low 65°.

Pressure30.00 inHg
Wind9.3 mph NE
Humidity67%
Visibility—
Dew point65°
Fri, 1476° / 61°0Partly cloudy
76 °Partly cloudy

Illiana, Friday, 14 August

Partly cloudy. High 76°, low 61°.

Pressure30.09 inHg
Wind7.3 mph E
Humidity71%
Visibility—
Dew point64°
Sat, 1566° / 58°0.07Light rain
66 °Light rain

Illiana, Saturday, 15 August

Light rain. High 66°, low 58°.

Pressure30.27 inHg
Wind9.6 mph E
Humidity94%
Visibility—
Dew point62°
Sun, 1672° / 60°0Overcast
72 °Overcast

Illiana, Sunday, 16 August

Overcast. High 72°, low 60°.

Pressure30.12 inHg
Wind6.4 mph E
Humidity77%
Visibility—
Dew point62°
Mon, 1775° / 63°0.15Light rain
75 °Light rain

Illiana, Monday, 17 August

Light rain. High 75°, low 63°.

Pressure30.06 inHg
Wind6.2 mph N
Humidity93%
Visibility—
Dew point65°
Tue, 1881° / 64°0Overcast
81 °Overcast

Illiana, Tuesday, 18 August

Overcast. High 81°, low 64°.

Pressure30.00 inHg
Wind4.8 mph S
Humidity73%
Visibility—
Dew point67°
Wed, 1978° / 61°0.05Light rain
78 °Light rain

Illiana, Wednesday, 19 August

Light rain. High 78°, low 61°.

Pressure29.91 inHg
Wind12.5 mph NW
Humidity89%
Visibility—
Dew point73°
Thu, 2072° / 54°0.01Light rain
72 °Light rain

Illiana, Thursday, 20 August

Light rain. High 72°, low 54°.

Pressure30.03 inHg
Wind15.3 mph N
Humidity64%
Visibility—
Dew point56°
Fri, 2171° / 52°0Overcast
71 °Overcast

Illiana, Friday, 21 August

Overcast. High 71°, low 52°.

Pressure30.09 inHg
Wind7.4 mph NE
Humidity65%
Visibility—
Dew point56°
Sat, 2276° / 56°0.04Light rain
76 °Light rain

Illiana, Saturday, 22 August

Light rain. High 76°, low 56°.

Pressure29.88 inHg
Wind11.6 mph S
Humidity73%
Visibility—
Dew point64°
Sun, 2385° / 66°0Mostly clear
85 °Mostly clear

Illiana, Sunday, 23 August

Mostly clear. High 85°, low 66°.

Pressure29.94 inHg
Wind10.8 mph W
Humidity63%
Visibility—
Dew point68°

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 Illiana, 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 Illiana, 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.