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As of 16:58 CDT

Weather in Zion, IL

81°Current weather

Zion, Saturday, 8 August, 16:58

Clear. Feels like 82°. High 82°, low 68°.

Pressure29.97 inHg
Wind2 mph NW
Humidity51%
Visibility6.2 mi
Dew point62°
Sun, 0982° / 65°1.21Heavy rain
82 °Heavy rain

Zion, Sunday, 9 August

Heavy rain. High 82°, low 65°.

Pressure29.88 inHg
Wind10.8 mph SE
Humidity93%
Visibility6.2 mi
Dew point64°
Mon, 1078° / 70°0.34Heavy rain
78 °Heavy rain

Zion, Monday, 10 August

Heavy rain. High 78°, low 70°.

Pressure29.91 inHg
Wind4.3 mph W
Humidity92%
Visibility6.2 mi
Dew point67°
Tue, 1179° / 68°0.49Heavy rain
79 °Heavy rain

Zion, Tuesday, 11 August

Heavy rain. High 79°, low 68°.

Pressure29.83 inHg
Wind16.1 mph N
Humidity98%
Visibility1.4 mi
Dew point70°
Wed, 1282° / 67°0Partly cloudy
82 °Partly cloudy

Zion, Wednesday, 12 August

Partly cloudy. High 82°, low 67°.

Pressure29.85 inHg
Wind3.1 mph S
Humidity68%
Visibility6.2 mi
Dew point66°
Thu, 1369° / 61°0.11Light rain
69 °Light rain

Zion, Thursday, 13 August

Light rain. High 69°, low 61°.

Pressure29.97 inHg
Wind15.1 mph NE
Humidity80%
Visibility—
Dew point60°
Fri, 1470° / 61°0Clear
70 °Clear

Zion, Friday, 14 August

Clear. High 70°, low 61°.

Pressure30.21 inHg
Wind10 mph NE
Humidity58%
Visibility—
Dew point53°
Sat, 1574° / 57°0Overcast
74 °Overcast

Zion, Saturday, 15 August

Overcast. High 74°, low 57°.

Pressure30.30 inHg
Wind6.6 mph SE
Humidity52%
Visibility—
Dew point52°
Sun, 1677° / 60°0Overcast
77 °Overcast

Zion, Sunday, 16 August

Overcast. High 77°, low 60°.

Pressure30.18 inHg
Wind10.3 mph SW
Humidity55%
Visibility—
Dew point56°
Mon, 1776° / 69°0.01Light rain
76 °Light rain

Zion, Monday, 17 August

Light rain. High 76°, low 69°.

Pressure30.00 inHg
Wind6.6 mph S
Humidity84%
Visibility—
Dew point65°
Tue, 1875° / 66°0.01Light rain
75 °Light rain

Zion, Tuesday, 18 August

Light rain. High 75°, low 66°.

Pressure30.06 inHg
Wind9.5 mph NE
Humidity69%
Visibility—
Dew point64°
Wed, 1977° / 67°0.31Rain
77 °Rain

Zion, Wednesday, 19 August

Rain. High 77°, low 67°.

Pressure29.91 inHg
Wind6.1 mph N
Humidity70%
Visibility—
Dew point65°
Thu, 2074° / 66°0.02Light rain
74 °Light rain

Zion, Thursday, 20 August

Light rain. High 74°, low 66°.

Pressure29.91 inHg
Wind11.5 mph N
Humidity77%
Visibility—
Dew point65°
Fri, 2172° / 63°0Overcast
72 °Overcast

Zion, Friday, 21 August

Overcast. High 72°, low 63°.

Pressure30.00 inHg
Wind10.4 mph NE
Humidity69%
Visibility—
Dew point60°
Sat, 2268° / 59°0.17Light rain
68 °Light rain

Zion, Saturday, 22 August

Light rain. High 68°, low 59°.

Pressure29.97 inHg
Wind18.9 mph NE
Humidity83%
Visibility—
Dew point59°
Sun, 2363° / 55°0Mostly clear
63 °Mostly clear

Zion, Sunday, 23 August

Mostly clear. High 63°, low 55°.

Pressure30.27 inHg
Wind17.3 mph NE
Humidity59%
Visibility—
Dew point47°

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 Zion, 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 Zion, 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.