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As of 22:00 CDT

Weather in Passport, IL

52°Current weather

Passport, Friday, 16 October, 22:00

Partly cloudy. Feels like 51°. High 67°, low 52°.

Pressure30.33 inHg
Wind11.5 mph NW
Humidity84%
Visibility6.2 mi
Dew point46°
Sat, 1760° / 43°0Clear
60 °Clear

Passport, Saturday, 17 October

Clear. High 60°, low 43°.

Pressure30.53 inHg
Wind6.2 mph NE
Humidity52%
Visibility6.2 mi
Dew point38°
Sun, 1863° / 40°0Clear
63 °Clear

Passport, Sunday, 18 October

Clear. High 63°, low 40°.

Pressure30.50 inHg
Wind6.9 mph S
Humidity45%
Visibility6.2 mi
Dew point38°
Mon, 1968° / 43°0Clear
68 °Clear

Passport, Monday, 19 October

Clear. High 68°, low 43°.

Pressure30.42 inHg
Wind1.9 mph S
Humidity44%
Visibility6.2 mi
Dew point42°
Tue, 2070° / 45°0Clear
70 °Clear

Passport, Tuesday, 20 October

Clear. High 70°, low 45°.

Pressure30.36 inHg
Wind2 mph E
Humidity48%
Visibility6.2 mi
Dew point46°
Wed, 2171° / 46°0Clear
71 °Clear

Passport, Wednesday, 21 October

Clear. High 71°, low 46°.

Pressure30.27 inHg
Wind4.2 mph NE
Humidity39%
Visibility—
Dew point41°
Thu, 2274° / 51°0Partly cloudy
74 °Partly cloudy

Passport, Thursday, 22 October

Partly cloudy. High 74°, low 51°.

Pressure30.21 inHg
Wind5.1 mph E
Humidity33%
Visibility—
Dew point39°
Fri, 2376° / 53°0Mostly clear
76 °Mostly clear

Passport, Friday, 23 October

Mostly clear. High 76°, low 53°.

Pressure30.24 inHg
Wind7.9 mph E
Humidity26%
Visibility—
Dew point35°
Sat, 2477° / 53°0Overcast
77 °Overcast

Passport, Saturday, 24 October

Overcast. High 77°, low 53°.

Pressure30.24 inHg
Wind7.1 mph S
Humidity22%
Visibility—
Dew point31°
Sun, 2575° / 57°0Overcast
75 °Overcast

Passport, Sunday, 25 October

Overcast. High 75°, low 57°.

Pressure30.24 inHg
Wind11.2 mph NE
Humidity37%
Visibility—
Dew point45°
Mon, 2671° / 53°0Overcast
71 °Overcast

Passport, Monday, 26 October

Overcast. High 71°, low 53°.

Pressure30.30 inHg
Wind10 mph NE
Humidity42%
Visibility—
Dew point42°
Tue, 2779° / 56°0Overcast
79 °Overcast

Passport, Tuesday, 27 October

Overcast. High 79°, low 56°.

Pressure30.15 inHg
Wind9.4 mph SW
Humidity31%
Visibility—
Dew point42°
Wed, 2863° / 52°0.13Light rain
63 °Light rain

Passport, Wednesday, 28 October

Light rain. High 63°, low 52°.

Pressure30.09 inHg
Wind10 mph NE
Humidity92%
Visibility—
Dew point56°
Thu, 2959° / 48°0.86Heavy rain
59 °Heavy rain

Passport, Thursday, 29 October

Heavy rain. High 59°, low 48°.

Pressure29.97 inHg
Wind14.9 mph SE
Humidity86%
Visibility—
Dew point47°
Fri, 3076° / 55°0.13Rain
76 °Rain

Passport, Friday, 30 October

Rain. High 76°, low 55°.

Pressure29.62 inHg
Wind20.7 mph W
Humidity52%
Visibility—
Dew point56°
Sat, 3159° / 47°0Overcast
59 °Overcast

Passport, Saturday, 31 October

Overcast. High 59°, low 47°.

Pressure30.09 inHg
Wind16.8 mph NW
Humidity47%
Visibility—
Dew point38°

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 Passport, 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 Passport, 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.