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As of 21:50 CDT

Weather in Passport, IL

43°Current weather

Passport, Saturday, 17 October, 21:50

Clear. Feels like 43°. High 58°, low 41°.

Pressure30.47 inHg
Wind0 mph N
Humidity81%
Visibility6.2 mi
Dew point37°
Sun, 1863° / 39°0Clear
63 °Clear

Passport, Sunday, 18 October

Clear. High 63°, low 39°.

Pressure30.50 inHg
Wind6.9 mph S
Humidity47%
Visibility6.2 mi
Dew point39°
Mon, 1966° / 43°0Clear
66 °Clear

Passport, Monday, 19 October

Clear. High 66°, low 43°.

Pressure30.39 inHg
Wind0.4 mph E
Humidity46%
Visibility6.2 mi
Dew point43°
Tue, 2069° / 45°0Mostly clear
69 °Mostly clear

Passport, Tuesday, 20 October

Mostly clear. High 69°, low 45°.

Pressure30.39 inHg
Wind2.5 mph E
Humidity48%
Visibility6.2 mi
Dew point46°
Wed, 2170° / 46°0Clear
70 °Clear

Passport, Wednesday, 21 October

Clear. High 70°, low 46°.

Pressure30.30 inHg
Wind1.6 mph SE
Humidity49%
Visibility6.2 mi
Dew point46°
Thu, 2271° / 48°0Mostly clear
71 °Mostly clear

Passport, Thursday, 22 October

Mostly clear. High 71°, low 48°.

Pressure30.24 inHg
Wind4.5 mph NE
Humidity45%
Visibility—
Dew point45°
Fri, 2372° / 51°0Clear
72 °Clear

Passport, Friday, 23 October

Clear. High 72°, low 51°.

Pressure30.30 inHg
Wind8 mph SE
Humidity45%
Visibility—
Dew point44°
Sat, 2475° / 54°0Overcast
75 °Overcast

Passport, Saturday, 24 October

Overcast. High 75°, low 54°.

Pressure30.30 inHg
Wind9.3 mph S
Humidity29%
Visibility—
Dew point35°
Sun, 2571° / 52°0Overcast
71 °Overcast

Passport, Sunday, 25 October

Overcast. High 71°, low 52°.

Pressure30.33 inHg
Wind14.1 mph NW
Humidity47%
Visibility—
Dew point48°
Mon, 2663° / 47°0Overcast
63 °Overcast

Passport, Monday, 26 October

Overcast. High 63°, low 47°.

Pressure30.39 inHg
Wind10 mph N
Humidity31%
Visibility—
Dew point28°
Tue, 2766° / 44°0Overcast
66 °Overcast

Passport, Tuesday, 27 October

Overcast. High 66°, low 44°.

Pressure30.33 inHg
Wind6.6 mph S
Humidity31%
Visibility—
Dew point29°
Wed, 2862° / 52°0Overcast
62 °Overcast

Passport, Wednesday, 28 October

Overcast. High 62°, low 52°.

Pressure30.21 inHg
Wind8.9 mph SE
Humidity47%
Visibility—
Dew point38°
Thu, 2979° / 57°0.03Light rain
79 °Light rain

Passport, Thursday, 29 October

Light rain. High 79°, low 57°.

Pressure29.94 inHg
Wind20.3 mph SW
Humidity39%
Visibility—
Dew point48°
Fri, 3070° / 62°0.07Light rain
70 °Light rain

Passport, Friday, 30 October

Light rain. High 70°, low 62°.

Pressure29.97 inHg
Wind9.9 mph SW
Humidity61%
Visibility—
Dew point55°
Sat, 3173° / 56°0.64Rain
73 °Rain

Passport, Saturday, 31 October

Rain. High 73°, low 56°.

Pressure29.97 inHg
Wind14.9 mph SE
Humidity59%
Visibility—
Dew point56°
Sun, 0175° / 56°0.46Rain
75 °Rain

Passport, Sunday, 1 November

Rain. High 75°, low 56°.

Pressure29.91 inHg
Wind17.6 mph SW
Humidity61%
Visibility—
Dew point59°

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.