As of 13:37 CDT

Weather in Passport, IL

63°

Passport, Sunday, 18 October, 13:37

Clear. Feels like 60°. High 63°, low 37°.

Pressure30.45 inHg

Wind0 mph N

Humidity42%

Visibility6.2 mi

Dew point39°

See detailed hourly forecast

Mon, 1966° / 40°

66 °

Passport, Monday, 19 October

Clear. High 66°, low 40°.

Pressure30.42 inHg

Wind1.1 mph SW

Humidity52%

Visibility6.2 mi

Dew point45°

Tue, 2068° / 45°

68 °

Passport, Tuesday, 20 October

Clear. High 68°, low 45°.

Pressure30.36 inHg

Wind3.2 mph NE

Humidity47%

Visibility6.2 mi

Dew point45°

Wed, 2169° / 46°

69 °

Passport, Wednesday, 21 October

Clear. High 69°, low 46°.

Pressure30.30 inHg

Wind0.3 mph E

Humidity50%

Visibility6.2 mi

Dew point48°

Thu, 2269° / 47°

69 °

Passport, Thursday, 22 October

Clear. High 69°, low 47°.

Pressure30.27 inHg

Wind3.5 mph NE

Humidity53%

Visibility6.2 mi

Dew point49°

Fri, 2368° / 49°

68 °

Passport, Friday, 23 October

Clear. High 68°, low 49°.

Pressure30.30 inHg

Wind7.1 mph E

Humidity52%

Visibility—

Dew point47°

Sat, 2478° / 52°

78 °

Passport, Saturday, 24 October

Overcast. High 78°, low 52°.

Pressure30.33 inHg

Wind10.2 mph S

Humidity34%

Visibility—

Dew point41°

Sun, 2572° / 55°

72 °

Passport, Sunday, 25 October

Overcast. High 72°, low 55°.

Pressure30.36 inHg

Wind12.1 mph N

Humidity37%

Visibility—

Dew point42°

Mon, 2674° / 53°

74 °

Passport, Monday, 26 October

Overcast. High 74°, low 53°.

Pressure30.30 inHg

Wind7.5 mph SW

Humidity31%

Visibility—

Dew point38°

Tue, 2776° / 57°

76 °

Passport, Tuesday, 27 October

Overcast. High 76°, low 57°.

Pressure30.24 inHg

Wind10.3 mph SE

Humidity34%

Visibility—

Dew point43°

Wed, 2871° / 60°

0.1

71 °

Passport, Wednesday, 28 October

Light rain. High 71°, low 60°.

Pressure30.03 inHg

Wind15 mph S

Humidity84%

Visibility—

Dew point60°

Thu, 2979° / 64°

0.18

79 °

Passport, Thursday, 29 October

Light rain. High 79°, low 64°.

Pressure29.80 inHg

Wind13.5 mph S

Humidity71%

Visibility—

Dew point62°

Fri, 3084° / 62°

0.07

84 °

Passport, Friday, 30 October

Light rain. High 84°, low 62°.

Pressure29.77 inHg

Wind19.2 mph S

Humidity59%

Visibility—

Dew point61°

Sat, 3171° / 51°

0.22

71 °

Passport, Saturday, 31 October

Rain. High 71°, low 51°.

Pressure29.80 inHg

Wind17 mph SW

Humidity52%

Visibility—

Dew point40°

Sun, 0157° / 43°

57 °

Passport, Sunday, 1 November

Clear. High 57°, low 43°.

Pressure30.24 inHg

Wind12 mph W

Humidity35%

Visibility—

Dew point26°

Mon, 0260° / 39°

60 °

Passport, Monday, 2 November

Clear. High 60°, low 39°.

Pressure30.42 inHg

Wind6.8 mph SE

Humidity30%

Visibility—

Dew point24°

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.