As of 20:51 CDT

Weather in Grant Park, IL

56°

Grant Park, Wednesday, 21 October, 20:51

Clear. Feels like 55°. High 72°, low 41°.

Pressure30.21 inHg

Wind3.5 mph NE

Humidity69%

Visibility6.2 mi

Dew point46°

See detailed hourly forecast

Thu, 2273° / 47°

73 °

Grant Park, Thursday, 22 October

Clear. High 73°, low 47°.

Pressure30.27 inHg

Wind1.4 mph N

Humidity47%

Visibility6.2 mi

Dew point49°

Fri, 2372° / 47°

72 °

Grant Park, Friday, 23 October

Clear. High 72°, low 47°.

Pressure30.33 inHg

Wind5.4 mph S

Humidity49%

Visibility6.2 mi

Dew point47°

Sat, 2469° / 47°

69 °

Grant Park, Saturday, 24 October

Overcast. High 69°, low 47°.

Pressure30.39 inHg

Wind6.4 mph S

Humidity58%

Visibility6.2 mi

Dew point50°

Sun, 2570° / 50°

70 °

Grant Park, Sunday, 25 October

Overcast. High 70°, low 50°.

Pressure30.39 inHg

Wind4.7 mph S

Humidity55%

Visibility6.2 mi

Dew point49°

Mon, 2670° / 49°

70 °

Grant Park, Monday, 26 October

Overcast. High 70°, low 49°.

Pressure30.33 inHg

Wind5.4 mph E

Humidity50%

Visibility—

Dew point47°

Tue, 2765° / 50°

0.01

65 °

Grant Park, Tuesday, 27 October

Light rain. High 65°, low 50°.

Pressure30.21 inHg

Wind5.3 mph SE

Humidity56%

Visibility—

Dew point47°

Wed, 2854° / 41°

0.04

54 °

Grant Park, Wednesday, 28 October

Light rain. High 54°, low 41°.

Pressure30.21 inHg

Wind13.5 mph N

Humidity83%

Visibility—

Dew point44°

Thu, 2955° / 37°

55 °

Grant Park, Thursday, 29 October

Clear. High 55°, low 37°.

Pressure30.30 inHg

Wind7.3 mph NW

Humidity47%

Visibility—

Dew point33°

Fri, 3061° / 40°

61 °

Grant Park, Friday, 30 October

Partly cloudy. High 61°, low 40°.

Pressure30.18 inHg

Wind12.4 mph S

Humidity31%

Visibility—

Dew point26°

Sat, 3165° / 49°

65 °

Grant Park, Saturday, 31 October

Overcast. High 65°, low 49°.

Pressure30.06 inHg

Wind18.5 mph S

Humidity48%

Visibility—

Dew point42°

Sun, 0161° / 55°

0.53

61 °

Grant Park, Sunday, 1 November

Rain. High 61°, low 55°.

Pressure29.94 inHg

Wind19.7 mph S

Humidity91%

Visibility—

Dew point53°

Mon, 0257° / 42°

0.57

57 °

Grant Park, Monday, 2 November

Rain. High 57°, low 42°.

Pressure30.12 inHg

Wind19.6 mph NW

Humidity45%

Visibility—

Dew point31°

Tue, 0350° / 36°

50 °

Grant Park, Tuesday, 3 November

Overcast. High 50°, low 36°.

Pressure30.27 inHg

Wind16.6 mph W

Humidity35%

Visibility—

Dew point21°

Wed, 0453° / 44°

53 °

Grant Park, Wednesday, 4 November

Overcast. High 53°, low 44°.

Pressure29.83 inHg

Wind22.5 mph S

Humidity62%

Visibility—

Dew point39°

Thu, 0555° / 41°

0.04

55 °

Grant Park, Thursday, 5 November

Light rain. High 55°, low 41°.

Pressure29.65 inHg

Wind24 mph NW

Humidity50%

Visibility—

Dew point35°

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 Grant Park, 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 Grant Park, 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.