Northbrook, IL Air Quality & Pollen

Today

Wed 09/30

High 64°f

82% Precip. / 0.17 in

Rain likely. High 64F. Winds SSW at 10 to 15 mph. Chance of rain 80%.

Tonight

Wed 09/30

Low 63°f

77% Precip. / 0.23 in

Rain early...then remaining cloudy with showers overnight. Low 63F. Winds SSW at 5 to 10 mph. Chance of rain 80%. Rainfall near a quarter of an inch.

Tomorrow

Thu 10/01

High 70°f55°f

94% Precip. / 0.73 in

Rain likely. High around 70F. Winds WSW at 5 to 10 mph. Chance of rain 90%. Rainfall around a half an inch. Locally heavy rainfall possible.

Hourly Forecast

Now

61°

3PM

54%

62°

4PM

65%

62°

5PM

64%

62°

6PM

55%

64°

6:34PM

Sunset

7PM

56%

64°

8PM

64°

9PM

36%

64°

10PM

67%

64°

11PM

85%

64°

12AM

55%

65°

1AM

47%

65°

2AM

53%

65°

3AM

46%

65°

4AM

41%

65°

5AM

54%

65°

6AM

56%

65°

6:48AM

Sunrise

7AM

55%

65°

8AM

41%

66°

9AM

53%

66°

10AM

63%

67°

11AM

72%

68°

12PM

84%

69°

1PM

87%

70°

2PM

92%

69°

Precipitation

92%

Rain expected around 2:45 PM

Additional Conditions

Pressure 29.88 in
Visibility 5 miles
Clouds Cloudy
Dew Point61°F
Humidity 100%
Rainfall 0.42 in
Snow Depth 0 in

KPWK Station History

Almanac for September 30, 2026

Forecast Average Record
Temperature
High 71°F 70°F 84°F 2002
Low 59°F 49°F 30°F 1993
Rain/Snow Depth
Precipitation 0.4 in 2.9 in -
Snow 0 in - in -

Almanac for October 1, 2026

Forecast Average Record
Temperature
High 70°F 69°F 86°F
Low 59°F 48°F 31°F

Astronomy

Sun Rise Set
Actual Time 6:47 AM 6:34 PM
Civil Twilight 6:19 AM 7:02 PM
Nautical Twilight 5:46 AM 7:34PM
Astronomical Twilight 5:14 AM 8:07 PM

Length of Visible Light 12h 42m
Length of Day 11h 47m
Tomorrow will be 2 minutes 49 seconds shorter

Moon 8:35 PM 11:37 AM
Waning Gibbous77% of the Moon is Illuminated

Oct 3

Waning Half Last Qtr

Oct 10

New Moon

Oct 18

Waxing Half First Qtr

Oct 25

Full Moon

Nearby Weather Stations

Loading nearby stations…