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August weather forecast in Evanston

30 days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

30 days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Sun

Sunday

Mon

Monday

Tue

Tuesday

Wed

Wednesday

Thu

Thursday

Fri

Friday

Sat

Saturday

27 July, sun

	745 mmHg		75%
	6.5 m/s		+22

27 July, Sunday. day, 25°; night, 22°; partly cloudy

28 July, mon

	745 mmHg		77%
	6.7 m/s		+22

28 July, Monday. day, 25°; night, 22°; rain

29 July, tue

	745 mmHg		75%
	6.6 m/s		+22

29 July, Tuesday. day, 25°; night, 22°; rain

30 July, wed

	746 mmHg		72%
	5.8 m/s		+22

30 July, Wednesday. day, 25°; night, 22°; clear

31 July, thu

	746 mmHg		73%
	5.6 m/s		+22

31 July, Thursday. day, 26°; night, 22°; clear

1 August, fri

	746 mmHg		73%
	5.9 m/s		+22

1 August, Friday. day, 26°; night, 23°; clear

2 August, sat

	746 mmHg		74%
	6.3 m/s		+22

2 August, Saturday. day, 26°; night, 22°; clear

3 August, sun

	745 mmHg		75%
	6.1 m/s		+22

3 August, Sunday. day, 26°; night, 23°; clear

4 August, mon

	746 mmHg		76%
	6.2 m/s		+22

4 August, Monday. day, 25°; night, 22°; partly cloudy

5 August, tue

	746 mmHg		74%
	6.6 m/s		+22

5 August, Tuesday. day, 25°; night, 22°; rain

6 August, wed

	746 mmHg		73%
	6.2 m/s		+22

6 August, Wednesday. day, 25°; night, 22°; overcast

7 August, thu

	746 mmHg		75%
	6.4 m/s		+22

7 August, Thursday. day, 25°; night, 22°; rain

8 August, fri

	746 mmHg		74%
	6.5 m/s		+22

8 August, Friday. day, 25°; night, 22°; partly cloudy

9 August, sat

	745 mmHg		74%
	6.2 m/s		+22

9 August, Saturday. day, 25°; night, 22°; partly cloudy

10 August, sun

	745 mmHg		76%
	6.5 m/s		+22

10 August, Sunday. day, 25°; night, 22°; rain

11 August, mon

	746 mmHg		75%
	6.2 m/s		+23

11 August, Monday. day, 25°; night, 22°; rain

12 August, tue

	746 mmHg		75%
	6.1 m/s		+22

12 August, Tuesday. day, 25°; night, 21°; clear

13 August, wed

	746 mmHg		74%
	6.2 m/s		+22

13 August, Wednesday. day, 25°; night, 22°; partly cloudy

14 August, thu

	746 mmHg		74%
	6.5 m/s		+22

14 August, Thursday. day, 24°; night, 21°; partly cloudy

15 August, fri

	746 mmHg		74%
	6.1 m/s		+22

15 August, Friday. day, 25°; night, 21°; clear

16 August, sat

	746 mmHg		73%
	6.3 m/s		+22

16 August, Saturday. day, 25°; night, 21°; clear

17 August, sun

	746 mmHg		74%
	6.3 m/s		+22

17 August, Sunday. day, 25°; night, 22°; rain

18 August, mon

	746 mmHg		75%
	6.1 m/s		+22

18 August, Monday. day, 24°; night, 21°; rain

19 August, tue

	745 mmHg		75%
	6.4 m/s		+22

19 August, Tuesday. day, 24°; night, 21°; rain

20 August, wed

	745 mmHg		76%
	6.4 m/s		+22

20 August, Wednesday. day, 24°; night, 21°; rain

21 August, thu

	746 mmHg		74%
	6.3 m/s		+22

21 August, Thursday. day, 25°; night, 21°; clear

22 August, fri

	747 mmHg		74%
	6.5 m/s		+22

22 August, Friday. day, 25°; night, 21°; clear

23 August, sat

	747 mmHg		74%
	6.3 m/s		+22

23 August, Saturday. day, 25°; night, 21°; clear

24 August, sun

	746 mmHg		75%
	6.8 m/s		+22

24 August, Sunday. day, 25°; night, 22°; rain

25 August, mon

	746 mmHg		75%
	7.1 m/s		+21

25 August, Monday. day, 25°; night, 21°; overcast

26 August, tue

	746 mmHg		76%
	6.2 m/s		+21

26 August, Tuesday. day, 25°; night, 22°; partly cloudy

27 August, wed

	746 mmHg		77%
	6.4 m/s		+21

27 August, Wednesday. day, 25°; night, 22°; clear

28 August, thu

	746 mmHg		76%
	6.9 m/s		+21

28 August, Thursday. day, 25°; night, 22°; rain

29 August, fri

	746 mmHg		77%
	6.6 m/s		+21

29 August, Friday. day, 24°; night, 21°; rain

30 August, sat

	747 mmHg		73%
	6.5 m/s		+21

30 August, Saturday. day, 24°; night, 21°; clear

31 August, sun

	747 mmHg		73%
	6.7 m/s		+21

31 August, Sunday. day, 24°; night, 21°; clear

1 September, mon

	747 mmHg		73%
	6.3 m/s		+21

1 September, Monday. day, 24°; night, 21°; clear

2 September, tue

	747 mmHg		72%
	6.5 m/s		+21

2 September, Tuesday. day, 25°; night, 21°; clear

3 September, wed

	746 mmHg		72%
	6.7 m/s		+21

3 September, Wednesday. day, 25°; night, 21°; clear

4 September, thu

	747 mmHg		72%
	6.8 m/s		+21

4 September, Thursday. day, 24°; night, 21°; clear

5 September, fri

	747 mmHg		72%
	6.6 m/s		+21

5 September, Friday. day, 24°; night, 20°; clear

6 September, sat

	747 mmHg		73%
	7.1 m/s		+21

6 September, Saturday. day, 24°; night, 20°; clear

Average data for 10 years

Evanston August

12

sunny days

11

days with precipitation

4

cloudy days

12 sunny days; 11 days with precipitation; 4 cloudy days;

75

%

air humidity

4.3

m/s

WindS

94

mm of precipitation

(9% of annual average)

+22

°C

Water temperature

air humidity 75%; 94 millimeters of precipitation (9% of annual average); Wind southerly 4.3 Meters per second; Water temperature +22°

Weather graphs for August

TemperatureWater temperaturePrecipitation chance, %Humidity, %Wind, m/sPressure, mmHg

S

S

S

SE

S

S

S

SE

S

S

SE

S

S

SE

S

S

S

S

SE

SE

S

S

SE

S

S

S

SE

SE

SE

SE

SE

1

Average data for 10 years

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Daytime temperature

Night-time temperature

Cities near you

Chicago
Indianapolis
Sidney
Wisconsin Dells
Milwaukee
Sheboygan
Michigan City
Madison
Washington

Cities with similar weather in August

Suhum
Varna
Podgorica
The Golden Sands
Hersonisos
Kobuleti
Victoria
Casablanca
Marbella

The weather forecast for August 2025 is based on historical data from the past 10 years.

In August, the weather in Evanston is typically warm. Average daily high temperature in August is about 25 degrees above zero. On average, Evanston has 12 sunny, 11 rainy, 6 partly cloudy, and 2 cloudy days in August. The rains are usually heavy.

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