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August weather forecast in Grand Forks

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

	738 mmHg		69%
	5.3 m/s

27 July, Sunday. day, 27°; night, 16°; rain

28 July, mon

	738 mmHg		69%
	4.8 m/s

28 July, Monday. day, 27°; night, 16°; clear

29 July, tue

	739 mmHg		68%
	5 m/s

29 July, Tuesday. day, 27°; night, 15°; clear

30 July, wed

	738 mmHg		69%
	4.6 m/s

30 July, Wednesday. day, 28°; night, 16°; clear

31 July, thu

	738 mmHg		69%
	5.3 m/s

31 July, Thursday. day, 28°; night, 16°; clear

1 August, fri

	738 mmHg		68%
	5.3 m/s

1 August, Friday. day, 28°; night, 16°; clear

2 August, sat

	739 mmHg		69%
	4.5 m/s

2 August, Saturday. day, 27°; night, 16°; clear

3 August, sun

	738 mmHg		70%
	5.1 m/s

3 August, Sunday. day, 27°; night, 16°; overcast

4 August, mon

	739 mmHg		70%
	5.3 m/s

4 August, Monday. day, 26°; night, 15°; clear

5 August, tue

	739 mmHg		70%
	4.6 m/s

5 August, Tuesday. day, 27°; night, 15°; partly cloudy

6 August, wed

	739 mmHg		71%
	4.6 m/s

6 August, Wednesday. day, 26°; night, 15°; partly cloudy

7 August, thu

	738 mmHg		71%
	4.69 m/s

7 August, Thursday. day, 27°; night, 15°; partly cloudy

8 August, fri

	737 mmHg		71%
	5.4 m/s

8 August, Friday. day, 27°; night, 16°; clear

9 August, sat

	737 mmHg		69%
	5.2 m/s

9 August, Saturday. day, 26°; night, 16°; rain

10 August, sun

	739 mmHg		69%
	4.6 m/s

10 August, Sunday. day, 26°; night, 14°; clear

11 August, mon

	738 mmHg		70%
	4.69 m/s

11 August, Monday. day, 27°; night, 15°; partly cloudy

12 August, tue

	738 mmHg		70%
	5.3 m/s

12 August, Tuesday. day, 26°; night, 15°; rain

13 August, wed

	739 mmHg		72%
	4.8 m/s

13 August, Wednesday. day, 25°; night, 14°; rain

14 August, thu

	738 mmHg		70%
	5.1 m/s

14 August, Thursday. day, 26°; night, 15°; rain

15 August, fri

	737 mmHg		72%
	5.3 m/s

15 August, Friday. day, 26°; night, 15°; partly cloudy

16 August, sat

	737 mmHg		72%
	5.7 m/s

16 August, Saturday. day, 26°; night, 15°; rain

17 August, sun

	738 mmHg		71%
	5.7 m/s

17 August, Sunday. day, 26°; night, 15°; clear

18 August, mon

	738 mmHg		71%
	5.6 m/s

18 August, Monday. day, 26°; night, 15°; partly cloudy

19 August, tue

	737 mmHg		70%
	5.4 m/s

19 August, Tuesday. day, 26°; night, 15°; clear

20 August, wed

	738 mmHg		70%
	5.5 m/s

20 August, Wednesday. day, 26°; night, 15°; clear

21 August, thu

	738 mmHg		70%
	5.4 m/s

21 August, Thursday. day, 25°; night, 14°; partly cloudy

22 August, fri

	738 mmHg		70%
	5.4 m/s

22 August, Friday. day, 26°; night, 15°; clear

23 August, sat

	737 mmHg		71%
	5.7 m/s

23 August, Saturday. day, 26°; night, 15°; rain

24 August, sun

	737 mmHg		72%
	5.9 m/s

24 August, Sunday. day, 26°; night, 16°; rain

25 August, mon

	738 mmHg		72%
	5.4 m/s

25 August, Monday. day, 26°; night, 15°; rain

26 August, tue

	738 mmHg		70%
	5.2 m/s

26 August, Tuesday. day, 26°; night, 14°; clear

27 August, wed

	738 mmHg		73%
	5.2 m/s

27 August, Wednesday. day, 25°; night, 14°; rain

28 August, thu

	738 mmHg		73%
	5 m/s

28 August, Thursday. day, 25°; night, 15°; rain

29 August, fri

	738 mmHg		71%
	5.4 m/s

29 August, Friday. day, 25°; night, 14°; clear

30 August, sat

	738 mmHg		69%
	5.6 m/s

30 August, Saturday. day, 26°; night, 14°; clear

31 August, sun

	737 mmHg		68%
	6 m/s

31 August, Sunday. day, 26°; night, 15°; clear

1 September, mon

	737 mmHg		69%
	6.3 m/s

1 September, Monday. day, 26°; night, 14°; rain

2 September, tue

	737 mmHg		69%
	6 m/s

2 September, Tuesday. day, 24°; night, 14°; rain

3 September, wed

	738 mmHg		69%
	5.6 m/s

3 September, Wednesday. day, 24°; night, 13°; clear

4 September, thu

	738 mmHg		71%
	5.5 m/s

4 September, Thursday. day, 25°; night, 13°; clear

5 September, fri

	738 mmHg		72%
	5.9 m/s

5 September, Friday. day, 24°; night, 14°; rain

6 September, sat

	738 mmHg		71%
	5.7 m/s

6 September, Saturday. day, 24°; night, 13°; rain

Average data for 10 years

Grand Forks August

13

sunny days

10

days with precipitation

3

cloudy days

13 sunny days; 10 days with precipitation; 3 cloudy days;

71

%

air humidity

3.4

m/s

WindS

78

mm of precipitation

(12% of annual average)

air humidity 71%; 78 millimeters of precipitation (12% of annual average); Wind southerly 3.4 Meters per second

Weather graphs for August

TemperaturePrecipitation chance, %Humidity, %Wind, m/sPressure, mmHg

SW

SW

S

S

S

S

S

SW

SW

SW

S

S

S

SW

SW

SW

SW

S

S

SW

SW

S

S

S

SW

S

S

S

SW

S

S

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

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26

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28

29

30

31

Daytime temperature

Night-time temperature

Cities near you

Winnipeg
Fargo
Bemidji
Bismarck
Marshall
International Falls
St. Cloud
Jamestown
Willmar

Cities with similar weather in August

Lisbon
Vienna
Porto
Bratislava
Strasbourg
Lyon
Montreal
Rogaška Slatina
Kabul

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

August in Grand Forks is the sunniest month of the year. In August, the weather in Grand Forks is typically warm. Average daily high temperature in August is about 26 degrees above zero. On average, Grand Forks has 13 sunny, 10 rainy, 7 partly cloudy, and 1 cloudy day in August. The rains are usually heavy.

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