Sumner — Weather

Live20 strikes0.2/minStorm approaching — ETA 31 minclosing inJust updated

20°C68°F· Overcast · 77% cloud cover

Feels like 18°C65°F · Low 17°C62°F · High 23°C73°F

Wind

11 km/h3 m/s7 mph from SW

Humidity

54%

Pressure

1015 hPa29.97 inHgstable

UV Index

1.3Low

Fair weather

Currently 20°C68°F and overcast in Sumner.

⚡ Active lightning nearby — 4 strikes within 50 km in the last 30 min (nearest 26 km).

🌡️ 23°C73°F today, 4.4°C39°F warmer than the July climate average (18°C64°F).

Hourly forecast

Detailed forecast for the next 60 hours

TemperaturePrecipitationWind

Now

20°C68°F

117

12:00

21°C70°F

106

13:00

21°C70°F

0.20.01

127

14:00

22°C72°F

128

15:00

23°C73°F

138

16:00

22°C72°F

159

17:00

21°C70°F

149

18:00

21°C69°F

128

19:00

20°C67°F

127

20:00

18°C65°F

117

21:00

17°C63°F

106

22:00

17°C62°F

23:00

17°C62°F

00:00

16°C62°F

01:00

16°C60°F

02:00

15°C59°F

03:00

15°C59°F

04:00

15°C59°F

05:00

15°C59°F

06:00

15°C59°F

07:00

15°C60°F

08:00

16°C61°F

09:00

18°C64°F

10:00

20°C67°F

11:00

21°C71°F

12:00

23°C74°F

13:00

24°C75°F

14:00

25°C77°F

106

15:00

26°C78°F

117

16:00

25°C77°F

149

17:00

23°C74°F

159

18:00

22°C72°F

138

19:00

21°C70°F

106

20:00

20°C69°F

21:00

19°C66°F

22:00

18°C64°F

23:00

17°C62°F

00:00

15°C60°F

03:00

14°C57°F

06:00

13°C56°F

09:00

17°C63°F

12:00

22°C72°F

15:00

25°C77°F

18:00

25°C77°F

21:00

20°C68°F

mminkm/hm/smphHumidity %

Daily Forecast

Today

Jul 16·Light rain

SW 15 km/h4 m/s9 mph(gusts 361023)61%UV 33h

17°C62°F

23°C73°F

Today

Jul 16

Light rain

61%

SW 15 km/h4 m/s9 mph (gusts 361023)

UV 3

17°C62°F

23°C73°F

Tomorrow

Jul 17·Overcast

SW 15 km/h4 m/s9 mph(gusts 381023)64%UV 25h

15°C59°F

26°C78°F

Tomorrow

Jul 17

Overcast

64%

SW 15 km/h4 m/s9 mph (gusts 381023)

UV 2

15°C59°F

26°C78°F

Saturday

Jul 18·Partly cloudy

W 9 km/h3 m/s6 mph(gusts 24715)67%UV 29h

13°C56°F

25°C77°F

Saturday

Jul 18

Partly cloudy

67%

W 9 km/h3 m/s6 mph (gusts 24715)

UV 2

13°C56°F

25°C77°F

Sunday

Jul 19·Clear

NW 13 km/h4 m/s8 mph(gusts 30819)62%UV 213h

13°C55°F

30°C86°F

Sunday

Jul 19

Clear

62%

NW 13 km/h4 m/s8 mph (gusts 30819)

UV 2

13h

13°C55°F

30°C86°F

Monday

Jul 20·Clear

N 10 km/h3 m/s6 mph(gusts 26716)53%UV 312h

13°C56°F

33°C92°F

Monday

Jul 20

Clear

53%

N 10 km/h3 m/s6 mph (gusts 26716)

UV 3

12h

13°C56°F

33°C92°F

Tuesday

Jul 21·Partly cloudy

SW 12 km/h3 m/s7 mph(gusts 30818)60%UV 210h

16°C60°F

32°C89°F

Tuesday

Jul 21

Partly cloudy

60%

SW 12 km/h3 m/s7 mph (gusts 30818)

UV 2

10h

16°C60°F

32°C89°F

Wednesday

Jul 22·Clear

W 8 km/h2 m/s5 mph(gusts 22614)59%UV 313h

14°C56°F

30°C86°F

Wednesday

Jul 22

Clear

59%

W 8 km/h2 m/s5 mph (gusts 22614)

UV 3

13h

14°C56°F

30°C86°F

Thursday

Jul 23·Clear

W 11 km/h3 m/s7 mph(gusts 27817)63%UV 311h

14°C56°F

31°C87°F

Thursday

Jul 23

Clear

63%

W 11 km/h3 m/s7 mph (gusts 27817)

UV 3

11h

14°C56°F

31°C87°F

Extended Forecast (GFS)

Friday

Jul 24·Clear

SW 12 km/h3 m/s7 mph(gusts 20613)59%15h

13°C56°F

31°C88°F

Friday

Jul 24

Clear

59%

SW 12 km/h3 m/s7 mph (gusts 20613)

15h

13°C56°F

31°C88°F

Saturday

Jul 25·Clear

SW 12 km/h3 m/s8 mph(gusts 23614)61%15h

11°C52°F

29°C84°F

Saturday

Jul 25

Clear

61%

SW 12 km/h3 m/s8 mph (gusts 23614)

15h

11°C52°F

29°C84°F

Sunday

Jul 26·Clear

SW 9 km/h3 m/s6 mph(gusts 20512)61%15h

11°C52°F

27°C81°F

Sunday

Jul 26

Clear

61%

SW 9 km/h3 m/s6 mph (gusts 20512)

15h

11°C52°F

27°C81°F

Monday

Jul 27·Clear

SW 13 km/h3 m/s8 mph(gusts 22614)68%15h

11°C52°F

27°C80°F

Monday

Jul 27

Clear

68%

SW 13 km/h3 m/s8 mph (gusts 22614)

15h

11°C52°F

27°C80°F

Tuesday

Jul 28·Drizzle

S 7 km/h2 m/s5 mph78%15h

13°C55°F

22°C71°F

Tuesday

Jul 28

Drizzle

78%

S 7 km/h2 m/s5 mph

15h

13°C55°F

22°C71°F

Wednesday

Jul 29·Clear

NE 12 km/h3 m/s7 mph63%15h

13°C55°F

31°C87°F

Wednesday

Jul 29

Clear

63%

NE 12 km/h3 m/s7 mph

15h

13°C55°F

31°C87°F

Thursday

Jul 30·Clear

N 10 km/h3 m/s6 mph52%15h

16°C60°F

37°C99°F

Thursday

Jul 30

Clear

52%

N 10 km/h3 m/s6 mph

15h

16°C60°F

37°C99°F

Friday

Jul 31·Clear

SW 13 km/h4 m/s8 mph50%15h

17°C62°F

35°C95°F

Friday

Jul 31

Clear

50%

SW 13 km/h4 m/s8 mph

15h

17°C62°F

35°C95°F

Today vs. seasonal normal

-2.3°C-4.2°F

High 24.9°C77°F · Low 11.4°C53°F · Normal for this month

Sumner is located in Washington, United States. Elevation: 20m. Annual average temperature: 11°C. Annual precipitation: 1069mm.

CloudsLast updated 05:00

0%100%

PrecipitationLast updated 05:00

010+ mm/h

TemperatureLast updated 05:00

−20°40°

Frequently Asked Questions

What is the weather like in Sumner today?

Today in Sumner, United States, the temperature is 20°C with Overcast. The high is 23°C and the low is 17°C.

What is the 16-day forecast for Sumner?

The 16-day forecast for Sumner shows the warmest day is Thursday at 37°C, while the coolest night is Monday at 11°C. 2 day(s) have precipitation expected.

What time is sunrise and sunset in Sumner?

In Sumner, sunrise is at 05:29 and sunset is at 21:00. Day length is approximately 15h 30m.

How accurate is the weather forecast for Sumner?

Our forecasts for Sumner use the DWD ICON model, one of the world's most advanced weather prediction systems. Accuracy is typically 85-90% for 1-3 day forecasts. Sumner has an annual average temperature of 11°C and receives 1069mm of precipitation per year.

Last updated: 07/16/2026, 11:00 AM