How is the weather in Grand Coulee, WA?

At 11:00 PM on Thu, Sep 4, 2025 it is 78 degrees Fahrenheit, feeling like 78 degrees.

Grand Coulee, WA Weather Forecast and Current Conditions (99133)

WEATHER ALERTS - Air Quality Alert

78°F
Feels Like 78°F

Humidity 31% Dew Point 45°F Wind S 2 MPH Gusts 4 Barometer 30.86 in.783.8 mm

Solar Rad 0 w/m2

Report from 29.4 miles W of central Grand Coulee at 11:00 PM Thu, Sep 4, 2025

WEATHER ALERTS - Air Quality Alert

Current Weather

78°F
Feels Like 78°F

Humidity 31% Dew Point 45°F Wind S 2 MPH Gusts 4 Barometer 30.86 in.783.8 mm

Solar Rad 0 w/m2

Report from 29.4 miles W of central Grand Coulee at 11:00 PM Thu, Sep 4, 2025

Forecast at a Glance

FriSep 5

94°

69°

SatSep 6

10%

94°

69°

SunSep 7

30%

88°

65°

MonSep 8

40%

83°

61°

TueSep 9

50%

78°

60°

WedSep 10

40%

79°

60°

ThuSep 11

30%

79°

This Date in Weather History

1925 - The temperature at Centerville, AL, soars to 112 degrees to establish a state record. Every reporting station in Alabama was 100 degrees or above that afternoon.

Grand Coulee 7 Day Weather Forecast Details

Friday Sep 5

Day: Areas of smoke. Sunny, with a high near 94. East wind around 7 mph.

Night: Areas of smoke. Mostly clear, with a low around 69. East wind around 5 mph.

Saturday Sep 6

Day: Areas of smoke before noon. Mostly sunny, with a high near 94. East wind around 6 mph.

Night: A slight chance of rain showers after 11pm. Mostly cloudy, with a low around 69. Southeast wind around 6 mph. Chance of precipitation is 20%.

Sunday Sep 7

Day: A slight chance of rain showers before 5pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 88. Chance of precipitation is 30%.

Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.

Monday Sep 8

Day: A chance of rain showers before 5pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 83. Chance of precipitation is 40%.

Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Chance of precipitation is 50%.

Tuesday Sep 9

Day: A chance of rain showers. Partly sunny, with a high near 78. Chance of precipitation is 50%.

Night: A chance of rain showers. Mostly cloudy, with a low around 60. Chance of precipitation is 30%.

Wednesday Sep 10

Day: A chance of rain showers. Partly sunny, with a high near 79. Chance of precipitation is 40%.

Night: A slight chance of rain showers. Mostly cloudy, with a low around 60. Chance of precipitation is 20%.

Thursday Sep 11

Day: A chance of rain showers. Partly sunny, with a high near 79. Chance of precipitation is 30%.

Sun & Moon Monthly

First Light 5:48 AM

Sunrise 6:20 AM

Sunset 7:32 PM

Last Light 8:04 PM

Moonrise 6:48 PM

Moonset 3:29 AM

Moon Phase

Lakes Weather - Plan for a Beautiful Day

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