Nearby locations
Grand Coulee, Washington, United States
Delano Heights, Washington, United States
Electric City, Washington, United States
Nearby popular places
Coulee Community Hospital Heliport, United States
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Weather in Grand Coulee, United States

48°
Cloudy
Feels like 48°
·
High48°Low36°
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Air quality

Full Details
0
42
500
Air quality:Good

Pollen index

Full Details
Tree
0/5
012345
Weed
0/5
012345
Grass
0/5
012345

Today's weather summary

The weather in Grand Coulee on Sunday, April 28th, will be cloudy for most of the day, with some clouds during the evening.

There's seems to be also high probability of light rain during the morning around 10 am, and many clouds during the evening at about 7 pm.

Weather details for Grand Coulee, on Sunday, April 28th:

The highest temperature of the day will be 48°F around 1 pm. The day will have very high relative humidity, with average humidity of 81%, ranging from 71% to a maximum value of 94% at about 4 am. The wind will be breezy, and will get up to 14 mph at 8 pm, blowing from the west. The cloud coverage will range from 47% around 10 pm to as high as 100% around 11 pm with an average of 93%.

The precipitation probability will change throughout the day between 0% and 35%. The highest chance for precipitation will be around 3 pm and the lowest probability around midnight. The dew point will range from 33°F up to a maximum value of 45°F around midnight.

The visibility is expected to be good with average visibility of 9 mi throughout the day. Atmospheric pressure will be normal with average pressure of 1016 hPa. Sunrise will be at 6:02 am, and sunset at 8:16 pm. The day will have 14 hours and 14 minutes of daylight.

Air quality forecast for Grand Coulee, on Sunday, April 28th:

On average, the air quality on this day will be good, meaning that air quality is satisfactory, and air pollution poses little or no risk. According to our index, ranging from 0 to 500, the air quality is going to be between values of 27 and 41.

Pollen forecast for Grand Coulee, on Sunday, April 28th:

The overall pollen forecast for this day shows no significant pollen. Tree pollen on this day is expected to have no risk. There's no risk of weed pollen, and as for grass pollen, this day is expected to have no risk.

The weather in Grand Coulee on Monday, April 29th, will be cloudy throughout the day, with few clouds during the morning.

There's seems to be also high probability of light rain in the early morning around 6 am.

Weather information for Grand Coulee, on Monday, April 29th:

The maximum temperature of the day will be 44°F around 1 pm. The day will have very high relative humidity, with average humidity of 77%, ranging from 67% to a maximum value of 85% at about 10 pm. The wind will be breezy, and will get up to 11 mph at 10 pm, blowing from the south-east. The cloud coverage will range from 14% around 8 am to as high as 100% around 11 pm with an average of 88%.

The chances of precipitation throughout the day will change between 0% and 70%. The highest chance for precipitation will be around 10 pm and the lowest probability around midnight. The dew point will range from 31°F up to a maximum value of 37°F around 6 pm.

The visibility is expected to be good with average visibility of 9 mi throughout the day. Atmospheric pressure will be normal with average pressure of 1017 hPa. Sunrise will be at 6:01 am, and sunset at 8:18 pm. The day will have 14 hours and 17 minutes of daylight.

Air quality forecast for Grand Coulee, on Monday, April 29th:

On average, the air quality on this day will be good, meaning that air quality is satisfactory, and air pollution poses little or no risk. According to our index, ranging from 0 to 500, the air quality is going to be between values of 33 and 40.

Pollen forecast for Grand Coulee, on Monday, April 29th:

The overall pollen forecast for this day shows no significant pollen. Tree pollen on this day is expected to have very low risk. There's no risk of weed pollen, and as for grass pollen, this day is expected to have very low risk.

FAQ

How warm does it get in Grand Coulee?
The average annual highest temperature in Grand Coulee is 33.8°C (92.8°F), and the July 26th is the hottest day on average.
How cold does it get in Grand Coulee?
The average annual lowest temperature in Grand Coulee is -11.0°C (12.2°F), and the December 31st is the coldest day on average.
Which month has the most rain in Grand Coulee?
The wettest months in Grand Coulee are March and October.
What months does it snow in Grand Coulee?
The most common time of year for snow is January, December, February, November and March.