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Summer 2024 weather forecast for Seattle

Prepare for summer weather in Seattle, Washington with these seasonal temperature and precipitation outlooks.

An Argosy cruise ship is pictured while on one of its boat tours past the Olympic Sculpture garden. The green grass and trees key in that this was taken during a beautiful summer day.

Seattle gets an average of 12 days of rain during the summer months.

Photo by @dcphotos84

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We know the question on your mind, Seattleites — when’s it going to get hot?

Thanks to the National Oceanic and Atmospheric Administration’s Climate Prediction Center, we know what temperatures and precipitation trends to expect in our city for June, July, and August. While exact weather conditions typically can’t be predicted more than a week in advance, here’s a seasonal outlook to help you prepare for what summer will bring.

A map of the US uses colors to represent the likelihood of different kinds of temperature trends we might see between June and August. A majority of the map is covered in warm tone colors, showing a high likelihood of warmer than average temperatures. Arizona, New Mexico, Colorado, and Utah have the highest likelihood of high temps. The only place in the US that have equal chances of a warmer or cooler than usual is North + South Dakota and the western part of Minnesota. The entire state of Washington is covered in orange.

Welp... looks like we’re all going to be wearing a lot more tank tops this summer.

Screenshot via NOAA Climate Prediction Center

Temperature

Think hot. This summer, Seattle has a 40-50% chance of temperatures being higher than normal.

Precipitation

Expect slightly less precipitation. Seattle has a 40-50% chance of seeing below-normal rainfall amounts this summer.

By the Month: June

While the old adage says that summer doesn’t generally start in Seattle until July 5, there’s a fair likelihood that this may prove to be untrue this year. June will likely have an average high of 69° and lows around 48°. Also, the solstice happens on Tues., June 21, which means we’ll see a 5:11 a.m. sunrise and a 9:07 p.m. sunset.

By the month: July

In July, we’ll likely see temps creep up to highs of 76° and lows of 52°. We will also be squarely in the dry season by this point with an estimated average of ~4.2 rainy days. Of course, that may be less this year, given the NOAA predictions.

By the month: August

The averages are predicted to stay pretty consistent with highs around 76° again and lows around 54°. However, this is our warmest month for seawater with an average ocean temp of 53°.

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