10-Day Weather Forecast for Mercer Island (WA)

Six-hourly outlook through Sunday 26 July. Updated every three hours via MET Norway.

Day
Night
23:00
Morning
05:00
Afternoon
11:00
Evening
17:00
Friday
17 Jul
Partly cloudy
16°C (61°F)
0 mm (0 in)
Cloudy
15°C (59°F)
0.1 mm (0 in)
Partly cloudy
18°C (64°F)
0 mm (0 in)
Mostly clear
23°C (73°F)
0 mm (0 in)
Hourly ›
Saturday
18 Jul
Partly cloudy
17°C (63°F)
0 mm (0 in)
Cloudy
14°C (57°F)
0.1 mm (0 in)
Mostly sunny
18°C (64°F)
0 mm (0 in)
Clear skies
22°C (72°F)
0 mm (0 in)
Hourly ›
Sunday
19 Jul
Clear skies
16°C (61°F)
0 mm (0 in)
Partly cloudy
14°C (57°F)
0 mm (0 in)
Partly cloudy
19°C (66°F)
0 mm (0 in)
Clear skies
25°C (77°F)
0 mm (0 in)
Hourly ›
Monday
20 Jul
Clear skies
19°C (66°F)
0 mm (0 in)
Clear skies
15°C (59°F)
0 mm (0 in)
Clear skies
23°C (73°F)
0 mm (0 in)
Clear skies
28°C (82°F)
0 mm (0 in)
Hourly ›
Tuesday
21 Jul
Clear skies
21°C (70°F)
0 mm (0 in)
Partly cloudy
17°C (63°F)
0 mm (0 in)
Clear skies
24°C (75°F)
0 mm (0 in)
Clear skies
30°C (86°F)
0 mm (0 in)
Hourly ›
Wednesday
22 Jul
Mostly clear
21°C (70°F)
0 mm (0 in)
Clear skies
16°C (61°F)
0 mm (0 in)
Clear skies
23°C (73°F)
0 mm (0 in)
Clear skies
29°C (84°F)
0 mm (0 in)
Hourly ›
Thursday
23 Jul
Clear skies
22°C (72°F)
0 mm (0 in)
Mostly sunny
18°C (64°F)
0 mm (0 in)
Clear skies
24°C (75°F)
0 mm (0 in)
Mostly clear
29°C (84°F)
0 mm (0 in)
Hourly ›
Friday
24 Jul
Clear skies
22°C (72°F)
0 mm (0 in)
Mostly sunny
16°C (61°F)
0 mm (0 in)
Mostly sunny
20°C (68°F)
0 mm (0 in)
Clear skies
27°C (81°F)
0 mm (0 in)
Hourly ›
Saturday
25 Jul
Clear skies
17°C (63°F)
0 mm (0 in)
Cloudy
15°C (59°F)
0.2 mm (0.01 in)
Cloudy
18°C (64°F)
0 mm (0 in)
Partly cloudy
23°C (73°F)
0 mm (0 in)
Hourly ›
Sunday
26 Jul
Partly cloudy
17°C (63°F)
0.1 mm (0 in)
Hourly ›
Data from MET Norway · Updated every three hours.

What's the weather in Mercer Island this week?

Today's weather - Friday 17 Jul

For Friday the predicted weather in Mercer Island is partly cloudy with some rain. The maximum temperature is a warm 23°C (73°F), while the minimum temperature is a mild 15°C (59°F).

Tomorrow's weather - Saturday 18 Jul

On Saturday, Mercer Island will be mostly sunny with some rain. High temperatures will reach a warm 22°C (72°F), with lows dropping to around 14°C (57°F).

10-Day Weather Forecast

Over the next 10 days, temperatures in Mercer Island will be will reach 30°C (86°F) on Tuesday before declining again, with average daytime highs of 27°C (81°F) and nighttime lows of 16°C (61°F) over this period. Compared to typical July conditions, these temperatures are typical. There will be plenty of sunshine during this period. Precipitation levels will be much less than usual (versus normal July rainfall), with mostly dry conditions. The wind will be generally calm during this period.

Weather Forecast FAQ for Mercer Island

When will be the warmest day next week?

The warmest day is expected to be Tuesday with a high of 30°C (86°F).

When will be the coldest day?

The coldest day is forecasted for Saturday with a low of 14°C (57°F).

Will it rain next week in Mercer Island?

No significant rainfall is currently expected during the next 10 days.

How much rainfall is expected next week?

A total of 0 mm (0 in) of rain is forecasted for the 10-day period.

What will be the temperature range next week?

Temperatures will range from 14°C (57°F) to 30°C (86°F).

More about Mercer Island

Explore the full Mercer Island climate overview with monthly averages, or check rainfall data and temperature by month.

Mercer Island weather by month

Browse monthly averages for Mercer Island: climate by month with temperature, rainfall and sunshine.

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