Hourly Weather Forecast - Mercer Island, WA

12 AM
45°F
60%
2mph
S
60% Chance of Light Rain
Humidity
99%
Feels like
45°F
Dew Point
45°F
1 AM
45°F
60%
2mph
S
60% Chance of Light Rain
Humidity
99%
Feels like
45°F
Dew Point
44°F
2 AM
44°F
60%
2mph
S
60% Chance of Light Rain
Humidity
99%
Feels like
44°F
Dew Point
44°F
3 AM
44°F
60%
2mph
S
60% Chance of Light Rain
Humidity
99%
Feels like
44°F
Dew Point
44°F
4 AM
44°F
60%
2mph
S
60% Chance of Light Rain
Humidity
97%
Feels like
44°F
Dew Point
43°F
5 AM
44°F
60%
2mph
S
60% Chance of Light Rain
Humidity
97%
Feels like
44°F
Dew Point
43°F
6 AM
44°F
60%
2mph
S
60% Chance of Light Rain
Humidity
96%
Feels like
44°F
Dew Point
43°F
6:42 AM
7 AM
45°F
50%
2mph
S
50% Chance of Light Rain
Humidity
94%
Feels like
45°F
Dew Point
43°F
8 AM
46°F
30%
2mph
S
30% Chance of Light Rain
Humidity
92%
Feels like
46°F
Dew Point
44°F
9 AM
47°F
30%
3mph
SSW
30% Chance of Light Rain
Humidity
91%
Feels like
47°F
Dew Point
44°F
10 AM
47°F
30%
3mph
SSW
30% Chance of Light Rain
Humidity
90%
Feels like
47°F
Dew Point
45°F
11 AM
48°F
30%
3mph
SSW
30% Chance of Light Rain
Humidity
88%
Feels like
48°F
Dew Point
45°F
12 PM
49°F
20%
3mph
SSW
Mostly Cloudy
Humidity
85%
Feels like
49°F
Dew Point
45°F
1 PM
49°F
20%
3mph
SSW
Mostly Cloudy
Humidity
83%
Feels like
49°F
Dew Point
44°F
2 PM
49°F
20%
2mph
SSW
Mostly Cloudy
Humidity
82%
Feels like
49°F
Dew Point
44°F
3 PM
49°F
20%
2mph
S
Cloudy
Humidity
84%
Feels like
49°F
Dew Point
44°F
4 PM
48°F
60%
2mph
S
60% Chance of Light Rain
Humidity
86%
Feels like
48°F
Dew Point
44°F
5 PM
46°F
60%
2mph
S
60% Chance of Light Rain
Humidity
88%
Feels like
46°F
Dew Point
43°F
5:59 PM
6 PM
46°F
60%
2mph
S
60% Chance of Light Rain
Humidity
91%
Feels like
46°F
Dew Point
43°F
7 PM
45°F
60%
2mph
S
60% Chance of Light Rain
Humidity
91%
Feels like
45°F
Dew Point
42°F
8 PM
45°F
60%
2mph
S
60% Chance of Light Rain
Humidity
91%
Feels like
45°F
Dew Point
42°F
9 PM
44°F
60%
2mph
S
60% Chance of Light Rain
Humidity
92%
Feels like
44°F
Dew Point
42°F
10 PM
44°F
60%
2mph
S
60% Chance of Light Rain
Humidity
92%
Feels like
44°F
Dew Point
42°F
11 PM
44°F
70%
2mph
S
70% Chance of Light Rain
Humidity
94%
Feels like
44°F
Dew Point
42°F

Snow and Ice Accumulations through Tuesday

Wintry Disturbance Hits Northeastern U.S.

A wintry disturbance will continue northeastward, buffeting the northeastern U.S. with light snow, freezing rain, and plain rain through Tuesday night.

Today's Weather Outlook

Today's Weather Outlook

Weekly Drought Map for February 26, 2026

Widespread Drought Degradation For South, Southeast; Mixed Results Elsewhere

Debris flies through the air as howling winds accompanied by a line of storms approach the old Tarrant County Courthouse in downtown Fort Worth, Texas, on March 2, 2023. (Tom Fox/The Dallas Morning News via AP)

Lightning Season Rapidly Approaching: Best Safety Practices

Rocky Mountain National Park at day in December. (NPS Natural Resources/Wikimedia Commons)

Snowmelt and Flooding

U.S. Route 52 near St. Donatus between Bellevue and Dubuque, Iowa. (Tony Webster from Portland, Oregon)

Winter Weather Driving Safety Tips

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