Mercer Island, WA Hourly Weather

King County8:15 AM PDT47.57°N, 122.22°WElevation 335 ft

Next 48 hours

8 AM 11 AM 2 PM 5 PM 8 PM 11 PM Tue Oct 27 2 AM 5 AM 8 AM 11 AM 2 PM 5 PM 8 PM 11 PM Wed Oct 28 2 AM 5 AM 40° 45° 50° 55° %
TemperatureFeels likeChance of precipitationNight
Monday, October 2616 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
8 AM Chance Light Rain 47° 47° 35% <0.01 in ENE 5 94% 45° 94% 0
9 AM Chance Light Rain 48° 48° 34% <0.01 in ENE 3 96% 47° 91% 0
10 AM Slight Chance Light Rain 49° 49° 19% <0.01 in ENE 2 98% 48° 85% 1
11 AM Mostly Cloudy 50° 50° 12% 0.00 in NE 2 99% 50° 78% 1
12 PM Mostly Cloudy 52° 52° 10% 0.00 in N 1 95% 51° 77% 2
1 PM Mostly Cloudy 53° 53° 12% 0.00 in WNW 1 89% 50° 75% 2
2 PM Mostly Cloudy 55° 55° 10% 0.00 in W 2 86% 51° 71% 2
3 PM Partly Sunny 55° 55° 11% 0.00 in WNW 2 84% 50° 67% 1
4 PM Partly Sunny 56° 56° 11% 0.00 in NW 2 83% 51° 61% 1
5 PM Chance Light Rain 55° 55° 27% 0.00 in NNW 2 83% 50° 60% 0
6 PM Slight Chance Light Rain 54° 54° 21% 0.00 in N 1 87% 50° 60% 0
7 PM Slight Chance Light Rain 53° 53° 19% 0.00 in SE 1 89% 50° 57% 0
8 PM Slight Chance Light Rain 52° 52° 19% 0.00 in SE 2 89% 49° 65% 0
9 PM Slight Chance Light Rain 51° 51° 18% 0.00 in SE 2 91% 48° 77% 0
10 PM Chance Light Rain 50° 50° 32% 0.00 in S 2 93% 48° 82% 0
11 PM Chance Light Rain 50° 50° 46% <0.01 in SSE 1 92% 48° 87% 0
Tuesday, October 2724 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Chance Light Rain 50° 50° 54% <0.01 in S 3 93% 48° 83% 0
1 AM Light Rain Likely 49° 49° 56% <0.01 in S 2 94% 47° 83% 0
2 AM Light Rain Likely 49° 49° 59% <0.01 in S 5 94% 47° 87% 0
3 AM Chance Light Rain 50° 49° 53% <0.01 in SSW 3 93% 48° 87% 0
4 AM Chance Light Rain 49° 48° 42% <0.01 in S 2 95% 48° 87% 0
5 AM Chance Light Rain 49° 48° 35% <0.01 in S 5 95% 48° 94% 0
6 AM Slight Chance Light Rain 49° 48° 22% <0.01 in SSW 5 94% 47° 94% 0
7 AM Cloudy 49° 48° 3% <0.01 in SSW 3 94% 47° 94% 0
8 AM Cloudy 48° 45° 2% <0.01 in SSW 3 G8 95% 47° 94% 0
9 AM Cloudy 49° 47° 4% <0.01 in SSW 3 G8 97% 48° 94% 0
10 AM Cloudy 49° 47° 3% <0.01 in SSW 5 98% 48° 94% 1
11 AM Slight Chance Light Rain 50° 47° 16% 0.00 in SSW 8 99% 50° 79% 1
12 PM Slight Chance Light Rain 52° 52° 24% 0.00 in SSW 8 92% 50° 79% 2
1 PM Chance Light Rain 54° 54° 27% 0.00 in SSW 9 85% 50° 79% 2
2 PM Slight Chance Light Rain 55° 55° 16% 0.00 in SSW 10 78% 48° 78% 2
3 PM Mostly Cloudy 56° 56° 14% 0.00 in SSW 12 74% 48° 78% 1
4 PM Chance Light Rain 55° 55° 27% 0.00 in SSW 10 72% 46° 78% 1
5 PM Light Rain Likely 55° 55° 70% <0.01 in SSW 10 73% 47° 80% 0
6 PM Light Rain Likely 54° 54° 70% <0.01 in SSW 10 76% 47° 80% 0
7 PM Light Rain Likely 53° 53° 70% <0.01 in SSW 10 78% 46° 80% 0
8 PM Light Rain Likely 51° 51° 70% <0.01 in SSW 8 G16 80% 45° 80% 0
9 PM Light Rain Likely 50° 46° 70% <0.01 in SSW 8 G16 83% 45° 80% 0
10 PM Light Rain Likely 49° 44° 70% <0.01 in SSW 8 G16 86% 45° 80% 0
11 PM Light Rain 48° 43° 93% 0.01 in SSW 9 G20 88% 45° 96% 0
Wednesday, October 2824 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Light Rain 48° 42° 93% 0.01 in SSW 9 G20 90% 45° 96% 0
1 AM Light Rain 48° 43° 93% 0.01 in SSW 9 G20 91% 45° 96% 0
2 AM Light Rain 48° 43° 93% 0.01 in SSW 8 G18 92% 46° 96% 0
3 AM Light Rain 48° 43° 93% 0.01 in SSW 8 G18 93% 46° 96% 0
4 AM Light Rain 47° 42° 93% 0.01 in SSW 8 G18 93% 45° 96% 0
5 AM Chance Light Rain 47° 42° 53% <0.01 in S 8 G17 93% 45° 85% 0
6 AM Chance Light Rain 46° 42° 53% <0.01 in S 8 G17 93% 45° 85% 0
7 AM Chance Light Rain 46° 41° 53% <0.01 in S 8 G17 93% 44° 85% 0
8 AM Chance Light Rain 46° 42° 53% <0.01 in S 7 G13 93% 44° 80% 0
9 AM Chance Light Rain 47° 43° 53% <0.01 in S 7 G13 94% 45° 80% 0
10 AM Chance Light Rain 48° 44° 53% <0.01 in S 7 G13 94% 46° 80% 1
11 AM Light Rain 49° 45° 84% <0.01 in SSW 8 G14 93% 47° 90% 1
12 PM Light Rain 51° 47° 84% <0.01 in SSW 8 G14 88% 47° 90% –
1 PM Light Rain 52° 52° 84% <0.01 in SSW 8 G14 82% 47° 90% –
2 PM Light Rain 53° 53° 84% <0.01 in SW 6 G12 78% 46° 90% –
3 PM Light Rain 53° 53° 84% <0.01 in SW 6 G12 78% 47° 90% –
4 PM Light Rain 53° 53° 84% <0.01 in SW 6 G12 80% 47° 90% –
5 PM Light Rain 52° 52° 86% <0.01 in SW 7 82% 47° 91% –
6 PM Light Rain 51° 49° 86% <0.01 in SW 7 83% 46° 91% –
7 PM Light Rain 49° 47° 86% <0.01 in SW 7 84% 45° 91% –
8 PM Light Rain 48° 46° 86% <0.01 in SSE 5 85% 44° 91% –
9 PM Light Rain 47° 45° 86% <0.01 in SSE 5 86% 43° 91% –
10 PM Light Rain 46° 44° 86% <0.01 in SSE 5 88% 42° 91% –
11 PM Light Rain 45° 43° 75% 0.01 in SSE 5 89% 42° 84% –
Thursday, October 2924 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Light Rain 45° 42° 75% 0.01 in SSE 5 91% 42° 84% –
1 AM Light Rain 44° 42° 75% 0.01 in SSE 5 93% 42° 84% –
2 AM Light Rain 44° 42° 75% 0.01 in SE 5 94% 42° 84% –
3 AM Light Rain 44° 42° 75% 0.01 in SE 5 95% 42° 84% –
4 AM Light Rain 43° 42° 75% 0.01 in SE 5 95% 42° 84% –
5 AM Light Rain Likely 43° 41° 67% <0.01 in ESE 3 95% 42° 84% –
6 AM Light Rain Likely 42° 41° 67% <0.01 in ESE 3 95% 41° 84% –
7 AM Light Rain Likely 42° 40° 67% <0.01 in ESE 3 95% 41° 84% –
8 AM Light Rain Likely 42° 40° 67% <0.01 in ESE 3 95% 41° 89% –
9 AM Light Rain Likely 43° 41° 67% <0.01 in ESE 3 97% 42° 89% –
10 AM Light Rain Likely 44° 43° 67% <0.01 in ESE 3 98% 44° 89% –
11 AM Light Rain Likely 46° 46° 55% <0.01 in E 2 98% 45° 80% –
12 PM Light Rain Likely 48° 48° 55% <0.01 in E 2 94% 46° 80% –
1 PM Light Rain Likely 49° 49° 55% <0.01 in E 2 88% 46° 80% –
2 PM Light Rain Likely 50° 49° 55% <0.01 in NNE 3 83% 45° 70% –
3 PM Light Rain Likely 50° 50° 55% <0.01 in NNE 3 81% 45° 70% –
4 PM Light Rain Likely 50° 50° 55% <0.01 in NNE 3 81% 45° 70% –
5 PM Chance Light Rain 51° 51° 53% <0.01 in N 2 77% 44° 71% –
6 PM Chance Light Rain 49° 49° 53% <0.01 in N 2 80% 43° 71% –
7 PM Chance Light Rain 47° 47° 53% <0.01 in N 2 83% 43° 71% –
8 PM Chance Light Rain 46° 46° 53% <0.01 in NE 2 86% 42° 71% –
9 PM Chance Light Rain 45° 45° 53% <0.01 in NE 2 87% 42° 71% –
10 PM Chance Light Rain 45° 45° 53% <0.01 in NE 2 88% 41° 71% –
11 PM Chance Light Rain 44° 44° 47% <0.01 in E 2 89% 41° 70% –
Friday, October 3024 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Chance Light Rain 43° 43° 47% <0.01 in E 2 91% 41° 70% –
1 AM Chance Light Rain 43° 43° 47% <0.01 in E 2 94% 41° 70% –
2 AM Chance Light Rain 42° 42° 47% <0.01 in E 2 96% 41° 70% –
3 AM Chance Light Rain 42° 42° 47% <0.01 in E 2 97% 41° 70% –
4 AM Chance Light Rain 41° 41° 47% <0.01 in E 2 97% 40° 70% –
5 AM Slight Chance Light Rain 41° 41° 17% 0.00 in E 2 96% 40° 78% –
6 AM Slight Chance Light Rain 41° 41° 17% 0.00 in E 2 96% 40° 78% –
7 AM Slight Chance Light Rain 41° 41° 17% 0.00 in E 2 96% 40° 78% –
8 AM Slight Chance Light Rain 41° 41° 17% 0.00 in ESE 2 96% 40° 78% –
9 AM Slight Chance Light Rain 42° 42° 17% 0.00 in ESE 2 96% 41° 78% –
10 AM Slight Chance Light Rain 44° 44° 17% 0.00 in ESE 2 95% 43° 78% –
11 AM Partly Sunny 46° 46° 6% 0.00 in ENE 1 93% 44° 61% –
12 PM Partly Sunny 48° 48° 6% 0.00 in ENE 1 88% 44° 61% –
1 PM Partly Sunny 50° 50° 6% 0.00 in ENE 1 82% 44° 61% –
2 PM Partly Sunny 51° 51° 6% 0.00 in NW 2 77% 44° 61% –
3 PM Partly Sunny 52° 52° 6% 0.00 in NW 2 73% 43° 61% –
4 PM Partly Sunny 52° 52° 6% 0.00 in NW 2 71% 43° 61% –
5 PM Mostly Sunny 51° 51° 8% 0.00 in NNW 1 71% 42° 36% –
6 PM Partly Cloudy 50° 50° 8% 0.00 in NNW 1 74% 42° 36% –
7 PM Partly Cloudy 48° 48° 8% 0.00 in NNW 1 79% 41° 36% –
8 PM Partly Cloudy 46° 46° 8% 0.00 in NE 1 83% 41° 36% –
9 PM Partly Cloudy 45° 45° 8% 0.00 in NE 1 83% 40° 36% –
10 PM Partly Cloudy 45° 45° 8% 0.00 in NE 1 82% 40° 36% –
11 PM Partly Cloudy 44° 44° 6% 0.00 in E 1 82% 39° 37% –
Saturday, October 3124 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Partly Cloudy 43° 43° 6% 0.00 in E 1 85% 39° 37% –
1 AM Partly Cloudy 41° 41° 6% 0.00 in E 1 89% 38° 37% –
2 AM Partly Cloudy 40° 40° 6% 0.00 in ESE 2 92% 38° 37% –
3 AM Partly Cloudy 39° 39° 6% 0.00 in ESE 2 93% 38° 37% –
4 AM Partly Cloudy 39° 39° 6% 0.00 in ESE 2 93% 37° 37% –
5 AM Mostly Cloudy 39° 39° 4% 0.00 in ESE 2 92% 37° 55% –
6 AM Partly Sunny 38° 38° 4% 0.00 in ESE 2 94% 37° 55% –
7 AM Partly Sunny 38° 38° 4% 0.00 in ESE 2 96% 37° 55% –
8 AM Partly Sunny 38° 38° 4% 0.00 in ESE 1 96% 37° 55% –
9 AM Partly Sunny 40° 40° 4% 0.00 in ESE 1 93% 38° 55% –
10 AM Partly Sunny 43° 43° 4% 0.00 in ESE 1 88% 40° 55% –
11 AM Mostly Sunny 46° 46° 4% 0.00 in E 1 83% 41° 50% –
12 PM Mostly Sunny 49° 49° 4% 0.00 in E 1 76% 42° 50% –
1 PM Mostly Sunny 51° 51° 4% 0.00 in E 1 70% 42° 50% –
2 PM Mostly Sunny 53° 53° 4% 0.00 in NNW 2 66% 42° 50% –
3 PM Mostly Sunny 54° 54° 4% 0.00 in NNW 2 65% 42° 50% –
4 PM Mostly Sunny 53° 53° 4% 0.00 in NNW 2 66% 42° 50% –
5 PM Mostly Sunny 52° 52° 6% 0.00 in NNW 2 69% 42° 42% –
6 PM Partly Cloudy 50° 50° 6% 0.00 in NNW 2 73% 42° 42% –
7 PM Partly Cloudy 48° 48° 6% 0.00 in NNW 2 78% 41° 42% –
8 PM Partly Cloudy 46° 46° 6% 0.00 in NNE 1 83% 41° 42% –
9 PM Partly Cloudy 45° 45° 6% 0.00 in NNE 1 83% 40° 42% –
10 PM Partly Cloudy 45° 45° 6% 0.00 in NNE 1 83% 40° 42% –
11 PM Mostly Cloudy 44° 44° 6% 0.00 in E 2 82% 39° 58% –
Sunday, November 111 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Mostly Cloudy 43° 43° 6% 0.00 in E 2 84% 39° 58% –
1 AM Mostly Cloudy 42° 42° 6% 0.00 in E 2 87% 38° 58% –
1 AM Mostly Cloudy 41° 41° 6% 0.00 in SE 2 89% 38° 58% –
2 AM Mostly Cloudy 41° 41° 6% 0.00 in SE 2 90% 38° 58% –
3 AM Mostly Cloudy 40° 40° 6% 0.00 in SE 2 91% 38° 58% –
4 AM Mostly Cloudy 40° 40° 4% 0.00 in SE 2 92% 38° 67% –
5 AM Mostly Cloudy 39° 39° 4% 0.00 in SE 2 95% 38° 67% –
6 AM Partly Sunny 39° 39° 4% 0.00 in SE 2 96% 38° 67% –
7 AM Partly Sunny 39° 39° 4% 0.00 in SE 2 96% 38° 67% –
8 AM Partly Sunny 41° 41° 4% 0.00 in SE 2 93% 39° 67% –
9 AM Partly Sunny 44° 44° 4% 0.00 in SE 2 88% 41° 67% –

National Weather Service forecast updated 8 hrs ago. Precipitation amounts are the forecast liquid equivalent for each hour.

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Search index and reflects what the press published. Terms of use. How to use Weather