0in

Rain Today

Rain Last Hour
0in

Recorded at Renton Municipal Airport Updated 39 mins ago (9.5 miles away)

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Real-Time Extremes

Hottest 98.5 °F
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Coldest 28.3 °F
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Windiest 27.5mph
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Wettest (Last Hour) 0.8in
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Most Humid 100%
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Least Humid 13%
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Highest Pressure 1043.7 hPa
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Lowest Pressure 988 hPa
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Lake Sammamish Rainfall Forecast

Today 17 Sep
No Rain
Fri 18 Sep
No Rain
Sat 19 Sep
No Rain
Sun 20 Sep
No Rain
Mon 21 Sep
10%
Tue 22 Sep
20%
Wed 23 Sep
15%

Lake Sammamish Rainfall Statistics

September Rainfall

Renton Municipal Airport (9.3 miles)

Total Rainfall 2026
18.3in
Daily Average 2026
0.1in
Wettest Day 13 March, 2026
1.3in
Wet Days 2026
70/260 (27%)
Total Rainfall August
0.3in
Daily Average August
0.01in
Wettest Day 29 August, 2026
0.3in
Wet Days August
1/31 (3%)
Total Rainfall September
0.7in
Daily Average September
0.05in
Wettest Day 13 September, 2026
0.5in
Wet Days September
5/17 (29%)

Climate (2021–2025)

Renton Municipal Airport (9.3 miles)

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Annual Average 2021–2025
16.7in
Monthly Average 2021–2026
1.5in
Daily Average 2021–2026
0.1in
Wettest Day 28 October, 2021
1.5in

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