0in

Rain Today

Rain Last Hour
0in

Recorded at Hermiston, Hermiston Municipal Airport Updated 14 mins ago (16.2 miles away)

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Real-Time Extremes

Hottest 84.1 °F
Weno Island - Chuuk Int. Airport, HI
Coldest -50.9 °F
Northway, Northway Airport, AK
Windiest 54.1mph
Mount Washington, NH
Wettest (Last Hour) 0.3in
Stampede Pass, WA
Most Humid 100%
Williston Basin International Airport, ND
Least Humid 15%
Avalon Catalina Airport, CA
Highest Pressure 1038.3 hPa
Marshall, AK
Lowest Pressure 985.1 hPa
Greenville, ME

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McCormack Slough Rainfall Forecast

Today 11 Dec
15%
Fri 12 Dec
No Rain
Sat 13 Dec
No Rain
Sun 14 Dec
15%
Mon 15 Dec
65%
Tue 16 Dec
50%
Wed 17 Dec
45%

McCormack Slough Rainfall Statistics

December Rainfall

Hermiston, Hermiston Municipal Airport (16.2 miles)

Total Rainfall 2025
9in
Daily Average 2025
0.03in
Wettest Day 7 April, 2025
0.6in
Wet Days 2025
71/345 (21%)
Total Rainfall November
1.2in
Daily Average November
0.1in
Wettest Day 28 November, 2025
0.4in
Wet Days November
11/30 (37%)
Total Rainfall December
0.4in
Daily Average December
0.1in
Wettest Day 4 December, 2025
0.3in
Wet Days December
3/11 (27%)

Climate (2010–Present)

Hermiston, Hermiston Municipal Airport (16.2 miles)

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Annual Average 2020–2024
8.2in
Monthly Average 2020–2025
0.8in
Daily Average 2020–2025
0.03in
Wettest Day 5 May, 2024
1.1in

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