10-day forecast for Sumner, WA: 39° to 73°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
73°
Best day: Friday, October 16
54° · 0.42 in
Worst day: Monday, October 19
Tap any day below to see morning, afternoon, evening and overnight.
Tue, 1363° / 40°0
Morning45°feels 45°
Afternoon62°feels 60°
Evening52°feels 50°
Overnight40°feels 40°
63 °
Sumner, Tuesday, 13 October
Overcast. High 63°, low 40°.
Pressure30.21 inHg
Wind1.7 mph SE
Humidity55%
Visibility6.2 mi
Dew point41°
Wed, 1466° / 48°0
Morning50°feels 49°
Afternoon66°feels 65°
Evening58°feels 57°
Overnight48°feels 46°
66 °
Sumner, Wednesday, 14 October
Mostly clear. High 66°, low 48°.
Pressure30.30 inHg
Wind1.2 mph SW
Humidity64%
Visibility6.2 mi
Dew point50°
Thu, 1572° / 47°0
Morning48°feels 47°
Afternoon70°feels 70°
Evening63°feels 62°
Overnight49°feels 49°
72 °
Sumner, Thursday, 15 October
Mostly clear. High 72°, low 47°.
Pressure30.30 inHg
Wind3 mph NW
Humidity69%
Visibility6.2 mi
Dew point52°
Fri, 1673° / 49°0
Morning49°feels 48°
Afternoon73°feels 73°
Evening70°feels 69°
Overnight55°feels 53°
73 °
Sumner, Friday, 16 October
Partly cloudy. High 73°, low 49°.
Pressure30.12 inHg
Wind2.1 mph S
Humidity57%
Visibility6.2 mi
Dew point51°
Sat, 1765° / 52°0.06
Morning58°feels 58°
Afternoon60°feels 60°
Evening57°feels 56°
Overnight53°feels 52°
65 °
Sumner, Saturday, 17 October
Light rain. High 65°, low 52°.
Pressure30.12 inHg
Wind10.3 mph SW
Humidity75%
Visibility—
Dew point52°
Sun, 1861° / 41°0
Morning46°feels 46°
Afternoon55°feels 53°
Evening59°feels 57°
Overnight48°feels 48°
61 °
Sumner, Sunday, 18 October
Mostly clear. High 61°, low 41°.
Pressure30.00 inHg
Wind3.6 mph S
Humidity74%
Visibility—
Dew point44°
Mon, 1954° / 47°0.42
Morning49°feels 48°
Afternoon51°feels 50°
Evening52°feels 51°
Overnight48°feels 46°
54 °
Sumner, Monday, 19 October
Light rain. High 54°, low 47°.
Pressure29.74 inHg
Wind7.3 mph SW
Humidity90%
Visibility—
Dew point47°
Tue, 2056° / 43°0.06
Morning47°feels 47°
Afternoon52°feels 51°
Evening53°feels 52°
Overnight48°feels 48°
56 °
Sumner, Tuesday, 20 October
Light rain. High 56°, low 43°.
Pressure29.97 inHg
Wind3.1 mph SW
Humidity81%
Visibility—
Dew point45°
Wed, 2160° / 45°0
Morning48°feels 48°
Afternoon53°feels 51°
Evening56°feels 54°
Overnight51°feels 49°
60 °
Sumner, Wednesday, 21 October
Overcast. High 60°, low 45°.
Pressure30.12 inHg
Wind5.6 mph SW
Humidity70%
Visibility—
Dew point42°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Sumner, WA around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.