10-day forecast for Summit, WA: 39° to 72°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.
72°
Best day: Friday, October 16
58° · 0.62 in
Worst day: Monday, October 19
Tap any day below to see morning, afternoon, evening and overnight.
Tue, 1361° / 43°0
Morning45°feels 45°
Afternoon60°feels 58°
Evening55°feels 53°
Overnight43°feels 43°
61 °
Summit, Tuesday, 13 October
Partly cloudy. High 61°, low 43°.
Pressure30.21 inHg
Wind2 mph SW
Humidity59%
Visibility6.2 mi
Dew point43°
Wed, 1464° / 49°0
Morning49°feels 49°
Afternoon64°feels 63°
Evening57°feels 56°
Overnight50°feels 49°
64 °
Summit, Wednesday, 14 October
Partly cloudy. High 64°, low 49°.
Pressure30.30 inHg
Wind1.5 mph S
Humidity70%
Visibility6.2 mi
Dew point52°
Thu, 1568° / 47°0
Morning47°feels 47°
Afternoon67°feels 66°
Evening60°feels 59°
Overnight51°feels 50°
68 °
Summit, Thursday, 15 October
Mostly clear. High 68°, low 47°.
Pressure30.30 inHg
Wind1.9 mph N
Humidity73%
Visibility6.2 mi
Dew point50°
Fri, 1672° / 47°0
Morning52°feels 51°
Afternoon63°feels 62°
Evening67°feels 66°
Overnight53°feels 53°
72 °
Summit, Friday, 16 October
Overcast. High 72°, low 47°.
Pressure30.12 inHg
Wind7.1 mph W
Humidity69%
Visibility—
Dew point49°
Sat, 1760° / 50°0.13
Morning57°feels 56°
Afternoon59°feels 58°
Evening59°feels 58°
Overnight52°feels 51°
60 °
Summit, Saturday, 17 October
Light rain. High 60°, low 50°.
Pressure30.09 inHg
Wind8.6 mph SW
Humidity78%
Visibility—
Dew point51°
Sun, 1863° / 46°0
Morning49°feels 49°
Afternoon58°feels 56°
Evening60°feels 58°
Overnight51°feels 50°
63 °
Summit, Sunday, 18 October
Overcast. High 63°, low 46°.
Pressure30.15 inHg
Wind3.7 mph S
Humidity68%
Visibility—
Dew point45°
Mon, 1958° / 49°0.62
Morning52°feels 51°
Afternoon57°feels 55°
Evening52°feels 51°
Overnight49°feels 47°
58 °
Summit, Monday, 19 October
Rain. High 58°, low 49°.
Pressure29.77 inHg
Wind14.1 mph S
Humidity58%
Visibility—
Dew point42°
Tue, 2058° / 45°0.09
Morning51°feels 46°
Afternoon55°feels 53°
Evening54°feels 51°
Overnight46°feels 42°
58 °
Summit, Tuesday, 20 October
Light rain. High 58°, low 45°.
Pressure30.06 inHg
Wind13.4 mph SW
Humidity54%
Visibility—
Dew point38°
Wed, 2150° / 46°0.04
Morning47°feels 47°
Afternoon49°feels 49°
Evening50°feels 49°
Overnight49°feels 49°
50 °
Summit, Wednesday, 21 October
Light rain. High 50°, low 46°.
Pressure30.15 inHg
Wind4.1 mph NW
Humidity70%
Visibility—
Dew point40°
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 Summit, 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.