10-day forecast for Summit, WA: 38° to 73°, with precipitation expected on 1 day. The table below breaks each day into morning, afternoon, evening and overnight.
73°
Best day: Friday, October 16
63° · 0.09 in
Worst day: Saturday, October 17
Tap any day below to see morning, afternoon, evening and overnight.
Thu, 1571° / 49°0
Morning50°feels 50°
Afternoon70°feels 69°
Evening59°feels 59°
Overnight50°feels 49°
71 °
Summit, Thursday, 15 October
Clear. High 71°, low 49°.
Pressure30.36 inHg
Wind2 mph N
Humidity69%
Visibility6.2 mi
Dew point49°
Fri, 1673° / 47°0
Morning48°feels 48°
Afternoon71°feels 70°
Evening61°feels 60°
Overnight56°feels 56°
73 °
Summit, Friday, 16 October
Overcast. High 73°, low 47°.
Pressure30.18 inHg
Wind0.7 mph SW
Humidity57%
Visibility6.2 mi
Dew point50°
Sat, 1763° / 51°0.09
Morning55°feels 55°
Afternoon62°feels 61°
Evening54°feels 52°
Overnight54°feels 53°
63 °
Summit, Saturday, 17 October
Rain. High 63°, low 51°.
Pressure30.27 inHg
Wind7 mph SW
Humidity58%
Visibility6.2 mi
Dew point48°
Sun, 1859° / 44°0
Morning44°feels 42°
Afternoon59°feels 57°
Evening56°feels 55°
Overnight48°feels 45°
59 °
Summit, Sunday, 18 October
Overcast. High 59°, low 44°.
Pressure30.06 inHg
Wind5.7 mph N
Humidity70%
Visibility6.2 mi
Dew point45°
Mon, 1959° / 46°0.01
Morning49°feels 48°
Afternoon56°feels 54°
Evening57°feels 56°
Overnight49°feels 49°
59 °
Summit, Monday, 19 October
Light rain. High 59°, low 46°.
Pressure30.00 inHg
Wind5.5 mph SW
Humidity69%
Visibility—
Dew point44°
Tue, 2058° / 43°0
Morning47°feels 47°
Afternoon53°feels 51°
Evening56°feels 54°
Overnight44°feels 44°
58 °
Summit, Tuesday, 20 October
Partly cloudy. High 58°, low 43°.
Pressure30.15 inHg
Wind5.8 mph N
Humidity65%
Visibility—
Dew point40°
Wed, 2162° / 41°0
Morning44°feels 43°
Afternoon54°feels 52°
Evening59°feels 57°
Overnight46°feels 46°
62 °
Summit, Wednesday, 21 October
Overcast. High 62°, low 41°.
Pressure30.09 inHg
Wind3.4 mph W
Humidity59%
Visibility—
Dew point37°
Thu, 2257° / 43°0
Morning48°feels 47°
Afternoon53°feels 51°
Evening54°feels 52°
Overnight44°feels 44°
57 °
Summit, Thursday, 22 October
Overcast. High 57°, low 43°.
Pressure30.15 inHg
Wind6 mph N
Humidity68%
Visibility—
Dew point41°
Fri, 2358° / 38°0
Morning42°feels 42°
Afternoon52°feels 49°
Evening55°feels 53°
Overnight42°feels 42°
58 °
Summit, Friday, 23 October
Mostly clear. High 58°, low 38°.
Pressure30.39 inHg
Wind5.5 mph N
Humidity55%
Visibility—
Dew point34°
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.