10-day forecast for Summit, WA: 39° to 73°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.
73°
Best day: Friday, October 16
51° · 0.07 in
Worst day: Thursday, October 22
Tap any day below to see morning, afternoon, evening and overnight.
Fri, 1673° / 52°0
Morning54°feels 53°
Afternoon72°feels 71°
Evening59°feels 58°
Overnight53°feels 52°
73 °
Summit, Friday, 16 October
Overcast. High 73°, low 52°.
Pressure30.15 inHg
Wind0.7 mph SW
Humidity56%
Visibility6.2 mi
Dew point49°
Sat, 1762° / 51°0.1
Morning55°feels 55°
Afternoon62°feels 61°
Evening54°feels 52°
Overnight55°feels 54°
62 °
Summit, Saturday, 17 October
Rain. High 62°, low 51°.
Pressure30.27 inHg
Wind5.7 mph SW
Humidity58%
Visibility6.2 mi
Dew point47°
Sun, 1858° / 45°0
Morning45°feels 43°
Afternoon58°feels 56°
Evening50°feels 48°
Overnight47°feels 46°
58 °
Summit, Sunday, 18 October
Overcast. High 58°, low 45°.
Pressure30.12 inHg
Wind5 mph NE
Humidity74%
Visibility6.2 mi
Dew point46°
Mon, 1958° / 45°0.08
Morning45°feels 45°
Afternoon58°feels 56°
Evening51°feels 49°
Overnight46°feels 46°
58 °
Summit, Monday, 19 October
Light rain. High 58°, low 45°.
Pressure29.88 inHg
Wind4.1 mph SW
Humidity68%
Visibility6.2 mi
Dew point44°
Tue, 2056° / 41°0
Morning45°feels 44°
Afternoon51°feels 50°
Evening54°feels 53°
Overnight46°feels 46°
56 °
Summit, Tuesday, 20 October
Overcast. High 56°, low 41°.
Pressure30.12 inHg
Wind6.9 mph NE
Humidity84%
Visibility—
Dew point45°
Wed, 2163° / 42°0
Morning46°feels 45°
Afternoon56°feels 54°
Evening59°feels 57°
Overnight46°feels 44°
63 °
Summit, Wednesday, 21 October
Mostly clear. High 63°, low 42°.
Pressure30.00 inHg
Wind4.5 mph S
Humidity59%
Visibility—
Dew point39°
Thu, 2251° / 43°0.07
Morning47°feels 47°
Afternoon51°feels 49°
Evening49°feels 48°
Overnight44°feels 42°
51 °
Summit, Thursday, 22 October
Light rain. High 51°, low 43°.
Pressure30.03 inHg
Wind4.6 mph S
Humidity75%
Visibility—
Dew point43°
Fri, 2355° / 41°0.06
Morning46°feels 44°
Afternoon50°feels 48°
Evening50°feels 49°
Overnight43°feels 43°
55 °
Summit, Friday, 23 October
Light rain. High 55°, low 41°.
Pressure30.33 inHg
Wind5.3 mph SW
Humidity73%
Visibility—
Dew point41°
Sat, 2454° / 39°0
Morning42°feels 42°
Afternoon49°feels 49°
Evening52°feels 50°
Overnight42°feels 42°
54 °
Summit, Saturday, 24 October
Overcast. High 54°, low 39°.
Pressure30.59 inHg
Wind4.2 mph N
Humidity76%
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.