10-day forecast for Summit, WI: 52° to 81°, with precipitation expected on 8 days. The table below breaks each day into morning, afternoon, evening and overnight.
73°
Best day: Saturday, August 15
80° · 0.96 in
Worst day: Sunday, August 9
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 0980° / 65°0.96
Morning71°feels 72°
Afternoon74°feels 75°
Evening77°feels 79°
Overnight65°feels 65°
80 °
Summit, Sunday, 9 August
Heavy rain. High 80°, low 65°.
Pressure29.91 inHg
Wind8 mph SE
Humidity90%
Visibility6.2 mi
Dew point65°
Mon, 1081° / 66°0.36
Morning73°feels 74°
Afternoon81°feels 85°
Evening69°feels 71°
Overnight70°feels 71°
81 °
Summit, Monday, 10 August
Rain. High 81°, low 66°.
Pressure29.91 inHg
Wind8 mph E
Humidity77%
Visibility6.2 mi
Dew point72°
Tue, 1175° / 64°0.39
Morning70°feels 72°
Afternoon67°feels 68°
Evening70°feels 71°
Overnight65°feels 66°
75 °
Summit, Tuesday, 11 August
Rain. High 75°, low 64°.
Pressure29.80 inHg
Wind7.7 mph NE
Humidity94%
Visibility2.9 mi
Dew point70°
Wed, 1280° / 62°0.07
Morning67°feels 67°
Afternoon79°feels 79°
Evening76°feels 77°
Overnight62°feels 62°
80 °
Summit, Wednesday, 12 August
Light rain. High 80°, low 62°.
Pressure29.85 inHg
Wind6.5 mph NW
Humidity74%
Visibility6.2 mi
Dew point69°
Thu, 1370° / 56°0.19
Morning62°feels 62°
Afternoon69°feels 68°
Evening64°feels 64°
Overnight57°feels 56°
70 °
Summit, Thursday, 13 August
Light rain. High 70°, low 56°.
Pressure29.91 inHg
Wind12.5 mph N
Humidity55%
Visibility—
Dew point51°
Fri, 1473° / 52°0
Morning59°feels 58°
Afternoon71°feels 71°
Evening66°feels 66°
Overnight58°feels 57°
73 °
Summit, Friday, 14 August
Clear. High 73°, low 52°.
Pressure30.12 inHg
Wind9.5 mph W
Humidity61%
Visibility—
Dew point55°
Sat, 1573° / 55°0
Morning61°feels 61°
Afternoon73°feels 73°
Evening67°feels 67°
Overnight61°feels 60°
73 °
Summit, Saturday, 15 August
Overcast. High 73°, low 55°.
Pressure30.18 inHg
Wind8.7 mph W
Humidity64%
Visibility—
Dew point58°
Sun, 1676° / 58°0.07
Morning65°feels 65°
Afternoon74°feels 74°
Evening65°feels 65°
Overnight62°feels 63°
76 °
Summit, Sunday, 16 August
Light rain. High 76°, low 58°.
Pressure30.15 inHg
Wind7.2 mph SE
Humidity64%
Visibility—
Dew point61°
Mon, 1772° / 61°0.05
Morning65°feels 66°
Afternoon71°feels 72°
Evening67°feels 68°
Overnight64°feels 65°
72 °
Summit, Monday, 17 August
Light rain. High 72°, low 61°.
Pressure30.03 inHg
Wind10.6 mph SE
Humidity77%
Visibility—
Dew point63°
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, WI 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.