10-day forecast for Sumner, MI: 50° to 90°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
86°
Best day: Wednesday, August 12
90° · 0.61 in
Worst day: Monday, August 10
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 0982° / 65°0
Morning66°feels 66°
Afternoon79°feels 79°
Evening75°feels 75°
Overnight67°feels 67°
82 °
Sumner, Sunday, 9 August
Light rain. High 82°, low 65°.
Pressure29.97 inHg
Wind12.9 mph S
Humidity38%
Visibility6.2 mi
Dew point53°
Mon, 1090° / 70°0.61
Morning70°feels 72°
Afternoon84°feels 88°
Evening79°feels 79°
Overnight71°feels 72°
90 °
Sumner, Monday, 10 August
Heavy rain. High 90°, low 70°.
Pressure29.91 inHg
Wind8 mph SW
Humidity75%
Visibility6.2 mi
Dew point69°
Tue, 1177° / 64°0.33
Morning66°feels 67°
Afternoon71°feels 72°
Evening70°feels 71°
Overnight66°feels 66°
77 °
Sumner, Tuesday, 11 August
Rain. High 77°, low 64°.
Pressure29.91 inHg
Wind7.1 mph S
Humidity76%
Visibility6.2 mi
Dew point67°
Wed, 1286° / 61°0
Morning64°feels 63°
Afternoon84°feels 84°
Evening74°feels 74°
Overnight63°feels 63°
86 °
Sumner, Wednesday, 12 August
Clear. High 86°, low 61°.
Pressure29.83 inHg
Wind5.9 mph W
Humidity56%
Visibility6.2 mi
Dew point61°
Thu, 1376° / 57°0.28
Morning61°feels 61°
Afternoon72°feels 71°
Evening65°feels 64°
Overnight57°feels 55°
76 °
Sumner, Thursday, 13 August
Rain. High 76°, low 57°.
Pressure29.91 inHg
Wind11.9 mph N
Humidity39%
Visibility—
Dew point45°
Fri, 1474° / 50°0
Morning58°feels 56°
Afternoon71°feels 70°
Evening66°feels 64°
Overnight56°feels 55°
74 °
Sumner, Friday, 14 August
Clear. High 74°, low 50°.
Pressure30.12 inHg
Wind13.5 mph N
Humidity41%
Visibility—
Dew point44°
Sat, 1576° / 52°0
Morning61°feels 60°
Afternoon72°feels 71°
Evening68°feels 67°
Overnight60°feels 59°
76 °
Sumner, Saturday, 15 August
Overcast. High 76°, low 52°.
Pressure30.30 inHg
Wind10.2 mph SW
Humidity45%
Visibility—
Dew point48°
Sun, 1678° / 55°0
Morning65°feels 64°
Afternoon77°feels 77°
Evening70°feels 70°
Overnight61°feels 61°
78 °
Sumner, Sunday, 16 August
Partly cloudy. High 78°, low 55°.
Pressure30.21 inHg
Wind12.6 mph SW
Humidity43%
Visibility—
Dew point52°
Mon, 1779° / 60°0.02
Morning67°feels 67°
Afternoon78°feels 78°
Evening71°feels 71°
Overnight68°feels 68°
79 °
Sumner, Monday, 17 August
Light rain. High 79°, low 60°.
Pressure30.00 inHg
Wind10.5 mph SW
Humidity56%
Visibility—
Dew point60°
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, MI 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.