10-day forecast for Sumner, IA: 32° to 82°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
82°
Best day: Saturday, October 10
74° · 0.6 in
Worst day: Friday, October 9
Tap any day below to see morning, afternoon, evening and overnight.
Sat, 1082° / 59°0
Morning61°feels 62°
Afternoon81°feels 82°
Evening69°feels 69°
Overnight63°feels 63°
82 °
Sumner, Saturday, 10 October
Clear. High 82°, low 59°.
Pressure29.91 inHg
Wind13.5 mph S
Humidity63%
Visibility6.2 mi
Dew point62°
Sun, 1178° / 57°0
Morning57°feels 57°
Afternoon77°feels 77°
Evening69°feels 69°
Overnight61°feels 60°
78 °
Sumner, Sunday, 11 October
Clear. High 78°, low 57°.
Pressure29.85 inHg
Wind10.2 mph S
Humidity58%
Visibility6.2 mi
Dew point57°
Mon, 1282° / 66°0
Morning66°feels 66°
Afternoon81°feels 82°
Evening74°feels 75°
Overnight68°feels 68°
82 °
Sumner, Monday, 12 October
Mostly clear. High 82°, low 66°.
Pressure29.71 inHg
Wind8.8 mph SW
Humidity62%
Visibility6.2 mi
Dew point64°
Tue, 1367° / 58°0
Morning59°feels 59°
Afternoon66°feels 65°
Evening62°feels 61°
Overnight65°feels 65°
67 °
Sumner, Tuesday, 13 October
Overcast. High 67°, low 58°.
Pressure29.94 inHg
Wind8.8 mph N
Humidity70%
Visibility6.2 mi
Dew point54°
Wed, 1462° / 55°0.02
Morning57°feels 56°
Afternoon60°feels 59°
Evening59°feels 58°
Overnight56°feels 55°
62 °
Sumner, Wednesday, 14 October
Light rain. High 62°, low 55°.
Pressure30.09 inHg
Wind10.8 mph E
Humidity70%
Visibility—
Dew point50°
Thu, 1556° / 52°0.28
Morning53°feels 52°
Afternoon55°feels 55°
Evening54°feels 54°
Overnight54°feels 54°
56 °
Sumner, Thursday, 15 October
Rain. High 56°, low 52°.
Pressure29.91 inHg
Wind13.2 mph SE
Humidity86%
Visibility—
Dew point51°
Fri, 1653° / 39°0.31
Morning44°feels 36°
Afternoon46°feels 38°
Evening40°feels 29°
Overnight39°feels 29°
53 °
Sumner, Friday, 16 October
Rain. High 53°, low 39°.
Pressure29.88 inHg
Wind27 mph NW
Humidity52%
Visibility—
Dew point30°
Sat, 1744° / 33°0
Morning35°feels 25°
Afternoon41°feels 34°
Evening37°feels 34°
Overnight34°feels 32°
44 °
Sumner, Saturday, 17 October
Partly cloudy. High 44°, low 33°.
Pressure30.45 inHg
Wind24.5 mph NW
Humidity44%
Visibility—
Dew point20°
Sun, 1854° / 32°0
Morning37°feels 29°
Afternoon49°feels 44°
Evening46°feels 42°
Overnight41°feels 36°
54 °
Sumner, Sunday, 18 October
Overcast. High 54°, low 32°.
Pressure30.18 inHg
Wind17.6 mph S
Humidity47%
Visibility—
Dew point28°
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, IA 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.