Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
LIVE: Severe weather outbreak unfolds. Watch storm chasers, expert analysis. Chevron right
Tropical Storm Arthur makes landfall in Texas. Click for the forecast. Chevron right

Sumner, IA

76°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Sumner

Iowa

76°
No results found.
Try searching for a city, zip code or point of interest.
Get Premium+
Create Your Account Unlock extended daily and hourly forecasts — all with your free account.
Let's Go Chevron right
Have an account already? Log In
settings
Help
Sumner, IA Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

News & Features

Astronomy

Business

Climate

Health

Recreation

Sports

Travel

For Business

Warnings

Data Suite

Forensics

Advertising

Superior Accuracy™

Video

Winter Center

Today Hourly 10-Day Radar MinuteCast®

Monthly

Air Quality Health & Activities

July

January February March April May June July August September October November December

2026

2025 2026 2027

10-Day

S
M
T
W
T
F
S
28
Humid with rain and a t-storm
79°
60°
29
Humid with rain
80°
62°
30
Humid with sun, then clouds
82°
61°
1
Considerable cloudiness
76°
59°
2
Partly sunny
78°
60°
3
Sunshine and a few clouds
77°
58°
4
Some sun, a t-storm possible
78°
63°
5
Mostly cloudy and humid
79°
65°
6
Mostly sunny and humid
83°
67°
7
Mostly sunny and humid
86°
68°
8
A couple of afternoon showers
85°
67°
9
Showers around in the p.m.
84°
67°
10
Sunny and uncomfortably humid
86°
66°
11
Mostly sunny and humid
86°
67°
12
Sunny and humid
85°
66°
13
Humid with clouds and sun
84°
66°
14
Mostly sunny and humid
82°
65°
15
Humid; a morning thunderstorm
85°
66°
16
Mostly sunny and less humid
82°
61°
17
Clouds and sun
78°
59°
18
A morning shower
78°
63°
19
Mostly sunny
79°
59°
20
Partly sunny
77°
58°
21
Mostly sunny
77°
59°
22
Plenty of sun
78°
62°
23
Sunshine and a few clouds
82°
66°
24
Mostly sunny and humid
84°
67°
25
A shower and thunderstorm
85°
66°
26
Morning rain, then t-storms
79°
65°
27
Mostly sunny and less humid
80°
61°
28
Humid with plenty of sunshine
83°
64°
29
Mostly sunny and humid
84°
61°
30
Humid with a t-storm or two
82°
58°
31
Humid; an afternoon t-shower
84°
60°
1
A morning thunderstorm or two
83°
58°

Temperature Graph

°F
90° 82° 74° 66° 58° Jul
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo

July Weather in Sumner

Sumner's July 2026 forecast shows daily high temperatures ranging from 76° to 86°, with overnight lows between 58° and 68°. The average high for July is 81° with an average low of 63°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Sumner. See also: August | September | October.

Further Ahead

August 2026

September 2026

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Hurricane

Arthur makes landfall in Texas, to raise flood risk across southern US

3 hours ago

Severe Weather

New severe weather outbreak with tornadoes unfolding for Midwest

2 hours ago

Weather News

Tropical Storm Arthur swamps cars in Texas as flood threat escalates

1 hour ago

Live Blog

Live: World Cup 2026 weather updates

LATEST ENTRY

Tropical Storm Arthur may impact travel to Houston World Cup match

7 hours ago

Astronomy

Moon to align with 3 planets in the nights before the summer solstice

7 hours ago

More Stories

Featured Stories

Weather News

South Florida wildfire sending smoke into nearby communities

6 hours ago

Recreation

Free climber dies after falling into volcanic crater in Yemen

5 hours ago

Health

Pickle is the pumpkin spice of summer

1 day ago

Climate

A mysterious ‘cold blob’ in the ocean has puzzled scientists

5 days ago

Weather News

Submersible ride revealed whale graveyard. It holds more than bones

1 day ago

World North America United States Iowa Sumner

Weather Near Sumner:

  • Cedar Rapids, IA
  • Iowa City, IA
  • Waterloo, IA
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
© 2026 AccuWeather, Inc. "AccuWeather" and sun design are registered trademarks of AccuWeather, Inc. All Rights Reserved.
Terms of Use | Privacy Policy | Cookie Policy | About Your Privacy Do Not Sell or Share My Personal Information | Data Sources

...

...

...