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Sweltering 90-100 F heat to expand, affect 170 million in central and eastern US. Details here Chevron right
Severe storms sweep Northeast, teen struck by lightning in Central Park. Read more Chevron right

Sumner, IA

76°F
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Winter Center
Today Hourly

Daily

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Heat Advisory

June 22 - August 5

Sun 6/22

92° /73°
1%
Partly sunny, windy and humid
alerts

Heat Advisory

12:00 PM Saturday - 9:00 PM Sunday

RealFeel®96°

RealFeel Shade™92°

Max UV Index10 (Very High)

WindS 21 mph

Mon 6/23

84° /66°
80%
Mostly cloudy; not as hot; breezy in the morning, then a heavy thunderstorm, humid; thunderstorms could bring damaging winds, flash flooding and hail

RealFeel®89°

RealFeel Shade™86°

Max UV Index5 (Moderate)

WindWSW 14 mph

Tue 6/24

74° /69°
95%
Cloudy and not as warm but humid with a couple of showers and a thunderstorm

RealFeel®79°

RealFeel Shade™79°

Max UV Index3 (Moderate)

WindNE 7 mph

Wed 6/25

82° /68°
88%
Cloudy, warmer and very humid with a couple of showers and a thunderstorm

RealFeel®90°

RealFeel Shade™89°

Max UV Index3 (Moderate)

WindSW 10 mph

Thu 6/26

83° /64°
88%
Variable cloudiness with a couple of thunderstorms; humid

RealFeel®91°

RealFeel Shade™87°

Max UV Index9 (Very High)

WindSSW 12 mph

Fri 6/27

83° /67°
60%
Cloudy and humid; occasional rain and a thunderstorm in the morning followed by a thunderstorm in spots in the afternoon

RealFeel®89°

RealFeel Shade™86°

Max UV Index3 (Moderate)

WindSW 6 mph

Sat 6/28

82° /67°
62%
Cloudy and very humid; occasional morning rain and a thunderstorm, watch for a strong thunderstorm in the afternoon

RealFeel®89°

RealFeel Shade™88°

Max UV Index2 (Low)

WindS 9 mph

Sun 6/29

79° /62°
77%
Watch for strong thunderstorms in the afternoon; otherwise, watch for a strong thunderstorm in the morning, cloudy and humid

RealFeel®88°

RealFeel Shade™86°

Max UV Index2 (Low)

WindSW 10 mph

Mon 6/30

80° /59°
2%
Sunny and less humid

RealFeel®84°

RealFeel Shade™78°

Max UV Index10 (Very High)

WindWNW 10 mph

Tue 7/1

79° /62°
0%
Partial sunshine

RealFeel®88°

RealFeel Shade™80°

Max UV Index7 (High)

WindWSW 2 mph

Wed 7/2

82° /63°
11%
Humid with intervals of clouds and sunshine

RealFeel®86°

RealFeel Shade™82°

Max UV Index5 (Moderate)

WindSE 9 mph

Thu 7/3

81° /65°
75%
Periods of rain and a thunderstorm in the morning; humid with considerable cloudiness

RealFeel®90°

RealFeel Shade™85°

Max UV Index5 (Moderate)

WindSSE 5 mph

Fri 7/4

85° /64°
3%
Humid with plenty of sunshine

RealFeel®94°

RealFeel Shade™90°

Max UV Index10 (Very High)

WindSSE 9 mph

Sat 7/5

83° /62°
25%
Humid with times of clouds and sun

RealFeel®91°

RealFeel Shade™87°

Max UV Index5 (Moderate)

WindNNE 10 mph

Sun 7/6

76° /57°
20%
Plenty of sunshine

RealFeel®82°

RealFeel Shade™74°

Max UV Index10 (Very High)

WindE 6 mph

Mon 7/7

77° /58°
20%
Sunshine and a few clouds

RealFeel®82°

RealFeel Shade™74°

Max UV Index10 (Very High)

WindSE 6 mph

Tue 7/8

78° /65°
43%
Clouds and sun with a shower in places

RealFeel®80°

RealFeel Shade™78°

Max UV Index4 (Moderate)

WindSSE 8 mph

Wed 7/9

83° /66°
25%
Humid with sunshine and a few clouds

RealFeel®92°

RealFeel Shade™89°

Max UV Index10 (Very High)

WindSSW 12 mph

Thu 7/10

85° /64°
10%
Mostly sunny and less humid

RealFeel®90°

RealFeel Shade™84°

Max UV Index10 (Very High)

WindESE 7 mph

Fri 7/11

86° /67°
25%
Mostly cloudy and humid

RealFeel®92°

RealFeel Shade™91°

Max UV Index10 (Very High)

WindSW 9 mph

Sat 7/12

85° /66°
65%
A couple of morning showers and a thunderstorm; otherwise, humid with more clouds than sun

RealFeel®92°

RealFeel Shade™86°

Max UV Index5 (Moderate)

WindNNW 4 mph

Sun 7/13

79° /64°
10%
Sunny much of the time and humid

RealFeel®86°

RealFeel Shade™79°

Max UV Index10 (Very High)

WindNW 5 mph

Mon 7/14

79° /66°
65%
Cloudy and humid; a little rain in the morning followed by a couple of showers and a thunderstorm in the afternoon

RealFeel®80°

RealFeel Shade™80°

Max UV Index3 (Moderate)

WindSE 7 mph

Tue 7/15

80° /66°
55%
Cloudy and humid with a bit of rain

RealFeel®82°

RealFeel Shade™82°

Max UV Index3 (Moderate)

WindNE 6 mph

Wed 7/16

78° /65°
25%
Mostly cloudy and humid

RealFeel®79°

RealFeel Shade™79°

Max UV Index4 (Moderate)

WindENE 8 mph

Thu 7/17

78° /66°
70%
Cloudy and humid; a couple of showers in the morning followed by showers and thunderstorms in the afternoon

RealFeel®81°

RealFeel Shade™81°

Max UV Index2 (Low)

WindE 8 mph

Fri 7/18

79° /65°
25%
Humid with clouds and sun

RealFeel®87°

RealFeel Shade™83°

Max UV Index10 (Very High)

WindNE 5 mph

Sat 7/19

80° /66°
65%
Turning cloudy and humid; a couple of showers and a thunderstorm in the afternoon

RealFeel®88°

RealFeel Shade™84°

Max UV Index10 (Very High)

WindSSE 6 mph

Sun 7/20

85° /67°
65%
Uncomfortably humid with periods of clouds and sunshine; a couple of afternoon showers and a thunderstorm

RealFeel®95°

RealFeel Shade™92°

Max UV Index9 (Very High)

WindWSW 4 mph

Mon 7/21

84° /66°
60%
Mostly cloudy and humid; a bit of afternoon rain

RealFeel®92°

RealFeel Shade™87°

Max UV Index10 (Very High)

WindNW 6 mph

Tue 7/22

80° /64°
20%
Mostly sunny and humid

RealFeel®88°

RealFeel Shade™80°

Max UV Index10 (Very High)

WindNW 5 mph

Wed 7/23

79° /66°
25%
Humid with sunshine and some clouds

RealFeel®87°

RealFeel Shade™81°

Max UV Index9 (Very High)

WindS 4 mph

Thu 7/24

80° /65°
25%
Humid with times of clouds and sun

RealFeel®83°

RealFeel Shade™81°

Max UV Index7 (High)

WindNNE 6 mph

Fri 7/25

79° /61°
10%
Mostly sunny

RealFeel®84°

RealFeel Shade™76°

Max UV Index9 (Very High)

WindE 7 mph

Sat 7/26

78° /60°
25%
Mostly cloudy

RealFeel®80°

RealFeel Shade™76°

Max UV Index4 (Moderate)

WindSSE 6 mph

Sun 7/27

78° /63°
5%
Sunny

RealFeel®85°

RealFeel Shade™77°

Max UV Index9 (Very High)

WindSE 4 mph

Mon 7/28

81° /65°
25%
Clouds and sun

RealFeel®84°

RealFeel Shade™82°

Max UV Index3 (Moderate)

WindS 4 mph

Tue 7/29

83° /66°
25%
Turning cloudy and humid

RealFeel®91°

RealFeel Shade™88°

Max UV Index9 (Very High)

WindW 4 mph

Wed 7/30

85° /67°
20%
Humid with some sun

RealFeel®90°

RealFeel Shade™87°

Max UV Index6 (High)

WindSSW 5 mph

Thu 7/31

86° /67°
20%
Humid with sun and some clouds

RealFeel®89°

RealFeel Shade™89°

Max UV Index9 (Very High)

WindSSW 10 mph

Fri 8/1

86° /66°
20%
Partly sunny

RealFeel®89°

RealFeel Shade™84°

Max UV Index9 (Very High)

WindNNW 8 mph

Sat 8/2

79° /62°
25%
Mainly cloudy

RealFeel®80°

RealFeel Shade™77°

Max UV Index4 (Moderate)

WindNE 6 mph

Sun 8/3

78° /63°
65%
Intervals of clouds and sunshine with a couple of showers in the afternoon

RealFeel®77°

RealFeel Shade™75°

Max UV Index6 (High)

WindESE 10 mph

Mon 8/4

81° /66°
25%
Partly sunny and humid

RealFeel®89°

RealFeel Shade™88°

Max UV Index9 (Very High)

WindNE 2 mph

Tue 8/5

81° /62°
25%
Humid with times of clouds and sun

RealFeel®81°

RealFeel Shade™80°

Max UV Index6 (High)

WindSSW 9 mph

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World North America United States Iowa Sumner

Weather Near Sumner:

  • Cedar Rapids, IA
  • Iowa City, IA
  • Waterloo, IA
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