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Decatur, IL

77°F
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Decatur

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Decatur, IL Weather
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Winter Center
Today Hourly

Daily

 Radar MinuteCast Monthly Air Quality Health & Activities

June 15 - July 29

Sun 6/15

82° /67°
12%
Partly cloudy and humid

RealFeel®67°

Cloud Cover38%

WindENE 6 mph

Wind Gusts12 mph

Mon 6/16

82° /69°
41%
Humid with periods of clouds and sunshine; an afternoon thunderstorm in spots

RealFeel®88°

RealFeel Shade™83°

Max UV Index7 (High)

WindESE 7 mph

Tue 6/17

89° /71°
3%
Warm and humid with intervals of clouds and sunshine

RealFeel®97°

RealFeel Shade™91°

Max UV Index8 (Very High)

WindSW 8 mph

Wed 6/18

82° /66°
87%
Windy and not as warm with some sun, then clouds; heavy p.m. t-storms; storms can bring flooding downpours, hail, damaging wind gusts, and an isolated tornado

RealFeel®89°

RealFeel Shade™83°

Max UV Index9 (Very High)

WindSW 15 mph

Thu 6/19

85° /67°
25%
Humid with decreasing clouds

RealFeel®92°

RealFeel Shade™84°

Max UV Index10 (Very High)

WindNW 8 mph

Fri 6/20

85° /72°
1%
Humid with sunshine

RealFeel®94°

RealFeel Shade™86°

Max UV Index11 (Extreme)

WindSSW 7 mph

Sat 6/21

90° /74°
2%
Hot and humid with plenty of sunshine

RealFeel®98°

RealFeel Shade™94°

Max UV Index11 (Extreme)

WindSSW 12 mph

Sun 6/22

92° /75°
1%
Plenty of sunshine, hot and humid

RealFeel®102°

RealFeel Shade™97°

Max UV Index11 (Extreme)

WindSSW 9 mph

Mon 6/23

91° /73°
16%
Mostly sunny, hot and humid

RealFeel®96°

RealFeel Shade™92°

Max UV Index11 (Extreme)

WindSW 12 mph

Tue 6/24

88° /72°
0%
Uncomfortably humid with sun through high clouds

RealFeel®100°

RealFeel Shade™99°

Max UV Index5 (Moderate)

WindNW 4 mph

Wed 6/25

85° /68°
2%
Mostly sunny and less humid

RealFeel®91°

RealFeel Shade™85°

Max UV Index11 (Extreme)

WindNE 7 mph

Thu 6/26

84° /71°
16%
Cloudy

RealFeel®87°

RealFeel Shade™86°

Max UV Index4 (Moderate)

WindSE 6 mph

Fri 6/27

85° /69°
55%
Mostly cloudy and humid with a shower

RealFeel®90°

RealFeel Shade™85°

Max UV Index6 (High)

WindSSW 13 mph

Sat 6/28

84° /66°
5%
Brilliant sunshine and humid

RealFeel®95°

RealFeel Shade™89°

Max UV Index11 (Extreme)

WindSW 7 mph

Sun 6/29

87° /70°
20%
Seasonably warm and very humid with plenty of sunshine

RealFeel®97°

RealFeel Shade™92°

Max UV Index11 (Extreme)

WindSSW 8 mph

Mon 6/30

88° /71°
10%
Sunny, warm and humid

RealFeel®97°

RealFeel Shade™92°

Max UV Index11 (Extreme)

WindSW 8 mph

Tue 7/1

89° /71°
10%
Warm and humid with brilliant sunshine

RealFeel®97°

RealFeel Shade™91°

Max UV Index11 (Extreme)

WindSSW 8 mph

Wed 7/2

88° /70°
10%
Sunny, humid and remaining warm

RealFeel®97°

RealFeel Shade™92°

Max UV Index11 (Extreme)

WindSW 7 mph

Thu 7/3

88° /71°
65%
Cloudy and uncomfortably humid; a couple of showers and a thunderstorm in the afternoon

RealFeel®96°

RealFeel Shade™95°

Max UV Index4 (Moderate)

WindSSW 6 mph

Fri 7/4

87° /72°
5%
Mostly sunny and uncomfortably humid

RealFeel®97°

RealFeel Shade™92°

Max UV Index11 (Extreme)

WindSSW 7 mph

Sat 7/5

88° /71°
20%
Mostly sunny and humid

RealFeel®98°

RealFeel Shade™94°

Max UV Index11 (Extreme)

WindSW 5 mph

Sun 7/6

88° /71°
10%
Uncomfortably humid with sunshine

RealFeel®98°

RealFeel Shade™92°

Max UV Index11 (Extreme)

WindS 7 mph

Mon 7/7

89° /72°
10%
Mostly sunny, warm and humid

RealFeel®98°

RealFeel Shade™94°

Max UV Index11 (Extreme)

WindS 7 mph

Tue 7/8

89° /72°
5%
Sunny and warm

RealFeel®96°

RealFeel Shade™91°

Max UV Index11 (Extreme)

WindSSW 7 mph

Wed 7/9

88° /71°
65%
Humid and remaining warm with variable cloudiness; a couple of showers and a thunderstorm in the afternoon

RealFeel®92°

RealFeel Shade™92°

Max UV Index10 (Very High)

WindENE 8 mph

Thu 7/10

87° /70°
25%
Mostly cloudy and humid

RealFeel®96°

RealFeel Shade™95°

Max UV Index5 (Moderate)

WindESE 4 mph

Fri 7/11

87° /72°
55%
A passing morning shower; otherwise, clouds giving way to some sun and very humid

RealFeel®96°

RealFeel Shade™93°

Max UV Index11 (Extreme)

WindS 10 mph

Sat 7/12

88° /71°
10%
Mostly sunny and humid

RealFeel®94°

RealFeel Shade™90°

Max UV Index11 (Extreme)

WindSSW 13 mph

Sun 7/13

89° /72°
25%
Clouds to start, then sunshine returns, warm and humid

RealFeel®100°

RealFeel Shade™96°

Max UV Index11 (Extreme)

WindN 4 mph

Mon 7/14

88° /72°
20%
Mostly sunny

RealFeel®95°

RealFeel Shade™87°

Max UV Index11 (Extreme)

WindSSW 8 mph

Tue 7/15

88° /71°
20%
Mostly sunny and warm

RealFeel®93°

RealFeel Shade™87°

Max UV Index11 (Extreme)

WindSW 9 mph

Wed 7/16

89° /71°
5%
Sunshine, warm and humid

RealFeel®97°

RealFeel Shade™92°

Max UV Index10 (Very High)

WindNNE 8 mph

Thu 7/17

87° /70°
10%
Mostly sunny and less humid

RealFeel®92°

RealFeel Shade™85°

Max UV Index10 (Very High)

WindENE 6 mph

Fri 7/18

86° /70°
5%
Plenty of sun

RealFeel®90°

RealFeel Shade™83°

Max UV Index10 (Very High)

WindESE 8 mph

Sat 7/19

84° /69°
65%
Cloudy with a couple of showers and a thunderstorm in the afternoon

RealFeel®86°

RealFeel Shade™86°

Max UV Index3 (Moderate)

WindSSW 8 mph

Sun 7/20

81° /66°
10%
Sunny

RealFeel®87°

RealFeel Shade™78°

Max UV Index10 (Very High)

WindNNE 8 mph

Mon 7/21

80° /65°
10%
Mostly sunny

RealFeel®87°

RealFeel Shade™78°

Max UV Index10 (Very High)

WindSW 5 mph

Tue 7/22

82° /63°
10%
Mostly sunny

RealFeel®84°

RealFeel Shade™78°

Max UV Index10 (Very High)

WindWNW 12 mph

Wed 7/23

79° /63°
25%
Increasing cloudiness

RealFeel®80°

RealFeel Shade™75°

Max UV Index9 (Very High)

WindWNW 10 mph

Thu 7/24

79° /62°
20%
Sunshine and a few clouds

RealFeel®86°

RealFeel Shade™77°

Max UV Index10 (Very High)

WindNW 5 mph

Fri 7/25

80° /63°
25%
Clouds to start, then sunshine returns

RealFeel®85°

RealFeel Shade™77°

Max UV Index10 (Very High)

WindESE 6 mph

Sat 7/26

81° /67°
20%
Periods of clouds and sunshine

RealFeel®82°

RealFeel Shade™77°

Max UV Index9 (Very High)

WindESE 9 mph

Sun 7/27

81° /66°
25%
Intervals of clouds and sunshine

RealFeel®89°

RealFeel Shade™81°

Max UV Index10 (Very High)

WindSE 5 mph

Mon 7/28

80° /62°
0%
Partly sunny and less humid

RealFeel®85°

RealFeel Shade™79°

Max UV Index10 (Very High)

WindENE 5 mph

Tue 7/29

80° /63°
0%
Mostly sunny

RealFeel®84°

RealFeel Shade™80°

Max UV Index10 (Very High)

WindENE 7 mph

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World North America United States Illinois Decatur

Weather Near Decatur:

  • Champaign, IL
  • Peoria, IL
  • Springfield, IL
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