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New Castle, CO

67°F
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New Castle, CO Weather
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Winter Center
Today Hourly

Daily

 Radar MinuteCast Monthly Air Quality Health & Activities

July 16 - August 29

Wed 7/16

92° /59°
55%
Intervals of clouds and sunshine with a heavy thunderstorm this afternoon; watch for flash flooding

RealFeel®96°

RealFeel Shade™89°

Max UV Index12 (Extreme)

WindWSW 9 mph

Thu 7/17

92° /61°
40%
Mostly cloudy with a thunderstorm in spots in the afternoon; dry thunderstorms can spark new wildfires

RealFeel®93°

RealFeel Shade™89°

Max UV Index9 (Very High)

WindSW 7 mph

Fri 7/18

88° /59°
40%
Some sun, then turning cloudy with a thunderstorm in spots in the afternoon

RealFeel®92°

RealFeel Shade™85°

Max UV Index11 (Extreme)

WindWSW 8 mph

Sat 7/19

88° /57°
14%
Mostly sunny

RealFeel®92°

RealFeel Shade™84°

Max UV Index11 (Extreme)

WindW 8 mph

Sun 7/20

86° /60°
60%
A couple of morning showers; otherwise, partly sunny

RealFeel®92°

RealFeel Shade™83°

Max UV Index11 (Extreme)

WindW 7 mph

Mon 7/21

89° /56°
1%
Mostly sunny

RealFeel®96°

RealFeel Shade™87°

Max UV Index11 (Extreme)

WindWSW 6 mph

Tue 7/22

91° /58°
0%
Plenty of sunshine

RealFeel®95°

RealFeel Shade™89°

Max UV Index11 (Extreme)

WindW 5 mph

Wed 7/23

92° /57°
0%
Sunshine

RealFeel®97°

RealFeel Shade™90°

Max UV Index11 (Extreme)

WindW 2 mph

Thu 7/24

95° /57°
1%
Mainly cloudy and very warm

RealFeel®95°

RealFeel Shade™93°

Max UV Index8 (Very High)

WindS 4 mph

Fri 7/25

96° /58°
59%
Very warm with more clouds than sun; a couple of afternoon thundershowers

RealFeel®98°

RealFeel Shade™95°

Max UV Index11 (Extreme)

WindN 2 mph

Sat 7/26

95° /58°
70%
Cloudy and remaining very warm; occasional afternoon rain

RealFeel®94°

RealFeel Shade™91°

Max UV Index6 (High)

WindNW 2 mph

Sun 7/27

91° /59°
58%
Mostly cloudy with thundershowers

RealFeel®90°

RealFeel Shade™87°

Max UV Index6 (High)

WindW 5 mph

Mon 7/28

92° /60°
41%
Variable cloudiness with a thundershower in spots in the afternoon

RealFeel®94°

RealFeel Shade™89°

Max UV Index11 (Extreme)

WindW 5 mph

Tue 7/29

89° /56°
25%
Mostly cloudy

RealFeel®91°

RealFeel Shade™87°

Max UV Index3 (Moderate)

WindS 4 mph

Wed 7/30

85° /53°
20%
Partly sunny

RealFeel®91°

RealFeel Shade™83°

Max UV Index11 (Extreme)

WindSSE 4 mph

Thu 7/31

87° /54°
10%
Mostly sunny

RealFeel®91°

RealFeel Shade™84°

Max UV Index11 (Extreme)

WindSSE 4 mph

Fri 8/1

88° /53°
10%
Sunny

RealFeel®93°

RealFeel Shade™86°

Max UV Index11 (Extreme)

WindSSE 4 mph

Sat 8/2

88° /53°
5%
Sunshine

RealFeel®92°

RealFeel Shade™86°

Max UV Index10 (Very High)

WindSSE 5 mph

Sun 8/3

89° /56°
10%
Sunshine

RealFeel®93°

RealFeel Shade™87°

Max UV Index10 (Very High)

WindSSE 4 mph

Mon 8/4

89° /55°
20%
Mostly sunny

RealFeel®94°

RealFeel Shade™88°

Max UV Index10 (Very High)

WindSSE 2 mph

Tue 8/5

88° /57°
10%
Sunshine and a few clouds

RealFeel®93°

RealFeel Shade™86°

Max UV Index10 (Very High)

WindS 2 mph

Wed 8/6

85° /55°
20%
Partly sunny

RealFeel®91°

RealFeel Shade™83°

Max UV Index10 (Very High)

WindS 2 mph

Thu 8/7

85° /56°
25%
Cloudy

RealFeel®86°

RealFeel Shade™84°

Max UV Index3 (Moderate)

WindSSE 2 mph

Fri 8/8

83° /54°
25%
Mostly cloudy

RealFeel®85°

RealFeel Shade™82°

Max UV Index3 (Moderate)

WindSSE 2 mph

Sat 8/9

84° /56°
25%
Cloudy

RealFeel®84°

RealFeel Shade™84°

Max UV Index3 (Moderate)

WindS 2 mph

Sun 8/10

83° /53°
25%
Clouds and sun

RealFeel®86°

RealFeel Shade™81°

Max UV Index3 (Moderate)

WindSSE 4 mph

Mon 8/11

83° /53°
10%
Sunny

RealFeel®89°

RealFeel Shade™81°

Max UV Index10 (Very High)

WindSSE 4 mph

Tue 8/12

84° /54°
10%
Sunny

RealFeel®89°

RealFeel Shade™81°

Max UV Index10 (Very High)

WindSSE 5 mph

Wed 8/13

85° /54°
10%
Mostly sunny

RealFeel®90°

RealFeel Shade™83°

Max UV Index10 (Very High)

WindSSE 4 mph

Thu 8/14

86° /53°
20%
Mostly sunny

RealFeel®91°

RealFeel Shade™84°

Max UV Index10 (Very High)

WindSSW 1 mph

Fri 8/15

87° /50°
5%
Plenty of sun

RealFeel®92°

RealFeel Shade™86°

Max UV Index9 (Very High)

WindNNE 2 mph

Sat 8/16

88° /52°
10%
Mostly sunny

RealFeel®91°

RealFeel Shade™86°

Max UV Index9 (Very High)

WindSSE 2 mph

Sun 8/17

88° /55°
25%
Increasing cloudiness

RealFeel®88°

RealFeel Shade™87°

Max UV Index8 (Very High)

WindS 1 mph

Mon 8/18

87° /55°
25%
After a cloudy start, sun returns

RealFeel®91°

RealFeel Shade™85°

Max UV Index9 (Very High)

WindSSE 4 mph

Tue 8/19

84° /54°
20%
Partly sunny

RealFeel®89°

RealFeel Shade™82°

Max UV Index9 (Very High)

WindSSE 4 mph

Wed 8/20

85° /55°
25%
Mostly cloudy

RealFeel®87°

RealFeel Shade™84°

Max UV Index2 (Low)

WindS 2 mph

Thu 8/21

85° /54°
25%
Mostly cloudy

RealFeel®87°

RealFeel Shade™83°

Max UV Index2 (Low)

WindS 1 mph

Fri 8/22

81° /51°
20%
Partial sunshine

RealFeel®86°

RealFeel Shade™79°

Max UV Index9 (Very High)

WindSSE 4 mph

Sat 8/23

84° /52°
20%
Plenty of sun

RealFeel®88°

RealFeel Shade™82°

Max UV Index9 (Very High)

WindESE 2 mph

Sun 8/24

87° /54°
5%
Plenty of sun

RealFeel®90°

RealFeel Shade™85°

Max UV Index9 (Very High)

WindSSE 4 mph

Mon 8/25

87° /54°
5%
Sunshine

RealFeel®90°

RealFeel Shade™85°

Max UV Index8 (Very High)

WindE 4 mph

Tue 8/26

86° /53°
20%
More sun than clouds

RealFeel®90°

RealFeel Shade™85°

Max UV Index8 (Very High)

WindSSE 2 mph

Wed 8/27

85° /53°
10%
Mostly sunny

RealFeel®89°

RealFeel Shade™84°

Max UV Index8 (Very High)

WindESE 2 mph

Thu 8/28

86° /52°
10%
Mostly sunny

RealFeel®89°

RealFeel Shade™84°

Max UV Index8 (Very High)

WindSSE 4 mph

Fri 8/29

81° /46°
43%
Partly sunny with a shower in spots in the afternoon

RealFeel®83°

RealFeel Shade™78°

Max UV Index8 (Very High)

WindWSW 5 mph

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World North America United States Colorado New Castle

Weather Near New Castle:

  • Boulder, CO
  • Denver, CO
  • Fort Collins, CO
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