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Hurricane Erin to grow, threatens US coast this week. Click for details. Chevron right

Ajax, SD

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Ajax, SD Weather
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Winter Center

Today Hourly

Daily

Radar MinuteCast® Monthly Air Quality Health & Activities

August 17 - September 30

Sun 8/17

90° /64°
55%
Turning cloudy; a shower in spots late this morning followed by a thunderstorm in spots this afternoon; thunderstorms can bring hail and damaging winds

RealFeel®96°

RealFeel Shade™87°

Max UV Index7.0 (High)

WindN 5 mph

Mon 8/18

92° /62°
55%
Partly sunny and very warm, becoming breezy in the afternoon with a thunderstorm; thunderstorms can bring hail and damaging winds

RealFeel®93°

RealFeel Shade™88°

Max UV Index8.0 (Very High)

WindE 12 mph

Tue 8/19

94° /61°
55%
Mostly sunny and very warm; an afternoon thunderstorm

RealFeel®95°

RealFeel Shade™91°

Max UV Index8.0 (Very High)

WindENE 8 mph

Wed 8/20

102° /68°
0%
Sizzling sunshine and very hot; danger of dehydration and heatstroke if outside for extended periods of time

RealFeel®102°

RealFeel Shade™99°

Max UV Index7.0 (High)

WindSSE 9 mph

Thu 8/21

92° /60°
1%
Very warm with hazy sunshine; breezy in the afternoon

RealFeel®93°

RealFeel Shade™89°

Max UV Index7.0 (High)

WindN 12 mph

Fri 8/22

80° /56°
55%
Not as warm with intervals of clouds and sunshine; a thunderstorm on the prowl in the afternoon

RealFeel®86°

RealFeel Shade™77°

Max UV Index7.0 (High)

WindE 4 mph

Sat 8/23

76° /54°
55%
A thunderstorm on the prowl in the morning; otherwise, times of clouds and sun

RealFeel®82°

RealFeel Shade™75°

Max UV Index5.0 (Moderate)

WindNNE 2 mph

Sun 8/24

80° /58°
1%
Turning cloudy

RealFeel®85°

RealFeel Shade™78°

Max UV Index7.0 (High)

WindE 5 mph

Mon 8/25

81° /56°
65%
A couple of showers in the morning; otherwise, mostly cloudy

RealFeel®85°

RealFeel Shade™79°

Max UV Index5.0 (Moderate)

WindESE 6 mph

Tue 8/26

84° /57°
6%
Mostly cloudy

RealFeel®84°

RealFeel Shade™82°

Max UV Index4.0 (Moderate)

WindS 10 mph

Wed 8/27

83° /60°
61%
Cloudy with a couple of showers and a thunderstorm in the afternoon

RealFeel®83°

RealFeel Shade™82°

Max UV Index3.0 (Moderate)

WindSE 5 mph

Thu 8/28

88° /59°
66%
A couple of showers and a thunderstorm in the morning; otherwise, partly sunny

RealFeel®90°

RealFeel Shade™86°

Max UV Index6.0 (High)

WindN 4 mph

Fri 8/29

85° /58°
1%
Mostly sunny

RealFeel®88°

RealFeel Shade™83°

Max UV Index7.0 (High)

WindNW 7 mph

Sat 8/30

82° /53°
5%
Plenty of sunshine

RealFeel®87°

RealFeel Shade™80°

Max UV Index6.0 (High)

WindSW 2 mph

Sun 8/31

85° /58°
10%
Mostly sunny

RealFeel®88°

RealFeel Shade™82°

Max UV Index6.0 (High)

WindNW 5 mph

Mon 9/1

76° /57°
55%
Cloudy and not as warm; a little rain in the morning followed by a shower in spots in the afternoon

RealFeel®75°

RealFeel Shade™75°

Max UV Index2.0 (Low)

WindE 7 mph

Tue 9/2

74° /58°
5%
Sunny

RealFeel®79°

RealFeel Shade™72°

Max UV Index6.0 (High)

WindWSW 6 mph

Wed 9/3

84° /58°
5%
Warmer with sunshine

RealFeel®87°

RealFeel Shade™82°

Max UV Index6.0 (High)

WindWSW 4 mph

Thu 9/4

84° /57°
10%
Mostly sunny

RealFeel®88°

RealFeel Shade™83°

Max UV Index6.0 (High)

WindSSW 4 mph

Fri 9/5

83° /58°
5%
Plenty of sunshine

RealFeel®86°

RealFeel Shade™81°

Max UV Index6.0 (High)

WindSW 5 mph

Sat 9/6

85° /58°
10%
Mostly sunny

RealFeel®86°

RealFeel Shade™83°

Max UV Index6.0 (High)

WindW 7 mph

Sun 9/7

83° /57°
5%
Plenty of sunshine

RealFeel®87°

RealFeel Shade™81°

Max UV Index6.0 (High)

WindNE 4 mph

Mon 9/8

83° /58°
5%
Plenty of sunshine

RealFeel®83°

RealFeel Shade™80°

Max UV Index6.0 (High)

WindSSW 9 mph

Tue 9/9

85° /56°
20%
Plenty of sunshine

RealFeel®88°

RealFeel Shade™83°

Max UV Index5.0 (Moderate)

WindNE 5 mph

Wed 9/10

81° /57°
5%
Plenty of sunshine

RealFeel®83°

RealFeel Shade™78°

Max UV Index5.0 (Moderate)

WindS 7 mph

Thu 9/11

82° /57°
25%
Turning out cloudy

RealFeel®81°

RealFeel Shade™81°

Max UV Index4.0 (Moderate)

WindS 4 mph

Fri 9/12

73° /56°
6%
Intervals of clouds and sunshine

RealFeel®72°

RealFeel Shade™69°

Max UV Index3.0 (Moderate)

WindESE 12 mph

Sat 9/13

83° /49°
1%
Mostly sunny and warmer

RealFeel®84°

RealFeel Shade™80°

Max UV Index5.0 (Moderate)

WindS 6 mph

Sun 9/14

81° /50°
2%
Partly sunny

RealFeel®80°

RealFeel Shade™78°

Max UV Index5.0 (Moderate)

WindWSW 9 mph

Mon 9/15

70° /50°
1%
Sunshine

RealFeel®70°

RealFeel Shade™67°

Max UV Index5.0 (Moderate)

WindSE 7 mph

Tue 9/16

81° /50°
0%
Abundant sunshine and warmer

RealFeel®83°

RealFeel Shade™79°

Max UV Index5.0 (Moderate)

WindSSE 5 mph

Wed 9/17

77° /51°
1%
Mostly sunny

RealFeel®78°

RealFeel Shade™75°

Max UV Index5.0 (Moderate)

WindENE 6 mph

Thu 9/18

78° /52°
3%
Partly sunny

RealFeel®76°

RealFeel Shade™74°

Max UV Index5.0 (Moderate)

WindSE 12 mph

Fri 9/19

74° /51°
2%
Sunshine and a few clouds

RealFeel®78°

RealFeel Shade™73°

Max UV Index5.0 (Moderate)

WindSSE 4 mph

Sat 9/20

79° /52°
1%
Mostly sunny

RealFeel®82°

RealFeel Shade™77°

Max UV Index5.0 (Moderate)

WindNW 6 mph

Sun 9/21

79° /53°
1%
Mostly sunny

RealFeel®81°

RealFeel Shade™77°

Max UV Index5.0 (Moderate)

WindESE 5 mph

Mon 9/22

65° /42°
15%
Intervals of clouds and sunshine

RealFeel®62°

RealFeel Shade™60°

Max UV Index5.0 (Moderate)

WindESE 15 mph

Tue 9/23

78° /44°
5%
Warmer with times of clouds and sun

RealFeel®79°

RealFeel Shade™76°

Max UV Index5.0 (Moderate)

WindSW 8 mph

Wed 9/24

66° /36°
10%
Partly sunny and not as warm

RealFeel®69°

RealFeel Shade™63°

Max UV Index5.0 (Moderate)

WindENE 6 mph

Thu 9/25

65° /35°
56%
Mostly cloudy; a morning shower in spots followed by a little rain in the afternoon

RealFeel®62°

RealFeel Shade™60°

Max UV Index4.0 (Moderate)

WindENE 12 mph

Fri 9/26

80° /49°
2%
Sunny to partly cloudy

RealFeel®80°

RealFeel Shade™77°

Max UV Index4.0 (Moderate)

WindNNW 7 mph

Sat 9/27

79° /53°
1%
Plenty of sunshine

RealFeel®78°

RealFeel Shade™75°

Max UV Index4.0 (Moderate)

WindN 8 mph

Sun 9/28

80° /47°
1%
Abundant sunshine and warm

RealFeel®79°

RealFeel Shade™77°

Max UV Index4.0 (Moderate)

WindS 12 mph

Mon 9/29

70° /46°
3%
Mostly sunny

RealFeel®68°

RealFeel Shade™66°

Max UV Index4.0 (Moderate)

WindSSE 10 mph

Tue 9/30

72° /49°
3%
Sunny

RealFeel®72°

RealFeel Shade™69°

Max UV Index4.0 (Moderate)

WindSSE 8 mph

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Weather Near Ajax:

  • Rapid City, SD
  • Sheridan, WY
  • Spearfish, SD
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More
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