Weather Forecast for Rapid City
South Dakota, United States of America
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Current Weather - Rapid City: 18°C
Current Weather - Rapid City: 18°C
South Dakota, United States of America
Clear
Feels like 17°C
Wind
6 km/h WSW
Humidity
68%
Pressure
1021 mb
UV Index
0
Visibility
10 km
Sunny
Sunday, August 16, 2026
High
31°C
Low
16°C
Rain Chance
17%
Hourly Forecast
22°C
24°C
25°C
27°C
28°C
30°C
31°C
31°C
31°C
30°C
22°C
23°C
19°C
19°C
19°C
19°C
Day Statistics
Maximum Wind
40 km/h
Humidity
56%
Precipitation
0 mm
UV Index
8
Visibility
10 km
Rain Chance
17%
Snow Chance
0%
Sun & Moon
Sunrise
05:57 AM
Sunset
07:56 PM
Moonrise
10:39 AM
Moonset
09:34 PM
Moon Phase
Waxing Crescent
Moon Illumination
18%
Air Quality
PM2.5
4.5
μg/m³
PM10
4.7
μg/m³
NO₂
5.7
μg/m³
O₃
60.5
μg/m³
SO₂
0.3
μg/m³
CO
142
μg/m³
Sunny
Monday, August 17, 2026
High
33°C
Low
18°C
Rain Chance
57%
Hourly Forecast
18°C
18°C
19°C
19°C
19°C
19°C
19°C
20°C
25°C
27°C
29°C
30°C
32°C
32°C
32°C
33°C
33°C
27°C
22°C
22°C
20°C
20°C
20°C
21°C
Day Statistics
Maximum Wind
28 km/h
Humidity
51%
Precipitation
3 mm
UV Index
8
Visibility
10 km
Rain Chance
57%
Snow Chance
0%
Sun & Moon
Sunrise
05:59 AM
Sunset
07:54 PM
Moonrise
11:54 AM
Moonset
09:58 PM
Moon Phase
Waxing Crescent
Moon Illumination
27%
Air Quality
PM2.5
3.7
μg/m³
PM10
4
μg/m³
NO₂
4.6
μg/m³
O₃
68.8
μg/m³
SO₂
0.3
μg/m³
CO
124.6
μg/m³
Sunny
Tuesday, August 18, 2026
High
30°C
Low
17°C
Rain Chance
57%
Hourly Forecast
21°C
20°C
20°C
19°C
19°C
19°C
19°C
20°C
22°C
23°C
24°C
25°C
28°C
30°C
28°C
28°C
26°C
24°C
25°C
17°C
18°C
18°C
19°C
19°C
Day Statistics
Maximum Wind
17 km/h
Humidity
54%
Precipitation
3 mm
UV Index
7
Visibility
10 km
Rain Chance
57%
Snow Chance
0%
Sun & Moon
Sunrise
06:00 AM
Sunset
07:53 PM
Moonrise
01:08 PM
Moonset
10:26 PM
Moon Phase
First Quarter
Moon Illumination
37%
Air Quality
PM2.5
7.5
μg/m³
PM10
8.4
μg/m³
NO₂
3.9
μg/m³
O₃
78.2
μg/m³
SO₂
0.4
μg/m³
CO
123.1
μg/m³
Sunny
Wednesday, August 19, 2026
High
28°C
Low
15°C
Rain Chance
36%
Hourly Forecast
18°C
17°C
16°C
17°C
15°C
15°C
16°C
15°C
17°C
24°C
19°C
19°C
28°C
28°C
27°C
27°C
25°C
24°C
22°C
21°C
20°C
19°C
19°C
18°C
Day Statistics
Maximum Wind
13 km/h
Humidity
57%
Precipitation
1 mm
UV Index
7
Visibility
10 km
Rain Chance
36%
Snow Chance
0%
Sun & Moon
Sunrise
06:01 AM
Sunset
07:51 PM
Moonrise
02:19 PM
Moonset
11:00 PM
Moon Phase
First Quarter
Moon Illumination
48%
Air Quality
PM2.5
13.2
μg/m³
PM10
13.3
μg/m³
NO₂
4.9
μg/m³
O₃
69.1
μg/m³
SO₂
0.4
μg/m³
CO
207.3
μg/m³
Sunny
Thursday, August 20, 2026
High
31°C
Low
16°C
Rain Chance
1%
Hourly Forecast
18°C
17°C
17°C
17°C
17°C
17°C
16°C
20°C
23°C
26°C
27°C
29°C
30°C
31°C
31°C
31°C
31°C
30°C
30°C
28°C
25°C
23°C
22°C
21°C
Day Statistics
Maximum Wind
22 km/h
Humidity
34%
Precipitation
0 mm
UV Index
8
Visibility
10 km
Rain Chance
1%
Snow Chance
0%
Sun & Moon
Sunrise
06:02 AM
Sunset
07:50 PM
Moonrise
03:26 PM
Moonset
11:41 PM
Moon Phase
First Quarter
Moon Illumination
58%
Sunny
Friday, August 21, 2026
High
35°C
Low
19°C
Rain Chance
1%
Hourly Forecast
20°C
20°C
20°C
19°C
19°C
19°C
19°C
22°C
26°C
29°C
31°C
32°C
34°C
34°C
35°C
35°C
35°C
35°C
34°C
31°C
28°C
24°C
24°C
23°C
Day Statistics
Maximum Wind
16 km/h
Humidity
26%
Precipitation
0 mm
UV Index
9
Visibility
10 km
Rain Chance
1%
Snow Chance
0%
Sun & Moon
Sunrise
06:03 AM
Sunset
07:48 PM
Moonrise
04:25 PM
Moonset
Does not set today
Moon Phase
First Quarter
Moon Illumination
69%
Sunny
Saturday, August 22, 2026
High
40°C
Low
21°C
Rain Chance
0%
Hourly Forecast
22°C
22°C
21°C
21°C
21°C
21°C
21°C
25°C
29°C
34°C
35°C
37°C
38°C
39°C
40°C
40°C
40°C
39°C
39°C
36°C
32°C
28°C
28°C
28°C
Day Statistics
Maximum Wind
25 km/h
Humidity
18%
Precipitation
0 mm
UV Index
10
Visibility
10 km
Rain Chance
0%
Snow Chance
0%
Sun & Moon
Sunrise
06:04 AM
Sunset
07:46 PM
Moonrise
05:14 PM
Moonset
12:31 AM
Moon Phase
Waxing Gibbous
Moon Illumination
78%
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