Weather Forecast for Rapid City
South Dakota, United States of America
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Current Weather - Rapid City: 17°C
Current Weather - Rapid City: 17°C
South Dakota, United States of America
Overcast
Feels like 14°C
Wind
11 km/h SSE
Humidity
52%
Pressure
1018 mb
UV Index
1
Visibility
10 km
Overcast
Friday, September 25, 2026
High
24°C
Low
13°C
Rain Chance
18%
Hourly Forecast
23°C
21°C
19°C
18°C
17°C
17°C
16°C
Day Statistics
Maximum Wind
25 km/h
Humidity
58%
Precipitation
0 mm
UV Index
5
Visibility
10 km
Rain Chance
18%
Snow Chance
0%
Sun & Moon
Sunrise
06:43 AM
Sunset
06:45 PM
Moonrise
06:13 PM
Moonset
05:44 AM
Moon Phase
Full Moon
Moon Illumination
100%
Air Quality
PM2.5
2.4
μg/m³
PM10
2.7
μg/m³
NO₂
4.3
μg/m³
O₃
72.1
μg/m³
SO₂
0.3
μg/m³
CO
114.6
μg/m³
Sunny
Saturday, September 26, 2026
High
25°C
Low
14°C
Rain Chance
2%
Hourly Forecast
17°C
16°C
15°C
15°C
15°C
14°C
15°C
16°C
17°C
20°C
23°C
25°C
25°C
24°C
24°C
24°C
24°C
23°C
21°C
18°C
17°C
16°C
16°C
15°C
Day Statistics
Maximum Wind
22 km/h
Humidity
46%
Precipitation
0 mm
UV Index
5
Visibility
10 km
Rain Chance
2%
Snow Chance
0%
Sun & Moon
Sunrise
06:44 AM
Sunset
06:43 PM
Moonrise
06:31 PM
Moonset
06:48 AM
Moon Phase
Full Moon
Moon Illumination
99%
Air Quality
PM2.5
2.9
μg/m³
PM10
3.2
μg/m³
NO₂
3.3
μg/m³
O₃
61.6
μg/m³
SO₂
0.3
μg/m³
CO
117.1
μg/m³
Overcast
Sunday, September 27, 2026
High
26°C
Low
13°C
Rain Chance
36%
Hourly Forecast
15°C
15°C
15°C
14°C
14°C
14°C
13°C
14°C
16°C
17°C
19°C
20°C
22°C
23°C
25°C
26°C
26°C
25°C
23°C
21°C
20°C
19°C
20°C
20°C
Day Statistics
Maximum Wind
38 km/h
Humidity
58%
Precipitation
1 mm
UV Index
5
Visibility
10 km
Rain Chance
36%
Snow Chance
0%
Sun & Moon
Sunrise
06:46 AM
Sunset
06:41 PM
Moonrise
06:50 PM
Moonset
07:55 AM
Moon Phase
Waning Gibbous
Moon Illumination
96%
Air Quality
PM2.5
3.6
μg/m³
PM10
3.8
μg/m³
NO₂
4.2
μg/m³
O₃
65.2
μg/m³
SO₂
0.8
μg/m³
CO
123.9
μg/m³
Overcast
Monday, September 28, 2026
High
24°C
Low
14°C
Rain Chance
36%
Hourly Forecast
19°C
19°C
20°C
19°C
18°C
17°C
18°C
17°C
19°C
21°C
21°C
19°C
22°C
23°C
24°C
23°C
21°C
22°C
19°C
17°C
16°C
15°C
15°C
14°C
Day Statistics
Maximum Wind
25 km/h
Humidity
54%
Precipitation
0 mm
UV Index
4
Visibility
10 km
Rain Chance
36%
Snow Chance
0%
Sun & Moon
Sunrise
06:47 AM
Sunset
06:39 PM
Moonrise
07:13 PM
Moonset
09:04 AM
Moon Phase
Waning Gibbous
Moon Illumination
91%
Air Quality
PM2.5
2.7
μg/m³
PM10
3.1
μg/m³
NO₂
3.1
μg/m³
O₃
66.8
μg/m³
SO₂
0.4
μg/m³
CO
124.9
μg/m³
Overcast
Tuesday, September 29, 2026
High
20°C
Low
13°C
Rain Chance
17%
Hourly Forecast
14°C
14°C
14°C
14°C
14°C
14°C
13°C
13°C
13°C
14°C
16°C
17°C
17°C
18°C
19°C
20°C
20°C
19°C
19°C
16°C
14°C
14°C
13°C
13°C
Day Statistics
Maximum Wind
21 km/h
Humidity
65%
Precipitation
0 mm
UV Index
5
Visibility
10 km
Rain Chance
17%
Snow Chance
0%
Sun & Moon
Sunrise
06:48 AM
Sunset
06:38 PM
Moonrise
07:40 PM
Moonset
10:15 AM
Moon Phase
Waning Gibbous
Moon Illumination
84%
Air Quality
PM2.5
4.9
μg/m³
PM10
5.3
μg/m³
NO₂
7.7
μg/m³
O₃
47.1
μg/m³
SO₂
0.5
μg/m³
CO
158.7
μg/m³
Sunny
Wednesday, September 30, 2026
High
23°C
Low
13°C
Rain Chance
2%
Hourly Forecast
13°C
13°C
13°C
13°C
13°C
13°C
13°C
15°C
16°C
17°C
19°C
20°C
21°C
22°C
23°C
23°C
23°C
22°C
21°C
19°C
17°C
15°C
15°C
14°C
Day Statistics
Maximum Wind
25 km/h
Humidity
48%
Precipitation
0 mm
UV Index
6
Visibility
10 km
Rain Chance
2%
Snow Chance
0%
Sun & Moon
Sunrise
06:49 AM
Sunset
06:36 PM
Moonrise
08:16 PM
Moonset
11:28 AM
Moon Phase
Waning Gibbous
Moon Illumination
75%
Sunny
Thursday, October 01, 2026
High
20°C
Low
10°C
Rain Chance
4%
Hourly Forecast
13°C
13°C
12°C
12°C
12°C
11°C
11°C
13°C
15°C
17°C
18°C
19°C
20°C
20°C
19°C
19°C
18°C
17°C
16°C
14°C
13°C
11°C
11°C
10°C
Day Statistics
Maximum Wind
38 km/h
Humidity
52%
Precipitation
0 mm
UV Index
5
Visibility
10 km
Rain Chance
4%
Snow Chance
0%
Sun & Moon
Sunrise
06:50 AM
Sunset
06:34 PM
Moonrise
09:01 PM
Moonset
12:40 PM
Moon Phase
Last Quarter
Moon Illumination
66%
Solar Radiation Data
Shortwave Radiation
87.44
Diffuse Radiation
42.24
DNI
0
GTI
0
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