Weather Forecast for Custer
South Dakota, United States of America
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Current Weather - Custer: 21°C
Current Weather - Custer: 21°C
South Dakota, United States of America
Patchy rain nearby
Feels like 21°C
Wind
6 km/h SSW
Humidity
63%
Pressure
1020 mb
UV Index
3
Visibility
9 km
Patchy rain nearby
Saturday, August 15, 2026
High
22°C
Low
14°C
Rain Chance
80%
Hourly Forecast
18°C
17°C
16°C
16°C
15°C
Day Statistics
Maximum Wind
13 km/h
Humidity
77%
Precipitation
13 mm
UV Index
3
Visibility
9 km
Rain Chance
80%
Snow Chance
0%
Sun & Moon
Sunrise
05:58 AM
Sunset
07:58 PM
Moonrise
09:24 AM
Moonset
09:14 PM
Moon Phase
Waxing Crescent
Moon Illumination
11%
Air Quality
PM2.5
3.2
μg/m³
PM10
3.4
μg/m³
NO₂
2.7
μg/m³
O₃
72.7
μg/m³
SO₂
0.2
μg/m³
CO
135
μg/m³
Sunny
Sunday, August 16, 2026
High
28°C
Low
14°C
Rain Chance
36%
Hourly Forecast
15°C
15°C
15°C
14°C
14°C
14°C
14°C
15°C
17°C
19°C
21°C
23°C
24°C
25°C
27°C
28°C
28°C
25°C
23°C
23°C
19°C
18°C
17°C
16°C
Day Statistics
Maximum Wind
28 km/h
Humidity
60%
Precipitation
1 mm
UV Index
9
Visibility
10 km
Rain Chance
36%
Snow Chance
0%
Sun & Moon
Sunrise
06:00 AM
Sunset
07:57 PM
Moonrise
10:40 AM
Moonset
09:36 PM
Moon Phase
Waxing Crescent
Moon Illumination
18%
Air Quality
PM2.5
2.9
μg/m³
PM10
3.1
μg/m³
NO₂
2.8
μg/m³
O₃
77.1
μg/m³
SO₂
0.3
μg/m³
CO
128.8
μg/m³
Sunny
Monday, August 17, 2026
High
30°C
Low
16°C
Rain Chance
17%
Hourly Forecast
16°C
17°C
17°C
17°C
17°C
17°C
17°C
19°C
22°C
25°C
27°C
28°C
29°C
29°C
30°C
30°C
30°C
28°C
26°C
24°C
20°C
19°C
18°C
18°C
Day Statistics
Maximum Wind
19 km/h
Humidity
48%
Precipitation
0 mm
UV Index
9
Visibility
10 km
Rain Chance
17%
Snow Chance
0%
Sun & Moon
Sunrise
06:01 AM
Sunset
07:55 PM
Moonrise
11:55 AM
Moonset
10:00 PM
Moon Phase
Waxing Crescent
Moon Illumination
27%
Air Quality
PM2.5
3.3
μg/m³
PM10
3.9
μg/m³
NO₂
2.6
μg/m³
O₃
88.9
μg/m³
SO₂
0.3
μg/m³
CO
114.3
μg/m³
Sunny
Tuesday, August 18, 2026
High
26°C
Low
15°C
Rain Chance
57%
Hourly Forecast
19°C
17°C
18°C
18°C
18°C
17°C
17°C
18°C
20°C
21°C
22°C
23°C
25°C
26°C
26°C
26°C
26°C
25°C
22°C
17°C
16°C
15°C
17°C
17°C
Day Statistics
Maximum Wind
21 km/h
Humidity
53%
Precipitation
2 mm
UV Index
7
Visibility
10 km
Rain Chance
57%
Snow Chance
0%
Sun & Moon
Sunrise
06:02 AM
Sunset
07:54 PM
Moonrise
01:09 PM
Moonset
10:28 PM
Moon Phase
First Quarter
Moon Illumination
37%
Air Quality
PM2.5
5.8
μg/m³
PM10
7
μg/m³
NO₂
3
μg/m³
O₃
81.9
μg/m³
SO₂
0.4
μg/m³
CO
109
μg/m³
Sunny
Wednesday, August 19, 2026
High
25°C
Low
13°C
Rain Chance
62%
Hourly Forecast
17°C
16°C
15°C
15°C
14°C
13°C
14°C
13°C
14°C
21°C
16°C
17°C
25°C
23°C
22°C
20°C
20°C
19°C
19°C
18°C
17°C
16°C
15°C
15°C
Day Statistics
Maximum Wind
13 km/h
Humidity
62%
Precipitation
5 mm
UV Index
6
Visibility
10 km
Rain Chance
62%
Snow Chance
0%
Sun & Moon
Sunrise
06:03 AM
Sunset
07:52 PM
Moonrise
02:20 PM
Moonset
11:02 PM
Moon Phase
First Quarter
Moon Illumination
48%
Air Quality
PM2.5
10.3
μg/m³
PM10
10.7
μg/m³
NO₂
7.9
μg/m³
O₃
46.9
μg/m³
SO₂
0.3
μg/m³
CO
161.9
μg/m³
Sunny
Thursday, August 20, 2026
High
25°C
Low
15°C
Rain Chance
1%
Hourly Forecast
15°C
15°C
15°C
15°C
15°C
15°C
15°C
17°C
20°C
23°C
24°C
24°C
25°C
25°C
25°C
25°C
25°C
25°C
24°C
22°C
21°C
19°C
18°C
18°C
Day Statistics
Maximum Wind
16 km/h
Humidity
40%
Precipitation
0 mm
UV Index
7
Visibility
10 km
Rain Chance
1%
Snow Chance
0%
Sun & Moon
Sunrise
06:04 AM
Sunset
07:51 PM
Moonrise
03:26 PM
Moonset
11:44 PM
Moon Phase
First Quarter
Moon Illumination
58%
Sunny
Friday, August 21, 2026
High
30°C
Low
17°C
Rain Chance
0%
Hourly Forecast
18°C
18°C
17°C
17°C
17°C
18°C
18°C
21°C
24°C
26°C
28°C
29°C
30°C
30°C
30°C
30°C
30°C
30°C
29°C
27°C
24°C
22°C
21°C
21°C
Day Statistics
Maximum Wind
10 km/h
Humidity
29%
Precipitation
0 mm
UV Index
8
Visibility
10 km
Rain Chance
0%
Snow Chance
0%
Sun & Moon
Sunrise
06:05 AM
Sunset
07:49 PM
Moonrise
04:25 PM
Moonset
Does not set today
Moon Phase
First Quarter
Moon Illumination
69%
Solar Radiation Data
Shortwave Radiation
348.3
Diffuse Radiation
92.7
DNI
0
GTI
0
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