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
Cloudy
Feels like 20°C
Wind
5 km/h NNW
Humidity
45%
Pressure
1015 mb
UV Index
2
Visibility
10 km
Sunny
Wednesday, August 19, 2026
High
28°C
Low
14°C
Rain Chance
57%
Hourly Forecast
26°C
25°C
23°C
20°C
18°C
18°C
18°C
Day Statistics
Maximum Wind
16 km/h
Humidity
52%
Precipitation
1 mm
UV Index
7
Visibility
10 km
Rain Chance
57%
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
6.1
μg/m³
PM10
7.2
μg/m³
NO₂
3
μg/m³
O₃
87.8
μg/m³
SO₂
0.4
μg/m³
CO
113.7
μg/m³
Sunny
Thursday, August 20, 2026
High
32°C
Low
17°C
Rain Chance
1%
Hourly Forecast
18°C
18°C
18°C
17°C
18°C
18°C
18°C
19°C
23°C
26°C
28°C
30°C
31°C
31°C
32°C
32°C
31°C
30°C
29°C
26°C
23°C
21°C
21°C
20°C
Day Statistics
Maximum Wind
13 km/h
Humidity
31%
Precipitation
0 mm
UV Index
9
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%
Air Quality
PM2.5
7.1
μg/m³
PM10
8.1
μg/m³
NO₂
2.9
μg/m³
O₃
93.4
μg/m³
SO₂
0.4
μg/m³
CO
117.4
μg/m³
Sunny
Friday, August 21, 2026
High
30°C
Low
17°C
Rain Chance
2%
Hourly Forecast
19°C
18°C
18°C
18°C
18°C
17°C
17°C
19°C
22°C
24°C
25°C
26°C
27°C
28°C
29°C
30°C
30°C
30°C
29°C
26°C
23°C
22°C
21°C
20°C
Day Statistics
Maximum Wind
15 km/h
Humidity
36%
Precipitation
0 mm
UV Index
9
Visibility
10 km
Rain Chance
2%
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%
Air Quality
PM2.5
6.5
μg/m³
PM10
7.4
μg/m³
NO₂
2.4
μg/m³
O₃
85.6
μg/m³
SO₂
0.5
μg/m³
CO
110.8
μg/m³
Overcast
Saturday, August 22, 2026
High
34°C
Low
19°C
Rain Chance
6%
Hourly Forecast
19°C
19°C
19°C
19°C
19°C
19°C
19°C
19°C
22°C
25°C
27°C
29°C
30°C
31°C
32°C
33°C
34°C
34°C
32°C
28°C
26°C
26°C
20°C
19°C
Day Statistics
Maximum Wind
16 km/h
Humidity
44%
Precipitation
0 mm
UV Index
9
Visibility
10 km
Rain Chance
6%
Snow Chance
0%
Sun & Moon
Sunrise
06:06 AM
Sunset
07:47 PM
Moonrise
05:14 PM
Moonset
12:34 AM
Moon Phase
Waxing Gibbous
Moon Illumination
78%
Air Quality
PM2.5
6.1
μg/m³
PM10
6.5
μg/m³
NO₂
2
μg/m³
O₃
82.2
μg/m³
SO₂
0.5
μg/m³
CO
117.8
μg/m³
Sunny
Sunday, August 23, 2026
High
30°C
Low
19°C
Rain Chance
4%
Hourly Forecast
20°C
19°C
19°C
22°C
19°C
19°C
21°C
19°C
23°C
29°C
24°C
27°C
30°C
29°C
27°C
30°C
29°C
29°C
29°C
27°C
25°C
23°C
22°C
21°C
Day Statistics
Maximum Wind
17 km/h
Humidity
46%
Precipitation
0 mm
UV Index
7
Visibility
10 km
Rain Chance
4%
Snow Chance
0%
Sun & Moon
Sunrise
06:07 AM
Sunset
07:46 PM
Moonrise
05:54 PM
Moonset
01:31 AM
Moon Phase
Waxing Gibbous
Moon Illumination
86%
Air Quality
PM2.5
5.6
μg/m³
PM10
6.3
μg/m³
NO₂
3.9
μg/m³
O₃
73.7
μg/m³
SO₂
0.4
μg/m³
CO
129.3
μg/m³
Patchy rain nearby
Monday, August 24, 2026
High
30°C
Low
20°C
Rain Chance
57%
Hourly Forecast
20°C
20°C
21°C
21°C
21°C
20°C
20°C
22°C
24°C
26°C
27°C
28°C
30°C
28°C
26°C
24°C
25°C
27°C
28°C
26°C
24°C
22°C
21°C
20°C
Day Statistics
Maximum Wind
15 km/h
Humidity
46%
Precipitation
1 mm
UV Index
7
Visibility
10 km
Rain Chance
57%
Snow Chance
0%
Sun & Moon
Sunrise
06:09 AM
Sunset
07:44 PM
Moonrise
06:26 PM
Moonset
02:33 AM
Moon Phase
Waxing Gibbous
Moon Illumination
93%
Patchy rain nearby
Tuesday, August 25, 2026
High
26°C
Low
17°C
Rain Chance
39%
Hourly Forecast
20°C
19°C
19°C
18°C
18°C
17°C
17°C
18°C
19°C
20°C
22°C
24°C
26°C
25°C
24°C
23°C
22°C
22°C
21°C
21°C
20°C
19°C
19°C
18°C
Day Statistics
Maximum Wind
13 km/h
Humidity
58%
Precipitation
1 mm
UV Index
7
Visibility
10 km
Rain Chance
39%
Snow Chance
0%
Sun & Moon
Sunrise
06:10 AM
Sunset
07:42 PM
Moonrise
06:52 PM
Moonset
03:38 AM
Moon Phase
Full Moon
Moon Illumination
97%
Solar Radiation Data
Shortwave Radiation
219
Diffuse Radiation
34.58
DNI
0
GTI
0
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