Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 18

Waning Crescent 10%

03:34

18:21

02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad

Sun - Rise: 07:11, Set: 19:30, Transit: 13:20. Moon - Rise: 03:34, Set: 18:21. Civil Dark: 19:58 - 06:42. Nautical Dark: 20:32 - 06:08. Astro Dark: 21:06 - 05:34

Total Clouds (% Sky Obscured)

90
87
61
75
76
97
88
98
99
85
99
96
98
100
100
100
100
100
100
92
100
100
93
100

Low Clouds (% Sky Obscured)

90
82
61
38
47
60
58
43
29
26
31
61
78
43
57
70
21
3
2
2
1
24
31
35

Medium Clouds (% Sky Obscured)

17
3
1
0
0
0
0
0
0
0
0
19
17
18
24
20
20
26
34
41
25
9
15
20

High Clouds (% Sky Obscured)

69
45
44
53
57
92
81
94
96
58
96
77
88
100
100
100
100
100
100
89
100
100
89
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
29
100
100
71
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
5
0
0
0
0
0
0
0
1
1
5
7
10
4
0
2
6
7
3
2
2

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

7
6
5
5
5
5
5
7
7
9
10
11
12
14
13
12
11
7
6
6
5
4
4
5

Chance of Frost

Temperature (°C)

18
17
17
17
17
17
17
17
18
19
20
21
22
23
23
22
21
20
19
18
18
17
17
16

Feels Like (°C)

19
18
18
18
18
17
17
17
17
18
18
19
19
19
19
19
19
19
18
18
18
17
16
16

Dew Point (°C)

16
16
16
17
16
16
16
16
15
14
12
11
10
11
10
10
12
13
13
14
16
16
16
15

Relative Humidity (%)

92
93
95
96
95
96
98
90
80
70
60
51
45
45
45
46
56
61
69
77
89
89
93
95

Pressure (mb)

1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1013
1013
1013
1013
1012
1013
1013
1013
1014
1014
1014
1014
1014

Ozone (du)

287
289
289
287
285
284
284
285
284
283
283
282
281
279
279
279
279
279
280
280
280
280
282
283

Friday 19

Waning Crescent 5%

04:45

18:42

02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad

Sun - Rise: 07:12, Set: 19:28, Transit: 13:20. Moon - Rise: 04:45, Set: 18:42. Civil Dark: 19:56 - 06:43. Nautical Dark: 20:30 - 06:10. Astro Dark: 21:04 - 05:35

Total Clouds (% Sky Obscured)

88
93
96
98
98
96
96
100
96
100
88
90
93
92
89
94
90
86
73
80
59
83
98
98

Low Clouds (% Sky Obscured)

63
78
89
90
89
88
87
100
82
71
50
19
8
20
75
94
90
86
24
56
59
83
84
90

Medium Clouds (% Sky Obscured)

27
20
20
14
16
27
30
30
31
54
39
55
61
72
46
52
69
63
19
26
24
19
75
96

High Clouds (% Sky Obscured)

63
51
12
2
0
0
50
56
71
100
45
45
45
4
7
2
1
6
2
2
1
0
50
1

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
9
4
4
7
5

Fog (%)

0
0
0
0
9
25
11
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
Light Rain
Light Rain
Very Light Rain
None

Precipitation Probability (%)

6
5
21
21
12
13
38
54
33
33
17
15
11
7
11
12
10
25
43
44
66
71
59
36

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.4
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0.4
0.3
0

Wind Speed/Direction (mph)

4
4
4
4
5
6
6
8
7
9
9
10
10
10
11
11
9
8
5
4
5
5
4
3

Chance of Frost

Temperature (°C)

16
16
16
16
16
16
16
17
17
17
17
19
19
19
19
19
19
18
17
17
16
15
15
15

Feels Like (°C)

15
15
15
16
16
16
15
16
16
17
16
17
17
17
17
16
17
17
17
18
16
15
16
16

Dew Point (°C)

15
15
15
15
15
15
15
14
14
11
8
7
6
5
4
5
8
10
12
15
15
14
14
14

Relative Humidity (%)

96
98
96
93
92
92
92
85
82
64
54
46
41
39
38
38
50
59
72
89
92
92
92
95

Pressure (mb)

1014
1014
1014
1014
1014
1014
1015
1015
1015
1015
1015
1014
1014
1013
1013
1013
1014
1014
1014
1015
1015
1016
1015
1015

Ozone (du)

285
288
291
290
290
289
291
296
300
301
299
300
301
303
303
300
297
294
293
289
288
286
285
282

Saturday 20

Waning Crescent 1%

05:54

19:01

02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 OK
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad

Sun - Rise: 07:13, Set: 19:26, Transit: 13:19. Moon - Rise: 05:54, Set: 19:01. Civil Dark: 19:54 - 06:44. Nautical Dark: 20:28 - 06:11. Astro Dark: 21:02 - 05:36

Total Clouds (% Sky Obscured)

80
96
91
92
88
92
95
77
87
95
70
66
82
77
91
95
38
47
58
67
52
56
55
49

Low Clouds (% Sky Obscured)

76
86
91
92
88
86
44
26
48
51
40
23
23
21
25
20
3
10
18
26
20
17
23
27

Medium Clouds (% Sky Obscured)

78
52
38
41
42
53
57
36
37
33
3
5
25
52
45
25
25
20
25
1
14
27
43
27

High Clouds (% Sky Obscured)

0
1
27
14
4
7
60
58
56
70
55
56
57
52
76
88
37
14
31
27
3
2
0
0

ISS Passover

Visibility (miles)

9
9
7
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

34
37
23
4
6
6
5
4
1
1
0
1
0
0
0
0
2
4
7
3
4
5
23
33

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

4
6
6
8
8
7
7
8
8
8
8
8
8
8
9
8
7
5
3
3
2
3
4
5

Chance of Frost

Temperature (°C)

15
15
15
15
15
15
15
15
17
19
20
21
22
22
23
23
22
21
19
18
17
17
16
16

Feels Like (°C)

16
15
15
14
14
14
14
14
16
18
20
20
21
21
22
21
21
21
20
18
17
18
18
17

Dew Point (°C)

14
15
15
14
14
14
14
13
13
14
13
12
11
10
9
8
8
10
12
11
11
11
13
15

Relative Humidity (%)

93
95
95
93
95
95
95
87
81
72
62
57
49
45
42
38
41
50
60
62
66
69
79
90

Pressure (mb)

1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1014
1014
1013
1012
1012
1011
1011
1011
1011
1011
1012
1012
1012
1012

Ozone (du)

281
280
280
280
281
281
280
279
279
279
280
280
281
281
281
281
281
281
283
283
283
285
286
286

Sunday 21

New Moon 0%

07:00

19:18

02 Bad
03 Bad
04 Bad
05 OK
06 OK
07 OK
08 OK
09 OK
10 OK
11 OK
12 OK
13 Bad
14 Bad
15 Bad
16 Bad
17 OK
18 OK
19 OK
20 OK
21 OK
22 OK
23 OK
00 OK
01 Bad

Sun - Rise: 07:14, Set: 19:24, Transit: 13:19. Moon - Rise: 07:00, Set: 19:18. Civil Dark: 19:53 - 06:45. Nautical Dark: 20:26 - 06:12. Astro Dark: 21:00 - 05:38

Total Clouds (% Sky Obscured)

49
42
36
30
23
28
36
35
40
27
24
39
51
62
47
34
19
20
20
21
28
33
35
43

Low Clouds (% Sky Obscured)

24
21
19
14
5
5
9
3
11
13
18
27
35
40
27
20
12
13
15
16
11
6
2
6

Medium Clouds (% Sky Obscured)

13
0
7
13
13
10
10
9
6
4
3
4
5
5
4
3
2
2
1
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
16
24
29
20
13
0
0
0
0
12
25
35
42

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

24
21
17
9
0
0
0
0
0
0
0
15
22
25
23
20
15
17
13
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

3
3
3
3
4
4
4
6
8
8
9
11
10
10
10
10
9
8
8
8
8
7
7
6

Chance of Frost

Temperature (°C)

16
16
15
15
14
14
15
17
19
21
23
25
25
24
24
24
23
23
21
20
19
18
18
17

Feels Like (°C)

17
18
17
16
15
15
17
18
20
21
23
25
24
24
23
23
23
23
23
21
20
19
19
19

Dew Point (°C)

15
15
14
14
14
13
15
16
16
15
15
14
12
11
9
9
10
13
15
15
15
16
15
16

Relative Humidity (%)

93
93
92
93
95
96
96
90
82
71
60
52
46
41
38
38
41
52
67
72
80
85
86
90

Pressure (mb)

1011
1011
1010
1010
1010
1009
1009
1009
1009
1008
1008
1007
1006
1006
1005
1005
1005
1005
1005
1005
1005
1005
1005
1006

Ozone (du)

285
284
284
284
284
284
284
284
284
283
283
282
282
282
281
281
280
279
278
278
278
278
277
277

Monday 22

Waxing Crescent 1%

08:05

19:36

02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 OK
09 OK
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad

Sun - Rise: 07:15, Set: 19:22, Transit: 13:19. Moon - Rise: 08:05, Set: 19:36. Civil Dark: 19:51 - 06:47. Nautical Dark: 20:24 - 06:13. Astro Dark: 20:58 - 05:39

Total Clouds (% Sky Obscured)

46
90
82
69
62
56
46
33
45
78
100
70
83
100
96
91
87
80
72
70
82
85
91
91

Low Clouds (% Sky Obscured)

7
10
9
8
8
5
3
0
0
0
0
13
26
40
41
43
45
51
54
56
67
56
9
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
4
45
73
98
40
78
100
89
79
69
69
70
68
67
67
70
72

High Clouds (% Sky Obscured)

45
80
66
53
35
35
35
23
29
73
100
46
72
98
77
56
35
55
70
70
70
65
55
42

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
3
5
7
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
Very Light Rain
None
None
None
None
None
None
Very Light Rain
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
1
40
5
30
39
44
47
52
59
53
36
27
30
39
47
16
43

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.2
0
0
0
0
0
0
0.2
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

6
6
6
5
5
5
6
6
5
8
8
15
13
14
16
16
16
16
16
15
15
15
14
14

Chance of Frost

Temperature (°C)

17
16
16
16
16
16
17
19
21
23
24
25
25
24
22
21
20
18
18
17
16
15
15
14

Feels Like (°C)

19
18
16
16
17
16
17
19
22
23
24
22
24
23
23
21
19
17
15
14
13
13
12
11

Dew Point (°C)

15
15
15
15
15
15
15
15
13
13
13
14
16
16
17
15
13
12
12
13
13
12
12
11

Relative Humidity (%)

92
92
93
92
92
92
86
73
58
55
47
50
57
63
72
69
67
65
71
77
82
82
82
82

Pressure (mb)

1006
1005
1005
1005
1005
1005
1006
1006
1007
1007
1007
1007
1006
1006
1006
1006
1007
1007
1007
1008
1008
1008
1008
1008

Ozone (du)

277
276
276
276
279
277
276
274
273
274
273
273
274
275
276
276
276
277
278
280
281
283
284
286

Tuesday 23

Waxing Crescent 4%

09:09

19:54

02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad

Sun - Rise: 07:16, Set: 19:21, Transit: 13:18. Moon - Rise: 09:09, Set: 19:54. Civil Dark: 19:49 - 06:48. Nautical Dark: 20:22 - 06:14. Astro Dark: 20:57 - 05:40

Total Clouds (% Sky Obscured)

95
96
93
92
94
85
74
45
29
39
48
40
31
23
22
21
20
24
37
40
59
61
62
58

Low Clouds (% Sky Obscured)

5
5
70
80
85
85
74
45
29
39
44
22
11
6
8
9
10
4
4
3
0
0
0
0

Medium Clouds (% Sky Obscured)

75
78
80
77
82
58
35
9
20
31
40
28
17
7
5
2
0
1
5
7
5
4
2
1

High Clouds (% Sky Obscured)

45
30
31
50
69
46
23
0
0
0
5
14
18
23
22
21
10
4
3
12
15
37
46
46

ISS Passover

Visibility (miles)

9
9
9
9
9
9
6
4
2
4
7
9
9
8
8
8
7
7
7
8
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None

Precipitation Probability (%)

59
51
60
64
64
67
63
53
68
79
87
95
95
95
95
95
79
71
71
51
52
44
10
14

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.2
0.4
0.5
0.7
0.6
0.3
0.5
0.5
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

13
13
14
13
12
11
12
12
13
14
15
16
13
11
10
7
5
6
4
5
6
6
6
7

Chance of Frost

Temperature (°C)

14
14
14
14
14
13
14
14
15
16
17
19
19
19
19
19
18
17
16
15
14
13
12
12

Feels Like (°C)

10
11
11
11
10
10
11
12
13
13
14
16
17
17
18
17
17
18
15
16
15
15
15
15

Dew Point (°C)

11
11
11
12
12
12
13
14
15
16
16
17
17
17
16
16
16
16
15
14
13
12
11
10

Relative Humidity (%)

82
83
83
87
90
93
93
96
96
95
93
92
88
85
81
84
88
93
92
92
92
90
90
88

Pressure (mb)

1008
1008
1007
1007
1008
1008
1008
1009
1009
1009
1009
1009
1009
1009
1010
1010
1011
1011
1012
1013
1014
1014
1014
1015

Ozone (du)

287
288
289
290
290
291
290
289
288
287
286
285
284
283
281
281
281
280
282
283
285
285
285
285

Wednesday 24

Waxing Crescent 9%

10:14

20:15

Sun - Rise: 07:17, Set: 19:19, Transit: 13:18. Moon - Rise: 10:14, Set: 20:15. Civil Dark: 19:47 - 06:49. Nautical Dark: 20:21 - 06:15. Astro Dark: 20:55 - 05:41

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

Forecast for Sioux Falls, Minnehaha, United States of America (43.55,-96.73)

Generated: 18/09/25 02:32:42. Forecast: 18/09/25 to 24/09/25. Timezone: UTC-5.00