Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 29

Full Moon 100%

20:35

06:48

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

Sun - Rise: 05:59, Set: 20:17, Transit: 13:07. Moon - Rise: 20:35, Set: 06:48. Civil Dark: 20:47 - 05:28. Nautical Dark: 21:25 - 04:51. Astro Dark: 22:06 - 04:10

Total Clouds (% Sky Obscured)

38
47
59
83
79
70
67
38
51
20
71
40
86
95
96
100
98
99
91
83
90
87
94
83

Low Clouds (% Sky Obscured)

38
47
43
62
67
57
51
38
19
20
23
5
23
26
90
79
90
99
75
81
67
87
84
83

Medium Clouds (% Sky Obscured)

23
28
32
33
19
12
12
4
0
0
9
24
76
62
68
68
84
62
73
55
36
42
32
27

High Clouds (% Sky Obscured)

0
0
0
0
0
0
3
7
35
0
65
13
4
40
35
35
12
10
19
45
50
60
16
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
7
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
Light Rain
Light Rain
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
1
2
16
13
0
0
3
10
40
24
6
25
50
42
4
3
3
16
19
14

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0.4
0
0
0
0
0
0

Wind Speed/Direction (mph)

10
10
10
10
11
12
11
11
10
9
8
8
8
8
9
8
8
7
7
8
9
10
11
10

Chance of Frost

Temperature (°C)

26
27
28
28
28
27
26
25
23
22
22
21
21
20
20
20
20
20
20
20
21
22
22
22

Feels Like (°C)

25
27
27
27
27
25
25
24
24
23
23
21
21
20
19
19
20
20
20
20
20
20
21
21

Dew Point (°C)

15
16
19
16
17
17
17
18
18
17
17
16
15
15
14
15
15
15
16
16
15
15
15
15

Relative Humidity (%)

52
49
57
48
50
56
57
65
71
72
73
71
71
70
70
72
74
71
76
77
70
66
62
62

Pressure (mb)

1003
1002
1002
1002
1002
1002
1003
1003
1004
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1006
1007
1008
1008
1008

Ozone (du)

349
350
349
348
346
345
347
350
354
355
351
347
347
345
341
338
335
336
334
329
330
335
336
334

Thursday 30

Waning Gibbous 97%

21:01

07:52

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

Sun - Rise: 06:00, Set: 20:16, Transit: 13:07. Moon - Rise: 21:01, Set: 07:52. Civil Dark: 20:46 - 05:29. Nautical Dark: 21:24 - 04:52. Astro Dark: 22:05 - 04:11

Total Clouds (% Sky Obscured)

98
94
87
83
95
84
49
32
7
4
33
30
26
5
0
0
0
0
0
0
0
15
24
37

Low Clouds (% Sky Obscured)

98
94
87
76
56
27
15
0
0
0
33
22
7
0
0
0
0
0
0
0
0
15
24
28

Medium Clouds (% Sky Obscured)

33
34
35
28
31
30
18
12
7
2
5
14
17
4
0
0
0
0
0
0
0
0
0
30

High Clouds (% Sky Obscured)

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

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 (%)

11
9
2
4
11
10
12
13
8
4
0
0
0
0
0
0
0
0
0
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)

10
9
9
8
7
7
5
4
4
4
4
4
3
2
2
3
3
2
2
3
4
4
5
6

Chance of Frost

Temperature (°C)

23
23
24
25
25
25
25
25
23
22
21
21
20
20
20
20
20
19
19
20
22
24
25
27

Feels Like (°C)

22
22
23
25
25
24
25
27
26
25
25
24
25
25
24
24
24
23
23
23
25
27
28
29

Dew Point (°C)

14
14
14
13
13
15
16
16
18
18
18
18
18
18
18
18
18
18
17
17
17
17
17
16

Relative Humidity (%)

57
58
52
47
47
56
58
59
71
78
80
82
85
85
85
86
88
89
89
84
75
66
59
53

Pressure (mb)

1009
1009
1009
1009
1009
1010
1010
1010
1011
1012
1012
1013
1013
1013
1013
1013
1014
1014
1014
1015
1015
1015
1015
1015

Ozone (du)

331
329
332
334
334
332
329
328
328
328
330
331
332
334
334
336
338
338
340
339
335
333
336
334

Friday 31

Waning Gibbous 93%

21:25

08:56

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

Sun - Rise: 06:00, Set: 20:15, Transit: 13:07. Moon - Rise: 21:25, Set: 08:56. Civil Dark: 20:45 - 05:30. Nautical Dark: 21:22 - 04:53. Astro Dark: 22:03 - 04:13

Total Clouds (% Sky Obscured)

60
40
50
40
33
40
59
33
57
65
41
74
62
62
56
47
64
68
69
74
73
73
73
71

Low Clouds (% Sky Obscured)

21
21
30
36
25
40
41
0
0
5
0
0
0
0
0
0
0
0
0
0
0
0
0
8

Medium Clouds (% Sky Obscured)

33
29
40
27
25
19
5
3
19
26
31
33
29
23
18
10
20
23
35
28
18
12
3
48

High Clouds (% Sky Obscured)

54
0
0
0
0
0
0
3
3
20
2
40
29
35
35
35
35
35
40
55
66
72
73
71

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 (%)

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 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)

6
6
6
7
7
5
4
4
3
2
3
4
5
4
3
3
3
3
2
2
2
2
3
4

Chance of Frost

Temperature (°C)

28
29
30
30
30
30
30
29
27
26
25
24
23
23
22
22
21
21
21
21
23
25
26
28

Feels Like (°C)

30
31
32
32
31
32
32
29
28
27
26
26
24
24
24
23
23
23
22
23
24
26
28
29

Dew Point (°C)

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

Relative Humidity (%)

48
43
40
37
36
35
36
41
47
48
52
63
73
75
76
78
79
80
80
79
73
67
63
52

Pressure (mb)

1015
1014
1014
1013
1013
1013
1013
1013
1013
1014
1014
1014
1014
1014
1014
1014
1014
1014
1015
1015
1015
1015
1015
1015

Ozone (du)

334
335
332
329
323
320
316
314
314
312
311
310
309
307
307
306
304
304
304
304
306
305
304
304

Saturday 1

Waning Gibbous 87%

21:47

10:01

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
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 06:01, Set: 20:14, Transit: 13:07. Moon - Rise: 21:47, Set: 10:01. Civil Dark: 20:44 - 05:31. Nautical Dark: 21:21 - 04:55. Astro Dark: 22:02 - 04:14

Total Clouds (% Sky Obscured)

73
72
77
90
93
95
75
74
79
88
98
94
90
88
92
96
100
100
100
100
100
100
100
96

Low Clouds (% Sky Obscured)

15
23
26
29
32
32
31
31
22
14
6
12
19
26
46
55
64
61
56
51
50
42
34
30

Medium Clouds (% Sky Obscured)

48
39
52
62
52
53
34
43
42
32
25
51
70
78
80
79
83
76
71
63
53
47
35
48

High Clouds (% Sky Obscured)

66
62
72
84
79
84
61
66
67
83
95
76
56
41
60
81
99
99
100
100
100
100
100
77

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
4
9
9
9
9
9
9
9
9
9
8

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

Precipitation Probability (%)

0
0
0
0
1
1
1
3
3
5
6
10
37
57
37
32
27
15
1
0
2
17
19
15

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

29
30
31
31
31
31
30
28
27
26
25
24
23
23
22
22
22
22
22
23
23
24
25
26

Feels Like (°C)

30
30
30
30
29
30
29
28
27
26
25
24
24
23
23
24
24
24
25
25
25
26
26
28

Dew Point (°C)

17
15
14
13
14
15
16
16
16
17
17
17
18
19
19
19
20
20
20
21
20
21
22
22

Relative Humidity (%)

48
40
34
33
34
38
44
48
52
59
64
67
71
78
84
83
85
85
88
88
84
85
83
77

Pressure (mb)

1015
1014
1013
1013
1013
1013
1013
1013
1013
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1015
1015
1015
1015

Ozone (du)

304
303
302
300
299
298
298
297
298
297
298
297
296
296
295
296
297
297
297
299
298
300
299
299

Sunday 2

Waning Gibbous 78%

22:08

11:07

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
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 06:02, Set: 20:13, Transit: 13:07. Moon - Rise: 22:08, Set: 11:07. Civil Dark: 20:43 - 05:32. Nautical Dark: 21:20 - 04:56. Astro Dark: 22:00 - 04:16

Total Clouds (% Sky Obscured)

92
85
82
79
75
83
92
100
100
100
100
98
96
94
94
93
91
91
91
93
92
90
89
93

Low Clouds (% Sky Obscured)

31
30
30
39
42
46
48
52
48
48
40
46
59
66
75
73
74
69
63
56
54
51
47
40

Medium Clouds (% Sky Obscured)

61
74
74
76
74
69
62
55
55
55
55
50
45
35
64
66
69
73
78
85
72
61
52
55

High Clouds (% Sky Obscured)

56
34
27
20
22
48
74
100
100
100
100
93
87
81
61
48
36
42
54
65
52
42
30
53

ISS Passover

Visibility (miles)

8
9
9
9
9
9
9
9
9
1
2
8
3
9
7
8
8
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
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

5
5
3
3
7
3
0
15
73
92
73
65
51
30
44
48
50
48
46
43
44
44
41
44

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.5
0.7
0.4
0.4
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

7
8
8
10
9
9
9
9
8
8
7
6
6
6
6
6
5
4
4
4
4
4
4
5

Chance of Frost

Temperature (°C)

27
28
30
30
29
29
28
27
26
25
24
23
23
22
22
22
22
22
22
22
23
24
25
26

Feels Like (°C)

28
28
29
29
29
29
28
28
27
27
26
25
24
24
23
23
23
23
23
23
23
26
27
28

Dew Point (°C)

21
21
21
19
20
21
21
21
21
23
22
22
22
21
20
20
20
21
21
22
22
23
23
24

Relative Humidity (%)

68
65
58
51
57
59
63
69
72
90
89
92
92
89
89
91
92
95
95
96
95
94
91
88

Pressure (mb)

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

Ozone (du)

299
298
298
298
298
298
297
298
299
300
301
301
301
300
298
299
300
301
301
302
302
303
304
305

Monday 3

Waning Gibbous 69%

22:32

No Set

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
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 06:03, Set: 20:12, Transit: 13:07. Moon - Rise: 22:32, Set: No Set. Civil Dark: 20:42 - 05:33. Nautical Dark: 21:18 - 04:57. Astro Dark: 21:58 - 04:17

Total Clouds (% Sky Obscured)

97
100
100
100
100
100
100
100
100
100
100
97
92
91
96
98
100
100
100
100
99
98
99
96

Low Clouds (% Sky Obscured)

34
25
35
45
56
49
43
36
48
53
48
41
41
55
63
72
84
79
78
73
77
81
85
85

Medium Clouds (% Sky Obscured)

58
63
72
79
85
65
45
24
23
22
33
31
42
40
40
40
40
40
40
40
40
45
40
32

High Clouds (% Sky Obscured)

77
100
100
100
100
100
100
100
100
100
100
97
92
91
96
98
100
100
100
100
99
98
99
94

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
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

43
40
33
24
7
15
16
15
19
17
11
40
57
71
87
95
95
95
95
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.3
0.5
0.8
1
0.9
1
1.3
1.2
1.3
1.5
1

Wind Speed/Direction (mph)

6
6
7
7
7
7
7
7
7
6
6
5
6
6
6
5
5
5
5
5
4
4
4
4

Chance of Frost

Temperature (°C)

27
28
29
29
29
29
27
26
25
25
24
23
23
23
22
22
22
22
22
22
22
23
25
26

Feels Like (°C)

28
28
28
32
30
29
28
28
28
25
25
25
24
25
24
23
23
24
23
23
22
23
23
23

Dew Point (°C)

22
21
19
19
18
18
18
18
17
17
17
17
17
17
17
17
17
17
17
16
16
14
13
11

Relative Humidity (%)

76
64
55
54
53
53
56
58
61
64
65
68
70
69
71
73
74
76
72
69
66
56
47
40

Pressure (mb)

1014
1013
1013
1013
1013
1013
1014
1015
1015
1015
1016
1016
1016
1017
1017
1017
1017
1017
1017
1017
1018
1018
1018
1018

Ozone (du)

305
305
305
305
306
306
307
308
308
312
315
318
318
318
318
318
317
317
316
315
315
314
313
312

Tuesday 4

Waning Gibbous 58%

22:58

12:16

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
02 Bad
03 OK
04 OK
05 OK
06 OK
07 OK

Sun - Rise: 06:04, Set: 20:11, Transit: 13:07. Moon - Rise: 22:58, Set: 12:16. Civil Dark: 20:40 - 05:34. Nautical Dark: 21:17 - 04:58. Astro Dark: 21:57 - 04:18

Total Clouds (% Sky Obscured)

95
94
94
97
100
100
100
100
95
89
81
68
53
41
30
28
31
30
44
42

Low Clouds (% Sky Obscured)

80
76
79
83
87
76
66
55
59
63
64
61
53
41
30
28
31
30
44
42

Medium Clouds (% Sky Obscured)

24
17
17
20
23
23
24
24
28
31
35
27
24
18
12
5
0
1
2
3

High Clouds (% Sky Obscured)

90
72
79
91
100
100
100
100
73
47
21
24
25
24
15
8
0
0
0
0

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

93
66
72
81
92
95
95
95
95
95
82
66
57
44
36
26
6
7
6
1

Precipitation Amount (mm)

0.6
0
0.3
0.5
0.8
1
1.3
1.5
1.1
0.8
0.7
0.4
0.3
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

4
5
6
6
6
6
5
4
3
3
3
4
3
3
3
3
3
3
3
3

Chance of Frost

Temperature (°C)

27
28
29
29
28
28
27
26
25
25
25
24
24
24
23
23
23
23
23
24

Feels Like (°C)

24
24
24
30
28
28
27
28
28
24
25
26
26
26
27
25
26
27
26
26

Dew Point (°C)

10
9
8
8
7
7
9
10
11
13
13
14
15
16
17
17
17
17
17
16

Relative Humidity (%)

35
31
27
27
26
27
31
36
41
45
49
54
58
62
67
67
67
67
65
62

Pressure (mb)

1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1019
1019
1019
1019
1019
1019
1019
1019
1019

Ozone (du)

313
314
314
314
313
312
313
314
315
317
318
319
320
320
320
319
319
318
317
316

Forecast for Swarthmore, Delaware, United States of America (39.90,-75.35)

Generated: 29/07/26 12:33:07. Forecast: 29/07/26 to 04/08/26. Timezone: UTC-4.00