Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 17

Waxing Crescent 29%

12:45

22:10

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
12 Bad

Sun - Rise: 06:16, Set: 19:54, Transit: 13:05. Moon - Rise: 12:45, Set: 22:10. Civil Dark: 20:23 - 05:48. Nautical Dark: 20:57 - 05:13. Astro Dark: 21:34 - 04:37

Total Clouds (% Sky Obscured)

87
83
87
96
75
90
100
100
100
100
77
99
100
100
91
67
62
62
53
59
81
49
52
54

Low Clouds (% Sky Obscured)

74
81
57
68
65
53
0
30
20
41
32
28
22
27
37
38
58
62
53
59
79
49
52
54

Medium Clouds (% Sky Obscured)

2
4
3
15
0
3
13
24
25
23
20
26
33
30
23
27
40
44
26
30
29
22
25
25

High Clouds (% Sky Obscured)

5
61
36
41
64
47
100
100
100
100
70
98
100
100
89
67
62
62
2
4
29
0
13
2

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

Precipitation Probability (%)

0
0
5
6
21
35
20
51
68
60
47
3
0
4
11
24
69
61
34
28
71
60
40
52

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.4
0.8
0.5
0.6
0
0
0
0
0
0.5
0.3
0
0
0.5
0.3
0
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

28
29
29
31
31
31
30
29
28
29
28
28
26
25
25
25
27
26
26
26
26
26
29
29

Dew Point (°C)

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

Relative Humidity (%)

57
52
52
54
57
59
63
70
73
76
78
80
82
79
80
79
78
78
73
63
54
46
42
40

Pressure (mb)

1010
1010
1010
1009
1009
1009
1009
1010
1010
1011
1011
1011
1011
1011
1011
1011
1011
1011
1012
1012
1012
1012
1012
1012

Ozone (du)

309
307
307
305
304
304
304
305
305
307
308
309
309
309
310
311
312
312
311
312
311
311
311
310

Tuesday 18

Waxing Crescent 39%

No Rise

22:38

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

Sun - Rise: 06:17, Set: 19:53, Transit: 13:05. Moon - Rise: No Rise, Set: 22:38. Civil Dark: 20:21 - 05:49. Nautical Dark: 20:56 - 05:15. Astro Dark: 21:32 - 04:38

Total Clouds (% Sky Obscured)

50
49
44
40
36
37
35
50
54
75
47
55
47
46
39
46
47
41
37
20
4
14
15
30

Low Clouds (% Sky Obscured)

50
49
44
40
36
37
35
50
54
60
47
42
39
39
39
40
38
37
37
20
4
14
15
30

Medium Clouds (% Sky Obscured)

21
18
16
14
11
12
8
18
22
21
20
17
29
15
0
0
27
6
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
1
2
21
4
17
2
3
2
6
1
1
1
0
0
0
0
2

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

Light Rain
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 (%)

55
25
9
4
3
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.4
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

30
30
30
31
31
31
32
30
30
29
27
27
26
25
25
24
23
23
24
26
27
29
30
31

Dew Point (°C)

12
12
12
12
13
13
14
15
15
15
15
14
14
13
13
13
13
13
13
13
14
14
14
13

Relative Humidity (%)

38
35
33
34
35
36
39
44
50
52
52
52
54
54
54
56
58
60
60
55
50
45
40
35

Pressure (mb)

1012
1012
1011
1011
1011
1011
1011
1012
1013
1013
1013
1013
1013
1012
1012
1012
1012
1013
1013
1013
1013
1013
1013
1013

Ozone (du)

312
311
309
307
307
305
305
304
305
304
303
300
299
299
299
300
302
303
302
302
302
302
303
303

Wednesday 19

First Quarter 48%

13:49

23:11

13 Bad
14 OK
15 OK
16 Bad
17 Bad
18 OK
19 OK
20 Good
21 OK
22 OK
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
12 Bad

Sun - Rise: 06:18, Set: 19:51, Transit: 13:04. Moon - Rise: 13:49, Set: 23:11. Civil Dark: 20:20 - 05:50. Nautical Dark: 20:54 - 05:16. Astro Dark: 21:31 - 04:39

Total Clouds (% Sky Obscured)

30
8
25
32
49
29
30
12
48
44
36
51
58
59
57
63
77
99
70
85
85
89
91
94

Low Clouds (% Sky Obscured)

30
8
0
0
25
0
0
0
0
0
0
0
1
0
3
34
41
37
47
47
43
40
36
32

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
2
6
39
32
16
31
50
50
48
50
55
52
53
34
54
39
42
44

High Clouds (% Sky Obscured)

2
0
24
32
36
29
30
8
48
44
20
28
0
0
0
23
2
41
17
60
54
56
66
76

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
2
8
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
Light Rain
Very Light Rain
Light Rain
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
9
26
47
71
52
52
29
27
29

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

8
8
8
9
9
8
5
2
1
2
3
3
4
3
3
3
3
3
3
3
1
2
2
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

31
31
31
30
30
29
29
28
29
26
25
26
24
26
26
26
26
26
24
25
26
28
29
29

Dew Point (°C)

12
11
10
12
14
14
15
14
13
13
12
13
14
15
15
15
15
15
15
19
18
20
19
18

Relative Humidity (%)

32
29
27
30
34
37
41
44
45
45
47
50
55
60
61
62
62
62
61
79
72
72
66
56

Pressure (mb)

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

Ozone (du)

304
303
302
301
302
301
301
301
300
299
300
298
297
296
296
298
299
300
301
302
301
302
302
302

Thursday 20

Waxing Gibbous 58%

14:52

23:50

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
12 Bad

Sun - Rise: 06:19, Set: 19:50, Transit: 13:04. Moon - Rise: 14:52, Set: 23:50. Civil Dark: 20:18 - 05:51. Nautical Dark: 20:52 - 05:17. Astro Dark: 21:29 - 04:41

Total Clouds (% Sky Obscured)

95
97
99
100
100
77
96
81
75
84
66
77
100
100
59
99
97
95
93
96
98
100
100
99

Low Clouds (% Sky Obscured)

27
35
43
52
46
41
36
45
54
64
66
77
79
71
59
61
65
66
78
71
70
70
64
55

Medium Clouds (% Sky Obscured)

82
89
95
100
61
60
94
70
60
55
51
44
33
27
21
18
46
55
45
40
40
35
35
33

High Clouds (% Sky Obscured)

67
89
94
100
100
65
72
76
75
72
66
77
100
98
59
96
89
54
75
83
92
100
99
96

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
5
9
9
9
9
9
9
6
2
2
1
2
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
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
None
None
Very Light Rain
Light Rain
Light Rain
Moderate Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

26
29
45
57
75
78
79
78
80
79
94
95
95
84
66
43
38
39
65
95
95
95
90
77

Precipitation Amount (mm)

0
0
0
0
0.3
0.3
0.3
0.3
0.4
0.3
0.6
0.6
0.8
0.6
0.3
0.2
0
0
0.3
0.9
2.2
2.5
0.3
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

16
15
15
14
13
13
14
15
16
17
17
19
19
18
18
18
18
18
19
21
21
22
23
23

Relative Humidity (%)

46
41
43
40
40
41
47
53
58
61
65
74
76
74
76
78
76
78
83
92
94
97
97
95

Pressure (mb)

1015
1014
1014
1014
1014
1014
1014
1014
1014
1015
1015
1015
1015
1015
1015
1015
1014
1014
1015
1015
1015
1015
1016
1016

Ozone (du)

301
301
300
300
297
302
303
303
302
303
304
303
303
302
301
302
300
300
300
301
301
298
295
298

Friday 21

Waxing Gibbous 68%

15:50

00:36

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

Sun - Rise: 06:20, Set: 19:48, Transit: 13:04. Moon - Rise: 15:50, Set: 00:36. Civil Dark: 20:17 - 05:52. Nautical Dark: 20:51 - 05:18. Astro Dark: 21:27 - 04:42

Total Clouds (% Sky Obscured)

99
82
62
41
58
76
91
61
32
47
44
41
43
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

46
45
41
34
37
41
45
30
17
5
5
4
4
10
21
28
36
47
56
58
58
57
46
34

Medium Clouds (% Sky Obscured)

2
38
47
0
0
1
1
1
0
0
0
0
0
1
1
2
9
17
21
23
26
28
28
28

High Clouds (% Sky Obscured)

74
53
42
14
22
42
63
45
27
35
32
33
30
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

6
4
2
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

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

Precipitation Probability (%)

82
80
54
21
13
7
3
2
1
0
0
0
0
3
4
5
8
9
9
10
8
4
6
5

Precipitation Amount (mm)

0.4
0.7
0.3
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)

9
7
7
7
6
5
5
4
3
3
3
3
3
3
3
3
3
4
4
4
4
5
6
6

Chance of Frost

Temperature (°C)

24
26
26
26
27
27
26
25
24
23
22
22
21
21
19
19
19
19
19
20
21
22
23
24

Feels Like (°C)

23
25
26
26
27
26
26
25
26
25
23
23
22
22
20
20
19
19
19
20
21
21
21
21

Dew Point (°C)

23
25
25
26
26
25
24
23
22
21
20
20
19
19
17
16
16
16
16
15
15
16
16
16

Relative Humidity (%)

94
94
95
97
94
92
91
90
89
88
87
88
88
88
85
85
84
81
78
75
70
66
62
60

Pressure (mb)

1016
1015
1015
1015
1014
1014
1014
1015
1015
1015
1015
1015
1015
1015
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016

Ozone (du)

299
298
299
302
300
299
300
299
299
299
300
302
302
300
301
301
302
303
304
304
304
303
302
301

Saturday 22

Waxing Gibbous 77%

16:42

01:29

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
12 Bad

Sun - Rise: 06:21, Set: 19:47, Transit: 13:04. Moon - Rise: 16:42, Set: 01:29. Civil Dark: 20:15 - 05:53. Nautical Dark: 20:49 - 05:19. Astro Dark: 21:25 - 04:43

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
99
98
97
98
99
100
100
100
100
100
100
100
89
78
65
71
75

Low Clouds (% Sky Obscured)

21
40
61
80
84
89
93
88
83
77
76
74
77
84
87
84
86
88
90
75
60
45
50
57

Medium Clouds (% Sky Obscured)

25
25
24
27
21
19
18
18
18
30
39
53
64
70
76
83
77
70
64
68
69
65
71
74

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
85
68
52
70
84
100
100
100
100
100
100
100
67
33
5
15
20

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

3
17
23
28
74
95
95
77
65
39
59
62
61
67
66
57
69
72
67
63
59
58
54
51

Precipitation Amount (mm)

0
0
0
0
0
0.2
0.3
0.3
0
0
0
0
0
0.3
0.3
0
0.3
0.4
0.2
0.2
0.2
0.2
0.2
0

Wind Speed/Direction (mph)

5
5
5
5
5
5
5
5
4
4
3
3
2
2
1
1
1
1
1
1
1
3
4
4

Chance of Frost

Temperature (°C)

25
26
26
26
26
25
25
24
23
23
23
22
22
22
22
22
22
22
22
22
22
23
24
25

Feels Like (°C)

22
22
27
27
26
26
26
26
24
25
25
25
25
24
24
24
25
25
25
25
26
26
27
27

Dew Point (°C)

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

Relative Humidity (%)

57
54
55
56
56
59
63
66
71
74
79
80
84
87
89
92
94
94
94
94
91
88
85
85

Pressure (mb)

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

Ozone (du)

301
300
300
299
298
297
297
296
296
296
296
295
295
295
295
296
297
298
300
301
300
300
299
299

Sunday 23

Waxing Gibbous 84%

17:27

02:28

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 Good
07 Good

Sun - Rise: 06:22, Set: 19:45, Transit: 13:03. Moon - Rise: 17:27, Set: 02:28. Civil Dark: 20:14 - 05:54. Nautical Dark: 20:48 - 05:20. Astro Dark: 21:23 - 04:45

Total Clouds (% Sky Obscured)

79
77
74
73
72
70
69
52
36
19
31
42
54
37
24
12
9
7
1

Low Clouds (% Sky Obscured)

63
62
61
60
61
62
63
51
36
19
30
32
35
27
20
12
9
7
0

Medium Clouds (% Sky Obscured)

72
73
70
68
55
43
30
20
10
0
5
11
14
9
4
0
0
0
0

High Clouds (% Sky Obscured)

45
50
45
45
24
11
1
0
0
0
3
7
12
9
5
0
0
1
1

ISS Passover

Visibility (miles)

7
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

Precipitation Type

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

Precipitation Probability (%)

47
47
45
38
53
58
57
60
66
71
61
42
2
5
5
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0.2
0
0.2
0.3
0.4
0.3
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

3
3
2
3
5
4
3
3
2
2
3
3
3
3
3
3
3
3
4

Chance of Frost

Temperature (°C)

26
27
27
27
28
26
25
24
23
22
21
21
20
20
20
20
19
20
20

Feels Like (°C)

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

Dew Point (°C)

23
24
24
24
24
23
22
20
20
20
19
19
19
19
18
18
18
18
17

Relative Humidity (%)

84
83
82
80
78
79
82
82
84
85
88
89
91
92
91
92
92
86
82

Pressure (mb)

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

Ozone (du)

299
298
299
300
300
302
304
305
307
309
311
311
311
312
311
311
311
311
311

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

Generated: 17/08/26 13:04:57. Forecast: 17/08/26 to 23/08/26. Timezone: UTC-4.00