Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 13

Waning Crescent 0%

05:39

20:21

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

Sun - Rise: 05:45, Set: 20:29, Transit: 13:07. Moon - Rise: 05:39, Set: 20:21. Civil Dark: 21:01 - 05:13. Nautical Dark: 21:41 - 04:34. Astro Dark: 22:26 - 03:48

Total Clouds (% Sky Obscured)

46
56
60
35
0
0
0
0
0
0
0
33
2
0
13
4
1
4
0
0
12
17
16
0

Low Clouds (% Sky Obscured)

46
9
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
12
17
16
0

Medium Clouds (% Sky Obscured)

33
13
3
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
33
2
0
9
1
1
4
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 (%)

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

Chance of Frost

Temperature (°C)

29
29
28
27
24
23
22
21
21
20
20
19
19
19
20
23
25
27
29
31
32
34
34
34

Feels Like (°C)

28
28
29
27
23
24
22
22
22
22
21
21
22
21
23
24
26
28
30
32
34
35
35
35

Dew Point (°C)

16
17
16
17
14
13
12
12
13
13
13
13
14
14
16
16
17
16
16
17
17
18
18
18

Relative Humidity (%)

46
48
48
54
54
55
54
57
61
65
66
68
71
75
76
67
60
52
46
43
40
38
37
37

Pressure (mb)

1020
1020
1021
1021
1021
1022
1022
1021
1021
1021
1020
1021
1021
1020
1021
1021
1021
1020
1020
1019
1019
1018
1017
1016

Ozone (du)

332
333
335
336
339
338
339
338
336
335
336
332
331
327
325
322
320
317
314
312
310
310
309
308

Tuesday 14

New Moon 3%

06:59

21:06

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

Sun - Rise: 05:46, Set: 20:29, Transit: 13:07. Moon - Rise: 06:59, Set: 21:06. Civil Dark: 21:01 - 05:14. Nautical Dark: 21:40 - 04:34. Astro Dark: 22:25 - 03:50

Total Clouds (% Sky Obscured)

6
0
2
1
2
61
44
43
64
53
74
73
70
56
93
71
5
21
26
59
35
54
98
100

Low Clouds (% Sky Obscured)

6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
34
0
0

Medium 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
27
22

High Clouds (% Sky Obscured)

0
0
2
1
2
41
32
33
52
46
64
62
65
45
85
69
5
21
26
59
35
50
96
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
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)

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

Chance of Frost

Temperature (°C)

34
34
32
30
28
26
26
25
25
24
24
23
22
22
23
26
28
30
32
34
36
37
38
37

Feels Like (°C)

35
35
34
32
30
28
27
27
27
26
25
25
25
25
27
28
29
33
34
35
36
37
37
37

Dew Point (°C)

18
19
19
19
18
17
17
18
17
16
16
16
16
17
18
18
19
19
20
20
20
20
20
19

Relative Humidity (%)

39
42
46
51
55
56
59
63
62
61
61
64
68
72
70
63
56
51
46
42
38
36
36
35

Pressure (mb)

1016
1015
1015
1015
1015
1015
1014
1014
1014
1014
1013
1013
1013
1013
1014
1014
1014
1014
1013
1013
1012
1012
1011
1011

Ozone (du)

307
306
306
305
305
304
303
301
301
301
302
303
304
304
305
305
304
305
306
307
308
308
308
308

Wednesday 15

Waxing Crescent 8%

08:17

21:41

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 OK
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 05:47, Set: 20:28, Transit: 13:07. Moon - Rise: 08:17, Set: 21:41. Civil Dark: 21:00 - 05:15. Nautical Dark: 21:40 - 04:36. Astro Dark: 22:24 - 03:51

Total Clouds (% Sky Obscured)

28
70
60
39
87
100
51
57
86
90
90
72
90
95
54
48
100
89
100
100
73
100
98
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
26
39
52
33
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

23
27
23
19
21
21
18
20
9
14
14
20
37
41
9
14
26
24
3
53
55
47
53
34

High Clouds (% Sky Obscured)

7
50
40
10
77
100
13
22
77
79
79
60
80
55
38
48
100
88
100
100
58
100
51
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
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
18
3
1
11
7
24
2
18
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)

11
10
9
9
8
8
7
3
4
2
1
2
2
3
3
4
5
6
7
9
10
12
11
10

Chance of Frost

Temperature (°C)

37
37
36
34
32
30
29
28
27
26
25
25
24
23
23
25
28
30
31
33
34
35
35
35

Feels Like (°C)

37
39
36
34
33
31
30
32
32
29
29
28
27
26
26
29
30
30
31
33
34
35
35
35

Dew Point (°C)

19
18
20
19
18
19
19
20
21
20
21
20
20
19
18
18
17
17
18
18
18
19
18
19

Relative Humidity (%)

33
32
37
41
45
53
55
60
68
71
76
76
78
78
73
62
51
47
43
40
39
38
37
37

Pressure (mb)

1010
1010
1010
1010
1011
1012
1012
1013
1013
1013
1013
1013
1013
1014
1014
1014
1014
1014
1013
1013
1012
1012
1011
1010

Ozone (du)

308
309
309
309
311
311
311
311
311
312
311
309
308
307
308
307
308
309
309
309
310
309
308
308

Thursday 16

Waxing Crescent 16%

09:30

22:11

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
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 05:47, Set: 20:28, Transit: 13:07. Moon - Rise: 09:30, Set: 22:11. Civil Dark: 20:59 - 05:16. Nautical Dark: 21:39 - 04:37. Astro Dark: 22:23 - 03:52

Total Clouds (% Sky Obscured)

97
85
99
100
100
100
100
96
100
100
100
100
100
100
100
91
99
99
99
100
91
80
65
50

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
11
23
35

Medium Clouds (% Sky Obscured)

41
45
48
64
32
35
69
81
82
73
18
8
35
22
2
27
51
74
53
34
16
11
4
0

High Clouds (% Sky Obscured)

78
73
98
100
100
100
99
33
24
47
100
100
64
100
100
68
71
57
68
84
45
37
24
11

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 (%)

8
12
15
19
13
8
22
17
11
9
7
1
3
2
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)

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

Chance of Frost

Temperature (°C)

36
35
34
32
31
29
27
26
25
25
24
23
22
22
23
24
25
26
28
29
30
31
31
31

Feels Like (°C)

36
35
34
33
29
27
25
25
24
24
23
22
21
21
21
22
24
24
25
26
27
29
30
30

Dew Point (°C)

20
19
18
18
16
13
11
11
11
10
10
10
10
11
11
11
11
11
9
8
8
8
7
6

Relative Humidity (%)

40
40
40
43
41
37
36
38
39
38
41
44
45
47
47
46
41
37
30
27
25
24
22
20

Pressure (mb)

1010
1010
1010
1010
1011
1012
1013
1013
1013
1014
1014
1014
1014
1015
1016
1016
1017
1017
1017
1017
1017
1016
1016
1016

Ozone (du)

309
311
312
312
312
312
313
314
315
315
313
314
316
317
318
318
318
318
318
319
320
319
319
318

Friday 17

Waxing Crescent 25%

10:39

22:35

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
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 05:48, Set: 20:27, Transit: 13:07. Moon - Rise: 10:39, Set: 22:35. Civil Dark: 20:58 - 05:17. Nautical Dark: 21:38 - 04:38. Astro Dark: 22:22 - 03:53

Total Clouds (% Sky Obscured)

52
51
49
59
70
81
85
66
65
69
68
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

25
15
5
3
1
0
0
0
0
0
0
0
0
0
1
2
3
16
41
51
54
54
50
43

Medium Clouds (% Sky Obscured)

6
11
16
12
10
12
6
3
2
2
4
2
5
10
16
32
47
54
70
80
88
87
90
92

High Clouds (% Sky Obscured)

14
15
14
31
50
69
81
66
65
68
62
100
100
100
100
100
100
100
100
100
100
100
100
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
8
8
8
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
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
8
12
13
39
55
67
83
93
95

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

8
6
4
3
3
3
4
4
4
3
4
3
3
3
3
4
4
4
5
4
4
4
4
4

Chance of Frost

Temperature (°C)

31
31
30
28
27
26
25
24
23
22
22
21
21
22
22
23
24
25
26
26
26
25
26
26

Feels Like (°C)

30
30
30
29
28
27
25
24
24
23
22
23
20
21
22
22
22
23
23
25
26
28
26
27

Dew Point (°C)

7
7
8
9
9
10
11
11
10
10
10
10
10
10
10
10
10
11
11
15
18
22
23
24

Relative Humidity (%)

21
22
25
29
32
37
40
43
43
45
46
47
47
47
45
42
40
40
38
49
62
79
84
90

Pressure (mb)

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

Ozone (du)

318
317
318
317
314
314
312
313
314
314
313
314
313
313
313
312
312
311
310
311
311
311
311
310

Saturday 18

Waxing Crescent 25%

11:46

22:58

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
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 05:49, Set: 20:26, Transit: 13:07. Moon - Rise: 11:46, Set: 22:58. Civil Dark: 20:58 - 05:18. Nautical Dark: 21:37 - 04:39. Astro Dark: 22:21 - 03:55

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
98

Low Clouds (% Sky Obscured)

45
46
48
50
52
54
55
55
55
54
54
53
66
78
91
89
87
85
77
69
61
62
64
65

Medium Clouds (% Sky Obscured)

89
88
87
90
91
91
86
74
60
62
72
88
76
58
47
54
57
59
57
56
50
43
37
28

High Clouds (% Sky Obscured)

100
100
99
99
98
96
90
76
70
71
74
76
84
92
100
100
99
99
100
100
100
100
98
97

ISS Passover

Visibility (miles)

9
9
8
8
8
8
8
6
3
1
4
6
9
7
6
4
6
8
9
8
6
5
6
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

Light Rain
Very Light Rain
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
Light Rain
Light Rain

Precipitation Probability (%)

87
74
59
59
57
53
62
57
36
63
81
95
95
95
95
95
95
78
79
81
85
95
95
95

Precipitation Amount (mm)

0.5
0.3
0
0
0
0
0
0
0
0
0.2
0.3
1.1
1.8
2.4
1.7
1
0.4
0.4
0.4
0.5
0.6
0.8
1

Wind Speed/Direction (mph)

5
5
5
5
4
4
4
4
5
6
6
7
8
6
5
4
5
6
7
6
6
6
6
6

Chance of Frost

Temperature (°C)

27
26
26
25
25
24
24
23
23
23
23
23
23
23
23
23
24
25
25
26
27
27
27
26

Feels Like (°C)

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

Dew Point (°C)

26
25
25
25
24
24
23
23
23
23
22
22
22
22
22
22
22
22
22
23
23
24
21
18

Relative Humidity (%)

94
95
97
98
97
97
98
97
97
98
95
95
94
95
95
95
91
87
83
82
81
81
69
59

Pressure (mb)

1012
1012
1012
1011
1011
1011
1010
1009
1009
1008
1008
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007

Ozone (du)

310
309
308
307
308
309
311
311
311
311
312
312
313
313
313
313
314
315
316
317
319
320
322
324

Sunday 19

Waxing Crescent 35%

12:51

23:21

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
13 Bad

Sun - Rise: 05:50, Set: 20:26, Transit: 13:07. Moon - Rise: 12:51, Set: 23:21. Civil Dark: 20:57 - 05:19. Nautical Dark: 21:36 - 04:40. Astro Dark: 22:20 - 03:56

Total Clouds (% Sky Obscured)

97
94
89
76
63
53
47
41
40
90
95
100
100
100
100
100
95
91
80
80
81

Low Clouds (% Sky Obscured)

61
57
53
57
61
53
47
41
40
24
54
71
77
78
80
79
82
80
80
76
81

Medium Clouds (% Sky Obscured)

12
8
2
7
12
14
16
15
14
11
13
10
10
8
8
10
28
41
37
32
31

High Clouds (% Sky Obscured)

95
93
79
55
37
19
23
31
25
50
70
80
75
75
76
76
76
67
72
69
78

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

Fog (%)

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

Precipitation Probability (%)

95
95
95
87
65
17
18
18
18
17
14
6
21
22
16
39
50
58
62
70
81

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

26
25
25
24
24
23
23
23
22
22
22
22
21
22
22
22
23
23
23
23
24

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

50
52
52
54
55
57
58
60
61
62
64
67
69
66
64
62
54
48
42
37
33

Pressure (mb)

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

Ozone (du)

327
328
329
331
332
332
333
334
335
335
335
335
334
334
334
333
334
334
334
334
334

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

Generated: 13/07/26 17:22:13. Forecast: 13/07/26 to 19/07/26. Timezone: UTC-4.00