Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 13

Waning Crescent 20%

04:47

14:51

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

Sun - Rise: 06:04, Set: 19:56, Transit: 13:00. Moon - Rise: 04:47, Set: 14:51. Civil Dark: 20:33 - 05:27. Nautical Dark: 21:18 - 04:42. Astro Dark: 22:10 - 03:46

Total Clouds (% Sky Obscured)

18
16
22
44
55
50
52
63
84
75
39
4
5
5
1
0
0
11
0
8
7
10
14
7

Low Clouds (% Sky Obscured)

18
16
22
44
37
0
52
63
26
16
7
0
0
0
0
0
0
0
0
8
7
10
14
7

Medium Clouds (% Sky Obscured)

18
14
21
7
13
13
18
20
23
13
9
4
5
5
1
0
0
5
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
2
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
5
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
1
3
10
11
30
30
20
5
1
1
1
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
2
4
3
3
4
5
6
6
6
6
7
10
10
8
7
6
5
6
6
6
5
5

Chance of Frost

Temperature (°C)

2
2
3
3
5
7
9
10
11
12
13
13
13
11
10
9
8
7
7
6
5
5
5
4

Feels Like (°C)

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

Dew Point (°C)

1
1
1
2
3
4
4
4
4
3
3
2
2
5
6
6
5
4
4
4
3
3
3
2

Relative Humidity (%)

93
93
91
91
85
81
73
65
58
53
50
48
48
67
74
82
81
79
81
83
86
88
88
86

Pressure (mb)

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

Ozone (du)

485
486
490
495
500
500
497
493
483
478
477
478
481
482
480
473
467
458
450
444
436
430
426
421

Tuesday 14

Waning Crescent 12%

04:59

16:14

04 Good
05 Good
06 OK
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
02 Bad
03 Bad

Sun - Rise: 06:02, Set: 19:58, Transit: 13:00. Moon - Rise: 04:59, Set: 16:14. Civil Dark: 20:35 - 05:25. Nautical Dark: 21:21 - 04:39. Astro Dark: 22:13 - 03:43

Total Clouds (% Sky Obscured)

4
16
29
45
36
36
49
57
74
76
92
96
100
87
85
96
91
83
97
100
100
100
100
100

Low Clouds (% Sky Obscured)

4
0
0
0
0
0
0
0
32
48
48
65
83
79
81
92
78
62
73
70
72
78
72
49

Medium Clouds (% Sky Obscured)

0
11
16
26
21
20
33
37
32
41
41
52
61
49
51
48
35
33
65
73
66
73
96
100

High Clouds (% Sky Obscured)

0
0
0
0
0
0
3
3
40
50
80
64
36
21
4
35
42
34
77
85
98
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
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
2
8
10
2
2
7

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)

5
5
5
5
6
7
9
10
11
11
11
11
12
11
9
8
8
9
10
9
11
11
11
11

Chance of Frost

Temperature (°C)

4
4
3
4
6
8
10
11
13
13
14
15
15
14
13
12
12
11
11
10
11
10
10
10

Feels Like (°C)

3
3
3
3
6
7
9
10
11
11
13
12
11
11
11
11
9
8
8
7
7
6
7
6

Dew Point (°C)

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

Relative Humidity (%)

86
86
91
91
83
78
72
65
57
55
54
53
56
64
71
77
77
79
70
74
68
71
73
74

Pressure (mb)

1016
1016
1017
1017
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1019
1019
1019
1018
1018
1018
1018

Ozone (du)

415
408
401
396
391
389
383
380
378
373
371
367
363
360
360
359
358
356
354
352
351
351
350
350

Wednesday 15

Waning Crescent 6%

05:09

17:39

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 OK
22 OK
23 OK
00 OK
01 Bad
02 Bad
03 Bad

Sun - Rise: 05:59, Set: 20:00, Transit: 13:00. Moon - Rise: 05:09, Set: 17:39. Civil Dark: 20:37 - 05:22. Nautical Dark: 21:23 - 04:36. Astro Dark: 22:16 - 03:40

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
98
100
100
100
100
92
100
100
98
49
40
13
39
40
47
61
74

Low Clouds (% Sky Obscured)

73
90
87
93
90
89
86
91
100
100
100
60
30
57
67
67
43
40
13
36
40
38
39
37

Medium Clouds (% Sky Obscured)

92
94
91
93
96
100
98
78
33
26
25
25
20
20
23
23
7
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
100
100
100
91
92
100
89
97
100
100
99
60
3
100
1
0
0
0
0
0
9
25
41

ISS Passover

Visibility (miles)

9
9
9
9
4
4
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
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

27
52
64
76
95
76
36
23
24
23
20
7
10
20
32
31
10
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0.4
0.4
0.9
0.4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
6
6
6
7
8
8
9
10
12
11
11
12
11
11
10
10
10
8
8
7
6
6
6

Dew Point (°C)

6
7
8
9
10
11
11
12
12
13
13
13
13
13
13
12
10
9
9
9
8
8
7
7

Relative Humidity (%)

74
84
91
95
96
98
96
95
90
89
89
87
87
87
86
83
80
86
93
95
95
93
91
94

Pressure (mb)

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

Ozone (du)

350
349
349
349
346
345
344
344
343
344
346
351
356
358
359
365
385
390
397
390
386
386
386
387

Thursday 16

Waning Crescent 2%

05:20

19:07

04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 OK
10 OK
11 OK
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

Sun - Rise: 05:57, Set: 20:01, Transit: 12:59. Moon - Rise: 05:20, Set: 19:07. Civil Dark: 20:39 - 05:20. Nautical Dark: 21:25 - 04:33. Astro Dark: 22:19 - 03:36

Total Clouds (% Sky Obscured)

86
96
92
70
60
40
35
43
82
53
50
57
66
99
100
100
100
100
100
100
99
94
86
82

Low Clouds (% Sky Obscured)

41
47
43
41
47
40
35
31
24
29
32
37
44
51
57
45
29
10
15
21
26
27
29
30

Medium Clouds (% Sky Obscured)

15
27
40
27
13
0
9
20
79
24
24
21
26
31
35
35
85
100
99
98
96
82
65
54

High Clouds (% Sky Obscured)

34
30
23
16
9
0
0
0
10
23
43
57
66
95
100
100
100
100
99
97
96
77
58
40

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

Chance of Frost

Temperature (°C)

7
7
8
8
9
11
12
13
14
15
16
16
16
16
15
14
13
12
11
11
10
10
9
9

Feels Like (°C)

5
5
5
5
7
9
10
11
12
11
13
14
15
15
13
12
10
10
9
8
8
8
7
6

Dew Point (°C)

6
6
7
7
7
8
7
6
6
6
6
7
7
7
8
9
8
8
7
7
6
6
6
5

Relative Humidity (%)

94
96
91
91
87
79
69
62
57
55
54
53
53
54
64
73
72
75
77
78
77
77
78
80

Pressure (mb)

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

Ozone (du)

388
390
390
388
386
388
389
390
389
387
384
380
378
374
373
371
368
368
368
368
367
366
365
365

Friday 17

New Moon 0%

05:32

20:39

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
02 Bad
03 Bad

Sun - Rise: 05:55, Set: 20:03, Transit: 12:59. Moon - Rise: 05:32, Set: 20:39. Civil Dark: 20:40 - 05:18. Nautical Dark: 21:27 - 04:31. Astro Dark: 22:22 - 03:33

Total Clouds (% Sky Obscured)

75
69
65
69
70
74
82
88
95
94
93
92
95
97
99
97
98
99
91
84
76
83
90
97

Low Clouds (% Sky Obscured)

20
10
0
2
4
5
33
44
58
53
50
49
48
44
41
42
52
62
41
21
0
0
0
15

Medium Clouds (% Sky Obscured)

56
67
65
69
61
74
80
81
81
83
83
87
73
81
48
52
71
92
88
84
76
76
73
73

High Clouds (% Sky Obscured)

37
34
37
49
56
60
65
76
85
69
47
25
51
71
93
91
94
97
88
79
70
73
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
1
2
2
3
2
2
4
4
0
2
6
9
11
13
14

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

Chance of Frost

Temperature (°C)

8
8
8
8
10
11
13
13
14
15
16
16
17
16
16
15
14
13
12
12
11
10
10
10

Feels Like (°C)

6
6
6
6
8
9
10
10
12
13
13
14
14
14
14
13
12
12
11
11
10
10
8
8

Dew Point (°C)

5
6
6
6
8
9
9
9
9
9
9
9
9
9
10
10
10
9
9
8
8
8
8
8

Relative Humidity (%)

81
85
88
88
87
83
77
76
69
66
65
63
61
63
69
75
76
76
77
80
81
84
85
85

Pressure (mb)

1021
1021
1022
1022
1022
1022
1022
1022
1022
1021
1021
1021
1020
1020
1020
1020
1021
1021
1021
1021
1021
1021
1020
1020

Ozone (du)

366
364
362
362
362
362
362
362
361
360
360
362
364
366
366
364
363
362
362
362
362
362
363
363

Saturday 18

Waxing Crescent 2%

05:47

22:16

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
02 Bad
03 Bad

Sun - Rise: 05:53, Set: 20:05, Transit: 12:59. Moon - Rise: 05:47, Set: 22:16. Civil Dark: 20:42 - 05:15. Nautical Dark: 21:30 - 04:28. Astro Dark: 22:25 - 03:29

Total Clouds (% Sky Obscured)

98
99
100
96
92
87
90
94
99
99
99
100
100
100
100
98
97
95
92
90
90
83
71
60

Low Clouds (% Sky Obscured)

14
18
21
15
10
2
11
19
27
26
24
18
35
57
78
82
75
77
72
64
56
51
43
37

Medium Clouds (% Sky Obscured)

69
63
43
28
21
15
30
44
63
76
86
97
97
97
97
88
80
72
72
73
75
63
54
45

High Clouds (% Sky Obscured)

79
89
100
96
92
87
73
60
45
55
64
73
67
65
61
54
45
30
30
35
35
25
25
25

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 (%)

13
11
8
5
2
0
6
7
5
19
24
29
35
33
31
32
25
11
12
18
14
13
10
3

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
7
6
6
7
7
8
8
9
9
9
10
13
11
10
9
8
7
7
7
8
8
7
7

Chance of Frost

Temperature (°C)

10
9
9
9
11
13
14
16
17
18
18
18
18
16
15
14
13
12
11
11
10
10
9
9

Feels Like (°C)

7
8
8
8
7
8
10
11
12
13
17
17
17
15
15
14
11
11
10
10
10
9
7
6

Dew Point (°C)

8
7
8
7
8
9
10
11
11
12
12
12
12
12
11
10
9
9
8
7
7
7
6
5

Relative Humidity (%)

87
87
88
88
84
77
73
70
68
65
67
70
71
73
75
78
77
80
80
80
80
80
80
77

Pressure (mb)

1020
1020
1020
1020
1019
1019
1019
1019
1018
1018
1018
1017
1017
1017
1018
1018
1018
1019
1019
1019
1019
1020
1020
1020

Ozone (du)

363
365
367
369
372
375
379
381
383
385
385
384
384
382
380
377
376
375
374
374
375
375
375
376

Sunday 19

Waxing Crescent 6%

06:10

23:51

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 OK
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 05:50, Set: 20:07, Transit: 12:59. Moon - Rise: 06:10, Set: 23:51. Civil Dark: 20:44 - 05:13. Nautical Dark: 21:32 - 04:25. Astro Dark: 22:28 - 03:26

Total Clouds (% Sky Obscured)

52
50
47
55
64
74
78
80
82
72
68
61
52
40
22
37
45
57
56
55
53

Low Clouds (% Sky Obscured)

34
32
29
43
57
71
70
70
69
58
48
37
26
18
5
8
8
5
3
3
3

Medium Clouds (% Sky Obscured)

52
50
47
55
64
50
53
59
68
64
58
57
52
40
22
37
45
44
30
17
3

High Clouds (% Sky Obscured)

25
30
25
25
35
35
45
45
45
45
45
40
35
20
5
10
10
15
10
5
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

Fog (%)

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

Precipitation Probability (%)

7
11
2
7
13
0
3
3
0
3
4
4
12
14
1
6
7
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

Wind Speed/Direction (mph)

7
6
6
7
8
9
10
11
11
11
11
11
12
11
10
9
8
7
5
5
5

Chance of Frost

Temperature (°C)

8
8
8
8
9
10
11
12
13
14
14
14
13
12
12
11
10
9
8
8
7

Feels Like (°C)

6
6
6
5
6
7
8
8
9
9
12
11
11
11
11
11
7
6
6
6
5

Dew Point (°C)

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

Relative Humidity (%)

75
78
79
81
80
78
77
73
71
69
69
70
71
76
80
85
88
91
95
94
93

Pressure (mb)

1020
1020
1020
1020
1021
1021
1021
1021
1021
1021
1021
1021
1021
1022
1022
1022
1022
1022
1022
1022
1022

Ozone (du)

377
378
380
382
383
384
386
386
386
387
388
389
390
391
392
393
393
393
392
392
391

Forecast for Boston, Lincolnshire, United Kingdom (52.98,-0.02)

Generated: 13/04/26 04:08:49. Forecast: 13/04/26 to 19/04/26. Timezone: UTC+1.00