Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 1

Waning Gibbous 97%

23:11

05:25

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
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 04:39, Set: 21:16, Transit: 12:58. Moon - Rise: 23:11, Set: 05:25. Civil Dark: 22:04 - 03:50. Nautical Dark: 23:21 - 02:32. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

67
74
80
100
100
100
100
100
98
100
100
100
100
100
100
100
100
100
100
100
100
100
100
98

Low Clouds (% Sky Obscured)

61
58
60
82
84
99
79
91
83
97
94
96
84
83
70
83
71
83
67
61
85
76
80
60

Medium Clouds (% Sky Obscured)

67
74
80
100
24
97
23
99
80
100
100
100
100
100
100
100
90
95
90
100
100
100
100
96

High Clouds (% Sky Obscured)

67
74
80
100
100
92
44
97
78
100
100
100
100
100
100
100
100
98
100
100
100
41
46
66

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
7
7
8
2
2
2
0
2
3
6
9
9
9
7
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
Light Rain
Very Light Rain
None
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Moderate Rain
Moderate Rain
Light Rain
Very Light Rain
Light Rain
Very Light Rain
None
None
None
None
Very Light Rain
None

Precipitation Probability (%)

7
46
41
53
70
63
54
34
60
77
77
95
95
95
95
95
94
73
48
34
25
40
50
57

Precipitation Amount (mm)

0
0
0
0
0.4
0.3
0
0
0.3
0.7
0.4
1
3.9
2.5
0.9
0.3
0.4
0.3
0
0
0
0
0.2
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

15
15
15
15
15
16
15
15
15
16
15
15
13
13
13
14
13
14
14
14
13
14
14
15

Dew Point (°C)

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

Relative Humidity (%)

73
65
62
59
65
64
72
76
77
82
92
93
95
98
98
100
98
96
96
98
96
96
92
89

Pressure (mb)

1014
1014
1013
1012
1012
1011
1010
1010
1009
1008
1008
1007
1007
1006
1005
1004
1003
1003
1002
1002
1002
1002
1001
1001

Ozone (du)

342
344
343
344
344
345
345
345
346
345
346
347
349
348
351
354
358
362
365
370
372
374
376
378

Tuesday 2

Waning Gibbous 93%

23:52

06:29

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 OK
23 Good
00 Good
01 Good
02 OK
03 OK
04 OK
05 OK
06 Good
07 Bad
08 Bad
09 Bad

Sun - Rise: 04:38, Set: 21:17, Transit: 12:58. Moon - Rise: 23:52, Set: 06:29. Civil Dark: 22:06 - 03:49. Nautical Dark: 23:23 - 02:30. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

98
82
100
100
71
100
76
78
100
93
85
78
36
12
0
3
16
23
24
29
11
91
97
100

Low Clouds (% Sky Obscured)

54
60
48
65
64
54
48
20
5
17
44
32
32
0
0
3
16
23
24
29
11
34
65
47

Medium Clouds (% Sky Obscured)

78
75
48
40
40
43
45
53
98
85
64
65
21
11
0
0
0
0
0
0
0
6
0
1

High Clouds (% Sky Obscured)

95
69
100
80
40
100
40
50
99
77
66
62
9
1
0
0
0
3
0
0
0
44
85
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
3
3
9
9
4
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

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

Precipitation Probability (%)

62
59
62
64
59
57
63
76
55
41
9
0
0
0
0
0
0
0
0
0
0
0
0
18

Precipitation Amount (mm)

0.2
0.2
0.2
0.2
0
0
0
0.4
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

16
18
18
19
18
19
19
18
18
17
16
15
13
12
12
11
11
11
10
10
11
13
14
15

Feels Like (°C)

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

Dew Point (°C)

14
14
14
13
14
14
14
15
15
15
14
13
12
12
11
11
10
10
10
10
11
12
12
11

Relative Humidity (%)

90
81
75
65
78
76
75
80
83
85
87
90
93
95
95
96
95
96
98
98
96
95
86
77

Pressure (mb)

1002
1002
1002
1001
1001
1002
1002
1002
1002
1003
1003
1004
1004
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005

Ozone (du)

381
382
385
391
395
390
394
395
398
397
397
397
399
399
389
382
375
374
375
375
374
371
369
367

Wednesday 3

Waning Gibbous 88%

00:22

07:41

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
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 04:37, Set: 21:18, Transit: 12:58. Moon - Rise: 00:22, Set: 07:41. Civil Dark: 22:07 - 03:48. Nautical Dark: 23:26 - 02:28. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
99
100
100
99
78
66
91
58
48
55
65
56
76
100
100
97
77
71
50
72
80
88

Low Clouds (% Sky Obscured)

57
50
62
100
100
74
55
57
34
41
30
15
34
40
56
46
65
64
55
53
48
64
64
64

Medium Clouds (% Sky Obscured)

60
83
92
100
94
48
24
11
88
24
18
16
25
11
25
100
32
39
21
13
3
12
71
32

High Clouds (% Sky Obscured)

100
100
92
50
0
3
3
0
0
0
0
0
3
3
20
100
100
75
37
15
3
3
2
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
6
6
9
9
9
9
9
9
9
9
9
9
9
9
9
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
Light Rain
None
Very Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
Light Rain
None
None
None
None
None
None
None
None

Precipitation Probability (%)

33
30
21
49
95
59
63
94
66
50
35
23
10
21
23
54
33
29
24
5
1
22
37
31

Precipitation Amount (mm)

0
0
0
0
1.5
0
0.2
0.6
0.2
0
0
0
0
0
0
0.4
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

12
12
12
12
12
14
15
15
15
15
14
14
13
12
12
11
11
11
11
11
10
11
11
11

Relative Humidity (%)

73
74
79
83
80
93
92
93
88
89
89
92
92
93
93
93
93
93
93
93
90
89
82
84

Pressure (mb)

1004
1003
1003
1002
1001
1000
998
997
997
996
996
996
996
996
995
995
995
994
994
994
994
994
994
994

Ozone (du)

363
363
364
370
380
391
395
394
395
398
400
399
398
397
399
400
400
399
399
401
400
399
399
402

Thursday 4

Waning Gibbous 81%

00:43

08:57

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
04 Bad
05 Bad
06 Good
07 OK
08 OK
09 Bad

Sun - Rise: 04:37, Set: 21:19, Transit: 12:58. Moon - Rise: 00:43, Set: 08:57. Civil Dark: 22:08 - 03:47. Nautical Dark: 23:28 - 02:26. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

87
84
82
82
81
75
85
62
80
79
78
78
83
88
78
83
60
59
42
51
13
14
33
72

Low Clouds (% Sky Obscured)

63
58
55
60
63
62
66
51
65
60
54
45
40
40
41
42
40
35
28
22
12
14
33
47

Medium Clouds (% Sky Obscured)

60
57
26
25
26
20
47
28
78
79
71
77
83
84
37
33
36
34
24
16
2
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
1
0
0
0
15
12
25
24
22
18
28
5
9
3
2
0
0
0
0

ISS Passover

Visibility (miles)

9
9
4
8
5
5
5
5
4
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
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

35
58
67
73
77
72
78
80
75
57
47
34
29
18
0
0
0
0
1
1
0
3
9
4

Precipitation Amount (mm)

0
0.3
0.3
0.4
0.4
0.4
0.5
0.5
0.4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
83
81
80
77
82
79
84
87
92
92
90
93
93
93
93
93
93
93
88
85
85
75
66

Pressure (mb)

994
994
995
995
995
996
996
997
997
998
999
999
1000
1001
1001
1002
1003
1004
1004
1005
1006
1007
1008
1008

Ozone (du)

402
402
403
404
403
402
402
402
402
403
403
403
402
402
403
402
401
402
403
399
398
400
397
394

Friday 5

Waning Gibbous 72%

00:59

No Set

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

Sun - Rise: 04:36, Set: 21:20, Transit: 12:58. Moon - Rise: 00:59, Set: No Set. Civil Dark: 22:09 - 03:46. Nautical Dark: 23:30 - 02:25. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

59
39
39
57
74
93
93
84
82
93
94
98
99
99
100
100
100
100
100
100
100
99
98
97

Low Clouds (% Sky Obscured)

33
15
0
3
5
17
31
34
44
41
39
35
22
11
0
0
0
0
5
10
15
29
43
57

Medium Clouds (% Sky Obscured)

1
22
39
17
26
37
28
27
29
31
40
41
45
50
49
62
75
86
84
85
83
86
88
92

High Clouds (% Sky Obscured)

0
0
0
0
0
0
2
2
0
17
42
89
93
96
100
100
100
100
99
99
100
68
36
6

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
8
6
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
Very Light Rain
Very Light Rain

Precipitation Probability (%)

5
4
9
11
22
27
26
28
27
22
13
11
8
6
1
6
7
7
24
33
41
50
57
64

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
0.3
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

63
65
59
58
62
55
64
67
69
74
78
86
89
87
88
90
90
90
90
88
88
87
87
86

Pressure (mb)

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

Ozone (du)

391
386
384
382
379
376
370
373
373
367
364
363
364
364
366
365
367
370
372
372
372
371
371
370

Saturday 6

Waning Gibbous 62%

01:11

10:15

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
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 04:35, Set: 21:21, Transit: 12:58. Moon - Rise: 01:11, Set: 10:15. Civil Dark: 22:11 - 03:45. Nautical Dark: 23:32 - 02:23. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

98
99
100
100
100
100
97
93
90
91
95
98
96
96
100
96
89
83
85
92
97
93
89
82

Low Clouds (% Sky Obscured)

62
68
74
83
92
100
77
54
31
42
55
63
66
68
70
71
73
70
57
41
30
31
29
29

Medium Clouds (% Sky Obscured)

95
97
100
93
87
82
71
55
33
24
25
31
51
70
90
70
51
31
31
36
44
52
59
59

High Clouds (% Sky Obscured)

37
69
100
92
84
85
57
28
0
3
6
9
11
17
20
20
19
22
23
24
30
30
49
68

ISS Passover

Visibility (miles)

9
9
8
8
8
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

70
74
77
95
95
95
95
95
95
95
55
20
42
45
43
45
45
45
36
30
22
16
8
3

Precipitation Amount (mm)

0.4
0.4
0.4
0.8
1.1
1.5
1.8
1.9
2.3
0.8
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

13
13
13
13
13
13
13
14
14
14
14
13
12
11
11
10
10
10
9
10
11
12
13
14

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
87
90
92
92
92
92
84
79
75
78
79
80
84
87
90
91
93
95
90
87
84
76
69

Pressure (mb)

1009
1008
1007
1006
1006
1005
1005
1005
1005
1005
1006
1007
1008
1008
1008
1009
1009
1010
1011
1012
1013
1014
1015
1016

Ozone (du)

369
370
372
374
380
386
393
387
381
375
373
371
369
370
371
371
369
367
365
363
362
360
360
360

Sunday 7

Waning Gibbous 52%

01:21

11:32

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
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 04:35, Set: 21:22, Transit: 12:59. Moon - Rise: 01:21, Set: 11:32. Civil Dark: 22:12 - 03:45. Nautical Dark: 23:34 - 02:22. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

82
82
85
89
92
95
77
58
41
53
63
73
80
90
100
96
90
86
83
79
79

Low Clouds (% Sky Obscured)

33
43
47
56
69
76
52
29
4
5
6
7
22
35
47
55
64
67
58
49
40

Medium Clouds (% Sky Obscured)

57
60
62
65
69
73
59
46
34
32
29
31
24
21
17
36
50
60
40
26
6

High Clouds (% Sky Obscured)

63
58
53
55
60
45
35
23
14
14
14
14
42
72
100
93
87
82
68
49
17

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
4
0
1
1
0
8
3
1
1
0
0
0
0
0
20
23
12
19
20
11

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)

15
15
14
14
13
13
13
13
11
10
8
6
5
4
5
5
6
6
7
7
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

11
11
11
12
17
16
16
16
16
16
16
16
16
16
16
15
11
11
11
11
10

Dew Point (°C)

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

Relative Humidity (%)

62
61
58
57
57
57
57
61
65
69
72
75
79
83
86
89
90
90
91
87
83

Pressure (mb)

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

Ozone (du)

360
360
360
360
363
366
369
368
368
368
366
365
363
363
364
364
364
364
365
364
363

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

Generated: 01/06/26 10:05:57. Forecast: 01/06/26 to 07/06/26. Timezone: UTC+1.00