Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 30

Waxing Gibbous 99%

19:34

04:50

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

Sun - Rise: 05:25, Set: 20:26, Transit: 12:57. Moon - Rise: 19:34, Set: 04:50. Civil Dark: 21:06 - 04:45. Nautical Dark: 21:59 - 03:52. Astro Dark: 23:07 - 02:43

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
1
1
2
2
0
0
0
0
0
0
0
0
0
0
0
0

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
0
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
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
1
1
2
2
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

Fog (%)

-
-
-
-
-
-
-
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)

20
20
20
22
21
20
19
17
13
10
8
8
8
8
7
7
6
6
7
7
9
10
10
10

Chance of Frost

Temperature (°C)

17
19
19
19
19
18
17
15
13
11
10
9
9
9
9
8
8
7
7
9
11
13
15
16

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

46
41
40
39
39
42
45
60
69
68
72
69
67
67
70
73
77
78
79
78
70
62
57
54

Pressure (mb)

1025
1025
1024
1024
1023
1023
1023
1023
1023
1023
1024
1024
1023
1023
1023
1023
1022
1022
1022
1022
1022
1022
1022
1022

Ozone (du)

379
380
380
381
381
381
381
382
383
384
384
384
384
382
379
378
378
378
378
379
380
379
378
378

Friday 1

Full Moon 100%

20:51

05:05

12 Good
13 Good
14 Good
15 Good
16 OK
17 OK
18 OK
19 OK
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: 05:23, Set: 20:28, Transit: 12:57. Moon - Rise: 20:51, Set: 05:05. Civil Dark: 21:08 - 04:43. Nautical Dark: 22:01 - 03:49. Astro Dark: 23:11 - 02:38

Total Clouds (% Sky Obscured)

0
0
2
10
23
27
31
40
74
75
74
82
87
85
98
90
99
100
100
100
97
78
53
99

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
22
22
31
37
44
61
74
55
42
60
41
35
86
48
31
6

Medium Clouds (% Sky Obscured)

0
0
1
4
13
18
16
22
43
42
44
47
46
56
48
2
19
6
60
88
69
59
33
32

High Clouds (% Sky Obscured)

0
0
0
3
0
0
0
4
43
38
46
48
39
11
66
79
96
100
100
100
64
51
52
92

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
2
2
1
3
8
38
23
18
5
4
1
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
9
9
9
7
7
10
9
7
6
5
5
6
6
6
5
5
5
6
6
6
6

Chance of Frost

Temperature (°C)

18
19
20
21
21
21
21
20
17
15
13
13
13
13
13
12
12
11
11
12
13
14
15
16

Feels Like (°C)

16
18
19
20
21
21
22
21
17
14
13
13
14
13
13
11
10
10
9
10
11
12
13
15

Dew Point (°C)

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

Relative Humidity (%)

51
50
49
50
53
58
66
72
79
83
86
93
96
96
96
95
96
95
95
87
79
69
62
61

Pressure (mb)

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

Ozone (du)

379
379
378
376
375
373
372
371
370
367
365
368
367
365
364
364
363
363
364
366
368
371
373
374

Saturday 2

Waning Gibbous 98%

22:08

05:25

12 Bad
13 Bad
14 OK
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: 05:21, Set: 20:30, Transit: 12:57. Moon - Rise: 22:08, Set: 05:25. Civil Dark: 21:10 - 04:41. Nautical Dark: 22:04 - 03:47. Astro Dark: 23:15 - 02:34

Total Clouds (% Sky Obscured)

99
93
22
98
100
91
99
100
100
99
100
100
100
100
100
100
100
100
100
100
100
96
99
99

Low Clouds (% Sky Obscured)

0
0
0
21
32
56
40
29
19
40
45
58
47
85
91
83
85
93
91
97
80
82
87
53

Medium Clouds (% Sky Obscured)

41
2
6
65
75
75
91
100
100
94
100
97
75
45
100
100
100
100
98
99
97
94
86
92

High Clouds (% Sky Obscured)

76
47
14
86
100
52
57
60
99
49
93
100
96
100
100
100
100
100
100
100
100
76
94
38

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
2
9
9
9
9
9
9
3
2
0
1
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
Light Rain
Light Rain
None
None
None
Light Rain
Light Rain
Light Rain
Moderate Rain
Moderate Rain
Light Rain
Very Light Rain
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
2
9
26
63
79
35
26
36
95
95
95
95
95
95
95
60
42
44

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.4
0.8
0
0
0
0.9
0.9
1.3
3.4
2.5
1.3
0.3
0
0
0

Wind Speed/Direction (mph)

6
6
6
5
3
3
7
10
10
10
10
9
9
9
9
10
11
11
10
8
6
11
11
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

16
17
20
20
20
19
19
13
10
11
11
11
10
9
9
8
7
8
8
9
11
12
11
12

Dew Point (°C)

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

Relative Humidity (%)

55
52
50
51
52
55
63
75
80
76
90
93
90
84
81
83
84
90
98
100
98
93
93
84

Pressure (mb)

1017
1016
1016
1015
1014
1014
1014
1013
1013
1013
1012
1012
1011
1011
1010
1009
1008
1007
1006
1006
1006
1005
1006
1006

Ozone (du)

374
375
376
376
375
376
376
377
378
380
381
381
381
378
378
377
377
376
376
378
380
383
389
395

Sunday 3

Waning Gibbous 95%

23:20

05:55

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: 05:19, Set: 20:32, Transit: 12:56. Moon - Rise: 23:20, Set: 05:55. Civil Dark: 21:12 - 04:39. Nautical Dark: 22:06 - 03:44. Astro Dark: 23:19 - 02:29

Total Clouds (% Sky Obscured)

86
96
90
85
75
54
43
50
57
68
83
96
100
99
99
98
99
96
96
98
99
100
98
97

Low Clouds (% Sky Obscured)

60
74
71
71
67
53
43
48
51
59
75
91
100
96
92
87
91
94
96
98
99
100
92
84

Medium Clouds (% Sky Obscured)

40
41
37
27
16
7
0
7
13
18
21
20
19
20
29
30
24
18
11
18
27
35
33
40

High Clouds (% Sky Obscured)

35
27
19
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
0

ISS Passover

Visibility (miles)

4
4
5
7
6
5
6
5
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

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

Precipitation Probability (%)

61
64
56
61
69
61
56
34
15
5
10
11
9
7
9
5
6
5
2
7
12
13
25
25

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

13
14
14
13
13
12
11
11
9
8
8
7
6
4
4
4
4
4
4
3
4
4
5
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
71
78
76
78
81
81
84
87
93
95
96
96
96
95
96
96
96
90
87
85
81
81
81

Pressure (mb)

1006
1006
1006
1006
1006
1006
1006
1006
1007
1008
1008
1009
1009
1010
1010
1010
1010
1011
1011
1011
1012
1012
1013
1013

Ozone (du)

395
393
393
391
390
390
387
385
384
383
382
383
386
385
384
385
386
387
386
386
385
384
385
386

Monday 4

Waning Gibbous 90%

00:24

06:36

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: 05:18, Set: 20:33, Transit: 12:56. Moon - Rise: 00:24, Set: 06:36. Civil Dark: 21:14 - 04:36. Nautical Dark: 22:09 - 03:41. Astro Dark: 23:24 - 02:24

Total Clouds (% Sky Obscured)

55
85
96
97
56
88
85
90
95
99
79
68
84
79
81
81
88
94
100
91
86
84
96
96

Low Clouds (% Sky Obscured)

55
77
82
85
56
66
57
67
77
88
77
68
74
72
72
72
80
90
100
63
65
68
67
67

Medium Clouds (% Sky Obscured)

42
37
31
26
28
31
31
33
35
40
24
14
3
2
1
0
8
17
25
32
28
29
33
33

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
4
2
1
0
13
10
6
24
41

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 (%)

25
25
23
15
14
23
24
22
16
16
23
29
28
24
19
14
18
21
24
9
11
13
20
29

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
72
68
69
68
66
74
87
93
85
90
91
96
96
95
93
93
93
95
90
78
68
61
60

Pressure (mb)

1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1014
1014
1014
1014
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013

Ozone (du)

386
386
386
387
388
392
397
401
397
390
385
382
380
379
376
375
376
377
378
378
376
375
374
374

Tuesday 5

Waning Gibbous 83%

01:15

07:31

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: 05:16, Set: 20:35, Transit: 12:56. Moon - Rise: 01:15, Set: 07:31. Civil Dark: 21:16 - 04:34. Nautical Dark: 22:11 - 03:38. Astro Dark: 23:28 - 02:19

Total Clouds (% Sky Obscured)

97
96
95
94
95
97
98
95
92
90
93
96
97
95
97
98
94
88
85
90
95
96
92
89

Low Clouds (% Sky Obscured)

66
75
83
81
77
74
74
73
73
71
75
77
79
79
80
88
88
87
85
87
78
78
74
68

Medium Clouds (% Sky Obscured)

32
32
33
41
46
47
35
22
17
12
9
6
9
12
14
15
11
7
4
4
4
4
12
20

High Clouds (% Sky Obscured)

59
59
54
39
34
30
30
21
21
19
21
24
24
30
36
41
43
39
40
40
35
30
30
35

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 (%)

38
32
24
10
11
11
8
21
23
24
24
21
14
17
16
13
16
17
14
26
30
32
30
28

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

10
10
12
12
12
12
13
13
7
7
6
6
5
4
2
2
2
2
2
2
3
4
4
5

Dew Point (°C)

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

Relative Humidity (%)

57
56
55
54
54
60
68
78
80
82
85
84
85
85
83
81
79
81
82
85
85
84
84
82

Pressure (mb)

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

Ozone (du)

374
375
375
375
375
377
379
380
380
381
381
382
382
383
385
387
389
388
387
386
386
385
385
386

Wednesday 6

Waning Gibbous 75%

01:53

08:38

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: 05:14, Set: 20:37, Transit: 12:56. Moon - Rise: 01:53, Set: 08:38. Civil Dark: 21:18 - 04:32. Nautical Dark: 22:14 - 03:36. Astro Dark: 23:33 - 02:14

Total Clouds (% Sky Obscured)

86
86
84
85
86
89
93
95
97
100
85
71
56
65
79
89
88
87
90
87
87
86
90
95

Low Clouds (% Sky Obscured)

61
64
66
70
51
32
12
10
7
5
5
5
5
10
15
19
23
33
37
46
50
57
72
85

Medium Clouds (% Sky Obscured)

31
37
42
46
27
13
2
16
32
51
58
63
56
65
77
85
74
61
48
43
30
29
31
33

High Clouds (% Sky Obscured)

35
21
17
14
36
59
80
87
93
100
73
46
19
12
6
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 (%)

25
29
30
27
24
22
16
16
17
13
30
39
44
44
41
29
24
17
5
10
13
15
22
28

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
81
82
84
84
82
79
78
81
82
85
88
90
93
94
93
93
91
93
91
80
71
63
68

Pressure (mb)

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

Ozone (du)

387
389
388
387
387
389
391
393
395
398
400
402
403
404
409
414
418
419
419
419
415
411
407
406

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

Generated: 30/04/26 19:15:29. Forecast: 30/04/26 to 06/05/26. Timezone: UTC+1.00