Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 30

Waxing Gibbous 100%

19:04

05:09

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 OK
08 OK
09 OK
10 OK

Sun - Rise: 05:37, Set: 19:43, Transit: 12:41. Moon - Rise: 19:04, Set: 05:09. Civil Dark: 20:14 - 05:06. Nautical Dark: 20:52 - 04:28. Astro Dark: 21:33 - 03:46

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
97
100
96
97
95
96
77
60
70
68
70
58
52
24
26
23
21

Low Clouds (% Sky Obscured)

98
100
100
100
100
100
100
92
100
96
80
82
90
77
60
55
57
64
58
26
0
0
4
17

Medium Clouds (% Sky Obscured)

100
100
93
34
29
40
35
37
33
31
58
45
22
24
21
27
31
30
28
51
24
25
23
15

High Clouds (% Sky Obscured)

100
100
100
35
2
0
0
0
0
0
30
4
1
1
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
7
8
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
2
1
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 (%)

95
95
73
35
35
14
25
11
9
12
11
11
18
11
2
1
1
1
0
0
0
0
0
0

Precipitation Amount (mm)

0.7
0.9
0.2
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
3
2
4
3
3
2
3
3
3
3
4
4
4
4
4
5
5
5
5
8
9
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
93
95
93
85
93
93
95
96
96
96
96
96
95
96
98
96
98
94
96
91
77
62
46

Pressure (mb)

1008
1007
1007
1007
1006
1006
1006
1006
1006
1007
1007
1007
1007
1007
1007
1007
1007
1008
1008
1009
1009
1010
1010
1010

Ozone (du)

377
376
375
374
372
369
373
372
371
371
374
373
372
374
374
375
376
380
382
385
383
387
391
389

Friday 1

Full Moon 100%

20:09

05:36

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

Sun - Rise: 05:35, Set: 19:44, Transit: 12:40. Moon - Rise: 20:09, Set: 05:36. Civil Dark: 20:15 - 05:04. Nautical Dark: 20:53 - 04:26. Astro Dark: 21:35 - 03:44

Total Clouds (% Sky Obscured)

36
79
85
87
51
60
56
22
19
53
49
48
56
58
66
83
83
91
99
100
97
92
85
89

Low Clouds (% Sky Obscured)

18
22
5
21
37
5
4
1
2
20
1
3
1
2
22
35
22
45
63
75
83
58
50
75

Medium Clouds (% Sky Obscured)

32
45
37
35
26
22
16
18
14
23
49
41
45
53
33
80
82
91
31
83
25
20
14
12

High Clouds (% Sky Obscured)

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

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
18
46
55
89
56
19
14
24

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1.3
0.4
0
0
0

Wind Speed/Direction (mph)

11
11
10
14
9
9
11
8
5
4
4
3
3
3
1
2
3
5
5
4
3
3
2
3

Chance of Frost

Temperature (°C)

14
15
16
15
15
16
15
15
13
10
8
7
7
6
6
6
6
6
6
6
6
7
8
10

Feels Like (°C)

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

Dew Point (°C)

0
0
0
2
2
0
-1
2
3
3
2
2
1
1
1
1
1
2
4
5
5
6
7
7

Relative Humidity (%)

39
37
35
42
43
34
34
41
51
62
65
66
67
69
70
68
69
75
85
91
94
93
90
82

Pressure (mb)

1010
1009
1009
1009
1009
1009
1009
1009
1010
1011
1012
1012
1012
1012
1012
1012
1012
1012
1013
1013
1014
1014
1014
1013

Ozone (du)

389
393
393
394
392
391
390
391
395
396
396
396
396
394
398
401
402
400
400
398
393
389
384
381

Saturday 2

Waning Gibbous 98%

21:14

06:08

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
10 Bad

Sun - Rise: 05:34, Set: 19:45, Transit: 12:40. Moon - Rise: 21:14, Set: 06:08. Civil Dark: 20:16 - 05:03. Nautical Dark: 20:55 - 04:24. Astro Dark: 21:37 - 03:42

Total Clouds (% Sky Obscured)

90
94
96
100
100
100
100
100
100
99
100
100
100
100
100
100
100
100
100
100
100
98
87
93

Low Clouds (% Sky Obscured)

78
90
88
72
64
52
48
25
26
30
46
53
73
48
44
52
56
62
39
8
18
46
56
70

Medium Clouds (% Sky Obscured)

9
8
15
12
25
29
100
100
100
99
100
100
100
100
100
100
100
100
65
100
100
97
27
55

High Clouds (% Sky Obscured)

10
30
49
100
100
100
100
100
26
33
100
96
86
78
100
100
100
100
100
85
75
57
32
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
6
5

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
19
45
45
45
45
45
45
45
45
45

Precipitation Type

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

Precipitation Probability (%)

43
42
54
50
44
48
38
20
12
6
23
6
7
4
10
25
21
19
16
9
6
27
48
49

Precipitation Amount (mm)

0
0
0.3
0
0
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.3

Wind Speed/Direction (mph)

2
3
1
6
7
7
7
7
6
4
4
4
4
3
2
2
2
4
4
4
5
6
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

71
72
73
69
60
57
58
63
71
78
78
82
85
87
91
91
90
88
91
93
88
79
73
71

Pressure (mb)

1013
1013
1013
1012
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1010
1010
1009
1009
1009
1009
1009
1009
1009
1009

Ozone (du)

378
377
376
372
367
361
356
356
355
356
361
368
380
386
386
382
385
386
392
396
400
405
409
413

Sunday 3

Waning Gibbous 94%

22:17

06:47

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

Sun - Rise: 05:33, Set: 19:47, Transit: 12:40. Moon - Rise: 22:17, Set: 06:47. Civil Dark: 20:18 - 05:01. Nautical Dark: 20:56 - 04:23. Astro Dark: 21:39 - 03:40

Total Clouds (% Sky Obscured)

88
74
81
91
90
83
88
41
35
26
15
3
3
0
0
3
5
8
10
22
5
18
39
62

Low Clouds (% Sky Obscured)

53
32
21
45
49
45
59
6
3
2
2
2
2
0
0
0
0
0
0
2
0
0
1
1

Medium Clouds (% Sky Obscured)

78
29
30
19
26
32
29
23
18
12
6
0
0
0
0
1
1
1
1
1
0
4
10
34

High 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

ISS Passover

Visibility (miles)

6
9
7
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

45
45
45
45
45
45
45
45
45
45
45
45
45
45
45
45
45
45
45
45
45
45
45
45

Precipitation Type

Very 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
None

Precipitation Probability (%)

50
41
34
15
21
7
8
7
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.3
0.2
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
6
6
9
12
12
12
12
9
8
6
5
5
5
5
5
5
6
7
6
7
8
9
10

Chance of Frost

Temperature (°C)

11
12
14
15
14
14
14
13
11
10
9
7
6
5
5
4
4
4
4
5
7
9
11
14

Feels Like (°C)

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

Dew Point (°C)

6
5
3
-1
2
0
-1
1
1
1
2
2
1
1
0
-1
-1
-2
-2
-1
0
0
1
1

Relative Humidity (%)

70
62
47
34
45
38
36
43
49
54
61
70
71
74
73
71
68
68
66
67
64
54
48
42

Pressure (mb)

1008
1008
1007
1007
1007
1007
1008
1008
1009
1010
1011
1012
1012
1012
1013
1013
1013
1013
1014
1014
1014
1015
1014
1014

Ozone (du)

412
412
413
414
411
408
408
411
414
414
407
404
406
408
407
402
400
401
402
403
403
404
404
401

Monday 4

Waning Gibbous 89%

23:14

07:35

11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 OK
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

Sun - Rise: 05:31, Set: 19:48, Transit: 12:40. Moon - Rise: 23:14, Set: 07:35. Civil Dark: 20:19 - 05:00. Nautical Dark: 20:58 - 04:21. Astro Dark: 21:40 - 03:38

Total Clouds (% Sky Obscured)

69
70
78
73
75
74
71
67
61
43
39
30
24
36
35
68
77
85
89
95
98
90
80
70

Low Clouds (% Sky Obscured)

1
1
0
0
4
5
5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
10
15

Medium Clouds (% Sky Obscured)

45
57
69
73
73
73
66
56
51
36
20
6
4
2
0
27
47
68
77
81
83
66
53
38

High Clouds (% Sky Obscured)

0
0
0
0
2
5
10
0
1
1
1
1
10
5
9
14
71
85
89
95
97
87
78
68

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 (%)

45
45
45
45
45
45
45
45
45
45
45
45
45
45
45
45
45
45
45
45
45
45
45
45

Precipitation Type

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

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
25
37
47
38
28
9
9
6
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

1
1
1
0
-1
1
4
4
5
6
7
8
7
7
6
7
7
8
9
10
10
11
11
11

Relative Humidity (%)

36
32
30
28
27
30
41
42
49
56
66
72
73
71
67
71
77
83
90
87
86
84
72
60

Pressure (mb)

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

Ozone (du)

397
395
393
393
397
397
402
401
398
396
395
393
391
388
391
387
387
387
387
388
389
391
391
391

Tuesday 5

Waning Gibbous 82%

00:04

08:30

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 OK
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad

Sun - Rise: 05:30, Set: 19:49, Transit: 12:40. Moon - Rise: 00:04, Set: 08:30. Civil Dark: 20:20 - 04:59. Nautical Dark: 20:59 - 04:20. Astro Dark: 21:42 - 03:36

Total Clouds (% Sky Obscured)

64
56
49
64
79
93
94
90
80
65
60
55
49
44
38
50
68
83
88
97
97
100
100
100

Low Clouds (% Sky Obscured)

14
13
13
17
22
26
18
9
0
0
0
0
0
0
0
14
28
42
41
40
39
27
17
6

Medium Clouds (% Sky Obscured)

38
26
12
10
10
9
15
16
15
19
20
22
15
8
1
8
21
32
55
77
97
100
100
100

High Clouds (% Sky Obscured)

58
48
39
55
36
13
9
4
0
0
0
0
0
0
7
39
49
55
55
55
55
55
55
60

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 (%)

45
45
45
45
45
45
45
45
45
45
45
45
45
45
45
45
45
45
45
45
45
45
45
45

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 (%)

1
2
1
2
3
1
3
4
2
2
2
0
1
2
1
1
2
0
0
0
0
4
8
13

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)

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

Chance of Frost

Temperature (°C)

21
22
24
25
25
24
24
22
20
18
17
16
15
14
14
14
14
14
13
14
15
15
17
18

Feels Like (°C)

13
14
15
17
23
22
21
21
20
20
12
12
12
12
11
12
10
11
10
10
11
10
13
14

Dew Point (°C)

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

Relative Humidity (%)

51
47
43
40
42
45
48
52
56
62
64
66
68
70
71
74
75
75
76
75
74
73
69
65

Pressure (mb)

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

Ozone (du)

392
391
390
389
387
385
384
383
383
382
382
382
381
380
379
379
380
380
381
381
381
381
381
381

Wednesday 6

Waning Gibbous 74%

00:46

09:31

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 OK
07 Good

Sun - Rise: 05:29, Set: 19:50, Transit: 12:40. Moon - Rise: 00:46, Set: 09:31. Civil Dark: 20:21 - 04:57. Nautical Dark: 21:00 - 04:18. Astro Dark: 21:44 - 03:34

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
90
79
69
50
32
14

Low Clouds (% Sky Obscured)

14
42
75
90
100
100
100
100
100
83
62
46
30
18
5
6
7
12
12
13
14

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
78
56
33
22
11
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

70
85
35
60
50
50
60
65
65
65
70
70
81
86
87
86
76
68
48
27
7

ISS Passover

Visibility (miles)

9
7
4
2
4
7
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

45
45
45
45
45
45
45
45
45
45
45
45
45
45
45
45
45
45
45
45
45

Precipitation Type

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

Precipitation Probability (%)

51
81
95
95
95
91
69
48
22
18
16
8
6
3
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0.5
0.9
0.8
0.7
0.5
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

15
14
13
13
12
11
10
8
7
7
7
7
7
6
5
4
4
5
5
6
7

Chance of Frost

Temperature (°C)

19
17
16
14
14
14
14
14
14
14
12
11
9
9
8
8
7
7
7
8
9

Feels Like (°C)

14
14
15
15
11
12
12
12
12
12
11
11
11
10
10
9
5
6
6
6
6

Dew Point (°C)

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

Relative Humidity (%)

63
72
82
95
95
95
95
96
95
95
93
95
93
93
95
95
94
96
98
91
87

Pressure (mb)

1013
1012
1012
1011
1011
1011
1010
1010
1011
1011
1011
1011
1012
1012
1011
1011
1011
1011
1010
1010
1009

Ozone (du)

381
381
380
380
381
382
383
384
385
386
388
390
392
393
393
394
395
396
397
397
398

Forecast for Boxford, Essex, United States of America (42.66,-70.99)

Generated: 30/04/26 11:37:48. Forecast: 30/04/26 to 06/05/26. Timezone: UTC-4.00