Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 27

Waxing Gibbous 74%

14:28

04:32

18 Bad
19 Bad
20 Bad
21 OK
22 Good
23 Good
00 Good
01 Good
02 OK
03 OK
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

Sun - Rise: 06:32, Set: 19:05, Transit: 12:49. Moon - Rise: 14:28, Set: 04:32. Civil Dark: 19:33 - 06:03. Nautical Dark: 20:06 - 05:30. Astro Dark: 20:40 - 04:56

Total Clouds (% Sky Obscured)

80
84
62
34
3
3
3
5
42
45
65
84
94
84
84
83
92
91
88
100
100
100
100
65

Low Clouds (% Sky Obscured)

0
1
1
1
1
1
1
0
9
15
25
9
64
70
70
71
86
73
68
100
5
41
5
11

Medium Clouds (% Sky Obscured)

57
10
0
0
0
0
0
0
0
0
7
34
37
2
0
0
0
40
24
55
55
52
99
65

High Clouds (% Sky Obscured)

80
42
18
20
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
6
1
0
0
0
0
0
2
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
Snow
Snow
Snow
Snow
Snow
Snow
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
13
27
36
42
42
37
28
19
6
4
1
1
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.1
0.2
0.2
0.2
0.2
0.1
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

5
4
3
2
2
1
1
0
-1
-1
-1
-1
-1
-2
-2
-2
-2
-1
-1
-0
1
2
1
1

Feels Like (°C)

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

Dew Point (°C)

-6
-7
-8
-9
-9
-10
-11
-12
-12
-11
-9
-6
-4
-4
-4
-4
-4
-4
-6
-8
-9
-10
-13
-14

Relative Humidity (%)

46
47
47
44
45
44
40
39
40
45
54
71
81
84
86
86
83
81
70
56
48
42
35
31

Pressure (mb)

1019
1020
1021
1022
1022
1022
1022
1023
1023
1023
1023
1023
1024
1025
1025
1026
1027
1027
1027
1027
1027
1026
1026
1027

Ozone (du)

297
298
299
300
303
302
305
308
311
316
323
331
342
351
366
376
375
381
385
395
399
406
421
443

Saturday 28

Waxing Gibbous 83%

15:40

04:59

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

Sun - Rise: 06:30, Set: 19:06, Transit: 12:48. Moon - Rise: 15:40, Set: 04:59. Civil Dark: 19:34 - 06:02. Nautical Dark: 20:07 - 05:28. Astro Dark: 20:42 - 04:54

Total Clouds (% Sky Obscured)

59
66
73
58
54
40
0
3
49
38
34
4
5
3
3
0
24
24
46
32
70
77
76
36

Low Clouds (% Sky Obscured)

5
10
5
3
42
40
0
0
0
0
0
0
1
1
1
0
0
1
2
2
19
15
25
2

Medium Clouds (% Sky Obscured)

59
62
13
14
15
12
0
3
49
38
34
3
5
0
0
0
23
24
44
26
33
19
21
16

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
2
34
1
0
0
0
0
0
0
0
1
1
1
4
3
6
28

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 (%)

10
4
0
3
2
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
5
7
9
8
10
9
7
7
6
5
5
6
7
7
7
7
9
10
11
13
14
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-14
-13
-14
-13
-11
-12
-13
-13
-13
-13
-14
-14
-14
-14
-15
-15
-14
-14
-13
-12
-11
-11
-11
-11

Relative Humidity (%)

32
36
34
38
44
43
39
40
41
41
39
39
40
40
38
35
32
30
29
29
28
27
27
28

Pressure (mb)

1027
1028
1029
1030
1030
1031
1031
1032
1032
1033
1033
1033
1034
1035
1035
1035
1035
1034
1033
1032
1031
1030
1029
1029

Ozone (du)

462
476
494
502
511
513
501
481
470
463
460
460
460
461
460
458
448
441
434
429
422
420
416
410

Sunday 29

Waxing Gibbous 91%

16:50

05:22

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
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad

Sun - Rise: 06:28, Set: 19:07, Transit: 12:48. Moon - Rise: 16:50, Set: 05:22. Civil Dark: 19:35 - 06:00. Nautical Dark: 20:09 - 05:26. Astro Dark: 20:43 - 04:52

Total Clouds (% Sky Obscured)

37
73
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
94
83
82
79
77
84

Low Clouds (% Sky Obscured)

0
0
1
1
2
1
1
0
0
0
39
52
54
35
6
2
2
27
36
8
5
5
1
15

Medium Clouds (% Sky Obscured)

26
69
100
98
100
100
100
100
100
100
100
100
100
99
65
14
100
100
94
83
82
79
77
84

High Clouds (% Sky Obscured)

10
11
57
100
100
98
9
82
0
0
0
81
100
95
100
100
100
100
14
27
38
52
37
51

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
4
31
24
1
0
1
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)

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

Chance of Frost

Temperature (°C)

5
3
3
3
3
3
3
4
4
4
4
5
5
5
5
7
8
9
10
10
12
13
13
14

Feels Like (°C)

0
-2
-3
-3
-3
-3
-2
-2
-1
-1
-1
0
0
1
1
2
4
5
5
6
8
8
9
10

Dew Point (°C)

-9
-7
-6
-5
-4
-2
-2
-2
-1
-1
-1
0
1
2
2
2
2
1
1
2
3
3
5
7

Relative Humidity (%)

36
46
53
58
63
69
69
68
71
69
71
72
76
80
80
72
64
58
56
55
52
49
56
62

Pressure (mb)

1029
1029
1029
1029
1029
1028
1027
1026
1025
1024
1024
1023
1022
1022
1022
1021
1021
1020
1019
1018
1017
1017
1016
1016

Ozone (du)

409
411
412
410
408
409
409
408
405
404
403
400
399
396
392
389
387
384
382
379
377
375
372
371

Monday 30

Waxing Gibbous 96%

17:57

05:42

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
17 Bad

Sun - Rise: 06:26, Set: 19:08, Transit: 12:48. Moon - Rise: 17:57, Set: 05:42. Civil Dark: 19:36 - 05:58. Nautical Dark: 20:10 - 05:25. Astro Dark: 20:45 - 04:50

Total Clouds (% Sky Obscured)

93
100
100
100
99
98
96
95
88
81
74
83
90
100
92
97
94
90
99
100
100
91
99
98

Low Clouds (% Sky Obscured)

15
20
25
20
19
35
50
67
64
61
55
59
67
84
73
73
58
49
48
73
70
59
53
51

Medium Clouds (% Sky Obscured)

93
25
48
48
92
98
96
56
72
81
68
72
31
19
17
21
23
14
21
43
17
40
80
73

High Clouds (% Sky Obscured)

73
97
71
38
7
5
2
0
0
0
0
33
67
100
92
97
94
90
83
75
80
86
91
94

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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

0
1
8
14
7
12
26
12
10
8
3
2
1
0
0
1
1
40
63
92
95
95
95
88

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0.7
1
1.2
0.8

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

8
7
7
7
7
7
7
8
8
8
8
8
8
8
8
9
9
9
8
8
7
7
7
7

Relative Humidity (%)

71
75
78
80
84
85
85
87
88
90
93
95
96
98
95
88
84
74
68
64
60
56
54
58

Pressure (mb)

1017
1017
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1017
1016
1015
1014
1014
1013

Ozone (du)

372
371
369
368
366
365
362
362
362
362
359
356
357
356
354
354
354
354
354
353
350
346
344
342

Tuesday 31

Waxing Gibbous 99%

17:57

06:02

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
17 Bad

Sun - Rise: 06:25, Set: 19:09, Transit: 12:48. Moon - Rise: 17:57, Set: 06:02. Civil Dark: 19:38 - 05:56. Nautical Dark: 20:11 - 05:23. Astro Dark: 20:46 - 04:48

Total Clouds (% Sky Obscured)

99
100
100
100
100
98
97
92
78
78
72
60
79
84
83
79
78
66
54
45
49
56
61
72

Low Clouds (% Sky Obscured)

55
43
27
13
0
7
16
24
16
7
0
0
0
0
0
0
0
0
0
0
17
34
52
60

Medium Clouds (% Sky Obscured)

75
70
44
55
54
47
44
48
39
33
27
20
10
0
0
0
0
0
0
0
11
23
34
55

High Clouds (% Sky Obscured)

97
100
100
100
100
86
74
60
41
19
0
10
18
24
45
55
72
66
44
29
29
34
37
58

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
8
7
6

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

Precipitation Probability (%)

58
2
0
0
0
0
2
2
2
3
0
0
0
0
0
0
0
0
1
1
32
48
65
95

Precipitation Amount (mm)

0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.8

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

15
14
13
13
12
13
13
13
13
13
13
13
13
13
14
16
17
19
20
21
22
21
20
20

Feels Like (°C)

11
11
10
9
9
9
8
9
9
9
8
8
9
9
10
10
11
12
12
13
14
20
20
21

Dew Point (°C)

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

Relative Humidity (%)

62
67
71
75
76
76
75
72
72
74
76
76
78
78
75
69
64
60
57
55
53
59
66
74

Pressure (mb)

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

Ozone (du)

342
340
340
339
337
335
334
335
333
332
331
329
331
331
331
331
330
330
329
329
328
327
326
325

Wednesday 1

Full Moon 100%

19:03

06:22

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
17 Bad

Sun - Rise: 06:23, Set: 19:10, Transit: 12:47. Moon - Rise: 19:03, Set: 06:22. Civil Dark: 19:39 - 05:55. Nautical Dark: 20:12 - 05:21. Astro Dark: 20:47 - 04:46

Total Clouds (% Sky Obscured)

86
100
100
100
100
100
100
100
100
100
100
100
100
100
92
86
79
83
90
97
99
100
100
100

Low Clouds (% Sky Obscured)

68
76
52
29
5
31
56
82
81
80
79
67
55
44
29
15
0
12
26
42
31
25
25
25

Medium Clouds (% Sky Obscured)

77
100
99
99
99
97
95
93
95
98
100
100
100
100
77
40
0
0
0
40
80
90
95
100

High Clouds (% Sky Obscured)

79
100
100
100
100
100
100
100
100
100
100
100
100
100
87
75
62
68
74
80
87
93
100
96

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

95
95
95
95
77
67
66
72
82
95
95
85
68
42
34
25
6
22
26
27
31
32
34
40

Precipitation Amount (mm)

1.5
2
1.5
0.9
0.4
0.3
0.2
0.3
0.4
0.8
0.9
0.6
0.4
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

17
14
11
10
9
8
7
7
6
5
5
4
4
4
4
4
4
4
4
3
3
3
3
2

Feels Like (°C)

19
16
13
7
6
7
5
6
6
1
1
1
1
0
0
-1
-1
-2
-1
-2
-1
-2
-3
-3

Dew Point (°C)

12
9
5
4
2
1
-1
-2
-4
-3
-2
-2
-2
-3
-3
-4
-4
-4
-3
-1
0
-0
-1
-1

Relative Humidity (%)

72
70
68
67
64
63
58
55
50
56
61
67
64
61
60
59
57
56
63
72
80
80
79
79

Pressure (mb)

1013
1015
1017
1019
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1033
1034
1034
1034
1034
1034
1034

Ozone (du)

326
327
328
331
333
336
338
340
342
343
344
344
344
344
344
343
342
341
338
336
334
334
333
333

Thursday 2

Waning Gibbous 99%

20:09

06:43

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: 06:21, Set: 19:12, Transit: 12:47. Moon - Rise: 20:09, Set: 06:43. Civil Dark: 19:40 - 05:53. Nautical Dark: 20:14 - 05:19. Astro Dark: 20:49 - 04:44

Total Clouds (% Sky Obscured)

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

Low Clouds (% Sky Obscured)

30
30
31
52
57
68
90
98
100
100
100
100
90
78
78
79
83
90
97
99

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

94
96
97
98
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
6
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

41
38
61
76
88
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95

Precipitation Amount (mm)

0
0
0.2
0.4
0.5
0.6
0.7
0.8
0.8
0.9
1
1.1
1.5
1.5
1.4
1.3
1.2
1.4
1.6
1.7

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
1
1

Feels Like (°C)

-3
-3
-3
-3
-3
-3
-3
-3
-3
-4
-4
-4
-4
-4
-4
-4
-5
-5
-5
-5

Dew Point (°C)

-1
-1
-1
0
1
1
1
1
2
1
1
1
2
2
1
1
2
2
1
1

Relative Humidity (%)

80
81
83
88
93
96
98
98
100
98
98
98
100
100
98
98
100
100
100
98

Pressure (mb)

1034
1035
1035
1035
1034
1034
1034
1034
1034
1033
1033
1033
1033
1033
1033
1033
1033
1033
1033
1032

Ozone (du)

333
334
335
336
337
338
338
337
337
337
336
336
338
339
340
340
340
339
341
343

Forecast for Brookline, Norfolk, United States of America (42.33,-71.12)

Generated: 27/03/26 18:41:24. Forecast: 27/03/26 to 02/04/26. Timezone: UTC-4.00