Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 21

Waxing Crescent 15%

10:06

20:25

18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 OK
00 OK
01 Bad
02 Bad
03 Bad
04 OK
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: 08:31, Set: 17:17, Transit: 12:54. Moon - Rise: 10:06, Set: 20:25. Civil Dark: 17:54 - 07:54. Nautical Dark: 18:33 - 07:13. Astro Dark: 19:12 - 06:34

Total Clouds (% Sky Obscured)

57
77
82
89
67
34
37
68
68
51
35
60
100
100
100
100
100
100
99
100
100
100
100
87

Low Clouds (% Sky Obscured)

2
0
0
0
0
0
0
0
0
0
0
0
0
0
27
38
37
32
53
55
48
52
27
46

Medium Clouds (% Sky Obscured)

31
29
17
17
18
12
23
40
38
32
18
13
6
13
44
64
83
100
99
100
100
100
92
76

High Clouds (% Sky Obscured)

57
77
82
71
35
8
1
9
6
7
22
53
100
100
100
100
100
100
25
22
27
100
100
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 (%)

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
4
0
0
0
2
4
8
25
40
22
6
2
1

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

71
69
66
62
59
55
55
56
56
57
59
61
67
71
73
75
73
74
74
77
76
75
79
82

Pressure (mb)

997
996
996
996
996
996
996
996
995
995
995
994
994
994
995
995
995
995
995
995
994
994
995
995

Ozone (du)

344
349
354
358
361
362
363
364
369
371
373
373
374
374
375
374
373
374
373
371
368
365
367
371

Thursday 22

Waxing Crescent 23%

10:18

21:43

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

Sun - Rise: 08:29, Set: 17:19, Transit: 12:54. Moon - Rise: 10:18, Set: 21:43. Civil Dark: 17:55 - 07:53. Nautical Dark: 18:34 - 07:12. Astro Dark: 19:13 - 06:34

Total Clouds (% Sky Obscured)

74
92
90
76
100
100
42
68
65
44
78
71
62
66
66
38
47
82
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

37
49
59
59
64
41
42
68
65
44
78
67
62
64
50
37
39
42
50
53
44
56
52
42

Medium Clouds (% Sky Obscured)

23
50
86
46
39
79
42
43
16
0
4
5
5
0
0
6
47
51
100
100
100
76
100
99

High Clouds (% Sky Obscured)

38
21
35
16
10
5
10
0
1
0
6
37
5
25
40
27
31
67
100
82
76
91
93
95

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 (%)

2
3
15
2
1
0
1
0
0
0
0
0
0
0
0
0
3
15
16
5
7
6
16
10

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
83
82
82
82
78
75
75
76
76
82
88
90
90
90
85
82
79
81
82
77
81
81
81

Pressure (mb)

995
994
994
995
995
995
995
994
994
994
994
994
994
994
994
994
994
994
994
994
994
994
994
995

Ozone (du)

374
377
376
377
378
377
379
384
383
383
381
380
378
375
374
376
376
376
376
375
375
375
374
375

Friday 23

Waxing Crescent 33%

10:31

23:02

18 Bad
19 Bad
20 OK
21 OK
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 OK
16 OK
17 Good

Sun - Rise: 08:28, Set: 17:20, Transit: 12:54. Moon - Rise: 10:31, Set: 23:02. Civil Dark: 17:57 - 07:52. Nautical Dark: 18:36 - 07:12. Astro Dark: 19:15 - 06:33

Total Clouds (% Sky Obscured)

88
48
20
23
89
91
98
86
83
72
72
72
85
87
99
98
98
86
100
86
66
34
28
17

Low Clouds (% Sky Obscured)

40
36
14
14
18
47
7
4
0
0
5
7
28
1
19
20
19
41
50
41
33
28
21
11

Medium Clouds (% Sky Obscured)

64
23
19
23
82
87
87
80
53
55
50
45
35
30
30
23
25
12
37
77
12
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
40
0
76
14
11
72
72
72
40
16
17
24
19
9
100
70
39
2
1
1

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 (%)

3
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

4
4
4
4
3
3
3
3
3
3
3
3
2
3
2
3
3
3
3
3
3
3
4
4

Relative Humidity (%)

84
87
88
86
86
86
86
88
88
88
89
89
88
89
89
91
86
80
75
71
71
70
75
81

Pressure (mb)

995
995
996
996
996
997
997
997
998
998
998
998
998
999
999
1000
1000
1001
1001
1001
1001
1001
1001
1001

Ozone (du)

377
376
376
376
376
376
378
378
378
379
382
384
387
388
390
391
393
394
397
399
401
403
406
406

Saturday 24

Waxing Crescent 45%

10:45

00:23

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

Sun - Rise: 08:27, Set: 17:22, Transit: 12:55. Moon - Rise: 10:45, Set: 00:23. Civil Dark: 17:58 - 07:51. Nautical Dark: 18:37 - 07:10. Astro Dark: 19:16 - 06:32

Total Clouds (% Sky Obscured)

3
4
3
4
5
6
27
39
77
96
93
94
100
98
97
95
74
53
20
21
24
21
18
36

Low Clouds (% Sky Obscured)

1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
3
9
18
15
10
23

Medium Clouds (% Sky Obscured)

2
4
3
2
0
0
1
11
75
84
43
53
45
47
93
95
74
40
8
6
5
0
0
0

High Clouds (% Sky Obscured)

1
1
1
2
3
5
16
24
42
56
57
58
59
39
20
0
0
5
1
0
0
0
7
14

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)

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

Chance of Frost

Temperature (°C)

6
5
4
3
3
3
2
2
2
2
2
2
1
1
2
2
3
4
6
7
7
8
7
6

Feels Like (°C)

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

Dew Point (°C)

3
2
2
2
1
0
0
-0
-1
-1
-1
-0
-1
-0
0
0
1
1
2
3
3
3
3
3

Relative Humidity (%)

85
85
88
88
88
85
85
85
84
84
86
88
88
89
89
89
86
82
79
77
74
73
74
81

Pressure (mb)

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

Ozone (du)

407
410
414
415
412
411
412
414
418
425
423
422
424
426
429
432
434
436
437
437
438
436
436
434

Sunday 25

Waxing Crescent 45%

11:03

01:47

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

Sun - Rise: 08:26, Set: 17:24, Transit: 12:55. Moon - Rise: 11:03, Set: 01:47. Civil Dark: N/A - 07:50. Nautical Dark: 18:39 - 07:09. Astro Dark: 19:17 - 06:31

Total Clouds (% Sky Obscured)

61
72
83
93
95
97
100
91
82
73
66
57
48
100
100
100
99
98
96
92
87
83
89
92

Low Clouds (% Sky Obscured)

40
53
63
77
74
70
66
66
66
66
59
53
48
100
100
100
99
98
96
92
87
83
83
83

Medium Clouds (% Sky Obscured)

0
12
24
39
42
47
45
39
31
21
15
6
0
0
0
0
0
0
0
0
0
0
13
28

High Clouds (% Sky Obscured)

22
15
8
0
33
67
100
67
32
0
0
0
0
0
0
0
0
0
0
0
1
2
6
8

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 (%)

1
4
6
5
5
4
1
2
2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

3
2
2
2
2
3
2
3
2
2
2
2
2
1
1
1
1
1
0
1
3
3
3
3

Dew Point (°C)

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

Relative Humidity (%)

80
76
78
76
75
76
79
79
79
77
76
75
77
79
77
76
73
71
66
62
61
60
59
65

Pressure (mb)

1003
1003
1003
1003
1004
1004
1004
1005
1005
1006
1006
1006
1006
1006
1005
1006
1006
1006
1006
1006
1005
1005
1005
1005

Ozone (du)

433
430
430
430
430
428
427
427
425
424
423
422
421
420
417
415
412
409
406
403
400
397
394
398

Monday 26

First Quarter 56%

11:27

03:15

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: 08:24, Set: 17:25, Transit: 12:55. Moon - Rise: 11:27, Set: 03:15. Civil Dark: 18:00 - 07:48. Nautical Dark: 18:40 - 07:08. Astro Dark: 19:19 - 06:30

Total Clouds (% Sky Obscured)

94
90
86
83
75
72
71
85
92
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

85
76
67
60
65
70
71
85
90
93
90
87
82
86
93
99
99
100
100
98
97
96
96
97

Medium Clouds (% Sky Obscured)

40
58
76
83
75
72
71
85
88
89
96
98
100
100
100
100
100
100
100
99
99
98
87
77

High Clouds (% Sky Obscured)

10
10
10
5
7
4
6
37
69
100
100
100
100
100
100
100
100
100
100
100
100
100
91
69

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
7
5
2
2
2
2
4
7
9
9
9
9
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

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

Precipitation Probability (%)

0
0
0
0
2
7
16
34
39
35
51
65
88
95
95
95
95
95
95
95
95
84
65
54

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.2
0.4
0.9
1.1
1.4
1.5
1.5
1.5
1
0.8
0.5
0.2
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

3
4
2
2
2
2
1
1
-1
-1
-2
-2
-2
-2
-2
-2
-2
-3
-4
-4
2
2
2
2

Dew Point (°C)

0
1
1
2
2
2
1
1
1
1
1
1
1
2
2
2
2
3
3
4
3
3
2
3

Relative Humidity (%)

70
76
78
79
79
78
76
76
78
79
79
82
86
89
88
89
91
89
89
88
85
80
79
85

Pressure (mb)

1004
1004
1003
1003
1002
1001
1000
999
998
997
996
994
992
991
990
989
988
987
986
985
985
985
985
985

Ozone (du)

402
406
401
395
389
383
376
370
368
366
364
364
364
365
365
365
366
368
371
374
380
387
394
404

Tuesday 27

Waxing Gibbous 68%

12:02

04:43

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 OK
12 OK

Sun - Rise: 08:23, Set: 17:27, Transit: 12:55. Moon - Rise: 12:02, Set: 04:43. Civil Dark: 18:02 - 07:47. Nautical Dark: 18:41 - 07:07. Astro Dark: 19:20 - 06:29

Total Clouds (% Sky Obscured)

100
100
100
100
100
99
99
93
86
80
78
74
66
56
47
43
41
40
34

Low Clouds (% Sky Obscured)

97
89
79
71
71
69
67
71
76
80
70
61
56
56
47
43
41
40
34

Medium Clouds (% Sky Obscured)

66
76
89
100
98
96
93
67
40
16
25
24
16
13
13
17
14
11
9

High Clouds (% Sky Obscured)

68
59
51
37
54
74
89
73
53
34
23
12
1
1
1
0
13
30
34

ISS Passover

Visibility (miles)

3
1
3
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

Precipitation Type

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

Precipitation Probability (%)

63
90
95
95
88
60
18
15
12
10
6
2
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0.5
0.9
1
0.6
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

5
4
5
5
5
5
5
5
5
5
4
4
4
4
4
4
4
5
6

Feels Like (°C)

3
3
-2
-2
-2
-2
-2
-2
-2
-1
-1
-1
-1
0
0
-0
-0
-0
-0

Dew Point (°C)

3
4
3
3
3
3
3
3
3
3
2
2
2
3
3
2
2
3
3

Relative Humidity (%)

89
94
91
86
83
83
85
86
86
86
85
88
89
93
93
91
89
85
79

Pressure (mb)

986
986
987
989
990
991
992
993
993
994
994
994
995
995
995
995
995
995
995

Ozone (du)

414
424
427
430
433
438
444
449
456
463
470
475
479
484
480
476
472
470
468

Forecast for Brussels, Bruxelles-Capitale, Kingdom of Belgium (50.85,4.35)

Generated: 21/01/26 18:31:00. Forecast: 21/01/26 to 27/01/26. Timezone: UTC+1.00