Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 2

Waxing Gibbous 100%

15:13

08:22

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

Sun - Rise: 08:44, Set: 16:49, Transit: 12:46. Moon - Rise: 15:13, Set: 08:22. Civil Dark: 17:27 - 08:05. Nautical Dark: 18:09 - 07:23. Astro Dark: 18:49 - 06:43

Total Clouds (% Sky Obscured)

33
43
48
64
25
24
19
9
39
67
34
65
45
25
11
0
0
26
59
47
41
52
72
72

Low Clouds (% Sky Obscured)

33
43
48
59
18
20
19
8
32
44
31
64
45
25
11
0
0
26
59
47
41
52
72
70

Medium Clouds (% Sky Obscured)

33
37
48
50
25
15
0
0
0
11
0
0
0
0
0
0
0
26
50
47
41
52
54
60

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)

9
9
9
2
7
9
9
9
9
9
9
9
9
9
9
9
9
9
8
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
None
None
None
None
None
None
None
None
None
None
None
None
None
Snow
Snow
None
None
Snow
None
Snow

Precipitation Probability (%)

0
2
29
35
23
10
6
4
3
6
0
0
6
3
4
7
22
34
33
25
6
31
28
65

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.1
0
0
0.1
0
0.4

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

73
74
74
77
69
58
55
56
58
58
61
65
70
73
77
77
77
81
84
87
86
86
84
84

Pressure (mb)

1002
1002
1002
1003
1003
1003
1003
1002
1003
1003
1004
1004
1005
1005
1006
1006
1006
1006
1006
1006
1007
1006
1006
1005

Ozone (du)

368
370
368
368
373
377
382
387
383
386
387
384
373
361
350
338
332
334
342
342
342
345
356
360

Saturday 3

Full Moon 99%

16:33

09:19

07 Bad
08 Bad
09 Bad
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

Sun - Rise: 08:44, Set: 16:50, Transit: 12:47. Moon - Rise: 16:33, Set: 09:19. Civil Dark: 17:28 - 08:05. Nautical Dark: 18:10 - 07:23. Astro Dark: 18:50 - 06:43

Total Clouds (% Sky Obscured)

69
74
74
71
68
59
55
45
94
98
89
97
97
98
100
100
55
82
100
100
74
67
77
65

Low Clouds (% Sky Obscured)

69
74
73
70
68
59
55
45
73
96
74
68
65
55
57
58
45
51
44
46
57
63
75
59

Medium Clouds (% Sky Obscured)

65
61
3
2
43
53
21
45
92
98
32
10
97
58
50
93
52
48
86
99
25
20
15
40

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)

0
0
9
9
9
9
9
9
9
9
9
9
0
0
2
0
0
9
9
4
0
0
0
4

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

Snow
Snow
None
None
None
None
None
None
None
None
Snow
None
Snow
None
Snow
Snow
None
None
None
None
Snow
Snow
Snow
None

Precipitation Probability (%)

95
44
14
13
23
11
8
8
12
30
36
30
57
35
66
68
36
6
4
20
85
95
79
36

Precipitation Amount (mm)

1.5
0.2
0
0
0
0
0
0
0
0
0.2
0
0.4
0
0.4
0.4
0
0
0
0
0.9
0.9
0.7
0

Wind Speed/Direction (mph)

12
12
12
12
12
15
17
16
13
13
11
11
12
11
9
12
14
13
11
12
11
12
11
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
96
78
78
80
77
76
74
74
80
89
92
96
94
87
100
94
81
86
87
96
98
98
92

Pressure (mb)

1005
1005
1005
1006
1006
1006
1006
1006
1006
1007
1007
1007
1008
1008
1009
1009
1009
1010
1010
1010
1010
1010
1011
1011

Ozone (du)

365
369
374
378
382
377
381
386
381
381
375
369
366
368
369
375
380
382
388
388
390
396
390
393

Sunday 4

Waning Gibbous 96%

18:02

09:58

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

Sun - Rise: 08:44, Set: 16:51, Transit: 12:47. Moon - Rise: 18:02, Set: 09:58. Civil Dark: 17:29 - 08:05. Nautical Dark: 18:11 - 07:23. Astro Dark: 18:51 - 06:43

Total Clouds (% Sky Obscured)

67
63
71
64
56
53
57
58
53
57
51
73
45
52
29
23
36
46
59
56
57
55
54
55

Low Clouds (% Sky Obscured)

65
62
70
64
56
51
55
58
53
57
51
67
45
46
29
23
33
39
48
46
44
38
33
38

Medium Clouds (% Sky Obscured)

2
1
1
14
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
56
57
2
4
5

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)

2
9
3
9
7
9
9
9
9
9
9
9
9
9
9
9
9
9
9
4
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
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
Snow
Snow
Snow
None
None

Precipitation Probability (%)

14
20
32
16
25
11
4
3
2
1
11
0
0
0
0
0
0
1
3
46
59
50
34
27

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
86
89
91
89
86
84
83
84
84
86
84
84
84
81
82
84
82
84
87
94
96
96
98

Pressure (mb)

1011
1012
1012
1013
1013
1013
1013
1013
1013
1013
1014
1014
1014
1014
1014
1015
1015
1014
1014
1014
1014
1014
1014
1014

Ozone (du)

391
392
391
386
380
379
382
382
380
378
377
376
374
382
386
390
393
395
392
393
395
395
396
390

Monday 5

Waning Gibbous 91%

19:31

10:25

07 Bad
08 Bad
09 Bad
10 Bad
11 OK
12 OK
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

Sun - Rise: 08:43, Set: 16:52, Transit: 12:48. Moon - Rise: 19:31, Set: 10:25. Civil Dark: 17:31 - 08:05. Nautical Dark: 18:13 - 07:23. Astro Dark: 18:52 - 06:43

Total Clouds (% Sky Obscured)

54
57
56
44
37
29
45
58
72
71
71
71
66
68
65
58
54
49
78
84
90
82
49
62

Low Clouds (% Sky Obscured)

42
41
45
38
31
24
39
56
71
71
71
71
66
59
42
39
37
37
57
79
89
81
46
57

Medium Clouds (% Sky Obscured)

5
7
7
6
5
9
17
19
21
33
39
35
30
28
26
29
23
20
59
53
35
18
3
3

High Clouds (% Sky Obscured)

0
1
1
0
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

3
8
6
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
0
0
2
9
7

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
Snow
Snow
None
None
None
None

Precipitation Probability (%)

15
0
0
2
1
2
5
9
11
15
14
11
9
6
0
1
3
8
52
71
43
18
11
7

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.6
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-7
-7
-7
-6
-4
-4
-3
-3
-2
-3
-4
-4
-4
-5
-5
-6
-6
-6
-7
-9
-8
-9
-9
-8

Dew Point (°C)

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

Relative Humidity (%)

98
94
94
96
96
94
92
91
91
89
89
89
89
91
91
91
91
87
86
91
94
94
92
94

Pressure (mb)

1013
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1015
1015
1015
1015
1015
1014
1014
1014
1014
1014
1014

Ozone (du)

392
407
409
406
405
411
411
413
414
416
408
406
404
404
404
401
401
401
398
396
399
400
396
397

Tuesday 6

Waning Gibbous 83%

20:55

10:43

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

Sun - Rise: 08:43, Set: 16:53, Transit: 12:48. Moon - Rise: 20:55, Set: 10:43. Civil Dark: 17:32 - 08:05. Nautical Dark: 18:14 - 07:23. Astro Dark: 18:53 - 06:43

Total Clouds (% Sky Obscured)

74
78
80
71
64
60
53
48
43
39
40
54
61
70
81
74
69
63
77
89
100
100
99
99

Low Clouds (% Sky Obscured)

69
71
77
69
64
60
53
46
39
39
38
53
55
58
61
54
46
40
39
39
37
31
21
10

Medium Clouds (% Sky Obscured)

2
3
0
0
0
0
0
0
0
0
1
2
6
18
60
63
57
55
70
86
100
100
99
99

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
4
7
5
3

ISS Passover

Visibility (miles)

3
1
1
2
5
9
9
9
9
9
5
4
3
4
4
5
7
8
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 (%)

4
4
14
6
8
6
3
2
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
1

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

Chance of Frost

Temperature (°C)

-4
-3
-3
-2
-2
-2
-2
-2
-2
-4
-6
-7
-7
-7
-7
-7
-7
-6
-5
-5
-5
-4
-4
-4

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
96
96
96
94
94
92
94
96
96
96
96
96
96
94
94
94
92
94
92
92
92
90
90

Pressure (mb)

1015
1015
1015
1016
1016
1016
1017
1016
1016
1016
1016
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1016

Ozone (du)

396
396
397
398
396
391
395
389
385
382
382
383
385
388
390
393
396
399
402
402
401
401
402
403

Wednesday 7

Waning Gibbous 74%

22:14

10:58

07 Bad
08 Bad
09 Bad
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

Sun - Rise: 08:43, Set: 16:54, Transit: 12:49. Moon - Rise: 22:14, Set: 10:58. Civil Dark: 17:33 - 08:04. Nautical Dark: 18:15 - 07:22. Astro Dark: 18:54 - 06:42

Total Clouds (% Sky Obscured)

99
100
100
100
99
99
95
91
86
83
79
75
83
91
97
98
99
100
99
99
98
99
99
100

Low Clouds (% Sky Obscured)

10
15
25
63
74
87
88
82
78
70
63
55
62
71
78
77
79
81
82
79
80
81
79
78

Medium Clouds (% Sky Obscured)

99
100
100
76
55
33
22
16
9
5
4
4
21
39
60
75
89
100
99
97
96
97
99
100

High Clouds (% Sky Obscured)

2
2
0
0
0
0
0
0
0
0
0
0
1
2
5
9
13
16
15
15
24
23
51
45

ISS Passover

Visibility (miles)

9
9
9
9
8
6
5
6
8
9
9
9
9
9
9
9
9
9
9
7
4
2
3
5

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
5
2
5
9
3
10
10
2
7
7
0
0
0
0
0
0
0
2
4
5
13
17
17

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-9
-8
-9
-9
-9
-9
-9
-7
-8
-7
-7
-7
-7
-9
-9
-9
-9
-9
-9
-9
-9
-9
-9
-9

Dew Point (°C)

-6
-6
-6
-6
-6
-5
-4
-4
-4
-4
-5
-5
-6
-6
-6
-6
-5
-5
-5
-4
-4
-4
-4
-4

Relative Humidity (%)

90
90
89
90
89
91
91
91
91
91
91
90
90
90
89
90
90
92
91
92
92
92
94
92

Pressure (mb)

1016
1017
1017
1017
1017
1017
1017
1017
1017
1016
1017
1017
1017
1017
1017
1017
1016
1016
1016
1016
1015
1015
1015
1015

Ozone (du)

405
405
405
406
404
402
400
399
399
398
398
398
398
397
397
396
393
390
387
382
377
371
357
343

Thursday 8

Waning Gibbous 64%

23:29

11:10

07 Bad
08 Bad
09 Bad
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

Sun - Rise: 08:42, Set: 16:56, Transit: 12:49. Moon - Rise: 23:29, Set: 11:10. Civil Dark: 17:34 - 08:04. Nautical Dark: 18:16 - 07:22. Astro Dark: 18:56 - 06:42

Total Clouds (% Sky Obscured)

95
91
87
85
82
81
80
81
82
79
78
77
71
72
74
73
71
75

Low Clouds (% Sky Obscured)

76
74
75
72
69
66
67
68
70
69
70
68
53
38
27
19
14
20

Medium Clouds (% Sky Obscured)

93
83
70
57
57
53
54
51
56
57
72
77
71
72
74
73
71
75

High Clouds (% Sky Obscured)

45
45
40
40
50
65
80
81
82
79
78
77
71
72
65
60
55
40

ISS Passover

Visibility (miles)

6
7
8
9
9
9
9
6
3
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

Precipitation Type

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

Precipitation Probability (%)

16
12
1
2
2
0
6
12
19
38
52
60
59
59
61
75
82
86

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-9
-9
-9
-9
-9
-9
-9
-7
-7
-8
-8
-8
-8
-7
-8
-7
-8
-7

Dew Point (°C)

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

Relative Humidity (%)

92
94
92
94
92
91
89
91
94
98
96
98
96
98
98
100
100
100

Pressure (mb)

1015
1015
1014
1014
1014
1014
1013
1013
1012
1012
1011
1011
1011
1010
1010
1010
1010
1009

Ozone (du)

328
331
334
337
338
339
340
340
341
341
341
341
340
340
339
338
338
339

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

Generated: 02/01/26 07:01:14. Forecast: 02/01/26 to 08/01/26. Timezone: UTC+1.00