Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 5

Waning Gibbous 94%

19:31

10:25

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

17
19
17
39
90
92
90
89
94
95
99
96
80
56
50
37
24
51
49
71
58
54
75
55

Low Clouds (% Sky Obscured)

6
17
17
39
39
52
66
75
82
72
82
92
80
56
46
36
24
51
49
71
50
54
66
55

Medium Clouds (% Sky Obscured)

17
9
17
39
87
90
79
71
87
89
95
92
40
40
0
0
0
0
0
2
34
2
9
0

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
9
9
9
9
9
7
3
0
0
7
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
Sleet
Snow
Snow
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
1
0
0
3
15
24
35
57
75
56
29
11
4
1
0
2
5
2
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.3
0.6
0.2
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
81
81
79
82
84
87
89
89
89
96
100
94
94
96
94
94
92
89
91
91
92
92
94

Pressure (mb)

1012
1012
1012
1011
1011
1011
1012
1012
1012
1012
1012
1012
1012
1012
1012
1013
1013
1014
1014
1014
1015
1015
1015
1016

Ozone (du)

378
377
379
390
405
400
402
402
399
397
391
390
393
401
404
405
411
411
408
412
419
422
418
414

Tuesday 6

Waning Gibbous 91%

20:55

10:43

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

47
34
24
31
64
64
82
36
24
28
45
32
1
50
72
80
77
89
88
95
92
96
100
100

Low Clouds (% Sky Obscured)

47
34
24
27
64
64
82
36
23
28
45
32
0
0
67
75
67
53
56
45
43
48
50
31

Medium Clouds (% Sky Obscured)

2
3
24
31
47
3
1
0
0
1
0
0
1
15
19
11
9
29
88
95
79
94
100
100

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
9
23
29
24
68
48
25
19

ISS Passover

Visibility (miles)

9
9
9
9
9
1
0
1
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
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

2
2
3
3
6
29
20
2
0
1
0
0
0
0
0
0
0
0
5
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

4
4
4
5
4
4
4
5
6
6
6
7
7
7
7
7
8
9
9
10
11
13
14
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

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

Pressure (mb)

1016
1017
1017
1017
1017
1018
1018
1019
1019
1019
1018
1018
1018
1018
1018
1018
1018
1017
1017
1017
1016
1016
1015
1014

Ozone (du)

411
413
414
409
404
403
400
396
396
396
397
393
394
395
395
396
397
397
400
398
391
392
392
394

Wednesday 7

Waning Gibbous 83%

22:14

10:58

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
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 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 - 06:43

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
99
99
100
98
98
97
100
79
85
75
80
93
94
92
99
100
100
100

Low Clouds (% Sky Obscured)

44
52
51
57
95
89
96
97
100
91
97
96
96
73
74
61
72
84
85
79
74
75
63
82

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
95
71
90
94
70
0
8
1
8
65
6
11
11
13
35
52
67
100

High Clouds (% Sky Obscured)

77
41
41
5
5
5
1
0
0
3
0
1
18
27
39
6
14
16
10
4
17
98
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
8
0
0
0
0
0
4
0
0
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
Snow
Snow
Snow
Snow
Snow
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
1
3
8
37
64
94
95
95
95
72
17
12
17
22
24
8
9
9
3
1
0
5
10

Precipitation Amount (mm)

0
0
0
0
0
0.2
0.6
1.1
1.1
1.1
0.6
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

15
16
17
16
18
18
17
17
17
15
14
11
8
8
10
7
5
5
5
5
6
7
7
8

Chance of Frost

Temperature (°C)

-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
0
0
1
1
0
0
-0
0
0
0
0
-0

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
84
84
86
86
84
87
94
94
96
96
98
98
98
98
96
96
96
96
96
94
94
96
94

Pressure (mb)

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

Ozone (du)

395
395
397
397
397
400
401
397
391
388
386
389
385
365
346
339
333
329
326
319
317
322
323
321

Thursday 8

Waning Gibbous 74%

23:29

11:10

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
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 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)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
95
91

Low Clouds (% Sky Obscured)

84
93
96
100
100
100
100
94
89
84
80
76
72
69
68
66
75
88
100
100
100
100
93
89

Medium Clouds (% Sky Obscured)

97
85
96
91
27
29
36
27
26
57
100
96
65
98
83
100
100
100
100
100
100
100
83
66

High Clouds (% Sky Obscured)

100
100
100
89
100
100
100
100
100
100
71
43
10
40
70
100
100
100
100
100
100
100
68
37

ISS Passover

Visibility (miles)

9
9
9
9
1
0
1
9
5
9
0
0
0
0
0
0
0
0
0
9
0
0
0
3

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

Precipitation Probability (%)

15
29
38
44
48
43
19
14
22
18
3
5
0
1
2
4
49
95
95
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0.1
0.1
0
0
0
0
0
0
0
0
0
0
0
0
0.8
0.7
0.6
0.6
1
2.3
1

Wind Speed/Direction (mph)

8
9
10
11
12
14
14
15
14
13
11
11
9
7
7
7
9
11
12
15
17
18
19
21

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
92
91
91
92
94
96
94
96
96
98
100
100
100
100
100
98
98
98
96
98
98
98
93

Pressure (mb)

1012
1011
1010
1009
1008
1008
1008
1007
1007
1007
1007
1007
1007
1007
1006
1005
1005
1003
1001
998
996
994
991
990

Ozone (du)

324
325
326
326
327
328
327
327
326
329
329
327
326
320
319
322
323
325
326
324
325
324
327
328

Friday 9

Waning Gibbous 64%

00:42

11:21

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
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad

Sun - Rise: 08:42, Set: 16:57, Transit: 12:49. Moon - Rise: 00:42, Set: 11:21. Civil Dark: 17:35 - 08:03. Nautical Dark: 18:17 - 07:22. Astro Dark: 18:57 - 06:42

Total Clouds (% Sky Obscured)

89
81
57
68
100
74
92
100
100
100
100
100
100
100
100
100
97
96
95
91
88
85
86
86

Low Clouds (% Sky Obscured)

85
62
54
68
93
71
81
90
92
94
96
98
100
100
100
100
80
82
79
78
75
76
74
74

Medium Clouds (% Sky Obscured)

49
44
35
45
50
45
48
100
100
91
95
100
100
97
100
100
69
52
70
80
80
85
82
83

High Clouds (% Sky Obscured)

5
32
57
68
63
33
0
0
0
0
0
3
5
8
18
21
79
73
66
44
22
0
0
2

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
7
0
0
0
0
8
1
2
3
5
6
7
8
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
Very Light Rain
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
None
None

Precipitation Probability (%)

57
32
23
32
34
40
45
51
67
79
95
95
95
95
95
95
94
90
95
75
59
43
45
48

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.2
0.3
0.8
0.9
0.9
1
0.9
1.5
0.7
0.6
0.7
0.4
0.2
0
0
0

Wind Speed/Direction (mph)

24
19
19
21
23
25
26
27
28
28
28
26
24
23
22
22
21
21
22
24
23
23
22
22

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
87
84
82
78
72
73
71
76
88
88
94
94
96
94
86
93
93
93
91
89
86
83
86

Pressure (mb)

989
988
987
986
985
985
984
983
983
983
983
984
985
986
987
988
989
992
993
993
995
996
997
998

Ozone (du)

334
341
350
356
361
361
358
355
353
370
383
375
385
391
399
399
389
393
397
401
402
403
405
406

Saturday 10

Third Quarter 54%

01:54

11:33

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
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad

Sun - Rise: 08:41, Set: 16:58, Transit: 12:50. Moon - Rise: 01:54, Set: 11:33. Civil Dark: 17:37 - 08:03. Nautical Dark: 18:18 - 07:21. Astro Dark: 18:58 - 06:42

Total Clouds (% Sky Obscured)

86
84
84
83
87
92
96
98
99
100
100
100
99
98
97
95
83
78
73
81
87
92
94
98

Low Clouds (% Sky Obscured)

72
74
75
77
82
87
92
97
99
100
100
99
99
98
97
95
78
62
51
40
26
13
12
12

Medium Clouds (% Sky Obscured)

79
64
50
32
45
58
71
64
55
48
35
21
6
4
2
0
0
0
0
9
24
39
58
79

High Clouds (% Sky Obscured)

1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
26
49
65
70
77
88
92
96

ISS Passover

Visibility (miles)

3
0
3
6
9
9
9
9
6
4
1
4
6
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
None
None
None
None
None
None
None
Snow
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

52
48
44
37
32
30
29
39
55
74
75
65
59
51
39
29
24
18
8
12
9
0
1
0

Precipitation Amount (mm)

0.2
0
0
0
0
0
0
0
0.2
0.4
0.5
0.3
0.3
0.2
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

23
24
23
22
22
20
20
20
18
17
16
15
15
14
13
11
10
8
7
6
6
5
4
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
96
91
88
83
82
80
79
83
89
94
88
82
76
80
82
86
86
86
88
88
88
88
89

Pressure (mb)

999
1000
1001
1002
1004
1005
1006
1007
1007
1008
1009
1010
1011
1012
1013
1014
1015
1015
1016
1016
1016
1016
1016
1016

Ozone (du)

407
408
402
395
388
388
388
388
385
382
380
379
378
377
372
368
364
359
354
349
345
340
336
333

Sunday 11

Waning Crescent 45%

03:06

11:46

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
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 08:41, Set: 17:00, Transit: 12:50. Moon - Rise: 03:06, Set: 11:46. Civil Dark: 17:38 - 08:02. Nautical Dark: 18:19 - 07:21. Astro Dark: 18:59 - 06:41

Total Clouds (% Sky Obscured)

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

Low Clouds (% Sky Obscured)

10
17
26
35
49
68
81
76
76
76
82
88
95
89
83
74
75
77
80
80
82
85

Medium Clouds (% Sky Obscured)

96
93
90
86
85
86
87
91
92
93
95
98
99
99
100
100
100
100
100
78
55
33

High Clouds (% Sky Obscured)

100
97
91
90
90
90
91
94
96
100
98
96
94
96
98
100
100
100
100
72
44
11

ISS Passover

Visibility (miles)

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

Precipitation Type

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
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

0
3
7
10
56
83
95
95
95
95
95
95
77
82
92
95
95
95
82
65
52
43

Precipitation Amount (mm)

0
0
0
0
0.2
0.5
0.8
1
1.2
1
0.8
0.7
0.4
0.5
0.6
0.8
0.8
0.7
0.5
0.3
0.2
0.2

Wind Speed/Direction (mph)

5
6
7
8
8
10
12
14
15
16
17
18
18
18
18
18
18
17
17
16
15
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
91
89
88
89
88
84
83
80
76
73
77
82
86
86
86
88
90
91
91
91
91

Pressure (mb)

1016
1015
1014
1013
1013
1011
1010
1009
1008
1006
1004
1003
1002
1001
1000
1000
999
999
1000
1000
1000
1000

Ozone (du)

330
327
323
319
314
315
315
315
315
315
315
312
308
305
305
305
305
313
320
328
328
328

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

Generated: 05/01/26 03:48:16. Forecast: 05/01/26 to 11/01/26. Timezone: UTC+1.00