Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 7

Waning Gibbous 74%

22:14

11:10

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

Sun - Rise: 08:42, Set: 16:56, Transit: 12:49. Moon - Rise: 22:14, Set: 11:10. Civil Dark: 17:33 - 08:04. Nautical Dark: 18:15 - 07:22. Astro Dark: 18:54 - 06:42

Total Clouds (% Sky Obscured)

97
100
93
92
83
83
98
91
90
98
97
74
100
100
98
99
98
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

97
87
78
85
81
68
71
68
48
42
64
52
69
75
86
83
90
100
97
100
100
83
59
82

Medium Clouds (% Sky Obscured)

0
0
0
12
24
63
96
47
49
94
93
46
60
88
49
86
94
100
93
100
100
100
100
100

High Clouds (% Sky Obscured)

1
5
8
11
10
17
10
9
19
47
47
10
100
92
81
89
68
100
100
100
100
90
100
100

ISS Passover

Visibility (miles)

0
0
0
9
9
8
9
9
9
9
9
9
9
7
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
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

42
29
16
16
19
16
7
3
1
0
1
3
22
39
60
67
51
27
9
9
9
12
35
51

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

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

Pressure (mb)

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

Ozone (du)

353
341
338
337
326
323
325
326
326
329
333
333
331
332
333
330
331
329
327
327
327
326
322
319

Thursday 8

Waning Gibbous 64%

23:29

11:21

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

Sun - Rise: 08:42, Set: 16:57, Transit: 12:49. Moon - Rise: 23:29, Set: 11:21. Civil Dark: 17:34 - 08:03. Nautical Dark: 18:16 - 07:22. Astro Dark: 18:56 - 06:42

Total Clouds (% Sky Obscured)

100
100
100
100
100
96
81
63
98
91
87
100
100
100
100
100
100
100
100
100
98
100
100
100

Low Clouds (% Sky Obscured)

100
100
94
93
100
88
70
60
83
76
87
100
100
97
100
91
100
100
100
100
94
88
89
99

Medium Clouds (% Sky Obscured)

100
100
100
100
100
96
77
56
37
23
24
96
48
100
100
100
98
100
73
63
95
100
100
100

High Clouds (% Sky Obscured)

100
100
100
100
100
10
5
10
0
0
0
5
0
0
1
0
25
100
100
20
20
95
90
90

ISS Passover

Visibility (miles)

0
0
0
2
4
9
3
2
9
9
9
5
2
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
93
77
0
0
0
0
0
0

Precipitation Type

Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
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 (%)

95
95
95
95
95
95
95
95
37
40
84
95
95
95
95
95
95
95
95
95
95
95
93
81

Precipitation Amount (mm)

0.5
1.4
1.7
1.3
0.9
1.1
2.2
0.6
0
0
0.5
0.5
1.1
0.9
1.5
1.4
1.5
1.7
1.7
1.3
1.1
1
0.6
0.4

Wind Speed/Direction (mph)

7
9
10
11
13
16
17
20
21
24
24
27
27
29
34
29
25
25
23
23
22
23
22
21

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-2
-2
-1
-2
-2
-2
-1
-0
0
-1
-4
-5
-7
-8
-7
-7
-6
-6
-5
-5
-5
-5
-5
-5

Dew Point (°C)

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

Relative Humidity (%)

100
98
98
98
96
96
96
91
90
75
78
89
94
96
94
96
98
96
98
96
96
96
96
96

Pressure (mb)

1002
1000
998
996
994
991
989
986
984
983
982
980
978
977
976
979
982
984
986
987
988
989
990
991

Ozone (du)

319
322
324
327
331
332
331
335
348
359
361
358
361
362
357
361
357
361
379
376
382
380
382
379

Friday 9

Waning Gibbous 54%

00:42

11:33

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

Sun - Rise: 08:41, Set: 16:58, Transit: 12:50. Moon - Rise: 00:42, Set: 11:33. Civil Dark: 17:35 - 08:03. Nautical Dark: 18:17 - 07:21. Astro Dark: 18:57 - 06:42

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
99
99
100
99
99
98
97
97
98
98
97
95
94
93

Low Clouds (% Sky Obscured)

92
82
100
83
100
80
95
100
90
88
85
82
85
88
88
88
91
91
91
91
86
80
73
67

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
98
96
99
98
98
96
96
96
97
97
95
94
93
93

High Clouds (% Sky Obscured)

95
100
100
100
100
100
100
84
8
9
15
15
17
1
1
1
1
34
0
1
0
0
0
0

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

85
91
95
95
93
84
85
92
95
95
92
83
75
77
74
67
64
62
55
57
44
41
34
37

Precipitation Amount (mm)

0.5
0.6
0.7
0.9
0.6
0.4
0.5
0.7
0.9
0.8
0.5
0.4
0.3
0.3
0.3
0.3
0.3
0.3
0.2
0.2
0.1
0.1
0
0

Wind Speed/Direction (mph)

20
20
19
19
19
19
18
18
17
16
15
14
14
14
13
12
11
10
9
9
8
8
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
96
98
98
98
98
98
98
98
98
98
98
96
98
98
98
98
96
96
96
96
98
98
98

Pressure (mb)

991
992
992
993
994
994
995
996
996
997
998
999
999
1000
1001
1002
1004
1005
1006
1007
1008
1009
1010
1011

Ozone (du)

384
386
384
389
397
401
401
404
409
406
397
390
390
391
394
392
386
383
384
381
386
386
384
382

Saturday 10

Third Quarter 45%

01:54

11:46

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

Sun - Rise: 08:41, Set: N/A, Transit: 12:50. Moon - Rise: 01:54, Set: 11:46. Civil Dark: 17:37 - 08:02. Nautical Dark: 18:18 - 07:21. Astro Dark: 18:58 - 06:41

Total Clouds (% Sky Obscured)

92
92
77
65
54
57
56
63
49
35
23
27
32
35
23
14
23
28
47
85
87
90
92
95

Low Clouds (% Sky Obscured)

61
61
46
22
5
0
5
5
4
0
0
0
5
8
0
0
1
2
2
0
0
2
2
9

Medium Clouds (% Sky Obscured)

87
40
16
13
10
9
9
9
6
4
0
0
0
0
1
2
3
17
28
36
45
46
46
49

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
6
13
19
13
7
1
5
8
16
24
31
38
59

ISS Passover

Visibility (miles)

0
0
1
1
2
2
3
7
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 (%)

33
33
22
21
6
18
3
2
0
1
1
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-1
-2
-2
-3
-4
-5
-5
-5
-6
-7
-7
-7
-7
-7
-7
-6
-7
-7
-7
-8
-9
-8
-6
-4

Relative Humidity (%)

96
96
92
89
87
87
87
86
82
82
81
82
81
82
82
84
81
76
72
65
58
60
70
81

Pressure (mb)

1012
1014
1015
1016
1017
1018
1019
1020
1020
1021
1021
1022
1022
1022
1022
1022
1023
1023
1023
1022
1022
1021
1021
1020

Ozone (du)

376
375
373
371
371
370
370
370
370
372
371
368
364
362
356
348
335
330
329
328
324
324
327
330

Sunday 11

Waning Crescent 35%

03:06

12:01

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

Sun - Rise: 08:40, Set: 17:00, Transit: 12:51. Moon - Rise: 03:06, Set: 12:01. Civil Dark: 17:38 - 08:02. Nautical Dark: 18:19 - 07:21. Astro Dark: 18:59 - 06:41

Total Clouds (% Sky Obscured)

97
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99

Low Clouds (% Sky Obscured)

26
51
39
22
18
34
50
67
100
100
100
100
100
100
90
91
91
93
94
96
96
96
96
96

Medium Clouds (% Sky Obscured)

46
43
49
94
100
100
100
100
100
100
100
100
100
100
97
98
99
100
100
100
79
55
33
25

High Clouds (% Sky Obscured)

79
100
100
100
100
99
98
97
98
99
100
100
100
100
100
100
100
100
100
100
67
32
0
2

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

0
0
0
0
1
8
14
21
45
75
95
83
45
30
24
15
6
17
21
20
39
50
54
65

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.3
0.9
0.5
0
0
0
0
0
0
0
0
0
0
0
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
86
83
84
84
84
83
84
84
86
91
98
96
89
86
89
93
94
96
98
98
98
100
100

Pressure (mb)

1019
1019
1018
1017
1016
1015
1015
1014
1013
1012
1011
1010
1009
1009
1008
1009
1009
1009
1009
1009
1009
1009
1009
1009

Ozone (du)

328
331
333
335
326
315
312
312
313
312
312
311
316
320
321
323
325
327
328
329
330
328
326
324

Monday 12

Waning Crescent 26%

04:18

12:21

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

Sun - Rise: 08:39, Set: 17:01, Transit: 12:51. Moon - Rise: 04:18, Set: 12:21. Civil Dark: 17:39 - 08:01. Nautical Dark: 18:21 - 07:20. Astro Dark: 19:00 - 06:41

Total Clouds (% Sky Obscured)

98
98
94
92
89
92
95
98
99
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

95
95
89
84
80
91
92
92
93
92
90
89
89
90
90
92
93
90
90
89
90
87
88
75

Medium Clouds (% Sky Obscured)

12
8
7
6
5
30
52
74
84
90
95
97
98
100
100
100
100
100
99
99
99
99
100
100

High Clouds (% Sky Obscured)

5
7
8
9
5
14
20
29
53
76
100
100
100
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
4
6
7
8
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

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

Precipitation Probability (%)

71
77
61
44
15
14
11
2
2
1
0
3
6
8
38
58
76
83
85
81
77
72
67
61

Precipitation Amount (mm)

0.4
0.5
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.5
0.6
0.6
0.5
0.4
0.3
0.3
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

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

Pressure (mb)

1010
1010
1010
1011
1011
1011
1012
1012
1012
1012
1012
1012
1012
1012
1011
1011
1011
1011
1011
1011
1011
1011
1011
1010

Ozone (du)

323
321
319
318
316
315
313
311
309
309
309
309
310
312
313
314
315
317
319
322
325
324
323
323

Tuesday 13

Waning Crescent 18%

05:30

12:48

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
11 Bad
12 Bad

Sun - Rise: 08:38, Set: 17:03, Transit: 12:51. Moon - Rise: 05:30, Set: 12:48. Civil Dark: 17:41 - 08:01. Nautical Dark: 18:22 - 07:19. Astro Dark: 19:01 - 06:40

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

60
41
45
47
57
52
46
39
43
48
53
50
50
43
56
69
82
85
88
91

Medium Clouds (% Sky Obscured)

100
100
100
100
99
99
100
100
99
98
96
96
96
97
97
96
96
97
99
100

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

7
8
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

Precipitation Type

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

Precipitation Probability (%)

51
39
37
31
21
25
21
6
18
25
34
46
59
66
56
43
30
48
58
64

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8

Feels Like (°C)

3
3
3
4
4
3
3
3
3
3
3
3
3
3
3
4
4
4
5
4

Dew Point (°C)

7
6
6
6
6
6
6
6
6
6
6
7
7
7
7
7
7
7
6
6

Relative Humidity (%)

93
91
90
90
90
88
88
90
90
91
91
93
93
95
95
93
93
91
88
85

Pressure (mb)

1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1009
1009
1009
1010
1010
1010
1010

Ozone (du)

324
325
326
327
327
328
328
329
330
330
331
332
331
330
329
328
328
327
344
360

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

Generated: 07/01/26 17:00:19. Forecast: 07/01/26 to 13/01/26. Timezone: UTC+1.00