Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 29

Waxing Gibbous 98%

20:25

04:25

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 OK
12 Bad
13 OK
14 OK
15 Bad
16 Bad

Sun - Rise: 05:35, Set: 21:43, Transit: 13:40. Moon - Rise: 20:25, Set: 04:25. Civil Dark: 22:27 - 04:51. Nautical Dark: 23:30 - 03:48. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

68
75
80
85
100
100
100
100
99
95
69
86
83
82
56
53
99
83
38
53
28
44
100
88

Low Clouds (% Sky Obscured)

19
0
16
0
1
2
0
1
8
15
17
28
26
15
5
0
8
0
0
0
0
18
31
29

Medium Clouds (% Sky Obscured)

14
24
80
85
94
100
100
97
96
92
69
59
44
51
43
35
43
23
28
31
16
19
12
15

High Clouds (% Sky Obscured)

68
75
80
85
100
100
100
100
76
56
10
10
10
9
10
9
96
66
5
1
5
9
80
61

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
6
6
7
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
Light Rain
None
None
None
None
None
None
None
None
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

36
95
95
3
2
3
4
1
2
11
69
70
68
71
43
17
4
1
0
2
0
2
5
8

Precipitation Amount (mm)

0
0.6
0
0
0
0
0
0
0
0
0.4
0.4
0.4
0.4
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

30
29
27
26
25
24
23
22
21
20
19
19
18
18
18
19
20
22
23
25
27
28
30
30

Feels Like (°C)

30
29
28
28
26
26
24
23
22
20
19
20
19
19
19
20
21
24
25
28
29
31
31
32

Dew Point (°C)

20
21
23
23
22
21
20
19
18
17
17
17
17
17
17
17
17
17
17
17
18
18
19
18

Relative Humidity (%)

56
63
79
79
83
83
84
84
84
84
84
91
92
93
92
88
80
75
65
60
56
53
51
50

Pressure (mb)

1022
1022
1022
1022
1022
1022
1022
1022
1021
1022
1021
1021
1021
1021
1021
1021
1021
1021
1021
1020
1020
1019
1018
1017

Ozone (du)

325
323
323
323
325
327
329
328
329
332
334
334
338
341
342
339
337
334
333
332
332
333
334
334

Saturday 30

Waxing Gibbous 100%

21:36

04:54

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: 05:34, Set: 21:45, Transit: 13:40. Moon - Rise: 21:36, Set: 04:54. Civil Dark: 22:28 - 04:50. Nautical Dark: 23:32 - 03:46. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
100
100
97
97
92
89
74
48
100
100
87
100
83
100
92
100
100
100
100
99
100
100

Low Clouds (% Sky Obscured)

20
11
0
0
0
0
0
0
0
0
0
40
39
60
49
73
60
50
40
39
35
48
35
61

Medium Clouds (% Sky Obscured)

26
33
17
29
38
46
36
37
58
48
22
15
11
13
83
62
81
59
73
69
66
90
99
96

High Clouds (% Sky Obscured)

81
96
100
96
94
92
7
70
16
10
100
100
66
100
53
100
75
100
100
100
100
82
99
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
2
9
9
9
9
9
9
9
6
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
1
3
69
100
98
88
99
42
1
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

16
13
11
14
40
49
72
88
45
8
12
95
37
95
65
40
27
4
0
1
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0.3
0.7
0.2
0
0
1.8
0
1.2
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

5
5
4
5
7
6
6
3
3
3
3
3
5
6
6
7
7
8
7
9
11
12
14
13

Chance of Frost

Temperature (°C)

30
29
29
28
27
25
24
23
22
21
20
20
18
18
18
18
19
20
21
21
22
22
22
22

Feels Like (°C)

31
31
30
29
27
26
25
25
23
22
21
20
18
17
18
18
18
20
20
20
20
21
19
19

Dew Point (°C)

18
18
18
20
22
20
20
20
20
20
19
18
17
17
17
17
17
17
16
15
14
15
13
11

Relative Humidity (%)

50
51
53
62
74
76
78
84
91
94
93
92
90
93
95
93
89
84
76
68
59
61
54
51

Pressure (mb)

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

Ozone (du)

335
334
335
335
334
333
333
331
336
339
342
347
350
352
350
349
346
343
342
339
337
338
340
341

Sunday 31

Full Moon 100%

22:41

05:33

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

Sun - Rise: 05:33, Set: 21:46, Transit: 13:40. Moon - Rise: 22:41, Set: 05:33. Civil Dark: 22:30 - 04:49. Nautical Dark: 23:34 - 03:45. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
95
90
78
79
76
77
84
65
65
64
50
73
68
62
53
58
29
66
97
100
100
100
100

Low Clouds (% Sky Obscured)

29
54
61
46
35
34
7
17
5
11
21
28
40
43
39
35
35
29
22
15
41
53
56
57

Medium Clouds (% Sky Obscured)

93
56
63
45
47
47
51
48
39
34
37
27
17
7
0
0
9
0
11
22
38
98
25
24

High Clouds (% Sky Obscured)

100
95
1
0
0
0
0
0
0
0
0
1
15
21
25
18
53
3
4
37
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
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
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
5
18
28
31
20
2
1
1
0
0
0
0
0
0
0
0
1
3
10
16
2
2
3

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)

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

Chance of Frost

Temperature (°C)

22
21
20
19
18
17
16
16
16
15
14
14
13
13
13
14
16
18
19
20
21
21
21
21

Feels Like (°C)

19
18
19
19
18
17
17
15
14
14
13
14
14
11
12
13
15
18
19
19
18
18
18
19

Dew Point (°C)

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

Relative Humidity (%)

54
56
58
63
75
83
90
89
86
89
89
93
93
93
92
84
79
71
61
59
54
52
52
55

Pressure (mb)

1015
1015
1015
1015
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1017
1017
1017
1016
1016
1016
1016
1015
1015
1014

Ozone (du)

344
349
350
354
360
360
354
350
348
347
347
348
347
344
344
343
343
341
338
336
332
330
330
331

Monday 1

Waning Gibbous 97%

23:36

06:24

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: 05:33, Set: 21:47, Transit: 13:40. Moon - Rise: 23:36, Set: 06:24. Civil Dark: 22:31 - 04:48. Nautical Dark: 23:35 - 03:43. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
96
91
87
91
95
100
97
94
87
94
80
71

Low Clouds (% Sky Obscured)

51
48
46
33
18
4
16
35
52
54
54
56
62
70
77
76
77
79
74
67
53
63
54
46

Medium Clouds (% Sky Obscured)

26
28
23
23
97
92
99
99
98
100
100
100
93
83
76
85
85
100
95
64
32
44
50
57

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
71
43
14
43
71
100
71
45
14
40
68
71

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
4
9
8
9
7
2
9
9
6
8
6
4
8
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
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain
None
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain

Precipitation Probability (%)

1
1
14
1
2
3
20
32
43
83
95
85
71
71
95
95
63
52
67
82
92
89
75
85

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.5
0.6
0.3
0.2
0.2
1.5
1.7
0
0
0.2
0.4
0.7
0.6
0.3
0.5

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

21
21
21
20
19
19
18
17
17
17
16
16
16
16
16
16
16
17
17
17
18
19
18
18

Feels Like (°C)

19
19
19
19
19
18
17
16
15
16
16
15
15
15
15
14
16
15
15
15
16
17
16
17

Dew Point (°C)

12
13
13
14
14
13
13
12
12
12
13
14
14
14
15
15
16
15
16
16
16
16
15
14

Relative Humidity (%)

57
60
62
67
71
71
71
71
70
72
82
86
90
92
92
95
96
92
92
92
89
80
85
73

Pressure (mb)

1014
1013
1013
1012
1012
1012
1011
1011
1010
1010
1009
1009
1008
1007
1007
1007
1007
1007
1007
1007
1006
1006
1006
1006

Ozone (du)

331
332
332
334
334
335
337
339
341
344
345
350
355
358
360
360
365
367
371
378
382
386
389
392

Tuesday 2

Waning Gibbous 93%

00:19

07:26

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: 05:32, Set: 21:48, Transit: 13:40. Moon - Rise: 00:19, Set: 07:26. Civil Dark: 22:32 - 04:47. Nautical Dark: 23:37 - 03:42. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

65
100
64
51
39
75
78
80
85
88
92
95
93
89
67
67
74
85
88
92
96
97
97
97

Low Clouds (% Sky Obscured)

37
58
29
29
32
65
73
79
85
88
90
92
87
79
54
53
56
53
59
63
71
76
82
87

Medium Clouds (% Sky Obscured)

39
67
3
2
0
0
0
0
0
3
8
12
22
25
35
48
40
17
30
48
66
68
70
72

High Clouds (% Sky Obscured)

65
98
64
51
39
21
14
7
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
5

ISS Passover

Visibility (miles)

8
9
9
9
9
9
9
6
9
7
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

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

Precipitation Probability (%)

84
74
68
48
25
8
44
38
22
28
25
11
11
10
5
23
29
33
33
36
43
46
47
46

Precipitation Amount (mm)

0.4
0.3
0.3
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)

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

Chance of Frost

Temperature (°C)

19
18
17
16
15
14
14
14
14
13
13
13
13
13
13
14
14
15
16
17
18
19
18
17

Feels Like (°C)

17
16
15
15
14
13
11
11
11
10
10
10
10
10
10
12
12
12
12
12
12
12
15
15

Dew Point (°C)

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

Relative Humidity (%)

70
72
78
85
90
95
90
90
93
93
95
95
92
93
93
89
84
80
74
68
64
59
66
74

Pressure (mb)

1006
1006
1006
1006
1007
1007
1007
1007
1007
1008
1008
1008
1008
1009
1009
1010
1008
1008
1008
1008
1008
1007
1007
1007

Ozone (du)

394
395
396
399
398
399
396
391
389
384
381
378
372
366
362
357
356
354
353
351
350
349
349
349

Wednesday 3

Waning Gibbous 88%

00:51

08:35

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: 05:31, Set: 21:49, Transit: 13:41. Moon - Rise: 00:51, Set: 08:35. Civil Dark: 22:33 - 04:47. Nautical Dark: 23:39 - 03:41. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

89
81
69
77
89
100
93
85
76
83
91
99
100
100
100
99
98
97
98
98
99
97
97
97

Low Clouds (% Sky Obscured)

79
68
57
41
28
22
45
42
34
31
27
22
28
38
50
59
66
76
79
78
76
68
58
47

Medium Clouds (% Sky Obscured)

65
59
49
44
38
33
24
18
11
27
46
66
76
87
98
89
81
74
76
80
83
62
41
21

High Clouds (% Sky Obscured)

10
10
10
39
68
98
87
77
65
77
88
99
100
100
100
98
93
85
77
67
61
60
60
30

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
8
7
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
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain

Precipitation Probability (%)

51
54
54
56
54
53
42
29
4
9
10
7
13
18
28
45
58
67
95
95
95
95
95
63

Precipitation Amount (mm)

0
0
0
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.3
0.7
1.2
1.9
1.1
0.7
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
86
89
90
92
90
89
87
87
86
87
87
87
86
84
83
79
73
69
67
65
63
58
54

Pressure (mb)

1007
1007
1006
1006
1006
1006
1007
1006
1006
1006
1006
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005

Ozone (du)

349
351
354
356
362
369
376
374
373
372
371
371
370
371
373
374
373
373
372
371
370
369
367
365

Thursday 4

Waning Gibbous 81%

01:15

09:49

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

Sun - Rise: 05:31, Set: 21:50, Transit: 13:41. Moon - Rise: 01:15, Set: 09:49. Civil Dark: 22:35 - 04:46. Nautical Dark: 23:40 - 03:40. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

94
93
92
94
96
97
98
99
100
100
100
100
100
100
100
93
91
89
88
87
88

Low Clouds (% Sky Obscured)

51
54
60
56
52
48
51
55
59
60
61
62
63
66
65
66
67
70
59
50
48

Medium Clouds (% Sky Obscured)

20
18
16
31
50
69
84
92
100
100
99
99
99
99
100
93
91
89
70
47
24

High Clouds (% Sky Obscured)

60
35
55
49
42
33
52
72
86
87
93
100
77
51
30
22
15
0
0
0
0

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

57
52
47
58
61
55
55
55
57
58
56
53
60
66
66
66
60
42
35
31
25

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

19
18
18
17
16
15
14
14
14
13
13
13
12
12
12
12
13
13
13
14
14

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

50
57
64
72
77
82
87
87
90
92
93
93
96
95
96
96
95
95
93
92
90

Pressure (mb)

1005
1005
1005
1005
1005
1006
1006
1006
1006
1006
1006
1006
1006
1006
1007
1007
1007
1008
1008
1009
1009

Ozone (du)

362
361
359
357
356
354
353
352
351
350
351
353
354
354
354
355
359
363
366
365
363

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

Generated: 29/05/26 17:48:40. Forecast: 29/05/26 to 04/06/26. Timezone: UTC+2.00