Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 4

Waning Gibbous 81%

01:15

09:49

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
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 05:31, Set: 21:51, Transit: 13:41. Moon - Rise: 01:15, Set: 09:49. Civil Dark: 22:36 - 04:46. Nautical Dark: 23:40 - 03:40. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

64
64
94
88
91
94
97
98
92
98
88
81
80
88
88
89
84
97
88
50
81
70
51
68

Low Clouds (% Sky Obscured)

60
64
84
76
79
75
75
82
77
90
72
64
71
63
72
73
71
60
62
35
32
0
0
0

Medium Clouds (% Sky Obscured)

17
15
13
20
31
37
43
44
37
43
32
33
35
50
54
37
27
63
46
18
34
35
18
24

High Clouds (% Sky Obscured)

0
58
54
7
1
0
0
0
0
0
0
0
0
1
0
0
1
1
1
0
0
20
25
30

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

0
0
1
0
2
7
13
14
19
22
15
52
55
54
62
63
57
65
53
40
34
7
15
13

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

13
12
13
14
13
13
13
12
11
12
12
12
13
11
10
11
10
9
10
8
8
5
4
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

12
11
10
9
9
8
8
9
9
10
10
11
12
13
13
12
14
14
15
15
15
16
14
13

Dew Point (°C)

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

Relative Humidity (%)

78
80
82
77
79
80
80
83
86
86
84
82
73
74
72
66
73
68
66
72
72
74
75
80

Pressure (mb)

1006
1007
1007
1007
1008
1008
1009
1009
1010
1011
1012
1012
1013
1013
1014
1014
1014
1014
1014
1014
1014
1015
1015
1015

Ozone (du)

400
400
398
398
399
398
397
395
391
382
379
377
376
373
371
368
367
367
379
374
365
362
362
363

Friday 5

Waning Gibbous 72%

01:33

11:03

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
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 05:30, Set: 21:52, Transit: 13:41. Moon - Rise: 01:33, Set: 11:03. Civil Dark: 22:37 - 04:45. Nautical Dark: 23:42 - 03:38. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

78
100
100
100
100
100
100
100
100
95
92
94
72
93
100
100
94
73
100
100
89
96
97
90

Low Clouds (% Sky Obscured)

0
0
13
0
10
3
0
4
39
44
33
41
0
63
43
79
66
36
24
35
43
38
80
82

Medium Clouds (% Sky Obscured)

26
21
16
85
94
100
100
96
100
88
77
91
72
88
100
59
6
16
99
100
86
94
95
70

High Clouds (% Sky Obscured)

50
100
100
100
100
100
100
100
98
0
0
0
0
0
7
80
63
25
100
100
3
68
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
4
3
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
Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
1
17
25
26
11
4
7
21
10
49
95
78
70
78
95
30
40
41
28

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.7
0.5
0.4
0.2
2.2
0
0
0
0

Wind Speed/Direction (mph)

5
5
6
6
7
7
8
9
9
10
12
11
12
13
15
15
15
18
17
11
5
7
13
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
87
89
89
87
86
87
84
86
86
83
80
78
78
73
77
73
71
79
83
87
85
83
79

Pressure (mb)

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

Ozone (du)

364
364
366
367
366
367
368
370
372
374
375
375
372
373
381
396
397
395
387
387
393
389
389
391

Saturday 6

Waning Gibbous 62%

01:48

12:18

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
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 05:30, Set: 21:52, Transit: 13:41. Moon - Rise: 01:48, Set: 12:18. Civil Dark: 22:38 - 04:45. Nautical Dark: 23:43 - 03:37. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

92
85
93
97
92
97
96
96
96
91
74
83
76
100
81
68
78
97
100
92
92
95
97
100

Low Clouds (% Sky Obscured)

84
76
74
95
87
86
93
92
90
84
71
79
70
100
75
56
68
73
78
76
47
40
38
30

Medium Clouds (% Sky Obscured)

43
44
44
50
47
57
34
31
35
19
2
2
12
48
36
25
34
26
25
10
13
15
38
20

High Clouds (% Sky Obscured)

0
0
0
5
0
1
0
0
0
3
10
15
15
20
2
1
1
47
99
32
62
75
87
100

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 (%)

27
6
7
4
3
6
2
1
1
0
0
1
1
6
0
0
0
0
0
0
3
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)

17
19
19
19
18
17
17
15
14
13
13
14
13
11
11
11
11
9
9
9
7
6
5
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

10
9
9
9
9
9
9
10
10
10
11
11
12
14
14
16
17
17
17
17
17
17
17
15

Dew Point (°C)

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

Relative Humidity (%)

78
79
79
80
80
80
80
83
80
80
80
75
73
68
60
52
50
49
51
62
69
70
76
81

Pressure (mb)

1013
1013
1014
1014
1015
1016
1016
1017
1018
1019
1020
1021
1021
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1023

Ozone (du)

385
380
376
372
368
367
365
365
365
366
364
365
365
365
365
364
362
359
358
358
358
358
358
357

Sunday 7

Waning Gibbous 52%

02:01

13:33

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
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 05:29, Set: 21:53, Transit: 13:41. Moon - Rise: 02:01, Set: 13:33. Civil Dark: 22:39 - 04:44. Nautical Dark: 23:45 - 03:36. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

96
82
77
92
96
99
100
100
100
100
100
100
100
100
100
100
100
100
99
97
98
98
98
98

Low Clouds (% Sky Obscured)

31
32
28
39
55
66
60
47
38
25
13
0
27
51
77
69
57
50
47
59
76
79
76
85

Medium Clouds (% Sky Obscured)

19
20
16
16
17
17
44
60
89
100
98
100
100
100
100
100
100
100
97
93
93
91
89
87

High Clouds (% Sky Obscured)

81
58
40
65
83
99
81
64
42
57
78
100
99
98
96
68
40
12
8
4
5
29
53
77

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
5
8
4
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
None
Light Rain
Light Rain
Light Rain
Light Rain
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
4
13
78
95
95
95
47
35

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.6
0.7
0.9
1.1
0
0

Wind Speed/Direction (mph)

3
3
3
3
4
4
4
4
4
6
6
6
6
7
7
8
8
8
7
9
9
9
11
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

15
14
14
14
13
13
12
13
13
14
15
16
18
18
19
19
19
20
20
18
18
16
13
12

Dew Point (°C)

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

Relative Humidity (%)

83
83
84
86
86
87
89
87
83
77
72
65
61
60
59
57
56
57
65
72
77
86
86
92

Pressure (mb)

1023
1022
1022
1022
1021
1021
1020
1020
1020
1019
1019
1018
1017
1017
1016
1015
1015
1014
1013
1013
1012
1012
1012
1013

Ozone (du)

357
360
361
359
357
357
355
353
354
353
352
352
351
352
352
355
359
364
369
372
370
373
377
382

Monday 8

Third Quarter 41%

02:14

14:50

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
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 05:29, Set: 21:54, Transit: 13:41. Moon - Rise: 02:14, Set: 14:50. Civil Dark: 22:39 - 04:43. Nautical Dark: 23:46 - 03:35. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

99
99
100
100
100
100
99
98
71
65
56
48
59
91
100
99
97
96
81
67
57
52
57
55

Low Clouds (% Sky Obscured)

82
45
57
65
63
55
60
56
50
47
43
41
50
74
75
69
63
56
48
35
25
16
8
0

Medium Clouds (% Sky Obscured)

69
28
65
74
88
100
97
84
40
28
15
0
11
18
30
43
54
60
45
30
27
44
57
55

High Clouds (% Sky Obscured)

85
92
100
100
100
100
67
33
0
0
0
0
32
63
95
99
97
96
67
34
1
1
0
2

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
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 (%)

27
33
42
33
25
15
16
9
7
10
6
5
21
30
28
29
29
29
26
21
9
12
7
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)

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

Chance of Frost

Temperature (°C)

14
13
12
12
12
11
11
10
10
11
12
14
15
16
16
16
17
18
18
18
17
16
14
13

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
93
95
95
95
93
95
95
93
86
76
68
56
52
56
55
51
48
45
49
53
57
61
65

Pressure (mb)

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

Ozone (du)

388
389
389
394
397
404
410
411
414
415
416
417
416
415
411
407
403
400
397
396
394
393
391
388

Tuesday 9

Waning Crescent 30%

02:27

16:11

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
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 05:29, Set: 21:55, Transit: 13:42. Moon - Rise: 02:27, Set: 16:11. Civil Dark: 22:40 - 04:43. Nautical Dark: 23:47 - 03:35. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

49
48
54
60
66
72
70
68
67
76
75
73
85
93
100
91
82
73
70
68
64
61
60
55

Low Clouds (% Sky Obscured)

9
17
24
32
40
49
48
43
40
45
49
57
77
89
95
87
78
65
58
52
45
31
17
1

Medium Clouds (% Sky Obscured)

49
48
35
31
28
24
44
64
67
76
75
73
85
93
96
69
41
13
8
4
0
1
2
5

High Clouds (% Sky Obscured)

2
0
0
0
0
5
15
44
51
63
67
55
44
66
97
67
33
0
7
13
20
15
14
10

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

Precipitation Probability (%)

2
3
1
2
2
0
2
2
1
13
22
25
50
59
64
60
54
48
42
34
24
17
9
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.3
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

11
11
10
9
9
9
9
10
10
11
12
13
14
14
13
13
14
15
16
16
16
16
15
13

Feels Like (°C)

11
10
10
10
7
7
7
7
7
7
9
9
9
10
10
10
10
11
12
13
13
14
14
13

Dew Point (°C)

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

Relative Humidity (%)

70
74
80
85
85
87
88
84
81
77
75
72
69
72
76
80
73
64
57
59
61
63
67
71

Pressure (mb)

1018
1018
1018
1018
1018
1018
1017
1018
1018
1018
1018
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019

Ozone (du)

385
383
380
377
375
372
370
369
369
369
372
374
377
381
386
391
388
384
380
378
376
374
372
369

Wednesday 10

Waning Crescent 20%

02:41

17:37

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
18 Bad
19 Bad

Sun - Rise: 05:28, Set: 21:55, Transit: 13:42. Moon - Rise: 02:41, Set: 17:37. Civil Dark: 22:41 - 04:43. Nautical Dark: 23:49 - 03:34. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

67
81
93
92
91
94
95
97
98
94
90
87
89
92
93
95
98
100
100
99
99

Low Clouds (% Sky Obscured)

12
22
32
37
46
50
55
61
67
63
52
45
40
39
38
32
29
23
22
22
23

Medium Clouds (% Sky Obscured)

16
28
39
44
49
52
49
45
41
45
49
50
59
67
74
78
84
92
93
92
91

High Clouds (% Sky Obscured)

29
46
67
78
81
80
80
78
81
82
80
74
70
75
87
95
98
97
85
74
62

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

Fog (%)

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

Precipitation Probability (%)

1
1
0
0
0
0
0
0
0
1
2
0
1
2
2
4
3
0
11
15
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

Wind Speed/Direction (mph)

5
5
6
6
6
7
7
7
8
8
8
9
9
9
9
9
10
10
11
9
7

Chance of Frost

Temperature (°C)

12
12
11
11
11
10
10
11
11
12
13
14
16
17
18
19
20
21
21
21
21

Feels Like (°C)

13
13
12
12
9
9
9
9
7
7
10
11
10
11
12
12
18
19
18
18
19

Dew Point (°C)

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

Relative Humidity (%)

76
77
79
80
83
84
87
80
75
71
65
61
58
56
53
51
50
51
52
57
62

Pressure (mb)

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

Ozone (du)

367
364
361
358
355
353
350
349
349
349
349
349
350
349
349
349
349
349
349
349
350

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

Generated: 04/06/26 22:06:53. Forecast: 04/06/26 to 10/06/26. Timezone: UTC+2.00