Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 23

First Quarter 53%

No Rise

02:57

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

Sun - Rise: 05:41, Set: 21:36, Transit: 13:39. Moon - Rise: No Rise, Set: 02:57. Civil Dark: 22:19 - 04:58. Nautical Dark: 23:18 - 03:58. Astro Dark: 01:03 - 02:06

Total Clouds (% Sky Obscured)

6
4
3
0
0
0
1
1
1
20
1
35
91
37
18
22
7
22
16
0
4
5
0
3

Low 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

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

0
0
0
0
0
0
1
1
1
20
1
34
91
37
18
22
7
20
16
0
4
5
0
3

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 (%)

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 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)

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

Chance of Frost

Temperature (°C)

28
29
30
29
29
29
27
25
23
21
19
18
18
17
16
16
15
16
18
20
22
24
25
27

Feels Like (°C)

30
31
32
32
32
32
31
28
26
23
21
20
19
18
17
17
16
17
19
20
22
25
26
27

Dew Point (°C)

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

Relative Humidity (%)

45
45
45
46
49
56
65
77
81
84
86
86
86
86
87
89
89
87
79
74
65
59
56
54

Pressure (mb)

1027
1027
1027
1027
1027
1027
1027
1027
1028
1028
1029
1029
1029
1029
1029
1029
1030
1030
1030
1031
1031
1031
1031
1031

Ozone (du)

342
342
339
336
333
330
329
327
326
325
326
325
326
326
325
323
322
321
322
318
314
314
313
315

Sunday 24

Waxing Gibbous 64%

14:19

03:09

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

Sun - Rise: 05:40, Set: 21:37, Transit: 13:39. Moon - Rise: 14:19, Set: 03:09. Civil Dark: 22:20 - 04:57. Nautical Dark: 23:20 - 03:56. Astro Dark: 01:12 - 01:54

Total Clouds (% Sky Obscured)

0
6
6
45
44
13
0
0
3
1
2
1
1
1
5
14
2
0
0
1
1
2
4
1

Low Clouds (% Sky Obscured)

0
3
3
22
23
11
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium 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

High Clouds (% Sky Obscured)

0
6
6
30
26
12
0
0
1
0
0
1
1
1
5
13
2
0
0
0
1
2
2
0

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 (%)

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

Chance of Frost

Temperature (°C)

28
29
29
29
29
28
27
25
23
21
20
19
18
17
16
16
15
16
18
21
23
24
26
27

Feels Like (°C)

29
29
30
29
29
29
27
25
23
22
22
21
19
18
17
17
16
17
19
20
23
25
26
27

Dew Point (°C)

17
17
17
17
17
18
20
19
17
16
16
15
14
13
12
12
11
12
13
14
14
14
14
14

Relative Humidity (%)

52
50
49
48
49
54
63
68
69
74
77
77
76
76
74
75
77
78
72
65
59
53
49
45

Pressure (mb)

1031
1030
1030
1030
1030
1030
1030
1030
1030
1031
1031
1031
1031
1031
1031
1031
1031
1032
1032
1032
1032
1032
1032
1031

Ozone (du)

317
317
318
317
316
316
316
315
314
314
315
314
314
314
314
314
313
313
314
313
314
315
315
315

Monday 25

Waxing Gibbous 74%

15:33

03:21

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

Sun - Rise: 05:39, Set: 21:39, Transit: 13:39. Moon - Rise: 15:33, Set: 03:21. Civil Dark: 22:21 - 04:55. Nautical Dark: 23:22 - 03:54. Astro Dark: 01:24 - N/A

Total Clouds (% Sky Obscured)

1
1
1
1
5
1
1
1
0
0
1
2
2
2
3
7
8
6
6
4
3
3
2
2

Low Clouds (% Sky Obscured)

0
0
0
0
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium 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

High Clouds (% Sky Obscured)

0
0
0
0
0
1
1
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
2

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 (%)

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

Chance of Frost

Temperature (°C)

28
28
29
29
28
28
27
24
22
20
19
18
18
17
17
16
16
16
19
21
23
25
26
28

Feels Like (°C)

28
28
29
29
29
29
28
26
23
22
21
20
19
19
17
17
16
17
19
21
23
26
27
28

Dew Point (°C)

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

Relative Humidity (%)

42
41
41
41
45
48
57
62
68
71
72
76
78
79
81
82
83
82
75
68
61
56
52
48

Pressure (mb)

1031
1031
1031
1030
1030
1030
1030
1030
1030
1031
1031
1031
1030
1030
1030
1030
1030
1030
1030
1030
1029
1029
1029
1028

Ozone (du)

315
314
315
315
315
316
317
316
316
315
315
314
314
314
314
314
313
313
311
312
312
313
315
316

Tuesday 26

Waxing Gibbous 82%

16:46

03:33

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

Sun - Rise: 05:38, Set: 21:40, Transit: 13:39. Moon - Rise: 16:46, Set: 03:33. Civil Dark: 22:23 - 04:54. Nautical Dark: 23:24 - 03:53. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

4
6
8
6
5
3
2
1
0
1
0
0
1
2
4
11
16
23
31
36
37
23
11
0

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
1
2
4
9
16
23
15
6
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
11
20
29
20
9
0

High Clouds (% Sky Obscured)

4
6
8
6
5
3
2
1
0
0
0
0
0
0
0
0
0
0
8
16
24
16
8
0

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 (%)

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

Chance of Frost

Temperature (°C)

29
30
30
30
30
29
28
26
23
21
20
19
17
16
16
15
15
15
16
17
18
20
21
22

Feels Like (°C)

29
30
30
31
30
30
29
27
25
22
21
19
18
17
16
15
15
15
15
16
17
18
20
21

Dew Point (°C)

15
14
14
15
16
17
19
19
18
16
15
14
13
13
13
13
14
13
13
13
12
12
11
11

Relative Humidity (%)

41
37
37
40
44
48
57
65
70
73
72
73
76
81
86
90
92
89
83
74
66
59
54
50

Pressure (mb)

1028
1027
1027
1026
1026
1026
1026
1026
1026
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027

Ozone (du)

317
316
315
316
317
319
319
319
320
321
321
322
322
322
322
321
321
321
322
322
323
324
325
325

Wednesday 27

Waxing Gibbous 89%

17:59

03:47

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

Sun - Rise: 05:37, Set: 21:41, Transit: 13:39. Moon - Rise: 17:59, Set: 03:47. Civil Dark: 22:24 - 04:53. Nautical Dark: 23:26 - 03:51. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

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

Low 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

Medium 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

High Clouds (% Sky Obscured)

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

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 (%)

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

Chance of Frost

Temperature (°C)

23
23
24
24
23
22
21
19
17
16
15
14
13
13
12
11
11
12
13
15
17
18
20
21

Feels Like (°C)

21
22
22
22
22
21
19
17
16
15
14
13
11
11
11
11
10
10
10
12
12
13
14
15

Dew Point (°C)

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

Relative Humidity (%)

45
42
39
40
44
46
50
54
54
56
57
59
60
62
62
63
62
61
60
52
47
40
39
37

Pressure (mb)

1027
1026
1026
1025
1025
1025
1025
1025
1025
1025
1026
1026
1026
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1024

Ozone (du)

326
327
327
329
331
332
333
334
333
332
332
331
332
332
332
333
334
335
336
337
339
340
340
341

Thursday 28

Waxing Gibbous 94%

19:12

04:03

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

Sun - Rise: 05:36, Set: 21:42, Transit: 13:40. Moon - Rise: 19:12, Set: 04:03. Civil Dark: 22:26 - 04:52. Nautical Dark: 23:28 - 03:49. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

23
43
70
65
65
65
34
19
2
13
22
30
33
36
43
51
55
69
69
66
71
68
61
58

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
7
14
28
35
47
56
63
56
53

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
2
5
5
5
6
6
6
7
7
2
1
0
0
1
1

High Clouds (% Sky Obscured)

23
43
70
65
40
40
20
10
1
11
22
30
33
36
43
51
55
69
69
66
71
68
61
58

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 (%)

0
0
0
0
0
0
1
0
0
0
0
0
7
12
17
20
17
2
2
1
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)

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

Chance of Frost

Temperature (°C)

23
23
24
24
24
23
22
20
18
16
16
15
14
14
13
13
14
15
16
18
19
21
22
23

Feels Like (°C)

15
22
22
22
23
23
23
21
21
20
20
19
18
13
14
14
14
13
13
17
17
17
18
19

Dew Point (°C)

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

Relative Humidity (%)

34
35
35
37
40
44
49
52
56
60
60
61
61
62
63
63
62
61
59
54
48
44
41
40

Pressure (mb)

1024
1023
1023
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1021
1022
1022
1022
1022
1022
1022
1022
1022

Ozone (du)

341
341
342
342
343
343
344
345
345
346
345
344
343
341
339
337
336
335
335
335
335
336
338
340

Friday 29

Waxing Gibbous 98%

20:25

04:25

14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 OK
22 OK
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 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)

64
66
77
70
67
59
50
42
34
54
73
89
87
85
83
87
90
93

Low Clouds (% Sky Obscured)

43
39
29
28
27
26
20
12
5
18
31
43
41
43
40
42
44
50

Medium Clouds (% Sky Obscured)

1
1
0
0
0
0
3
6
11
17
24
33
35
35
23
7
2
1

High Clouds (% Sky Obscured)

64
56
57
45
35
38
41
42
34
46
57
78
79
75
67
78
89
93

ISS Passover

Visibility (miles)

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

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

25
25
25
25
24
22
21
19
18
16
16
15
15
15
15
14
15
16

Feels Like (°C)

19
26
25
25
25
24
24
21
21
20
20
19
18
14
15
15
15
15

Dew Point (°C)

9
9
9
9
9
10
10
10
9
8
8
8
8
8
9
9
9
9

Relative Humidity (%)

37
37
36
36
39
44
50
53
56
59
61
61
62
64
67
69
67
65

Pressure (mb)

1022
1022
1022
1021
1021
1022
1022
1022
1022
1023
1023
1023
1023
1023
1022
1022
1023
1023

Ozone (du)

342
342
341
341
339
338
336
335
335
334
333
333
333
333
334
334
335
335

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

Generated: 23/05/26 14:11:16. Forecast: 23/05/26 to 29/05/26. Timezone: UTC+2.00