Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 21

Waxing Crescent 31%

11:39

02:24

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

Sun - Rise: 05:43, Set: 21:33, Transit: 13:39. Moon - Rise: 11:39, Set: 02:24. Civil Dark: 22:15 - 05:01. Nautical Dark: 23:14 - 04:02. Astro Dark: 00:49 - 02:22

Total Clouds (% Sky Obscured)

54
52
44
27
3
3
4
5
10
6
8
10
74
96
95
70
12
6
0
23
37
46
41
36

Low Clouds (% Sky Obscured)

54
32
6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
23
37
46
41
36

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
39
60
58
10
5
0
0
0
0
0
0

High Clouds (% Sky Obscured)

10
6
2
1
0
1
1
1
10
6
7
10
74
93
79
17
2
1
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)

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

Chance of Frost

Temperature (°C)

21
21
21
20
19
17
16
15
14
14
13
13
12
12
13
15
17
19
21
22
24
24
25
25

Feels Like (°C)

20
20
20
21
21
19
17
16
15
15
14
13
11
11
12
14
17
20
22
24
25
26
26
27

Dew Point (°C)

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

Relative Humidity (%)

55
59
59
66
70
76
77
78
79
82
84
84
86
86
83
78
70
67
63
58
54
51
48
47

Pressure (mb)

1028
1027
1027
1027
1027
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1027
1027

Ozone (du)

332
330
330
331
331
331
332
332
332
332
331
331
332
333
334
336
338
339
341
341
341
342
342
342

Friday 22

Waxing Crescent 42%

13:01

02:42

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 Bad
06 Bad
07 Bad
08 Good
09 Bad
10 Bad
11 OK
12 Good
13 Good
14 Good
15 Good
16 Good

Sun - Rise: 05:42, Set: 21:35, Transit: 13:39. Moon - Rise: 13:01, Set: 02:42. Civil Dark: 22:17 - 04:59. Nautical Dark: 23:16 - 04:00. Astro Dark: 00:56 - 02:15

Total Clouds (% Sky Obscured)

28
0
0
0
0
0
0
0
0
0
0
10
71
86
53
7
100
58
37
0
0
0
1
1

Low Clouds (% Sky Obscured)

28
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
1
0
0
0
0
0
1
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
10
71
86
52
7
99
58
37
0
0
0
1
1

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)

3
2
1
1
1
1
2
2
2
3
2
2
3
2
2
2
2
1
2
2
3
3
3
3

Chance of Frost

Temperature (°C)

25
25
25
24
23
21
19
18
17
16
15
15
14
14
15
17
20
22
24
25
26
27
28
28

Feels Like (°C)

27
27
27
28
26
23
22
20
19
18
18
17
16
16
17
19
22
23
24
26
27
28
30
30

Dew Point (°C)

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

Relative Humidity (%)

47
47
50
61
66
69
71
73
76
78
78
79
80
83
80
74
69
64
60
57
51
46
44
43

Pressure (mb)

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

Ozone (du)

340
338
337
336
337
338
339
341
342
340
338
336
334
334
334
332
330
331
330
331
334
338
344
347

Saturday 23

First Quarter 53%

14:19

02:57

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 OK
06 OK
07 OK
08 Good
09 Good
10 Good
11 Good
12 Good
13 Good
14 OK
15 OK
16 OK

Sun - Rise: 05:41, Set: 21:36, Transit: 13:39. Moon - Rise: 14:19, 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)

1
1
1
0
0
0
0
0
0
0
1
0
26
30
25
2
4
0
0
9
14
19
23
26

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
25
29
6
0
0
0
0
9
14
19
23
26

Medium Clouds (% Sky Obscured)

1
1
1
0
0
0
0
0
0
0
0
0
8
4
10
0
1
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

1
0
0
0
0
0
0
0
0
0
1
0
0
1
1
1
1
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
28
100
85
85
85
85
85
85
85
85
85
85

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

43
44
51
60
67
68
68
69
71
73
74
76
78
79
79
72
67
61
56
52
49
45
45
43

Pressure (mb)

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

Ozone (du)

346
346
346
342
337
333
331
331
329
326
326
327
326
326
325
323
321
320
321
320
320
321
321
321

Sunday 24

Waxing Gibbous 64%

15:33

03:09

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
14 Good
15 Good
16 Good

Sun - Rise: 05:40, Set: 21:37, Transit: 13:39. Moon - Rise: 15:33, 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)

25
20
15
10
5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0

Low Clouds (% Sky Obscured)

25
20
15
10
5
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
1
1
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
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

85
85
85
85
85
85
85
85
85
85
85
85
85
85
85
85
85
85
85
85
85
85
85
85

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

32
31
31
30
28
26
25
24
24
23
23
22
22
22
23
24
26
28
30
31
32
32
33
32

Dew Point (°C)

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

Relative Humidity (%)

44
46
52
61
70
75
78
81
82
86
86
86
86
86
84
77
71
66
61
57
52
46
44
44

Pressure (mb)

1028
1028
1028
1028
1029
1029
1030
1030
1030
1030
1029
1029
1029
1029
1030
1030
1030
1030
1030
1030
1030
1029
1029
1029

Ozone (du)

320
320
319
317
315
313
314
313
313
312
312
313
312
312
313
314
314
314
314
314
313
312
310
309

Monday 25

Waxing Gibbous 74%

16:46

03:21

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
14 Good
15 Good
16 Good

Sun - Rise: 05:39, Set: 21:39, Transit: 13:39. Moon - Rise: 16:46, 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
2
3
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
2
3
5

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
1
1
2

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
0
0
0
0
1
1
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 (%)

85
85
85
85
85
85
85
85
85
85
85
85
85
85
85
85
85
85
85
85
85
85
85
85

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
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
9
10
4

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
8
8
8
7
5
5
5
4
4
4
3
3
3
3
3
4
4
5
6
6
7
9
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

32
30
28
27
25
23
23
22
21
21
21
20
20
20
21
23
23
25
25
26
26
28
31
30

Dew Point (°C)

16
17
17
18
17
15
15
15
15
15
15
15
15
15
15
16
15
15
15
16
17
18
18
18

Relative Humidity (%)

43
49
54
61
67
68
70
71
75
76
78
82
83
85
81
75
66
60
54
54
53
53
56
58

Pressure (mb)

1028
1028
1028
1028
1028
1029
1029
1029
1029
1029
1028
1028
1028
1028
1028
1028
1029
1029
1029
1029
1029
1028
1028
1028

Ozone (du)

310
309
309
309
310
308
308
309
312
314
315
315
313
314
315
315
315
316
316
316
316
316
316
316

Tuesday 26

Waxing Gibbous 82%

No Rise

03:33

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 Good
06 Good
07 Good
08 Good
09 Good
10 Good
11 Good
12 Good
13 Good
14 Good
15 OK
16 OK

Sun - Rise: 05:38, Set: 21:40, Transit: 13:39. Moon - Rise: No Rise, 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)

3
1
0
3
5
8
11
13
13
7
3
0
2
5
8
7
6
2
2
3
3
12
22
34

Low Clouds (% Sky Obscured)

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

Medium Clouds (% Sky Obscured)

0
0
0
0
1
1
1
2
2
1
0
0
0
1
1
1
0
0
0
0
0
4
10
12

High Clouds (% Sky Obscured)

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

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 (%)

85
85
85
85
85
85
85
85
85
85
85
85
85
85
85
85
85
85
85
85
85
85
85
85

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 (%)

11
11
6
4
2
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)

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

Chance of Frost

Temperature (°C)

26
25
23
22
20
18
17
15
14
13
12
12
12
12
13
14
16
18
21
22
23
25
25
25

Feels Like (°C)

29
29
28
28
20
19
19
18
17
17
11
11
11
11
12
12
13
14
15
16
17
18
22
22

Dew Point (°C)

18
17
16
14
12
10
9
8
8
8
7
6
6
6
7
8
8
8
8
9
9
10
10
10

Relative Humidity (%)

62
62
61
61
60
60
61
65
68
72
71
67
66
65
66
67
57
52
45
43
40
39
39
39

Pressure (mb)

1028
1028
1028
1028
1028
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1028
1028
1028
1027

Ozone (du)

316
316
317
317
319
320
321
323
324
326
325
323
322
322
321
321
322
323
324
325
325
326
327
328

Wednesday 27

Waxing Gibbous 89%

17:59

03:47

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

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)

25
16
7
11
16
20
19
18
16
28
40
52
50
46
42
38
29
23
26
30
30

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
3
5
9
6
3
0
0
0
0

Medium Clouds (% Sky Obscured)

8
4
0
1
4
6
9
9
10
8
6
4
10
10
9
7
4
2
2
2
2

High Clouds (% Sky Obscured)

6
15
7
11
12
10
8
7
5
9
11
10
9
8
7
7
11
16
26
30
30

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 (%)

85
85
85
85
85
85
85
85
85
85
85
85
85
85
85
85
85
85
85
85
85

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 (%)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

25
24
23
23
22
20
18
17
16
16
14
13
12
12
13
13
15
16
18
19
20

Feels Like (°C)

22
22
22
23
19
19
19
17
17
17
13
12
12
11
10
10
13
13
12
13
14

Dew Point (°C)

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

Relative Humidity (%)

38
41
45
48
52
58
63
67
72
75
79
80
83
77
74
69
61
55
49
46
44

Pressure (mb)

1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1025
1025

Ozone (du)

329
329
329
329
329
330
330
330
330
330
331
332
333
334
335
336
338
339
340
341
341

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

Generated: 21/05/26 17:53:20. Forecast: 21/05/26 to 27/05/26. Timezone: UTC+2.00