Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 31

Waning Gibbous 94%

22:17

09:12

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

Sun - Rise: 06:09, Set: 21:29, Transit: 13:48. Moon - Rise: 22:17, Set: 09:12. Civil Dark: 22:09 - 05:30. Nautical Dark: 23:02 - 04:37. Astro Dark: 00:14 - 03:27

Total Clouds (% Sky Obscured)

93
94
72
62
75
96
100
100
97
98
84
19
63
65
94
96
100
100
100
26
7
28
4
2

Low Clouds (% Sky Obscured)

16
16
30
28
6
72
43
20
12
11
3
15
51
13
30
5
4
0
0
0
0
4
3
1

Medium Clouds (% Sky Obscured)

42
34
24
20
30
15
15
15
13
14
11
0
2
3
0
0
0
3
0
2
6
17
0
0

High Clouds (% Sky Obscured)

93
0
1
5
33
84
100
100
94
93
75
5
46
55
89
93
100
100
100
25
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 (%)

1
0
0
2
1
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
7
8
9
12
12
12
13
12
10
8
7
6
6
5
5
4
4
4
3
4
5
5
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

22
23
26
25
25
24
22
20
19
18
17
17
17
15
14
14
14
14
13
13
15
18
20
21

Dew Point (°C)

11
11
10
12
13
12
12
12
13
13
12
12
11
10
10
10
10
11
11
11
10
9
7
5

Relative Humidity (%)

44
41
36
39
40
41
44
48
54
60
63
66
66
63
69
70
73
76
80
79
68
57
44
34

Pressure (mb)

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

Ozone (du)

330
331
330
330
331
330
330
330
329
330
329
328
324
324
323
323
324
326
324
326
329
334
339
340

Saturday 1

Waning Gibbous 88%

22:29

10:27

12 Good
13 Good
14 OK
15 OK
16 OK
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 OK

Sun - Rise: 06:11, Set: 21:28, Transit: 13:48. Moon - Rise: 22:29, Set: 10:27. Civil Dark: 22:07 - 05:31. Nautical Dark: 23:00 - 04:39. Astro Dark: 00:10 - 03:30

Total Clouds (% Sky Obscured)

0
5
39
40
39
52
98
87
100
100
100
100
100
100
100
100
100
77
98
76
87
58
48
40

Low Clouds (% Sky Obscured)

0
3
4
8
0
1
4
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
12
18

Medium Clouds (% Sky Obscured)

0
0
0
0
2
8
1
6
13
9
0
0
0
0
0
0
1
13
12
51
51
39
28
13

High Clouds (% Sky Obscured)

0
0
26
24
30
40
97
80
100
100
100
100
100
100
100
100
100
77
96
72
83
37
4
5

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
5
5
4
3
2
2
2
7
10
8
8
7
7
6
6
6
6
5
5
6
7
7
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

22
24
25
23
25
25
25
24
21
18
16
16
16
16
15
14
14
13
13
13
15
17
20
22

Dew Point (°C)

4
3
3
2
2
2
1
1
5
10
10
9
8
8
9
9
9
9
9
8
8
7
6
6

Relative Humidity (%)

29
25
22
20
19
19
18
19
27
46
52
53
52
52
56
59
63
64
67
65
56
47
37
31

Pressure (mb)

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

Ozone (du)

339
337
338
338
335
333
333
332
330
329
328
328
327
329
328
329
332
334
333
330
326
324
323
323

Sunday 2

Waning Gibbous 80%

22:41

11:43

12 OK
13 OK
14 OK
15 Good
16 Good
17 Good
18 OK
19 Good
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 OK
10 OK
11 OK

Sun - Rise: 06:12, Set: 21:26, Transit: 13:48. Moon - Rise: 22:41, Set: 11:43. Civil Dark: 22:05 - 05:33. Nautical Dark: 22:57 - 04:41. Astro Dark: 00:06 - 03:34

Total Clouds (% Sky Obscured)

33
40
24
9
8
4
28
14
58
68
93
99
99
77
63
93
100
100
100
66
55
48
40
34

Low Clouds (% Sky Obscured)

17
15
11
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

5
19
3
3
0
0
11
5
3
8
8
7
24
19
24
27
22
21
13
21
24
23
23
16

High Clouds (% Sky Obscured)

2
0
2
2
7
3
12
4
50
62
90
98
98
65
46
86
100
100
100
48
32
17
5
7

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)

9
9
9
9
9
9
9
9
9
8
8
9
9
10
9
8
6
5
4
4
4
3
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

4
3
2
1
0
1
2
3
4
4
4
5
6
6
6
7
8
9
9
9
9
10
10
9

Relative Humidity (%)

25
20
18
16
15
15
16
19
21
24
26
31
35
36
38
42
47
52
55
55
51
45
38
32

Pressure (mb)

1017
1017
1016
1015
1015
1014
1014
1013
1013
1013
1013
1013
1013
1013
1012
1012
1012
1011
1011
1011
1011
1011
1011
1011

Ozone (du)

323
323
323
322
321
321
321
320
319
317
315
314
315
313
312
312
312
312
313
315
320
319
319
319

Monday 3

Waning Gibbous 71%

22:54

No Set

12 OK
13 Bad
14 Bad
15 Bad
16 Bad
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

Sun - Rise: 06:14, Set: 21:24, Transit: 13:48. Moon - Rise: 22:54, Set: No Set. Civil Dark: 22:03 - 05:35. Nautical Dark: 22:55 - 04:44. Astro Dark: 00:03 - 03:37

Total Clouds (% Sky Obscured)

32
57
69
85
100
99
98
100
100
100
100
93
85
69
89
93
78
76
78
83
87
56
43
55

Low Clouds (% Sky Obscured)

0
0
4
7
11
7
4
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
3
10

Medium Clouds (% Sky Obscured)

8
7
28
33
67
61
51
49
39
64
17
14
15
13
31
20
21
18
17
14
23
15
19
20

High Clouds (% Sky Obscured)

16
50
67
85
100
97
96
95
100
100
100
89
74
43
79
87
71
75
76
78
81
37
17
33

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
6
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
1
4
4
12
12
4
22
29
39
23
14
7
5
4
2
15
19
18
24
26
27
29

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
2
3
4
6
7
8
8
6
6
7
6
6
4
7
8
9
7
7
8
8
9
9

Chance of Frost

Temperature (°C)

29
31
33
34
34
34
34
32
32
28
26
24
23
23
22
22
22
22
21
21
22
24
26
28

Feels Like (°C)

30
32
32
32
33
32
31
30
29
27
25
23
23
22
23
20
20
21
21
21
20
21
25
27

Dew Point (°C)

9
8
6
6
6
6
7
8
9
13
15
17
16
15
15
13
12
12
12
13
12
12
11
9

Relative Humidity (%)

27
22
18
17
17
17
19
22
24
38
51
64
63
62
66
54
53
53
57
60
52
48
39
29

Pressure (mb)

1011
1011
1010
1010
1009
1009
1009
1009
1008
1009
1010
1010
1010
1010
1010
1010
1010
1010
1010
1011
1011
1012
1012
1012

Ozone (du)

317
318
317
316
316
317
314
314
314
312
314
317
318
319
318
317
317
315
311
308
308
308
309
308

Tuesday 4

Waning Gibbous 60%

23:09

13:02

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

Sun - Rise: 06:15, Set: 21:23, Transit: 13:48. Moon - Rise: 23:09, Set: 13:02. Civil Dark: 22:02 - 05:37. Nautical Dark: 22:53 - 04:46. Astro Dark: 23:59 - 03:41

Total Clouds (% Sky Obscured)

66
78
79
76
78
76
68
75
53
44
35
40
39
38
30
25
18
24
35
43
46
47
50
53

Low Clouds (% Sky Obscured)

16
21
22
23
24
28
30
31
22
16
10
7
4
0
0
0
0
2
5
8
15
21
21
21

Medium Clouds (% Sky Obscured)

19
20
16
14
11
28
20
25
25
22
20
25
27
26
20
14
9
10
12
15
11
11
11
11

High Clouds (% Sky Obscured)

48
64
67
66
67
51
34
46
10
4
0
2
2
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 (%)

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
15
25
29
31
43
45
43
37
30
11
9
9
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)

9
10
10
10
10
11
10
9
8
8
5
4
3
2
2
3
3
4
4
5
5
6
7
7

Chance of Frost

Temperature (°C)

30
31
32
33
33
33
32
31
30
28
25
24
23
22
22
21
21
20
20
21
21
23
24
26

Feels Like (°C)

28
29
30
30
30
29
29
29
27
27
26
25
24
25
25
25
24
24
23
23
22
23
24
23

Dew Point (°C)

7
6
6
5
5
5
5
5
8
11
13
14
14
15
15
15
15
15
15
15
15
14
13
12

Relative Humidity (%)

23
20
18
17
17
17
17
19
24
35
45
52
58
62
65
68
69
71
71
69
67
56
47
40

Pressure (mb)

1012
1012
1012
1012
1012
1012
1012
1012
1012
1013
1014
1014
1014
1015
1015
1015
1015
1015
1015
1016
1016
1016
1016
1017

Ozone (du)

309
309
309
309
308
307
307
307
308
307
306
305
305
305
304
304
304
305
305
305
305
305
306
307

Wednesday 5

Waning Gibbous 49%

23:27

14:25

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

Sun - Rise: 06:17, Set: 21:21, Transit: 13:48. Moon - Rise: 23:27, Set: 14:25. Civil Dark: 22:00 - 05:38. Nautical Dark: 22:50 - 04:48. Astro Dark: 23:55 - 03:44

Total Clouds (% Sky Obscured)

58
61
57
53
50
46
41
36
35
28
24
20
15
13
16
20
21
26
30
36
39
27
31
45

Low Clouds (% Sky Obscured)

17
19
14
13
12
11
6
4
2
1
0
0
0
0
9
17
21
17
9
0
15
24
27
34

Medium Clouds (% Sky Obscured)

10
10
11
14
18
20
23
25
30
28
24
20
15
13
13
6
0
0
0
0
2
2
1
1

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
4
9
15
22
24
22
23
15

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
11
14
13
15

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
11
12
12
13
12
11
10
7
5
4
2
2
2
3
3
4
4
4
5
5
6
7

Chance of Frost

Temperature (°C)

27
29
30
31
31
31
30
30
29
27
24
22
22
21
20
20
19
19
19
19
20
21
23
25

Feels Like (°C)

24
25
26
32
31
30
30
30
31
26
26
26
25
24
23
21
21
22
21
21
21
20
21
21

Dew Point (°C)

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

Relative Humidity (%)

36
34
31
29
27
25
27
30
33
40
48
58
61
64
66
70
75
80
80
80
81
70
61
53

Pressure (mb)

1016
1016
1016
1016
1015
1015
1015
1015
1015
1016
1016
1017
1017
1017
1017
1016
1016
1016
1016
1016
1016
1016
1016
1016

Ozone (du)

307
307
308
307
307
306
306
306
306
307
308
309
310
310
310
311
311
311
314
317
320
321
322
323

Thursday 6

Third Quarter 37%

23:54

15:51

12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
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

Sun - Rise: 06:18, Set: 21:19, Transit: 13:48. Moon - Rise: 23:54, Set: 15:51. Civil Dark: 21:58 - 05:40. Nautical Dark: 22:48 - 04:50. Astro Dark: 23:52 - 03:47

Total Clouds (% Sky Obscured)

63
77
76
69
58
52
50
41
46
45
47
54
64
75
70
69
67
69
67
69

Low Clouds (% Sky Obscured)

44
59
53
49
39
28
19
9
6
3
1
1
1
0
6
11
17
18
22
22

Medium Clouds (% Sky Obscured)

2
3
2
1
0
0
0
0
0
1
0
1
1
2
5
8
10
18
25
32

High Clouds (% Sky Obscured)

18
17
35
50
58
52
42
18
31
45
47
54
64
74
61
56
55
62
65
68

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

13
9
13
22
43
49
43
21
27
26
6
3
2
0
0
0
0
46
80
95

Precipitation Amount (mm)

0
0
0
0
0
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0.9

Wind Speed/Direction (mph)

7
8
8
10
12
14
12
10
8
6
5
4
3
3
4
4
4
4
4
4

Chance of Frost

Temperature (°C)

25
25
25
26
26
26
25
24
23
22
22
21
21
21
21
21
21
21
21
21

Feels Like (°C)

22
23
24
24
24
23
24
25
26
19
21
21
21
21
20
19
20
21
20
19

Dew Point (°C)

14
12
12
10
9
8
9
10
11
12
14
15
15
15
15
16
16
17
16
15

Relative Humidity (%)

50
45
42
38
34
31
35
41
46
52
59
67
68
69
69
73
74
77
74
70

Pressure (mb)

1016
1016
1015
1015
1015
1015
1015
1015
1015
1016
1016
1017
1016
1016
1016
1016
1016
1016
1016
1016

Ozone (du)

327
331
335
333
332
331
331
331
331
331
332
332
330
329
327
325
324
322
323
324

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

Generated: 31/07/26 12:16:20. Forecast: 31/07/26 to 06/08/26. Timezone: UTC+2.00