Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 5

Waning Crescent 28%

00:24

17:27

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

Sun - Rise: 07:04, Set: 20:19, Transit: 13:40. Moon - Rise: 00:24, Set: 17:27. Civil Dark: 20:52 - 06:31. Nautical Dark: 21:33 - 05:50. Astro Dark: 22:18 - 05:06

Total Clouds (% Sky Obscured)

54
49
50
91
78
69
25
57
34
37
36
64
29
14
67
55
59
67
85
57
67
56
100
66

Low Clouds (% Sky Obscured)

36
29
23
14
8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
4
7
23
16
16
23
31
31
67
23
11
7

High Clouds (% Sky Obscured)

2
18
50
83
68
68
23
56
33
35
35
59
29
6
29
41
47
40
35
24
4
27
100
53

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
8
8
6
5
4
3
3
4
4
4
4
4
4
4
4
4
5
6
5
5
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

18
19
18
17
15
15
14
15
13
13
11
11
11
11
12
10
11
12
15
16
19
19
21
21

Dew Point (°C)

6
6
6
7
8
9
9
9
8
9
8
8
8
8
8
8
8
8
8
7
6
5
5
4

Relative Humidity (%)

37
38
40
45
54
62
66
68
69
74
75
77
79
79
80
79
75
64
55
46
41
35
31
28

Pressure (mb)

1024
1024
1024
1025
1025
1026
1026
1026
1027
1027
1027
1027
1026
1026
1026
1026
1026
1026
1026
1025
1025
1024
1023
1023

Ozone (du)

298
299
298
297
296
296
295
293
291
288
286
285
285
287
287
288
288
286
285
285
286
287
288
287

Sunday 6

Waning Crescent 18%

01:45

18:15

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
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 07:06, Set: 20:16, Transit: 13:40. Moon - Rise: 01:45, Set: 18:15. Civil Dark: 20:50 - 06:32. Nautical Dark: 21:31 - 05:52. Astro Dark: 22:15 - 05:08

Total Clouds (% Sky Obscured)

60
95
78
100
100
100
95
77
63
72
71
83
78
54
87
100
100
100
100
94
84
87
64
45

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
36
25
30
30
19

Medium Clouds (% Sky Obscured)

11
18
16
98
100
11
9
16
26
72
64
83
60
43
62
29
31
90
42
57
72
77
39
11

High Clouds (% Sky Obscured)

44
82
26
100
98
100
95
23
15
15
17
17
50
10
78
100
100
100
100
60
35
11
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
5
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
Very Light Rain
Very Light Rain
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
1
1
0
11
8
6
2
6
5
2
7
38
46
31
13
0
2

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.3
0
0
0
0

Wind Speed/Direction (mph)

5
6
5
4
4
5
5
5
5
5
5
5
4
5
5
6
6
6
8
9
11
11
12
11

Chance of Frost

Temperature (°C)

24
24
24
23
21
20
20
19
19
19
19
19
19
18
19
19
19
20
21
21
23
23
24
24

Feels Like (°C)

22
23
21
22
19
18
17
17
16
17
16
16
16
16
16
16
16
18
18
19
21
21
21
23

Dew Point (°C)

4
4
4
6
6
5
5
5
5
5
5
4
5
4
5
5
6
7
6
8
10
10
8
8

Relative Humidity (%)

27
26
27
33
36
37
38
39
39
39
38
38
38
38
40
41
43
43
38
43
45
42
35
35

Pressure (mb)

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

Ozone (du)

287
287
286
286
286
285
287
289
290
291
291
292
291
289
290
293
295
295
296
296
297
299
302
301

Monday 7

Waning Crescent 10%

03:13

18:49

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
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 07:07, Set: 20:14, Transit: 13:40. Moon - Rise: 03:13, Set: 18:49. Civil Dark: 20:48 - 06:34. Nautical Dark: 21:28 - 05:53. Astro Dark: 22:12 - 05:10

Total Clouds (% Sky Obscured)

60
65
98
100
95
98
86
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

20
22
26
16
2
0
7
32
27
10
15
33
39
39
43
25
26
14
66
72
64
65
66
67

Medium Clouds (% Sky Obscured)

0
15
34
18
7
15
28
28
18
55
57
34
32
27
88
88
89
91
93
100
96
100
100
100

High Clouds (% Sky Obscured)

60
65
87
99
88
98
45
100
99
99
100
100
100
100
100
80
100
100
100
100
100
100
100
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
Very Light Rain

Precipitation Probability (%)

1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
13
9
8
14
17
25
41
62

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
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

25
25
24
23
21
19
18
17
16
15
15
15
15
14
14
14
15
15
16
16
17
17
17
17

Feels Like (°C)

24
24
23
20
19
18
16
16
16
14
14
13
13
13
12
13
13
13
14
15
15
16
16
15

Dew Point (°C)

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

Relative Humidity (%)

40
42
45
51
62
63
67
71
73
77
82
84
89
90
89
83
82
78
73
73
73
71
70
75

Pressure (mb)

1018
1017
1017
1018
1018
1018
1018
1018
1018
1018
1018
1017
1017
1017
1017
1017
1016
1016
1016
1016
1015
1015
1015
1014

Ozone (du)

299
298
297
297
297
296
296
296
297
295
294
294
293
291
289
290
290
291
290
290
290
290
290
291

Tuesday 8

Waning Crescent 4%

04:41

19:12

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
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 07:09, Set: 20:12, Transit: 13:39. Moon - Rise: 04:41, Set: 19:12. Civil Dark: 20:45 - 06:36. Nautical Dark: 21:26 - 05:55. Astro Dark: 22:09 - 05:12

Total Clouds (% Sky Obscured)

100
99
98
97
98
99
100
97
92
90
88
86
84
83
83
85
80
77
75
79
83
84
88
88

Low Clouds (% Sky Obscured)

75
78
76
74
72
73
75
78
81
84
85
86
84
83
64
30
24
17
12
13
12
23
62
81

Medium Clouds (% Sky Obscured)

100
99
98
97
98
99
100
96
91
84
82
56
9
12
5
3
4
4
7
6
5
4
8
13

High Clouds (% Sky Obscured)

100
73
43
15
20
25
45
45
32
50
50
45
36
40
35
35
35
35
35
35
40
40
60
60

ISS Passover

Visibility (miles)

9
7
4
7
9
4
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

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

Precipitation Probability (%)

71
75
69
42
53
56
45
45
41
21
10
2
0
0
0
8
3
5
7
15
15
12
9
6

Precipitation Amount (mm)

0.4
0.4
0.4
0
0.2
0.2
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
8
9
8
7
7
7
6
6
6
6
6
6
7
8
10
10
10
10
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
87
92
92
92
92
95
95
95
96
95
96
96
96
96
95
93
83
74
65
55
50
46
45

Pressure (mb)

1014
1014
1013
1013
1013
1013
1013
1012
1012
1012
1012
1012
1012
1012
1012
1012
1013
1013
1013
1014
1014
1013
1013
1013

Ozone (du)

292
293
292
292
293
294
294
294
294
294
295
296
297
299
304
309
310
313
317
319
320
321
323
324

Wednesday 9

Waning Crescent 1%

06:07

19:30

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

Sun - Rise: 07:10, Set: 20:10, Transit: 13:39. Moon - Rise: 06:07, Set: 19:30. Civil Dark: 20:43 - 06:37. Nautical Dark: 21:23 - 05:57. Astro Dark: 22:07 - 05:14

Total Clouds (% Sky Obscured)

88
88
84
82
40
27
24
36
45
58
57
55
54
48
38
35
42
50
59
66
73
81
84
87

Low Clouds (% Sky Obscured)

81
79
73
67
20
4
0
7
13
22
21
19
19
21
22
21
10
15
18
12
7
7
8
9

Medium Clouds (% Sky Obscured)

17
16
16
13
9
7
6
9
12
12
15
24
28
22
16
7
4
2
2
2
6
12
12
11

High Clouds (% Sky Obscured)

0
33
0
0
1
4
6
26
41
58
42
20
0
2
3
6
5
5
5
5
5
11
14
21

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
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

44
44
47
50
55
63
68
70
72
75
77
77
79
79
80
79
79
69
60
54
48
42
38
38

Pressure (mb)

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

Ozone (du)

326
327
329
330
330
331
331
332
334
332
330
329
329
324
322
322
321
320
319
318
318
319
319
318

Thursday 10

Waning Crescent 0%

07:29

19:45

16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 OK
22 OK
23 OK
00 OK
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

Sun - Rise: 07:12, Set: 20:07, Transit: 13:39. Moon - Rise: 07:29, Set: 19:45. Civil Dark: 20:41 - 06:39. Nautical Dark: 21:21 - 05:59. Astro Dark: 22:04 - 05:16

Total Clouds (% Sky Obscured)

92
86
77
67
52
37
24
34
42
51
70
82
91
94
97
100
100
100
100
96
92
86
82
80

Low Clouds (% Sky Obscured)

8
7
8
11
13
14
17
16
15
14
15
19
24
14
8
0
11
17
16
11
12
18
30
39

Medium Clouds (% Sky Obscured)

7
7
3
3
0
0
3
12
18
20
26
34
38
33
33
29
24
25
25
30
31
26
45
59

High Clouds (% Sky Obscured)

30
30
40
36
26
16
5
17
29
41
43
63
81
88
95
100
100
100
100
71
47
32
28
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
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
24
37
56
70
83
93
77
65

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.3
0.5
0.7
0.4
0.3

Wind Speed/Direction (mph)

7
7
6
5
4
4
4
4
3
3
4
4
5
5
5
5
5
6
6
7
7
8
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

37
36
40
43
48
51
56
61
62
63
63
63
64
64
63
62
63
55
50
45
41
38
36
34

Pressure (mb)

1017
1016
1017
1017
1017
1017
1017
1018
1017
1017
1017
1017
1017
1016
1016
1016
1016
1015
1015
1015
1014
1014
1013
1013

Ozone (du)

318
317
316
316
315
315
315
314
312
310
307
307
307
306
308
310
311
312
313
313
315
316
317
322

Friday 11

New Moon 2%

08:48

19:58

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
12 Bad
13 Bad

Sun - Rise: 07:14, Set: 20:05, Transit: 13:38. Moon - Rise: 08:48, Set: 19:58. Civil Dark: 20:38 - 06:40. Nautical Dark: 21:18 - 06:00. Astro Dark: 22:01 - 05:18

Total Clouds (% Sky Obscured)

80
82
85
89
93
95
100
100
100
100
100
100
100
100
100
100
100
100
100
99
99
98

Low Clouds (% Sky Obscured)

46
59
75
89
93
95
100
99
99
97
93
89
85
72
60
51
50
52
54
59
63
70

Medium Clouds (% Sky Obscured)

73
73
76
84
92
91
89
87
86
87
91
96
100
99
98
99
78
58
38
29
20
11

High Clouds (% Sky Obscured)

0
17
36
57
69
84
100
99
97
95
96
98
100
100
100
100
100
100
100
98
96
96

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

49
37
37
36
40
44
51
50
50
44
45
44
41
39
35
28
25
22
19
31
36
32

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

17
17
17
19
20
14
15
15
14
14
13
13
13
12
12
12
12
12
12
12
12
13

Dew Point (°C)

3
3
5
7
9
10
11
12
12
12
12
12
12
12
12
11
12
11
11
11
9
9

Relative Humidity (%)

34
33
40
49
59
66
73
82
83
84
86
86
87
87
89
89
90
83
78
73
65
60

Pressure (mb)

1013
1012
1013
1013
1013
1013
1014
1014
1014
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1014
1014
1013

Ozone (du)

327
333
333
332
332
333
333
334
333
333
333
333
334
335
335
335
335
335
336
336
335
335

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

Generated: 05/09/26 16:35:06. Forecast: 05/09/26 to 11/09/26. Timezone: UTC+2.00