Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 27

Waxing Gibbous 100%

20:22

06:56

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
16 Bad
17 Bad

Sun - Rise: 06:48, Set: 20:36, Transit: 13:41. Moon - Rise: 20:22, Set: 06:56. Civil Dark: 21:11 - 06:14. Nautical Dark: 21:54 - 05:31. Astro Dark: 22:42 - 04:44

Total Clouds (% Sky Obscured)

62
70
77
82
100
100
100
100
100
100
100
100
100
98
100
100
100
100
95
98
71
75
68
100

Low Clouds (% Sky Obscured)

8
11
51
36
40
35
36
24
74
34
53
43
49
54
51
42
43
35
37
69
39
28
22
75

Medium Clouds (% Sky Obscured)

62
70
77
61
35
72
24
22
33
99
100
55
100
67
53
71
75
72
86
96
35
5
2
36

High Clouds (% Sky Obscured)

62
70
77
82
100
100
100
100
100
100
100
100
100
93
100
100
100
92
70
60
60
62
62
72

ISS Passover

Visibility (miles)

9
9
8
3
7
9
9
9
9
9
9
9
9
9
9
9
9
9
4
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
Light Rain
Light Rain
Light Rain
Light Rain
None
Light Rain
None
Very Light Rain
None
None
None
None
None
None
None
Light Rain
Very Light Rain
None
Light Rain
Light Rain
Light Rain
Light Rain
None

Precipitation Probability (%)

12
43
67
95
95
73
95
52
56
4
15
8
8
12
33
37
87
77
71
79
88
84
95
57

Precipitation Amount (mm)

0
0.6
0.5
0.8
1.7
0
0.9
0
0.3
0
0
0
0
0
0
0
0.8
0.2
0
0.5
0.4
0.5
0.8
0

Wind Speed/Direction (mph)

9
6
3
6
5
5
5
6
7
6
6
7
6
7
9
11
11
13
15
16
15
15
15
14

Chance of Frost

Temperature (°C)

27
26
25
22
21
21
20
20
19
19
19
19
19
19
19
19
19
20
20
20
20
20
21
20

Feels Like (°C)

26
25
24
22
22
21
21
21
20
19
20
19
19
18
19
18
19
18
18
17
17
16
17
17

Dew Point (°C)

14
16
20
19
20
19
19
19
19
18
18
18
18
18
18
18
17
17
15
12
9
9
10
7

Relative Humidity (%)

44
54
74
81
89
92
92
92
95
93
93
93
93
93
93
92
86
82
72
58
49
49
50
44

Pressure (mb)

1008
1008
1009
1009
1009
1009
1009
1009
1009
1009
1008
1009
1008
1009
1008
1009
1009
1010
1010
1010
1010
1010
1010
1010

Ozone (du)

302
302
301
303
303
304
306
306
307
308
308
309
314
313
313
316
322
330
335
347
347
347
348
347

Friday 28

Full Moon 99%

20:35

08:12

18 Bad
19 Bad
20 Bad
21 Good
22 Good
23 Good
00 Good
01 Good
02 Good
03 OK
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

Sun - Rise: 06:50, Set: 20:34, Transit: 13:41. Moon - Rise: 20:35, Set: 08:12. Civil Dark: 21:08 - 06:15. Nautical Dark: 21:51 - 05:33. Astro Dark: 22:39 - 04:46

Total Clouds (% Sky Obscured)

93
65
66
3
7
2
3
4
2
37
93
84
87
57
84
73
100
100
100
100
100
100
88
89

Low Clouds (% Sky Obscured)

60
10
3
0
0
0
0
0
0
5
92
58
58
28
8
16
42
30
15
42
65
72
68
87

Medium Clouds (% Sky Obscured)

47
3
1
0
0
0
0
0
0
25
47
52
76
35
34
0
3
29
84
100
99
94
74
56

High Clouds (% Sky Obscured)

81
65
66
1
7
1
1
2
2
1
0
0
0
0
21
58
100
100
100
100
100
75
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 (%)

31
23
0
0
0
0
0
0
0
0
22
7
11
0
0
0
0
0
0
6
13
29
13
11

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

Chance of Frost

Temperature (°C)

20
19
19
17
16
16
15
15
15
15
15
16
16
16
17
17
19
20
21
21
21
21
21
21

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

51
55
66
76
79
85
89
86
85
84
83
75
81
79
79
72
65
58
54
52
58
62
65
67

Pressure (mb)

1010
1010
1011
1011
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1013
1013
1013
1012
1012
1012
1011
1011
1011

Ozone (du)

343
341
341
341
338
335
332
331
327
324
320
317
315
312
308
305
303
300
300
299
299
301
302
301

Saturday 29

Waning Gibbous 96%

20:47

09:29

18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
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
14 Bad
15 Bad
16 Bad
17 Bad

Sun - Rise: 06:51, Set: 20:32, Transit: 13:40. Moon - Rise: 20:47, Set: 09:29. Civil Dark: 21:06 - 06:17. Nautical Dark: 21:49 - 05:35. Astro Dark: 22:36 - 04:48

Total Clouds (% Sky Obscured)

89
86
100
61
35
28
26
30
34
36
77
100
99
87
100
93
100
99
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

76
70
78
60
27
19
20
22
26
31
51
51
54
59
57
80
81
63
63
70
63
58
45
32

Medium Clouds (% Sky Obscured)

16
20
32
0
25
10
0
0
0
0
0
0
0
0
0
1
18
33
29
27
34
41
44
49

High Clouds (% Sky Obscured)

0
6
0
0
0
0
0
0
2
2
63
100
97
65
100
70
100
89
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
None

Precipitation Probability (%)

21
10
16
46
59
26
8
3
1
0
0
0
0
1
2
1
2
6
9
4
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)

20
18
17
17
16
17
16
15
16
16
16
15
14
14
14
14
16
15
15
14
15
14
13
14

Chance of Frost

Temperature (°C)

20
20
20
19
19
19
19
18
18
18
17
17
17
16
17
17
19
19
20
21
22
22
22
22

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
72
71
69
77
85
86
85
83
79
82
83
85
87
87
81
73
68
60
56
54
54
52
44

Pressure (mb)

1010
1010
1010
1010
1010
1010
1010
1010
1011
1011
1011
1011
1011
1012
1013
1013
1013
1013
1013
1013
1013
1012
1012
1011

Ozone (du)

303
303
301
301
302
303
302
301
300
300
298
297
297
296
295
295
295
296
297
297
297
297
298
300

Sunday 30

Waning Gibbous 91%

21:00

10:48

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
16 Bad
17 Bad

Sun - Rise: 06:53, Set: 20:29, Transit: 13:40. Moon - Rise: 21:00, Set: 10:48. Civil Dark: 21:04 - 06:19. Nautical Dark: 21:46 - 05:37. Astro Dark: 22:33 - 04:51

Total Clouds (% Sky Obscured)

100
100
63
62
92
62
98
60
86
77
44
61
57
82
89
86
58
83
62
87
86
85
83
89

Low Clouds (% Sky Obscured)

31
5
4
7
33
5
52
0
39
54
42
48
57
67
73
75
32
75
45
86
83
79
72
77

Medium Clouds (% Sky Obscured)

100
40
29
23
21
23
24
30
23
12
1
12
18
20
15
18
17
18
14
13
14
17
18
20

High Clouds (% Sky Obscured)

100
100
53
25
0
22
37
55
40
22
9
20
2
20
38
0
0
0
0
0
3
5
6
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
5
4
24
35
45
39
31
13
10
10
8
26
18
36
51
43
37
34
28
17
16

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
10
8
8
9
8
8
11
13
14
15
14
15
16
18
19
20
23
22
23
22
21
20
20

Chance of Frost

Temperature (°C)

22
22
21
20
19
18
17
17
16
16
16
16
16
16
16
17
18
19
19
20
21
20
21
21

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

45
48
55
60
62
61
74
78
89
82
81
87
81
81
79
78
71
60
68
53
51
55
53
50

Pressure (mb)

1011
1011
1011
1011
1011
1011
1011
1011
1011
1010
1010
1010
1010
1010
1011
1011
1011
1011
1012
1012
1012
1013
1013
1014

Ozone (du)

300
304
309
308
312
316
318
318
318
319
322
325
325
326
327
330
333
333
330
326
325
322
319
317

Monday 31

Waning Gibbous 83%

21:14

12:10

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
16 Bad
17 Bad

Sun - Rise: 06:55, Set: 20:27, Transit: 13:40. Moon - Rise: 21:14, Set: 12:10. Civil Dark: 21:01 - 06:20. Nautical Dark: 21:44 - 05:39. Astro Dark: 22:30 - 04:53

Total Clouds (% Sky Obscured)

95
59
99
100
100
91
82
70
66
65
65
71
82
91
92
95
98
89
79
72
78
85
92
77

Low Clouds (% Sky Obscured)

78
33
69
17
13
15
15
15
9
4
0
2
2
4
7
14
21
20
21
23
20
17
12
12

Medium Clouds (% Sky Obscured)

25
25
28
22
21
10
12
5
5
6
8
19
20
24
30
43
63
72
79
72
78
85
89
72

High Clouds (% Sky Obscured)

27
29
65
100
100
78
57
35
30
26
31
31
30
30
9
14
22
18
14
10
10
15
15
16

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 (%)

12
5
5
3
0
0
0
0
0
0
0
0
0
0
0
1
0
8
10
10
4
3
1
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)

18
17
14
13
12
12
12
11
11
11
10
10
10
9
10
7
8
10
10
10
10
10
10
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

16
16
18
16
15
14
14
13
13
12
11
11
11
11
11
12
13
14
14
15
16
21
20
20

Dew Point (°C)

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

Relative Humidity (%)

53
54
57
60
69
73
75
78
82
89
93
95
95
95
90
82
76
69
61
54
48
45
42
39

Pressure (mb)

1014
1014
1015
1016
1016
1016
1017
1017
1017
1017
1017
1017
1018
1018
1018
1018
1018
1019
1019
1018
1018
1018
1018
1018

Ozone (du)

315
314
312
310
309
309
309
308
308
308
309
309
308
309
309
310
310
311
312
314
316
318
321
323

Tuesday 1

Waning Gibbous 74%

21:32

13:35

18 Bad
19 OK
20 OK
21 OK
22 OK
23 OK
00 OK
01 OK
02 OK
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

Sun - Rise: 06:56, Set: 20:25, Transit: 13:39. Moon - Rise: 21:32, Set: 13:35. Civil Dark: 20:59 - 06:22. Nautical Dark: 21:41 - 05:40. Astro Dark: 22:27 - 04:55

Total Clouds (% Sky Obscured)

61
47
45
43
40
33
26
21
36
49
58
69
83
100
99
99
98
98
98
98
94
91
88
76

Low Clouds (% Sky Obscured)

13
12
19
27
35
27
19
9
6
3
0
0
0
0
1
2
4
28
53
77
74
70
66
56

Medium Clouds (% Sky Obscured)

56
40
27
14
2
2
3
4
5
3
0
25
48
72
79
86
94
72
52
30
30
33
31
22

High Clouds (% Sky Obscured)

17
15
14
7
0
1
1
2
19
37
54
67
83
100
99
98
98
96
93
88
61
37
17
17

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
8
8
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
Very Light Rain
Very Light Rain

Precipitation Probability (%)

2
0
0
1
0
0
0
0
0
0
0
0
2
14
28
33
42
56
74
82
90
87
71
63

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.3
0.6
0.6
0.3
0.3

Wind Speed/Direction (mph)

8
6
5
3
2
3
4
5
6
6
6
7
7
8
9
11
12
15
15
15
16
15
15
14

Chance of Frost

Temperature (°C)

22
21
20
18
17
15
14
14
13
13
13
13
14
14
15
16
17
19
19
19
19
19
19
20

Feels Like (°C)

20
20
21
18
17
17
16
16
15
12
13
12
12
12
12
13
13
13
14
15
17
16
17
17

Dew Point (°C)

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

Relative Humidity (%)

43
46
52
55
58
62
67
71
76
80
86
90
90
89
86
78
70
63
68
72
78
71
66
60

Pressure (mb)

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

Ozone (du)

324
325
326
325
325
324
323
323
322
324
325
327
326
326
326
328
329
331
334
336
338
336
334
332

Wednesday 2

Waning Gibbous 63%

21:55

15:00

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: 06:58, Set: 20:23, Transit: 13:39. Moon - Rise: 21:55, Set: 15:00. Civil Dark: 20:57 - 06:24. Nautical Dark: 21:39 - 05:42. Astro Dark: 22:24 - 04:57

Total Clouds (% Sky Obscured)

63
49
53
61
70
71
72
75
78
83
84
83
84
83
83
85
85
84
84
83

Low Clouds (% Sky Obscured)

46
37
27
16
3
0
0
3
3
4
4
4
8
18
18
17
14
12
10
9

Medium Clouds (% Sky Obscured)

17
9
8
3
4
5
3
1
5
8
11
15
19
26
27
28
30
44
59
70

High Clouds (% Sky Obscured)

15
11
26
45
63
61
64
65
71
71
76
77
76
76
64
39
11
14
21
31

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

Precipitation Probability (%)

55
43
57
59
42
31
19
2
4
1
0
6
6
2
6
5
2
4
4
1

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

13
11
11
9
8
6
7
9
10
10
10
10
11
11
12
13
14
15
15
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

59
60
60
66
76
85
85
86
87
86
84
82
80
78
77
66
57
50
45
42

Pressure (mb)

1017
1018
1018
1018
1019
1019
1019
1019
1019
1019
1019
1019
1020
1020
1020
1020
1020
1020
1020
1020

Ozone (du)

328
324
321
319
317
315
312
309
307
305
304
303
303
302
301
300
299
298
297
296

Forecast for Elst, Flemish Brabant, Kingdom of Belgium (50.77,4.89)

Generated: 27/08/26 18:57:50. Forecast: 27/08/26 to 02/09/26. Timezone: UTC+2.00