Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 17

Waxing Crescent 36%

13:44

22:17

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
18 Bad

Sun - Rise: 06:33, Set: 20:57, Transit: 13:44. Moon - Rise: 13:44, Set: 22:17. Civil Dark: 21:33 - 05:57. Nautical Dark: 22:19 - 05:11. Astro Dark: 23:13 - 04:18

Total Clouds (% Sky Obscured)

76
72
82
91
100
100
99
99
81
98
100
100
100
100
100
100
99
100
100
100
100
100
98
100

Low Clouds (% Sky Obscured)

22
44
66
9
25
51
68
69
65
13
54
83
83
85
92
88
99
99
100
79
80
67
73
52

Medium Clouds (% Sky Obscured)

70
72
82
84
100
100
97
95
33
55
84
85
98
80
100
70
65
70
63
96
91
84
85
90

High Clouds (% Sky Obscured)

4
5
3
6
0
30
88
4
20
97
100
100
96
100
100
100
50
99
100
100
100
100
92
99

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
5
4
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
Light Rain
Very Light Rain
None
Very Light Rain
Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

0
3
0
0
0
2
4
4
4
4
18
44
73
62
64
65
68
30
19
16
5
13
16
15

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.4
0.3
0
0.3
0.4
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

7
4
1
3
3
2
2
1
3
6
8
11
12
12
13
14
13
14
14
14
12
13
13
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

10
11
12
12
13
12
12
12
12
13
13
12
12
14
15
15
15
16
16
17
18
19
19
20

Relative Humidity (%)

50
55
63
64
72
70
70
69
69
72
74
71
68
77
81
82
82
84
77
81
86
87
83
85

Pressure (mb)

1015
1015
1015
1016
1016
1016
1015
1015
1014
1013
1013
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1011
1011
1010

Ozone (du)

308
306
305
306
307
306
304
303
303
304
306
304
306
307
307
309
310
310
309
307
305
304
304
303

Tuesday 18

Waxing Crescent 46%

14:59

22:34

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
18 Bad

Sun - Rise: 06:35, Set: 20:55, Transit: 13:44. Moon - Rise: 14:59, Set: 22:34. Civil Dark: 21:31 - 05:59. Nautical Dark: 22:17 - 05:13. Astro Dark: 23:10 - 04:21

Total Clouds (% Sky Obscured)

100
100
100
99
98
96
92
93
98
100
98
98
99
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

29
23
29
39
33
33
33
31
41
30
33
32
82
80
80
84
86
90
51
84
69
81
87
87

Medium Clouds (% Sky Obscured)

90
84
79
95
92
80
81
87
94
99
96
96
97
100
100
100
100
100
100
95
54
45
32
61

High Clouds (% Sky Obscured)

100
100
100
90
79
72
1
0
0
0
0
0
11
80
52
50
100
100
98
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
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
Very Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
None
None
None

Precipitation Probability (%)

23
27
24
27
22
11
0
0
1
2
3
8
24
46
62
75
76
90
95
84
78
47
29
20

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

23
22
20
20
19
19
18
18
17
17
17
17
17
17
17
17
17
17
18
19
19
19
19
19

Feels Like (°C)

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

Dew Point (°C)

20
20
19
19
18
18
17
17
17
16
16
15
15
15
15
15
14
14
14
10
10
9
9
11

Relative Humidity (%)

84
88
93
93
92
92
92
93
95
93
92
92
92
90
92
87
85
85
79
56
55
50
53
59

Pressure (mb)

1010
1010
1010
1011
1011
1011
1011
1010
1010
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1008
1008
1008
1007
1007

Ozone (du)

303
302
301
301
302
301
300
298
298
298
299
298
298
298
299
297
299
300
301
300
303
306
307
306

Wednesday 19

Waxing Crescent 46%

16:10

22:56

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

Sun - Rise: 06:36, Set: 20:53, Transit: 13:43. Moon - Rise: 16:10, Set: 22:56. Civil Dark: 21:29 - 06:00. Nautical Dark: 22:14 - 05:15. Astro Dark: 23:07 - 04:23

Total Clouds (% Sky Obscured)

100
100
100
55
44
48
51
42
49
62
91
85
92
78
55
56
45
76
62
74
89
93
87
75

Low Clouds (% Sky Obscured)

74
89
33
45
35
35
41
40
34
50
91
85
92
74
52
54
43
48
39
54
73
82
74
52

Medium Clouds (% Sky Obscured)

34
34
23
13
8
8
18
0
20
12
50
36
0
8
0
0
3
44
43
46
40
42
35
25

High Clouds (% Sky Obscured)

100
100
100
0
0
1
0
0
0
0
0
0
0
0
0
0
0
2
1
1
1
2
1
14

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
6
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
6
0
0
1
4
3
0
0
1
17
8
18
13
33
29
19
17
4
1
1
2
5
6

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
5
5
5
6
7
8
8
9
9
10
11
12
12
13
13
13
13
13
10
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

10
9
10
12
12
12
12
13
13
14
14
13
14
14
13
13
13
12
10
7
6
9
10
10

Relative Humidity (%)

59
56
60
73
78
79
82
85
90
93
93
89
90
89
82
74
71
60
49
36
33
42
49
46

Pressure (mb)

1007
1007
1007
1007
1007
1008
1008
1008
1008
1007
1007
1007
1007
1008
1008
1008
1008
1008
1008
1008
1007
1008
1008
1007

Ozone (du)

311
314
315
317
318
317
318
317
317
317
318
319
320
321
321
322
322
322
323
324
325
325
325
325

Thursday 20

First Quarter 56%

17:15

23:25

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

Sun - Rise: 06:38, Set: 20:51, Transit: 13:43. Moon - Rise: 17:15, Set: 23:25. Civil Dark: 21:27 - 06:02. Nautical Dark: 22:12 - 05:17. Astro Dark: 23:04 - 04:26

Total Clouds (% Sky Obscured)

69
51
40
35
25
15
7
39
42
59
72
74
74
64
68
77
77
76
82
98
100
100
100
100

Low Clouds (% Sky Obscured)

48
33
30
28
19
12
4
3
1
1
7
14
21
26
33
40
30
25
26
47
55
56
49
55

Medium Clouds (% Sky Obscured)

22
19
16
14
9
5
0
0
0
0
36
23
53
15
7
1
5
11
19
25
30
36
58
97

High Clouds (% Sky Obscured)

3
10
7
8
6
4
4
39
31
40
69
65
50
28
50
67
67
66
63
59
59
65
70
70

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 (%)

4
8
10
0
1
1
0
0
0
0
0
0
0
0
0
0
3
3
3
10
15
13
23
30

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

9
10
11
11
11
11
11
11
11
11
11
11
12
11
11
11
10
9
8
7
6
9
11
10

Relative Humidity (%)

44
47
57
62
66
71
77
79
83
86
89
90
92
84
72
63
53
46
41
37
34
45
54
52

Pressure (mb)

1007
1008
1008
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1010
1010
1010
1010
1010
1009
1009
1009
1009
1009
1009

Ozone (du)

326
328
329
330
330
328
327
326
329
330
329
329
330
332
334
335
336
337
337
339
343
346
346
345

Friday 21

Waxing Gibbous 66%

18:10

00:05

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
18 Bad

Sun - Rise: 06:39, Set: 20:49, Transit: 13:43. Moon - Rise: 18:10, Set: 00:05. Civil Dark: 21:24 - 06:04. Nautical Dark: 22:09 - 05:19. Astro Dark: 23:00 - 04:29

Total Clouds (% Sky Obscured)

99
100
98
73
89
78
82
79
79
77
81
82
92
94
96
97
90
87
82
80
78
76
80
81

Low Clouds (% Sky Obscured)

40
60
43
18
28
40
55
56
59
59
64
64
55
50
57
74
57
37
18
13
7
2
9
17

Medium Clouds (% Sky Obscured)

97
96
88
32
66
44
47
33
22
10
10
10
11
16
20
26
23
24
32
48
63
71
70
68

High Clouds (% Sky Obscured)

75
76
75
70
70
60
50
33
18
4
4
6
37
54
76
95
87
80
69
66
67
64
63
63

ISS Passover

Visibility (miles)

9
8
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

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

Precipitation Probability (%)

56
81
40
15
68
95
95
89
64
48
42
33
13
9
12
13
13
12
7
7
6
3
5
7

Precipitation Amount (mm)

0.2
0.5
0
0
0.4
0.9
1.1
0.5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

16
16
14
15
16
14
14
14
13
13
13
13
13
13
14
14
15
15
15
15
22
21
20
20

Dew Point (°C)

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

Relative Humidity (%)

58
74
87
92
92
92
90
92
95
93
93
93
92
86
80
74
70
56
47
38
39
39
38
43

Pressure (mb)

1010
1010
1011
1011
1012
1012
1012
1013
1013
1013
1013
1013
1014
1014
1014
1015
1015
1015
1015
1015
1014
1014
1014
1014

Ozone (du)

345
343
344
348
348
347
347
344
337
333
331
331
330
331
331
332
333
332
331
330
329
328
327
327

Saturday 22

Waxing Gibbous 75%

18:53

00:56

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
18 Bad

Sun - Rise: 06:41, Set: 20:47, Transit: 13:43. Moon - Rise: 18:53, Set: 00:56. Civil Dark: 21:22 - 06:05. Nautical Dark: 22:07 - 05:21. Astro Dark: 22:57 - 04:31

Total Clouds (% Sky Obscured)

79
77
71
65
68
75
79
84
91
100
98
97
96
98
99
100
100
100
100
100
100
100
97
94

Low Clouds (% Sky Obscured)

24
17
9
0
1
1
2
5
6
8
8
8
8
13
19
30
40
46
51
57
48
44
43
29

Medium Clouds (% Sky Obscured)

56
46
41
26
41
50
67
55
45
36
29
18
7
6
5
9
14
18
28
52
65
71
73
76

High Clouds (% Sky Obscured)

62
44
26
7
24
39
50
70
81
92
93
94
96
75
58
35
62
82
100
94
89
84
74
67

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

Precipitation Probability (%)

5
13
19
24
30
39
52
58
65
77
89
95
95
78
57
69
65
59
51
57
65
72
62
50

Precipitation Amount (mm)

0
0
0
0
0
0
0.2
0.3
0.3
0.4
0.7
0.9
1
0.6
0.3
0.4
0.3
0.3
0
0.3
0.4
0.5
0.4
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

20
21
17
17
17
17
16
16
12
11
12
11
11
10
11
10
10
10
10
11
17
17
16
16

Dew Point (°C)

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

Relative Humidity (%)

50
57
61
65
70
73
76
80
82
83
84
81
79
75
67
58
52
46
41
37
35
34
33
33

Pressure (mb)

1015
1015
1015
1015
1016
1016
1016
1016
1016
1015
1015
1015
1015
1015
1015
1015
1015
1014
1014
1014
1014
1014
1014
1014

Ozone (du)

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

Sunday 23

Waxing Gibbous 83%

18:53

01:59

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: 06:42, Set: 20:45, Transit: 13:42. Moon - Rise: 18:53, Set: 01:59. Civil Dark: 21:20 - 06:07. Nautical Dark: 22:04 - 05:23. Astro Dark: 22:54 - 04:34

Total Clouds (% Sky Obscured)

92
91
90
90
88
86
85
91
96
100
100
100
100
100
100
100
100
99
99

Low Clouds (% Sky Obscured)

34
38
37
40
41
32
32
45
63
81
62
37
16
44
72
100
98
95
92

Medium Clouds (% Sky Obscured)

78
74
69
65
66
67
68
72
76
81
71
61
50
66
81
97
91
85
79

High Clouds (% Sky Obscured)

59
50
41
26
26
23
21
25
24
30
30
40
50
59
59
48
44
43
43

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

35
28
20
3
5
6
1
3
3
1
2
2
0
7
15
22
23
22
24

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

17
17
13
13
13
12
12
12
9
10
10
10
11
11
10
10
9
9
9

Dew Point (°C)

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

Relative Humidity (%)

34
35
41
47
55
59
63
68
68
70
70
71
72
72
71
71
69
65
59

Pressure (mb)

1014
1014
1014
1015
1015
1015
1015
1015
1014
1014
1014
1014
1014
1014
1013
1013
1013
1013
1012

Ozone (du)

318
317
317
316
315
314
313
312
312
312
313
313
314
315
315
316
317
320
323

Forecast for Boutersem, Flemish Brabant, Kingdom of Belgium (50.84,4.83)

Generated: 17/08/26 19:00:14. Forecast: 17/08/26 to 23/08/26. Timezone: UTC+2.00