Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 20

Waning Crescent 25%

01:02

18:10

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

Sun - Rise: 05:51, Set: 21:42, Transit: 13:46. Moon - Rise: 01:02, Set: 18:10. Civil Dark: 22:24 - 05:09. Nautical Dark: 23:22 - 04:11. Astro Dark: 01:05 - 02:34

Total Clouds (% Sky Obscured)

60
31
44
89
89
98
89
87
89
87
76
55
83
87
89
89
100
91
100
71
56
69
20
1

Low Clouds (% Sky Obscured)

47
7
0
0
32
41
25
0
0
47
50
42
43
7
77
82
43
41
22
20
34
49
20
0

Medium Clouds (% Sky Obscured)

2
0
1
60
81
100
97
84
40
24
19
60
57
89
100
100
100
90
8
0
0
52
0
0

High Clouds (% Sky Obscured)

19
24
94
100
100
100
100
100
27
3
3
96
91
100
100
55
92
15
12
0
0
0
0
0

ISS Passover

Visibility (miles)

-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
9
5
9
9
9
9

Fog (%)

-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
100
100
100
100
0
0
2
18
25
9

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
2.6
4.8
0.2
0
0
0
0
0
0

Wind Speed/Direction (mph)

5
4
4
5
4
4
3
4
5
8
9
10
10
9
9
11
12
5
8
7
8
6
7
8

Chance of Frost

Temperature (°C)

20
19
20
19
19
19
19
18
19
21
22
24
25
25
24
21
18
19
19
20
20
19
18
18

Feels Like (°C)

21
21
22
20
20
20
20
19
20
21
22
23
24
24
23
20
17
20
20
19
20
21
19
18

Dew Point (°C)

17
17
17
17
16
16
16
16
16
17
17
16
14
14
15
16
17
17
17
16
16
17
17
16

Relative Humidity (%)

87
89
82
87
84
84
82
86
83
76
70
60
52
52
56
75
93
90
86
76
78
84
90
89

Pressure (mb)

1007
1006
1006
1006
1005
1005
1005
1005
1005
1004
1004
1004
1004
1003
1003
1004
1004
1004
1004
1004
1004
1004
1004
1005

Ozone (du)

320
318
318
318
318
319
324
328
332
336
336
334
333
331
333
335
336
338
341
346
348
351
350
350

Monday 21

Waning Crescent 15%

01:35

19:31

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

Sun - Rise: 05:52, Set: 21:40, Transit: 13:46. Moon - Rise: 01:35, Set: 19:31. Civil Dark: 22:22 - 05:11. Nautical Dark: 23:20 - 04:13. Astro Dark: 00:59 - 02:39

Total Clouds (% Sky Obscured)

4
9
0
0
15
14
31
39
65
72
91
99
85
82
100
100
100
100
100
100
100
95
100
98

Low Clouds (% Sky Obscured)

3
5
0
0
14
12
31
39
50
53
81
39
56
62
67
66
57
56
61
46
43
38
53
50

Medium Clouds (% Sky Obscured)

0
0
0
0
1
1
0
1
36
46
68
76
56
44
49
34
66
71
71
64
66
57
39
45

High Clouds (% Sky Obscured)

0
0
0
0
0
2
3
0
0
0
0
4
23
18
100
99
100
78
91
100
100
85
100
93

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
6
9
9
9
3
9
7
7
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
Light Rain
None
Light Rain
None
None
Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain

Precipitation Probability (%)

8
0
0
0
0
0
0
0
0
19
21
38
47
67
46
63
57
64
88
88
95
95
87
60

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0
0.4
0
0
0.7
0.3
0.7
1
0.5
0.3

Wind Speed/Direction (mph)

9
10
9
9
8
9
8
9
11
14
15
16
15
16
17
17
15
14
13
12
11
11
11
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

17
16
15
16
16
16
15
15
16
16
16
16
14
15
15
16
17
17
16
16
16
15
14
15

Dew Point (°C)

15
15
14
14
15
14
14
13
12
10
9
8
7
7
9
12
14
12
10
15
15
14
15
15

Relative Humidity (%)

89
89
87
86
89
89
86
82
73
59
53
47
45
42
48
58
67
60
54
77
80
83
92
93

Pressure (mb)

1005
1004
1004
1004
1004
1004
1003
1003
1004
1004
1004
1004
1003
1003
1003
1003
1003
1003
1003
1003
1003
1003
1004
1005

Ozone (du)

350
347
349
356
357
354
353
353
353
354
352
353
345
351
352
354
350
352
356
358
361
360
360
360

Tuesday 22

Waning Crescent 8%

02:23

20:38

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
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 05:54, Set: 21:39, Transit: 13:46. Moon - Rise: 02:23, Set: 20:38. Civil Dark: 22:21 - 05:12. Nautical Dark: 23:18 - 04:15. Astro Dark: 00:53 - 02:45

Total Clouds (% Sky Obscured)

100
99
100
72
64
76
67
86
78
62
98
50
80
99
95
92
97
100
95
85
76
100
49
51

Low Clouds (% Sky Obscured)

50
55
62
72
64
60
59
86
78
62
22
32
53
74
67
63
54
34
44
41
43
2
0
0

Medium Clouds (% Sky Obscured)

60
73
41
2
12
19
7
3
0
0
19
8
18
44
44
50
64
76
59
51
36
29
8
0

High Clouds (% Sky Obscured)

100
97
91
36
0
0
0
0
0
0
0
0
2
25
1
1
0
1
9
25
18
100
44
51

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

14
15
5
0
0
0
0
11
3
4
14
22
16
42
82
52
39
38
57
48
23
6
1
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.7
0
0
0
0.2
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

14
14
14
14
13
14
13
14
14
14
14
14
15
16
12
10
8
8
10
12
14
14
14
13

Relative Humidity (%)

92
92
92
93
92
95
93
92
89
83
78
73
72
69
60
54
45
45
53
60
70
75
77
78

Pressure (mb)

1005
1006
1006
1007
1007
1008
1008
1009
1009
1010
1010
1011
1011
1011
1012
1012
1012
1012
1012
1012
1012
1013
1013
1014

Ozone (du)

359
362
362
361
359
355
355
354
352
347
345
342
339
337
337
335
336
336
336
335
335
336
336
337

Wednesday 23

Waning Crescent 3%

03:29

21:25

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
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 05:55, Set: 21:38, Transit: 13:46. Moon - Rise: 03:29, Set: 21:25. Civil Dark: 22:19 - 05:14. Nautical Dark: 23:16 - 04:17. Astro Dark: 00:48 - 02:50

Total Clouds (% Sky Obscured)

100
90
99
69
74
97
71
61
92
90
93
91
92
97
95
100
100
100
98
99
90
94
89
93

Low Clouds (% Sky Obscured)

0
0
0
0
0
6
0
16
38
37
68
54
50
53
50
45
53
46
44
47
34
30
27
38

Medium Clouds (% Sky Obscured)

55
58
48
36
36
30
35
26
43
27
29
28
24
65
26
62
98
74
69
88
32
36
39
51

High Clouds (% Sky Obscured)

100
52
94
25
32
93
27
5
60
33
4
24
35
80
91
100
100
97
82
65
70
77
72
68

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
5
5
3
3
3
5
5
9
9
9
7
4
7

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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
3
5
35
68
95
95
95
95
90
88
88
83
81
70
73
60

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.3
0.7
0.8
0.9
0.8
0.5
0.5
0.5
0.4
0.5
0.4
0.5
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
83
83
87
89
90
89
86
75
66
60
58
55
59
61
62
60
65
63
72
78
85
90
92

Pressure (mb)

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

Ozone (du)

338
338
339
341
343
343
343
343
344
346
349
350
350
351
353
353
351
350
349
347
347
346
346
346

Thursday 24

New Moon 0%

04:49

21:58

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
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 05:56, Set: 21:37, Transit: 13:46. Moon - Rise: 04:49, Set: 21:58. Civil Dark: 22:18 - 05:15. Nautical Dark: 23:14 - 04:19. Astro Dark: 00:43 - 02:54

Total Clouds (% Sky Obscured)

92
90
97
98
96
93
92
91
85
80
80
81
79
79
93
96
96
76
66
75
78
43
79
83

Low Clouds (% Sky Obscured)

47
57
63
71
80
83
86
89
81
74
66
63
60
57
52
47
42
42
43
47
52
43
46
52

Medium Clouds (% Sky Obscured)

44
32
83
89
69
48
36
32
32
38
31
29
30
27
30
40
48
44
35
20
21
16
14
10

High Clouds (% Sky Obscured)

52
42
53
42
23
35
49
63
61
60
58
39
19
0
33
67
96
66
33
11
1
1
5
0

ISS Passover

Visibility (miles)

8
9
9
9
9
9
9
9
9
9
9
9
6
9
5
6
5
9
8
9
8
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
Very Light Rain
None
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None

Precipitation Probability (%)

36
26
31
33
26
35
36
34
33
32
33
53
45
54
59
67
70
58
46
43
18
3
0
4

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
93
95
93
93
95
95
93
87
81
72
61
57
51
49
52
59
66
69
63
64
69
78
87

Pressure (mb)

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

Ozone (du)

349
349
348
348
348
348
347
347
346
344
344
345
344
343
342
342
339
338
337
337
335
337
338
341

Friday 25

Waxing Crescent 1%

06:14

22:20

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
19 Bad
20 Bad
21 Bad
22 OK
23 OK

Sun - Rise: 05:58, Set: 21:35, Transit: 13:47. Moon - Rise: 06:14, Set: 22:20. Civil Dark: 22:16 - 05:17. Nautical Dark: 23:12 - 04:21. Astro Dark: 00:39 - 02:59

Total Clouds (% Sky Obscured)

84
78
60
61
75
83
80
78
93
93
93
93
91
89
87
85
83
87
89
92
71
50
30
24

Low Clouds (% Sky Obscured)

58
63
60
61
69
83
79
78
90
90
90
84
77
73
73
69
70
67
63
61
40
23
4
4

Medium Clouds (% Sky Obscured)

7
30
8
6
29
14
60
31
21
17
16
13
10
6
3
3
4
8
9
7
6
4
3
1

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
3
1
4
2
5
2
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 (%)

2
1
8
16
15
10
10
8
28
24
9
16
16
16
14
13
11
10
8
6
4
1
0
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

13
13
13
12
12
13
13
13
13
14
14
14
14
14
14
14
13
13
13
13
13
13
13
12

Relative Humidity (%)

93
93
96
95
96
93
90
89
86
83
79
75
71
67
63
60
56
54
54
55
56
63
73
82

Pressure (mb)

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

Ozone (du)

345
344
341
337
333
331
329
328
327
327
327
327
326
324
323
321
320
318
317
315
314
313
312
311

Saturday 26

Waxing Crescent 4%

07:38

22:36

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

Sun - Rise: 05:59, Set: 21:34, Transit: 13:46. Moon - Rise: 07:38, Set: 22:36. Civil Dark: 22:15 - 05:18. Nautical Dark: 23:10 - 04:23. Astro Dark: 00:34 - 03:03

Total Clouds (% Sky Obscured)

16
10
13
15
18
39
62
83
74
65
57
60
62
65
70
72
77
68
61
54
55
58
60
60

Low Clouds (% Sky Obscured)

2
1
1
0
0
6
16
28
30
41
47
52
56
63
69
72
77
68
61
54
36
18
0
4

Medium Clouds (% Sky Obscured)

0
0
1
2
2
5
4
5
9
14
18
20
20
19
12
6
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

1
1
3
4
3
10
20
27
16
8
1
1
0
0
0
0
0
0
0
0
17
33
50
60

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
1
1
8
20
19
17
11
0
1
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
4
4
5
6
6
7
8
8
8
9
9
10
10
10
10
11
11
12
12
10
7
5

Chance of Frost

Temperature (°C)

15
15
14
14
14
13
14
15
16
18
20
22
23
24
24
24
23
23
22
21
21
19
17
15

Feels Like (°C)

18
17
16
14
15
15
15
14
14
17
17
17
18
18
18
24
23
23
23
23
22
18
18
17

Dew Point (°C)

12
12
12
12
12
12
12
11
11
11
11
10
10
10
11
11
11
12
11
10
10
10
11
11

Relative Humidity (%)

83
86
89
89
89
90
83
75
69
61
54
47
45
43
41
43
46
49
48
49
49
57
66
78

Pressure (mb)

1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1021
1021
1021
1021
1022
1022
1023
1023

Ozone (du)

311
310
310
308
307
306
305
304
303
302
301
301
300
300
300
299
298
297
296
295
294
294
294
294

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

Generated: 20/07/25 18:12:40. Forecast: 20/07/25 to 26/07/25. Timezone: UTC+2.00