Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 18

Waxing Crescent 5%

07:23

00:25

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

Sun - Rise: 05:45, Set: 21:27, Transit: 13:36. Moon - Rise: 07:23, Set: 00:25. Civil Dark: 22:08 - 05:03. Nautical Dark: 23:04 - 04:06. Astro Dark: 00:29 - 02:39

Total Clouds (% Sky Obscured)

83
79
85
85
76
62
95
40
11
12
22
42
42
76
55
66
99
77
100
94
91
99
100
99

Low Clouds (% Sky Obscured)

39
41
66
60
57
41
46
27
5
6
20
24
22
23
14
0
0
4
0
23
42
47
55
73

Medium Clouds (% Sky Obscured)

70
74
79
59
47
46
90
28
3
4
1
14
27
33
29
44
52
72
93
90
87
95
96
92

High Clouds (% Sky Obscured)

0
0
0
0
0
0
4
0
5
2
1
12
2
45
19
38
93
20
96
55
39
90
100
67

ISS Passover

Visibility (miles)

8
7
6
7
6
7
6
5
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
Very Light Rain
None
None
None
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

60
55
52
53
60
67
65
49
2
0
0
0
0
0
0
0
0
0
0
1
4
17
14
29

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

63
61
64
75
69
71
78
86
90
93
93
93
93
93
93
93
93
93
95
91
84
81
86
84

Pressure (mb)

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

Ozone (du)

423
424
424
418
410
395
385
382
383
377
373
370
370
369
367
367
366
364
363
363
364
364
369
376

Tuesday 19

Waxing Crescent 11%

08:44

01:20

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
12 Bad

Sun - Rise: 05:43, Set: 21:28, Transit: 13:36. Moon - Rise: 08:44, Set: 01:20. Civil Dark: 22:10 - 05:02. Nautical Dark: 23:06 - 04:04. Astro Dark: 00:34 - 02:34

Total Clouds (% Sky Obscured)

99
100
100
100
100
100
100
87
100
100
93
96
97
94
96
100
100
97
90
94
91
94
92
91

Low Clouds (% Sky Obscured)

52
72
71
86
100
92
67
70
54
52
50
56
59
56
53
77
81
73
62
57
67
53
58
61

Medium Clouds (% Sky Obscured)

69
100
100
76
88
93
100
72
99
100
92
95
97
83
96
92
100
56
37
40
57
83
52
52

High Clouds (% Sky Obscured)

7
75
81
82
8
100
10
10
5
0
0
12
0
0
10
86
89
81
11
25
1
1
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
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

38
46
42
29
38
31
11
2
3
41
77
41
32
8
5
8
3
16
28
13
31
50
40
37

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.6
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
76
84
83
80
78
77
83
81
84
86
90
90
92
93
92
93
95
95
92
84
74
70
69

Pressure (mb)

1016
1016
1016
1016
1015
1015
1016
1016
1016
1016
1016
1016
1016
1017
1017
1017
1018
1018
1019
1020
1020
1021
1021
1021

Ozone (du)

380
374
375
371
370
367
366
365
366
368
369
370
374
377
378
378
379
381
378
372
367
369
376
374

Wednesday 20

Waxing Crescent 21%

10:11

01:57

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
12 Bad

Sun - Rise: 05:42, Set: 21:30, Transit: 13:37. Moon - Rise: 10:11, Set: 01:57. Civil Dark: 22:11 - 05:00. Nautical Dark: 23:09 - 04:02. Astro Dark: 00:39 - 02:28

Total Clouds (% Sky Obscured)

96
91
93
99
89
91
87
74
75
89
77
85
84
89
73
50
63
71
90
92
94
96
97
99

Low Clouds (% Sky Obscured)

91
83
87
87
72
41
41
24
28
1
0
0
0
0
0
0
0
0
0
10
20
30
30
26

Medium Clouds (% Sky Obscured)

62
69
66
74
63
56
55
45
40
44
42
38
19
2
0
0
10
15
8
10
10
15
57
70

High Clouds (% Sky Obscured)

0
1
2
15
7
5
6
17
1
52
43
53
70
89
70
50
52
31
77
80
84
89
92
96

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

55
47
56
51
50
39
12
3
2
0
0
0
0
0
0
0
0
0
0
0
0
0
3
7

Precipitation Amount (mm)

0.2
0
0.2
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)

17
16
17
16
14
13
12
10
8
8
8
8
8
8
8
8
7
7
6
7
7
7
8
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

12
13
13
13
13
14
14
15
14
14
12
13
11
11
10
10
9
9
10
12
14
15
17
18

Dew Point (°C)

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

Relative Humidity (%)

68
78
68
71
72
74
74
77
85
93
93
93
95
95
95
95
93
95
93
89
82
75
71
66

Pressure (mb)

1022
1022
1022
1023
1023
1023
1024
1024
1025
1025
1026
1026
1026
1027
1027
1027
1027
1027
1028
1028
1028
1028
1028
1028

Ozone (du)

370
367
363
360
354
350
347
345
342
342
342
340
339
337
336
335
335
335
335
335
333
333
333
332

Thursday 21

Waxing Crescent 31%

11:37

02:22

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

Sun - Rise: 05:41, Set: 21:31, Transit: 13:37. Moon - Rise: 11:37, Set: 02:22. Civil Dark: 22:13 - 04:59. Nautical Dark: 23:11 - 04:00. Astro Dark: 00:45 - 02:22

Total Clouds (% Sky Obscured)

97
99
97
97
80
58
44
39
35
29
24
16
8
16
22
28
44
58
75
52
28
8
9
10

Low Clouds (% Sky Obscured)

23
16
14
4
9
19
24
25
28
29
23
16
8
5
3
0
0
0
0
0
0
0
2
5

Medium Clouds (% Sky Obscured)

13
13
11
9
10
7
7
4
2
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

88
97
84
95
73
29
24
12
6
0
1
0
0
11
22
28
44
58
75
52
28
6
4
2

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
19
18
21
25
17
8
2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

61
58
58
56
58
62
66
76
78
79
81
86
87
89
89
89
87
87
84
79
71
67
63
58

Pressure (mb)

1028
1028
1028
1027
1027
1027
1027
1027
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1027

Ozone (du)

331
330
329
329
328
328
328
328
328
329
330
332
334
333
332
333
336
338
339
340
339
337
336
336

Friday 22

Waxing Crescent 42%

12:59

02:40

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

Sun - Rise: 05:40, Set: 21:32, Transit: 13:37. Moon - Rise: 12:59, Set: 02:40. Civil Dark: 22:14 - 04:58. Nautical Dark: 23:13 - 03:59. Astro Dark: 00:51 - 02:16

Total Clouds (% Sky Obscured)

39
45
23
27
28
27
10
30
52
69
74
68
63
42
24
11
36
61
87
84
81
78
68
59

Low Clouds (% Sky Obscured)

6
14
20
27
20
13
6
4
2
0
0
0
0
0
0
0
0
0
0
0
0
0
4
6

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
8
8
7
3

High Clouds (% Sky Obscured)

8
7
7
10
7
4
1
30
52
69
74
68
63
42
24
5
36
61
87
82
64
47
48
49

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
6
6
5
4
5
6
5
5
6
6
6
6
6
6
6
6
6
6
6
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

55
51
49
48
48
50
61
67
76
76
77
76
77
77
78
78
78
78
77
77
71
66
62
58

Pressure (mb)

1027
1026
1026
1025
1025
1024
1024
1024
1024
1024
1024
1024
1023
1023
1023
1023
1022
1022
1022
1022
1022
1022
1022
1022

Ozone (du)

336
335
335
334
334
335
336
335
333
331
331
330
330
329
329
328
328
329
330
331
331
330
330
332

Saturday 23

First Quarter 53%

12:59

02:54

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
12 Bad

Sun - Rise: 05:39, Set: 21:34, Transit: 13:37. Moon - Rise: 12:59, Set: 02:54. Civil Dark: 22:16 - 04:56. Nautical Dark: 23:15 - 03:57. Astro Dark: 00:58 - 02:08

Total Clouds (% Sky Obscured)

50
66
73
79
85
90
92
84
77
69
75
73
67
77
82
80
83
85
89
78
66
50
50
51

Low Clouds (% Sky Obscured)

10
10
12
13
16
19
22
24
27
29
29
27
29
23
21
22
31
36
42
55
59
50
50
51

Medium Clouds (% Sky Obscured)

2
2
2
2
3
4
10
10
10
10
10
10
9
18
8
8
8
8
4
3
3
2
2
2

High Clouds (% Sky Obscured)

46
62
73
79
82
84
88
78
67
57
55
62
65
46
33
12
22
28
33
17
10
2
2
2

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

Precipitation Probability (%)

0
4
12
20
40
48
39
66
66
67
95
87
95
62
67
40
18
24
11
7
2
0
3
6

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.4
0.2
0.2
0.8
0.5
0.8
0.3
0.4
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

21
22
29
28
27
27
26
25
23
23
23
22
22
22
18
18
18
18
17
16
19
19
19
20

Dew Point (°C)

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

Relative Humidity (%)

55
53
52
50
49
53
58
65
67
70
72
76
82
87
87
87
87
85
82
82
76
71
65
61

Pressure (mb)

1022
1022
1022
1022
1022
1022
1022
1023
1023
1023
1023
1024
1024
1025
1025
1025
1025
1025
1025
1026
1026
1026
1026
1026

Ozone (du)

333
334
332
330
328
329
329
330
331
331
332
332
332
331
332
333
333
333
333
333
333
334
334
334

Sunday 24

Waxing Gibbous 64%

14:17

03:07

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

Sun - Rise: 05:38, Set: 21:35, Transit: 13:37. Moon - Rise: 14:17, Set: 03:07. Civil Dark: 22:17 - 04:55. Nautical Dark: 23:17 - 03:55. Astro Dark: 01:05 - 01:58

Total Clouds (% Sky Obscured)

46
49
56
63
55
43
34
32
30
26
26
27
27
31
36
40
42
44
46

Low Clouds (% Sky Obscured)

46
49
56
63
53
40
31
30
22
19
17
20
18
19
23
30
32
31
30

Medium Clouds (% Sky Obscured)

2
2
2
3
2
1
0
0
0
0
0
0
0
4
8
12
13
11
5

High Clouds (% Sky Obscured)

2
27
42
58
40
21
5
3
2
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

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 (%)

6
14
10
5
9
11
15
15
11
0
4
3
2
0
1
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

23
24
24
23
23
23
22
22
21
19
18
17
17
16
16
16
16
16
17

Feels Like (°C)

21
21
27
26
24
25
26
27
23
23
24
23
22
21
17
18
18
18
18

Dew Point (°C)

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

Relative Humidity (%)

56
52
50
50
48
55
63
72
75
78
83
86
89
92
93
93
93
93
92

Pressure (mb)

1026
1026
1026
1026
1026
1026
1026
1026
1026
1027
1027
1027
1027
1027
1027
1027
1027
1027
1028

Ozone (du)

334
334
334
334
333
333
332
331
330
329
329
327
325
323
322
322
321
321
320

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

Generated: 18/05/26 13:23:24. Forecast: 18/05/26 to 24/05/26. Timezone: UTC+2.00