Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 27

Waxing Gibbous 86%

16:26

04:59

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
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad

Sun - Rise: 06:18, Set: 20:55, Transit: 13:38. Moon - Rise: 16:26, Set: 04:59. Civil Dark: 21:32 - 05:41. Nautical Dark: 22:18 - 04:54. Astro Dark: 23:14 - 03:58

Total Clouds (% Sky Obscured)

80
82
82
85
100
97
73
83
58
62
69
54
75
98
100
100
100
100
77
99
100
99
79
87

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
0
0
0
0
0

Medium Clouds (% Sky Obscured)

80
61
50
20
8
27
25
31
30
43
69
54
75
90
100
100
100
99
77
82
90
85
79
87

High Clouds (% Sky Obscured)

78
65
72
85
100
93
71
63
33
27
0
1
1
90
100
100
100
100
33
96
99
85
39
36

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)

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

Chance of Frost

Temperature (°C)

12
14
16
17
17
18
18
18
17
16
13
11
10
9
9
8
9
8
8
7
7
7
8
9

Feels Like (°C)

9
11
13
14
15
15
15
15
15
14
10
8
8
6
5
5
6
5
5
4
3
4
4
5

Dew Point (°C)

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

Relative Humidity (%)

59
53
47
44
42
42
42
46
57
64
66
70
73
69
72
73
73
74
78
77
78
77
73
66

Pressure (mb)

1024
1024
1023
1022
1022
1021
1021
1020
1020
1020
1020
1021
1021
1021
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020

Ozone (du)

376
377
379
381
382
384
386
386
388
396
402
405
402
403
404
408
410
411
412
413
413
415
417
415

Tuesday 28

Waxing Gibbous 92%

17:40

05:11

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

Sun - Rise: 06:16, Set: 20:56, Transit: 13:37. Moon - Rise: 17:40, Set: 05:11. Civil Dark: 21:33 - 05:39. Nautical Dark: 22:21 - 04:52. Astro Dark: 23:17 - 03:54

Total Clouds (% Sky Obscured)

86
87
87
80
47
21
20
50
51
58
95
100
36
22
4
0
0
0
0
0
0
0
0
0

Low Clouds (% Sky Obscured)

0
0
0
0
0
11
16
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

67
87
87
80
35
9
9
31
37
36
34
41
9
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

35
33
32
31
24
9
4
18
21
19
95
100
22
21
4
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
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)

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

Chance of Frost

Temperature (°C)

11
13
14
16
17
18
19
18
17
16
14
13
13
11
11
10
9
8
7
7
6
7
9
11

Feels Like (°C)

6
8
9
11
12
12
16
15
15
14
11
9
10
9
8
6
5
4
3
3
2
4
5
6

Dew Point (°C)

4
4
5
5
6
5
7
7
8
9
7
6
7
7
5
4
2
1
-0
-1
-1
0
1
1

Relative Humidity (%)

60
57
52
50
46
42
47
49
55
62
59
62
66
72
69
66
64
62
58
57
59
62
57
51

Pressure (mb)

1020
1020
1020
1020
1019
1019
1019
1019
1019
1019
1020
1021
1021
1022
1022
1022
1022
1022
1023
1023
1023
1024
1024
1024

Ozone (du)

413
412
412
412
411
409
406
403
402
400
399
397
397
397
397
397
396
396
395
391
392
393
391
391

Wednesday 29

Waxing Gibbous 97%

18:53

05:23

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

Sun - Rise: 06:15, Set: 20:58, Transit: 13:37. Moon - Rise: 18:53, Set: 05:23. Civil Dark: 21:35 - 05:37. Nautical Dark: 22:23 - 04:49. Astro Dark: 23:20 - 03:51

Total Clouds (% Sky Obscured)

0
0
1
1
0
1
0
0
0
0
1
1
1
2
2
2
2
0
0
0
0
0
0
1

Low Clouds (% Sky Obscured)

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

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

0
0
1
0
0
1
0
0
0
0
1
1
1
2
2
2
2
0
0
0
0
0
0
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 (%)

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)

17
18
19
19
19
18
18
18
16
15
13
12
12
12
11
11
10
9
9
9
9
9
11
13

Chance of Frost

Temperature (°C)

13
15
16
17
18
19
19
18
18
17
14
13
12
11
10
9
8
7
6
6
6
7
9
11

Feels Like (°C)

8
9
11
12
13
14
15
14
14
13
11
8
8
7
6
6
5
5
4
4
3
5
6
7

Dew Point (°C)

2
2
2
3
4
5
7
7
7
7
4
2
2
2
2
1
1
1
0
-0
-1
0
-1
-2

Relative Humidity (%)

47
42
39
37
38
40
45
46
49
53
50
48
51
54
58
59
62
65
65
65
65
62
49
40

Pressure (mb)

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

Ozone (du)

392
390
388
389
389
387
387
385
385
383
382
381
382
381
382
382
382
382
381
380
380
380
379
379

Thursday 30

Waxing Gibbous 99%

20:07

05:38

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

Sun - Rise: 06:13, Set: 21:00, Transit: 13:37. Moon - Rise: 20:07, Set: 05:38. Civil Dark: 21:37 - 05:35. Nautical Dark: 22:25 - 04:47. Astro Dark: 23:23 - 03:48

Total Clouds (% Sky Obscured)

1
1
0
0
0
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Low Clouds (% Sky Obscured)

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

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

1
1
0
0
0
1
0
1
0
0
0
0
0
0
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
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)

14
15
15
16
16
16
14
14
13
11
11
10
9
8
7
7
7
6
6
6
6
5
8
10

Chance of Frost

Temperature (°C)

13
15
17
18
19
19
20
19
18
17
15
13
12
10
9
9
8
8
7
7
7
9
12
15

Feels Like (°C)

9
11
13
14
15
16
17
17
16
16
13
11
9
8
7
6
6
6
5
5
5
8
10
13

Dew Point (°C)

-1
-1
0
1
2
3
6
7
8
10
7
4
3
1
0
-1
-1
-1
-2
-1
0
2
3
4

Relative Humidity (%)

36
33
32
31
32
33
41
44
50
61
58
54
53
53
53
53
54
54
52
54
59
63
55
49

Pressure (mb)

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

Ozone (du)

377
377
376
376
376
377
376
376
375
374
374
375
376
376
375
375
375
375
375
375
375
376
377
378

Friday 1

Full Moon 100%

21:21

05:56

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

Sun - Rise: 06:11, Set: 21:01, Transit: 13:37. Moon - Rise: 21:21, Set: 05:56. Civil Dark: 21:39 - 05:33. Nautical Dark: 22:27 - 04:45. Astro Dark: 23:26 - 03:44

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
3
6
30
50
61
66
65
61
57
60
60
65
75
84
94

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
16
31
43
52
57
62
71
73
79

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
2
4
6
11
18
50
38
25
13
14
15
15
29
42
55

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
4
6
38
69
94

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
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
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
1
1
2
3
3
1
4
10
7
24
31
30
44
49
43

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

15
16
19
21
22
23
23
23
23
20
16
14
12
12
12
11
12
12
12
11
11
11
14
14

Dew Point (°C)

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

Relative Humidity (%)

46
44
42
42
41
42
42
44
57
65
66
65
63
66
75
86
87
89
90
90
92
90
89
86

Pressure (mb)

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

Ozone (du)

380
378
377
376
376
375
375
375
375
376
378
379
379
378
377
377
378
379
381
380
380
379
375
371

Saturday 2

Waning Gibbous 98%

22:34

06:19

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
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad

Sun - Rise: 06:09, Set: 21:03, Transit: 13:37. Moon - Rise: 22:34, Set: 06:19. Civil Dark: 21:40 - 05:31. Nautical Dark: 22:29 - 04:42. Astro Dark: 23:29 - 03:41

Total Clouds (% Sky Obscured)

96
98
100
93
87
84
87
93
100
100
100
100
96
92
86
92
95
97
98
99
100
98
96
95

Low Clouds (% Sky Obscured)

70
63
55
64
68
72
56
41
25
31
37
43
35
25
17
16
17
23
31
36
40
50
52
50

Medium Clouds (% Sky Obscured)

56
54
55
37
18
0
23
45
69
79
90
100
80
59
39
37
20
10
21
32
39
45
50
56

High Clouds (% Sky Obscured)

96
97
92
77
62
53
72
87
100
100
100
100
79
59
38
57
77
97
97
98
100
76
52
33

ISS Passover

Visibility (miles)

9
9
9
9
8
6
4
6
8
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

47
49
46
43
40
42
44
44
41
34
23
9
11
14
26
54
72
83
92
95
95
91
90
85

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.4
0.5
0.6
0.6
0.5
0.4
0.5
0.4

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

15
16
17
18
18
18
18
18
17
17
16
14
13
12
11
10
10
9
9
9
10
10
12
13

Feels Like (°C)

13
13
13
14
17
17
17
16
17
17
15
15
15
14
14
14
9
8
8
7
6
6
8
8

Dew Point (°C)

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

Relative Humidity (%)

83
79
76
70
72
73
76
77
78
81
82
86
89
89
88
90
91
91
91
90
88
87
80
74

Pressure (mb)

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

Ozone (du)

367
368
370
371
371
371
371
373
376
378
380
382
384
384
384
383
382
380
378
377
376
375
375
374

Sunday 3

Waning Gibbous 95%

23:44

06:51

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
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 06:07, Set: 21:04, Transit: 13:37. Moon - Rise: 23:44, Set: 06:51. Civil Dark: 21:42 - 05:29. Nautical Dark: 22:31 - 04:40. Astro Dark: 23:32 - 03:38

Total Clouds (% Sky Obscured)

93
91
90
89
86
83
83
84
84
75
67
61
59
58
56
54
53
51
65
78
92

Low Clouds (% Sky Obscured)

50
45
43
44
45
45
37
33
30
28
20
17
19
26
28
27
28
32
39
44
48

Medium Clouds (% Sky Obscured)

66
75
83
85
84
82
83
84
84
75
67
61
59
46
24
17
15
14
13
9
4

High Clouds (% Sky Obscured)

33
27
22
18
37
42
43
44
65
50
32
10
8
6
4
9
13
18
43
69
92

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

Fog (%)

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

Precipitation Probability (%)

70
48
7
12
15
9
17
18
11
8
4
1
1
1
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.4
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
8
8
9
9
8
8
8
7
7
6
6
6
5
4
3
3
3
3
3
4

Chance of Frost

Temperature (°C)

14
15
16
17
17
18
18
17
16
15
14
13
11
11
10
9
9
8
8
8
9

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

68
62
58
53
53
54
53
59
64
70
75
79
84
85
87
87
88
88
87
85
85

Pressure (mb)

1015
1015
1014
1014
1014
1014
1013
1013
1014
1014
1014
1015
1015
1015
1016
1016
1016
1016
1016
1016
1016

Ozone (du)

374
374
375
375
375
376
376
375
375
375
375
375
375
375
375
375
375
375
375
377
378

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

Generated: 27/04/26 11:49:54. Forecast: 27/04/26 to 03/05/26. Timezone: UTC+2.00