Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 24

Waning Crescent 17%

05:09

16:28

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: 06:26, Set: 20:50, Transit: 13:38. Moon - Rise: 05:09, Set: 16:28. Civil Dark: 21:27 - 05:49. Nautical Dark: 22:12 - 05:03. Astro Dark: 23:06 - 04:10

Total Clouds (% Sky Obscured)

92
90
100
94
98
100
94
100
100
91
93
97
93
100
100
100
99
91
91
85
90
88
94
97

Low Clouds (% Sky Obscured)

75
63
76
86
95
100
99
100
97
91
91
96
79
100
100
100
98
84
86
69
74
80
94
97

Medium Clouds (% Sky Obscured)

91
89
96
89
91
98
95
95
90
77
84
68
81
95
71
68
56
50
45
38
45
38
45
72

High Clouds (% Sky Obscured)

3
5
1
3
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

-
-
-
-
-
-
-
-
-
8
4
8
0
2
8
9
9
9
9
8
9
8
9
9

Fog (%)

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

Precipitation Type

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

Precipitation Probability (%)

0
0
0
0
0
100
100
100
100
11
7
7
59
60
56
47
45
56
50
42
33
27
15
21

Precipitation Amount (mm)

0
0
0
0
0
0.4
0.8
0.4
0.4
0
0
0
0.2
0.2
0
0
0
0.2
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
90
93
91
95
96
97
99
95
95
95
98
98
98
95
95
93
90
86
84
92
95
96
96

Pressure (mb)

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

Ozone (du)

375
376
375
375
373
372
372
370
373
363
364
363
361
359
357
356
356
360
365
367
367
367
368
367

Friday 25

Waning Crescent 9%

05:23

17:55

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 OK
21 Good
22 Good
23 Good

Sun - Rise: 06:24, Set: 20:52, Transit: 13:38. Moon - Rise: 05:23, Set: 17:55. Civil Dark: 21:28 - 05:47. Nautical Dark: 22:15 - 05:01. Astro Dark: 23:09 - 04:07

Total Clouds (% Sky Obscured)

100
96
97
100
100
92
93
93
93
93
76
85
89
86
92
83
100
94
89
73
40
5
10
11

Low Clouds (% Sky Obscured)

99
93
94
100
100
86
87
84
87
74
54
73
80
76
84
76
90
73
53
37
16
5
10
11

Medium Clouds (% Sky Obscured)

49
64
71
63
42
25
23
18
10
13
10
5
11
18
26
37
65
56
51
41
20
0
0
0

High Clouds (% Sky Obscured)

2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
0
0
1
2
1
2
7
7
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
29
38
30
22
15
16
6
10
9
6
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

100
98
98
98
98
98
98
98
96
96
96
93
90
89
86
83
82
82
82
82
87
86
85
84

Pressure (mb)

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

Ozone (du)

367
365
362
359
356
355
353
351
348
345
343
341
339
338
337
337
335
335
335
335
335
334
334
335

Saturday 26

Waning Crescent 3%

05:37

19:25

00 Good
01 Good
02 Good
03 Good
04 Good
05 OK
06 Bad
07 Bad
08 OK
09 OK
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: 06:22, Set: 20:54, Transit: 13:38. Moon - Rise: 05:37, Set: 19:25. Civil Dark: 21:30 - 05:45. Nautical Dark: 22:17 - 04:59. Astro Dark: 23:12 - 04:03

Total Clouds (% Sky Obscured)

7
1
1
2
8
31
39
45
25
44
57
51
51
64
69
69
75
72
69
64
65
63
64
64

Low Clouds (% Sky Obscured)

7
1
0
0
0
0
0
0
0
0
0
35
38
14
16
18
19
16
13
12
16
18
17
5

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
8
11
14
14
15
14
14
14
16
16
16
21

High Clouds (% Sky Obscured)

0
1
1
2
8
31
39
45
25
44
57
36
6
7
9
10
25
25
25
21
18
17
20
17

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

8
9
8
7
7
6
5
4
5
8
10
12
13
15
16
15
15
14
15
14
14
11
9
7

Dew Point (°C)

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

Relative Humidity (%)

88
90
90
91
91
90
90
90
87
80
71
63
56
49
47
45
45
46
50
59
67
67
63
64

Pressure (mb)

1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1020
1020
1020
1020
1020
1021
1021
1022
1022

Ozone (du)

336
335
334
335
336
336
336
335
335
336
336
338
339
339
339
338
337
335
336
336
337
339
341
341

Sunday 27

New Moon 0%

05:52

20:59

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

Sun - Rise: 06:20, Set: 20:55, Transit: 13:37. Moon - Rise: 05:52, Set: 20:59. Civil Dark: 21:32 - 05:43. Nautical Dark: 22:19 - 04:56. Astro Dark: 23:15 - 04:00

Total Clouds (% Sky Obscured)

69
74
75
72
68
71
74
76
53
33
14
29
43
57
64
66
64
62
55
47
33
49
47
52

Low Clouds (% Sky Obscured)

3
1
0
0
0
10
19
29
19
10
0
2
4
5
4
2
0
0
0
1
0
10
14
15

Medium Clouds (% Sky Obscured)

17
19
19
19
19
22
22
22
19
14
5
7
10
10
18
31
45
35
28
16
12
5
0
6

High Clouds (% Sky Obscured)

17
18
14
7
1
0
0
0
0
0
0
16
32
48
64
66
64
62
55
47
33
22
5
3

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
4
3
2
2
2
2
3
3
3
3
4
4
5
5
5
5
5
4
5
4
3
4

Chance of Frost

Temperature (°C)

10
10
9
9
9
8
9
9
10
12
14
15
16
17
18
18
19
19
18
18
15
13
12
12

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

71
76
80
82
84
84
81
80
74
66
61
56
53
50
47
46
45
44
45
56
62
65
64
61

Pressure (mb)

1022
1023
1022
1022
1023
1023
1023
1023
1024
1024
1024
1024
1024
1024
1023
1023
1023
1023
1023
1023
1023
1024
1024
1024

Ozone (du)

342
342
341
342
342
341
342
344
345
346
346
347
349
350
350
351
352
352
352
352
352
351
352
353

Monday 28

Waxing Crescent 1%

06:12

22:35

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

Sun - Rise: 06:18, Set: 20:57, Transit: 13:37. Moon - Rise: 06:12, Set: 22:35. Civil Dark: 21:34 - 05:41. Nautical Dark: 22:21 - 04:54. Astro Dark: 23:18 - 03:57

Total Clouds (% Sky Obscured)

39
68
54
42
35
23
34
11
20
24
27
26
23
20
17
16
14
29
39
39
36
33
35
35

Low Clouds (% Sky Obscured)

6
1
1
1
1
2
2
2
2
3
3
2
1
1
4
7
11
19
23
26
21
25
25
34

Medium Clouds (% Sky Obscured)

14
20
54
42
35
23
34
11
8
5
3
2
1
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
5
4
3

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)

3
2
2
3
2
2
2
1
1
3
4
5
6
6
7
6
6
6
6
7
7
7
6
6

Chance of Frost

Temperature (°C)

12
11
10
10
9
10
9
9
11
12
14
15
16
17
18
19
19
19
18
17
15
14
13
12

Feels Like (°C)

11
10
8
8
8
8
8
8
12
12
13
13
14
14
15
19
19
19
19
19
19
13
13
12

Dew Point (°C)

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

Relative Humidity (%)

60
67
71
71
76
71
77
77
72
66
62
57
54
50
47
47
47
46
52
59
68
69
70
71

Pressure (mb)

1024
1024
1024
1024
1024
1024
1024
1025
1025
1024
1024
1024
1024
1023
1023
1022
1022
1021
1021
1021
1021
1021
1021
1021

Ozone (du)

356
359
361
364
366
368
367
367
367
366
366
365
364
363
362
361
360
359
357
356
354
353
353
352

Tuesday 29

Waxing Crescent 5%

06:39

No Set

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

Sun - Rise: 06:16, Set: 20:58, Transit: 13:37. Moon - Rise: 06:39, Set: No Set. Civil Dark: 21:36 - 05:39. Nautical Dark: 22:23 - 04:51. Astro Dark: 23:21 - 03:54

Total Clouds (% Sky Obscured)

50
55
47
36
25
15
8
4
4
5
5
6
6
7
12
19
25
22
18
15
10
7
3
3

Low Clouds (% Sky Obscured)

25
4
4
3
2
1
1
0
0
0
0
0
0
0
4
8
12
8
5
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
3
2
2
2
1
0
0
0

High Clouds (% Sky Obscured)

8
20
31
21
9
8
6
3
3
4
4
5
5
5
5
5
5
4
3
3
3
3
3
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 (%)

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

Chance of Frost

Temperature (°C)

11
11
10
9
9
8
9
9
10
12
14
16
18
19
21
21
21
21
21
20
19
17
16
14

Feels Like (°C)

12
12
11
7
7
7
7
7
7
10
11
12
13
14
15
20
20
20
21
21
22
17
16
16

Dew Point (°C)

7
6
6
5
5
4
5
5
6
7
8
8
9
10
10
10
10
10
11
12
13
12
11
10

Relative Humidity (%)

73
74
76
76
75
75
75
77
78
71
65
60
57
54
50
51
50
49
55
61
68
71
74
76

Pressure (mb)

1021
1021
1021
1021
1021
1021
1021
1020
1020
1020
1020
1020
1020
1019
1019
1018
1018
1017
1017
1017
1017
1017
1018
1018

Ozone (du)

351
350
350
349
348
347
347
347
347
346
346
345
345
345
345
344
344
343
343
343
344
343
343
342

Wednesday 30

Waxing Crescent 12%

07:18

00:08

Sun - Rise: 06:14, Set: 21:00, Transit: 13:37. Moon - Rise: 07:18, Set: 00:08. Civil Dark: 21:37 - 05:37. Nautical Dark: 22:25 - 04:49. Astro Dark: 23:24 - 03:50

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

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

Generated: 24/04/25 09:30:07. Forecast: 24/04/25 to 30/04/25. Timezone: UTC+2.00