Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 26

Waxing Gibbous 78%

15:10

04:34

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

Sun - Rise: 06:22, Set: 20:53, Transit: 13:38. Moon - Rise: 15:10, Set: 04:34. Civil Dark: 21:30 - 05:46. Nautical Dark: 22:16 - 04:59. Astro Dark: 23:11 - 04:04

Total Clouds (% Sky Obscured)

69
66
51
62
84
79
48
18
1
9
8
32
19
16
5
93
37
100
100
100
75
94
91
75

Low Clouds (% Sky Obscured)

0
0
27
53
61
57
40
0
0
9
4
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

40
32
37
62
56
47
14
16
1
1
0
0
0
2
1
4
0
2
28
64
75
66
85
74

High Clouds (% Sky Obscured)

0
0
1
0
1
1
1
0
0
0
4
32
19
15
5
92
37
98
100
80
45
77
30
14

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

Chance of Frost

Temperature (°C)

7
6
6
5
4
6
7
9
11
13
14
15
16
17
17
17
16
15
13
11
10
9
8
8

Feels Like (°C)

5
4
4
3
2
3
4
6
9
11
13
14
14
14
15
15
14
12
9
8
6
6
5
5

Dew Point (°C)

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

Relative Humidity (%)

70
81
90
93
93
86
77
67
61
57
54
50
48
45
44
45
58
66
63
65
65
62
65
66

Pressure (mb)

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

Ozone (du)

376
378
378
377
376
379
380
380
380
379
378
378
377
375
373
373
371
368
367
367
369
370
369
368

Monday 27

Waxing Gibbous 86%

16:26

04:47

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
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad

Sun - Rise: 06:20, Set: 20:55, Transit: 13:38. Moon - Rise: 16:26, Set: 04:47. Civil Dark: 21:32 - 05:44. Nautical Dark: 22:18 - 04:57. Astro Dark: 23:14 - 04:01

Total Clouds (% Sky Obscured)

44
73
91
100
100
100
100
100
100
81
84
69
72
100
95
71
79
100
78
100
86
86
97
92

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)

33
56
79
88
73
99
100
90
98
69
76
57
69
71
80
71
79
84
78
99
64
74
92
87

High Clouds (% Sky Obscured)

10
16
77
99
100
100
74
100
100
0
0
0
18
88
72
1
5
76
17
0
2
54
90
32

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
1
2
2
5
2

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

Chance of Frost

Temperature (°C)

7
7
6
6
5
7
8
10
12
14
15
16
17
18
18
17
17
15
13
11
11
10
9
9

Feels Like (°C)

4
4
3
2
2
4
5
7
8
11
12
13
15
15
15
15
14
13
10
8
7
8
6
6

Dew Point (°C)

1
1
1
0
0
2
2
3
3
3
3
3
3
3
4
5
8
8
6
4
5
4
4
5

Relative Humidity (%)

66
67
67
67
68
70
63
59
54
48
43
40
39
37
39
44
55
62
61
62
66
68
70
73

Pressure (mb)

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

Ozone (du)

368
366
364
364
368
370
370
371
374
374
376
377
377
376
377
378
379
384
388
392
397
397
399
404

Tuesday 28

Waxing Gibbous 92%

17:40

04:59

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

Sun - Rise: 06:18, Set: 20:56, Transit: 13:37. Moon - Rise: 17:40, Set: 04:59. Civil Dark: 21:33 - 05:41. Nautical Dark: 22:21 - 04:54. Astro Dark: 23:17 - 03:58

Total Clouds (% Sky Obscured)

76
78
82
73
49
91
97
98
67
58
51
43
58
50
56
70
42
40
35
34
25
18
14
19

Low Clouds (% Sky Obscured)

0
0
0
1
1
16
0
8
1
2
0
0
0
0
0
12
0
0
0
1
0
0
0
0

Medium Clouds (% Sky Obscured)

75
78
81
73
49
79
81
74
67
58
51
43
39
50
56
40
33
29
14
13
10
9
14
19

High Clouds (% Sky Obscured)

14
5
12
13
9
38
68
75
11
2
2
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 (%)

1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
5
4
4
3
3
4
5
7
9
10
11
13
14
15
14
14
13
12
10
9
9
8
7

Dew Point (°C)

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

Relative Humidity (%)

73
77
81
85
85
78
70
64
59
54
51
48
46
46
48
53
55
63
64
66
66
70
76
80

Pressure (mb)

1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1019
1019
1019
1018
1018
1018
1018
1018
1019
1019
1020
1020
1020
1020

Ozone (du)

411
413
413
414
416
417
418
421
422
422
421
421
420
418
418
418
416
413
411
410
408
406
405
405

Wednesday 29

Waxing Gibbous 97%

18:53

05:11

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

Sun - Rise: 06:16, Set: 20:58, Transit: 13:37. Moon - Rise: 18:53, Set: 05:11. Civil Dark: 21:35 - 05:39. Nautical Dark: 22:23 - 04:52. Astro Dark: 23:20 - 03:54

Total Clouds (% Sky Obscured)

4
0
0
0
0
0
3
10
10
10
5
10
15
20
20
25
25
25
30
40
40
45
45
45

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)

4
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
0
0
0
0
3
10
5
0
0
0
0
0
0
0
0
0
0
5
5
5
10
5

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

5
6
5
4
4
4
5
7
7
9
11
12
12
13
13
12
12
10
9
7
6
5
4
3

Dew Point (°C)

6
5
4
3
2
2
3
4
5
6
7
7
7
8
7
6
6
6
4
3
2
2
1
1

Relative Humidity (%)

80
77
74
70
68
65
61
56
55
53
50
49
46
47
47
47
50
53
48
49
51
54
55
56

Pressure (mb)

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

Ozone (du)

405
404
403
401
401
400
398
394
393
394
395
395
394
391
389
389
387
389
390
391
390
389
389
387

Thursday 30

Waxing Gibbous 99%

20:07

05:23

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

Sun - Rise: 06:15, Set: 21:00, Transit: 13:37. Moon - Rise: 20:07, Set: 05:23. Civil Dark: 21:37 - 05:37. Nautical Dark: 22:25 - 04:49. Astro Dark: 23:23 - 03:51

Total Clouds (% Sky Obscured)

45
45
40
35
35
30
10
7
13
33
40
45
55
55
43
37
27
25
24
24
31
38
45
36

Low Clouds (% Sky Obscured)

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

5
5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
3
4
13
13

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)

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

Chance of Frost

Temperature (°C)

8
7
7
6
6
7
10
13
15
17
18
19
20
20
20
19
17
16
14
13
11
10
10
9

Feels Like (°C)

2
2
2
1
1
2
5
8
10
12
13
14
15
15
15
15
16
16
12
12
12
11
10
10

Dew Point (°C)

1
-0
0
-0
-0
1
3
3
3
3
4
4
5
7
8
8
9
9
7
4
2
1
1
0

Relative Humidity (%)

60
59
63
63
63
63
60
50
45
41
38
35
38
41
43
49
56
64
60
56
53
53
53
53

Pressure (mb)

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

Ozone (du)

386
384
382
381
381
381
382
382
383
382
381
380
380
380
380
380
379
379
378
378
378
377
377
376

Friday 1

Full Moon 100%

21:21

05:38

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

Sun - Rise: 06:13, Set: 21:01, Transit: 13:37. Moon - Rise: 21:21, Set: 05:38. Civil Dark: 21:39 - 05:35. Nautical Dark: 22:27 - 04:47. Astro Dark: 23:26 - 03:48

Total Clouds (% Sky Obscured)

41
50
40
34
34
36
35
33
29
32
40
30
25
30
30
35
35
45
54
63
71
79
89
92

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
11
21
29
30
35
35
30
31
34
38
42
46
37

Medium Clouds (% Sky Obscured)

0
0
1
2
3
8
13
18
29
32
40
30
25
30
30
35
35
45
54
63
71
71
68
73

High Clouds (% Sky Obscured)

22
31
40
34
34
36
35
33
29
32
40
30
25
27
30
35
35
30
29
34
44
50
57
66

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
3
12
20
46
65
79
74
66
56
47
43
45
61

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

9
8
8
8
8
9
11
13
16
17
19
20
21
22
22
21
20
19
17
16
14
14
14
14

Feels Like (°C)

5
5
5
4
4
4
6
7
9
10
10
11
18
19
19
20
20
21
16
16
14
15
14
14

Dew Point (°C)

-0
0
0
1
2
3
4
5
6
8
10
12
13
14
15
15
16
17
15
15
13
13
13
13

Relative Humidity (%)

54
56
58
61
63
65
60
57
53
55
57
59
61
61
63
70
77
88
89
92
92
95
95
96

Pressure (mb)

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

Ozone (du)

375
374
372
372
371
370
370
370
369
369
368
368
367
367
366
366
366
367
367
368
368
369
370
370

Saturday 2

Waning Gibbous 98%

22:34

05:56

Sun - Rise: 06:11, Set: 21:03, Transit: 13:37. Moon - Rise: 22:34, Set: 05:56. Civil Dark: 21:40 - 05:33. Nautical Dark: 22:29 - 04:45. Astro Dark: 23:29 - 03:44

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: 26/04/26 03:30:23. Forecast: 26/04/26 to 02/05/26. Timezone: UTC+2.00