Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 20

Waxing Crescent 14%

08:31

01:37

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

Sun - Rise: 06:32, Set: 20:44, Transit: 13:39. Moon - Rise: 08:31, Set: 01:37. Civil Dark: 21:19 - 05:56. Nautical Dark: 22:04 - 05:11. Astro Dark: 22:55 - 04:20

Total Clouds (% Sky Obscured)

57
52
65
57
76
44
28
41
37
10
15
54
65
70
94
94
88
89
66
81
71
53
74
51

Low Clouds (% Sky Obscured)

36
15
5
7
3
30
0
36
30
8
7
36
37
51
63
89
87
89
64
80
70
40
32
0

Medium Clouds (% Sky Obscured)

0
0
25
41
62
23
24
28
10
0
4
22
29
32
50
37
1
1
0
0
0
17
38
34

High 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

ISS Passover

Visibility (miles)

9
9
9
9
7
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
1
0
17
27
18
3
9
0
1
2
6
5
6
3
0
2
0
0
0
12
3
3
3

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

8
8
8
9
9
10
8
7
6
6
4
4
3
3
2
2
2
2
4
3
4
5
6
8

Dew Point (°C)

0
0
1
2
3
6
6
6
7
7
6
4
3
3
3
3
3
4
4
4
5
5
4
4

Relative Humidity (%)

45
43
44
47
54
68
73
80
95
96
96
94
91
89
89
89
89
90
88
81
78
68
62
55

Pressure (mb)

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

Ozone (du)

421
421
423
424
423
423
424
424
425
426
428
430
430
427
424
420
417
416
415
416
417
418
420
423

Tuesday 21

Waxing Crescent 23%

09:41

02:41

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

Sun - Rise: 06:30, Set: 20:45, Transit: 13:38. Moon - Rise: 09:41, Set: 02:41. Civil Dark: 21:21 - 05:54. Nautical Dark: 22:06 - 05:09. Astro Dark: 22:57 - 04:17

Total Clouds (% Sky Obscured)

66
42
45
57
58
32
0
13
18
0
22
0
0
0
0
0
0
0
0
0
0
0
0
1

Low Clouds (% Sky Obscured)

42
39
23
44
47
29
0
13
18
0
22
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

27
0
23
39
28
10
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
0
0
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
4
0
8
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
13
13
12
10
9
9
9
9
8
8
7
7
7
7
7
6
7
10
10
11
12
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

9
9
9
10
10
12
10
8
7
5
4
4
4
3
2
2
1
1
3
3
5
8
9
9

Dew Point (°C)

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

Relative Humidity (%)

47
46
54
52
56
60
66
68
70
69
72
75
80
83
83
86
86
86
79
66
60
53
48
46

Pressure (mb)

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

Ozone (du)

425
426
425
423
420
416
414
414
415
415
414
408
404
400
396
391
389
386
385
390
395
395
400
403

Wednesday 22

Waxing Crescent 34%

11:03

03:26

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 OK
10 Bad
11 OK
12 OK
13 OK

Sun - Rise: 06:28, Set: 20:47, Transit: 13:38. Moon - Rise: 11:03, Set: 03:26. Civil Dark: 21:23 - 05:52. Nautical Dark: 22:08 - 05:07. Astro Dark: 23:00 - 04:14

Total Clouds (% Sky Obscured)

1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
18
35
52
45
37
30

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
16
33
49
36
18
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
1
2
4

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
4
5
9
13
15

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

Chance of Frost

Temperature (°C)

14
15
15
16
15
15
13
11
9
8
7
7
6
5
5
4
4
3
4
5
7
8
10
12

Feels Like (°C)

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

Dew Point (°C)

3
2
2
3
5
6
7
5
4
4
4
3
3
3
3
2
2
1
1
0
-0
-1
-1
-1

Relative Humidity (%)

45
42
41
43
51
55
64
67
70
74
77
78
79
82
85
86
89
88
79
68
62
55
46
41

Pressure (mb)

1028
1027
1027
1027
1027
1027
1027
1028
1028
1029
1029
1029
1029
1029
1030
1030
1030
1030
1030
1030
1030
1030
1030
1029

Ozone (du)

404
402
400
397
393
391
391
393
395
397
395
393
393
392
388
383
378
375
373
372
372
371
370
368

Thursday 23

Waxing Crescent 46%

12:28

03:56

14 OK
15 OK
16 OK
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
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
11 Bad
12 Bad
13 Bad

Sun - Rise: 06:26, Set: 20:48, Transit: 13:38. Moon - Rise: 12:28, Set: 03:56. Civil Dark: 21:24 - 05:50. Nautical Dark: 22:10 - 05:04. Astro Dark: 23:03 - 04:11

Total Clouds (% Sky Obscured)

34
39
41
56
69
82
69
57
45
57
68
79
78
80
86
88
91
95
86
78
79
84
73
62

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
27
54
79
78
80
86
88
88
87
86
78
79
80
73
62

Medium Clouds (% Sky Obscured)

3
2
1
11
15
22
17
12
7
5
3
0
0
0
0
0
0
0
0
0
0
15
33
45

High Clouds (% Sky Obscured)

22
26
32
41
53
63
55
42
26
31
35
38
45
52
58
72
86
95
86
78
79
84
73
62

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

39
39
40
43
53
59
67
73
81
85
91
96
96
96
96
94
96
96
91
79
70
67
63
61

Pressure (mb)

1029
1028
1027
1027
1026
1026
1026
1026
1027
1027
1027
1026
1026
1026
1025
1025
1025
1025
1024
1024
1024
1024
1024
1023

Ozone (du)

366
365
366
367
366
363
361
361
363
366
367
366
366
365
365
365
365
364
363
362
362
361
359
357

Friday 24

First Quarter 58%

13:51

04:18

14 Bad
15 Bad
16 Bad
17 Bad
18 OK
19 OK
20 OK
21 OK
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
11 Bad
12 Bad
13 Bad

Sun - Rise: 06:24, Set: 20:50, Transit: 13:38. Moon - Rise: 13:51, Set: 04:18. Civil Dark: 21:26 - 05:48. Nautical Dark: 22:12 - 05:02. Astro Dark: 23:05 - 04:07

Total Clouds (% Sky Obscured)

58
73
86
61
40
26
31
37
40
48
48
50
59
67
82
86
89
91
93
95
98
99
99
100

Low Clouds (% Sky Obscured)

56
48
44
38
34
26
31
37
40
44
46
42
57
67
82
86
89
90
92
95
98
92
84
77

Medium Clouds (% Sky Obscured)

33
13
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)

58
73
86
61
33
0
0
0
0
13
27
40
32
23
14
10
5
0
0
0
5
23
42
64

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
2
2
2
4
3
2
6
9
11

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

Chance of Frost

Temperature (°C)

14
15
15
16
15
14
12
10
8
6
6
5
5
5
6
7
7
7
7
8
8
9
10
12

Feels Like (°C)

11
12
12
12
13
12
11
8
6
5
5
4
4
4
4
4
4
4
4
5
5
6
5
5

Dew Point (°C)

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

Relative Humidity (%)

58
56
56
55
59
63
70
80
84
91
94
94
96
91
86
81
79
79
78
77
74
72
65
61

Pressure (mb)

1023
1022
1022
1022
1022
1022
1022
1022
1023
1023
1023
1023
1023
1023
1022
1022
1022
1022
1022
1022
1023
1023
1022
1022

Ozone (du)

357
358
358
357
357
357
356
357
358
358
359
364
365
368
370
373
377
381
385
384
383
382
380
377

Saturday 25

Waxing Gibbous 68%

No Rise

04:34

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
13 Bad

Sun - Rise: 06:22, Set: 20:52, Transit: 13:38. Moon - Rise: No Rise, Set: 04:34. Civil Dark: 21:28 - 05:46. Nautical Dark: 22:14 - 04:59. Astro Dark: 23:08 - 04:04

Total Clouds (% Sky Obscured)

94
86
75
74
72
67
61
57
54
62
60
55
65
70
68
74
78
85
86
87
89
83
78
70

Low Clouds (% Sky Obscured)

64
52
40
40
39
39
38
38
37
32
26
26
22
22
27
50
66
80
83
84
85
80
77
70

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

51
40
30
26
19
10
8
6
3
3
3
2
4
4
5
11
16
20
19
22
29
25
19
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 (%)

9
7
5
6
10
11
10
10
9
8
6
2
2
2
0
3
3
1
2
1
0
2
3
3

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

5
11
11
10
11
11
12
9
9
9
7
7
7
3
3
3
3
3
2
5
5
4
5
5

Dew Point (°C)

5
4
4
4
4
5
5
5
5
5
4
3
3
3
3
3
3
3
3
3
4
4
4
4

Relative Humidity (%)

55
52
50
48
54
61
67
72
77
84
85
85
88
89
93
93
88
83
78
75
73
70
64
60

Pressure (mb)

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

Ozone (du)

375
374
374
374
375
376
378
381
384
387
386
386
386
386
386
387
390
392
395
395
394
393
393
393

Sunday 26

Waxing Gibbous 78%

15:10

04:47

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

Sun - Rise: 06:20, Set: 20:53, Transit: 13:38. Moon - Rise: 15:10, Set: 04:47. Civil Dark: 21:30 - 05:44. Nautical Dark: 22:16 - 04:57. Astro Dark: 23:11 - 04:01

Total Clouds (% Sky Obscured)

69
67
64
62
59
54
53
51
53
41
28
16
13
9
6
20
33
46

Low Clouds (% Sky Obscured)

67
58
50
39
33
30
36
47
53
41
28
16
13
9
4
15
27
38

Medium Clouds (% Sky Obscured)

0
1
1
7
12
19
13
6
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

13
24
29
33
37
54
53
46
32
25
19
11
11
8
5
8
12
15

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

2
1
0
1
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

13
14
14
14
14
13
13
12
10
9
8
7
6
6
5
5
5
6

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

55
55
53
52
59
66
74
75
76
77
79
82
86
86
86
86
85
83

Pressure (mb)

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

Ozone (du)

393
393
394
395
395
394
394
393
393
392
393
394
395
395
394
394
397
400

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

Generated: 20/04/26 14:30:10. Forecast: 20/04/26 to 26/04/26. Timezone: UTC+2.00