Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 18

Waxing Crescent 2%

06:38

22:46

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 OK
01 Good
02 Good
03 Good

Sun - Rise: 06:40, Set: 20:43, Transit: 13:41. Moon - Rise: 06:38, Set: 22:46. Civil Dark: 21:18 - 06:05. Nautical Dark: 22:02 - 05:21. Astro Dark: 22:52 - 04:31

Total Clouds (% Sky Obscured)

84
87
91
100
99
95
100
93
96
96
94
100
99
100
94
100
93
81
57
57
34
0
4
0

Low Clouds (% Sky Obscured)

64
67
78
65
46
49
35
53
53
57
58
59
64
77
79
72
65
44
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

45
87
91
100
98
93
99
78
43
95
56
64
55
38
59
80
55
44
40
37
20
0
2
0

High Clouds (% Sky Obscured)

19
53
84
89
16
1
1
3
10
5
69
93
90
90
5
0
54
22
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
7
8
9
4
7
9
9
4
4
6
9
8
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
Light Rain
None
None
None
Light Rain
None
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

1
0
0
39
47
76
34
25
55
89
61
55
49
32
32
22
23
10
4
2
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0.6
0
0
0
0.8
0
0.2
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

2
2
2
3
1
4
4
3
4
7
6
5
6
11
10
8
7
6
5
4
4
3
2
2

Chance of Frost

Temperature (°C)

11
11
11
12
12
13
16
17
17
17
17
17
17
16
15
13
13
12
11
10
9
8
7
7

Feels Like (°C)

11
11
11
11
12
12
15
16
17
15
16
16
16
13
12
12
12
11
10
10
9
9
8
6

Dew Point (°C)

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

Relative Humidity (%)

83
84
86
87
92
92
96
87
81
78
89
83
86
81
80
75
72
75
77
80
81
82
84
84

Pressure (mb)

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

Ozone (du)

351
350
352
351
354
358
361
364
366
372
374
376
378
376
375
375
375
375
376
377
380
387
396
405

Sunday 19

Waxing Crescent 6%

07:03

00:18

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
03 Bad

Sun - Rise: 06:38, Set: 20:44, Transit: 13:41. Moon - Rise: 07:03, Set: 00:18. Civil Dark: 21:20 - 06:03. Nautical Dark: 22:04 - 05:18. Astro Dark: 22:55 - 04:28

Total Clouds (% Sky Obscured)

53
48
42
56
69
39
54
67
56
85
64
54
66
67
63
46
55
53
53
50
63
62
71
69

Low Clouds (% Sky Obscured)

36
18
26
46
55
34
52
64
41
64
46
54
63
63
38
24
42
51
50
50
63
59
60
59

Medium Clouds (% Sky Obscured)

11
14
12
10
8
1
0
0
10
24
16
0
0
0
0
0
0
4
5
50
24
3
9
25

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
5
28
34
32
20
25
20
20
0
0
0

ISS Passover

Visibility (miles)

9
8
9
8
9
9
8
8
9
9
9
8
7
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 (%)

13
23
30
18
3
32
51
36
26
29
35
30
25
18
15
3
0
0
1
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)

2
2
5
3
4
6
8
9
9
9
10
11
11
10
11
11
10
8
7
7
6
6
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

4
3
3
4
6
8
10
11
11
12
12
11
11
11
10
9
8
6
5
4
4
3
5
4

Dew Point (°C)

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

Relative Humidity (%)

79
80
90
93
88
81
75
67
58
52
50
55
55
55
59
64
65
67
70
73
74
74
78
78

Pressure (mb)

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

Ozone (du)

410
414
415
415
416
418
419
419
416
413
412
410
408
406
403
401
399
399
399
399
398
399
402
404

Monday 20

Waxing Crescent 14%

07:40

01:39

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

Sun - Rise: 06:36, Set: 20:46, Transit: 13:41. Moon - Rise: 07:40, Set: 01:39. Civil Dark: 21:21 - 06:00. Nautical Dark: 22:06 - 05:16. Astro Dark: 22:57 - 04:25

Total Clouds (% Sky Obscured)

67
68
72
70
68
66
93
80
75
98
93
90
77
45
41
32
16
15
29
30
43
48
57
63

Low Clouds (% Sky Obscured)

63
63
65
65
67
54
60
60
48
48
54
36
42
9
4
29
16
1
7
30
36
41
55
63

Medium Clouds (% Sky Obscured)

30
24
24
23
4
23
60
32
37
61
51
47
27
14
18
11
0
6
9
4
12
18
15
10

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
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
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

1
0
0
1
3
16
19
22
5
1
0
0
0
0
0
0
0
0
0
0
0
1
1
1

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
83
86
88
82
75
65
58
52
48
45
43
44
46
46
48
53
56
61
66
78
90
91
91

Pressure (mb)

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

Ozone (du)

405
406
407
407
407
408
408
410
413
413
414
414
413
413
413
414
414
415
413
414
414
416
415
415

Tuesday 21

Waxing Crescent 23%

08:33

02:44

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 OK
20 Good
21 Good
22 Good
23 Good
00 Good
01 Good
02 Good
03 Good

Sun - Rise: 06:34, Set: 20:48, Transit: 13:41. Moon - Rise: 08:33, Set: 02:44. Civil Dark: 21:23 - 05:58. Nautical Dark: 22:08 - 05:13. Astro Dark: 23:00 - 04:22

Total Clouds (% Sky Obscured)

68
80
82
90
90
91
91
93
94
97
95
73
88
53
59
37
15
9
1
1
0
1
0
0

Low Clouds (% Sky Obscured)

68
80
82
81
78
72
67
74
83
91
88
73
80
53
40
21
11
5
1
0
0
1
0
0

Medium Clouds (% Sky Obscured)

8
10
12
11
11
15
16
11
10
8
9
12
13
17
16
10
7
3
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
2
6
16
18
27
6
16
10
18
9
20
6
15
3
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)

8
7
7
6
8
9
10
11
12
12
13
12
14
12
13
11
10
9
10
9
8
8
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
91
94
94
93
90
91
88
85
78
76
73
60
63
60
65
65
71
69
70
74
77
79
76

Pressure (mb)

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

Ozone (du)

415
415
416
416
417
417
418
417
416
414
414
412
409
404
400
396
393
393
394
395
395
394
392
390

Wednesday 22

Waxing Crescent 34%

09:43

03:28

04 Good
05 Good
06 Good
07 Good
08 Good
09 Good
10 Good
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

Sun - Rise: 06:32, Set: 20:49, Transit: 13:41. Moon - Rise: 09:43, Set: 03:28. Civil Dark: 21:25 - 05:56. Nautical Dark: 22:10 - 05:11. Astro Dark: 23:03 - 04:18

Total Clouds (% Sky Obscured)

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

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
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
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

3
3
3
2
3
5
7
9
10
11
12
12
13
13
13
13
12
11
10
10
9
9
9
5

Dew Point (°C)

2
1
1
1
1
2
2
2
2
2
2
2
2
2
3
3
3
3
3
3
3
3
3
3

Relative Humidity (%)

78
79
80
80
75
65
56
50
46
42
41
39
39
38
41
44
50
54
60
66
69
73
76
79

Pressure (mb)

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

Ozone (du)

387
384
380
380
382
387
391
393
394
394
392
392
391
389
388
389
390
391
392
393
392
391
390
388

Thursday 23

Waxing Crescent 46%

11:05

03:59

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

Sun - Rise: 06:30, Set: 20:51, Transit: 13:40. Moon - Rise: 11:05, Set: 03:59. Civil Dark: 21:27 - 05:54. Nautical Dark: 22:12 - 05:08. Astro Dark: 23:05 - 04:15

Total Clouds (% Sky Obscured)

2
16
32
56
63
65
68
63
53
43
32
31
31
28
29
35
41
57
62
69
71
72
71
72

Low Clouds (% Sky Obscured)

2
16
32
56
63
65
68
39
29
14
9
13
18
20
23
24
22
16
13
14
13
13
14
13

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
0
0
0
0
0
0
0
0
0
0
0
28
29
35
41
57
62
67
62
63
59
56

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
83
81
81
79
70
62
57
49
44
39
40
40
40
46
53
61
68
77
88
88
90
91
91

Pressure (mb)

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

Ozone (du)

386
384
384
384
383
383
382
382
382
383
383
380
376
373
370
367
365
366
368
369
370
371
371
370

Friday 24

First Quarter 58%

12:30

03:59

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

Sun - Rise: 06:28, Set: 20:52, Transit: 13:40. Moon - Rise: 12:30, Set: 03:59. Civil Dark: 21:29 - 05:52. Nautical Dark: 22:15 - 05:06. Astro Dark: 23:08 - 04:12

Total Clouds (% Sky Obscured)

73
75
77
78
85
93
100
83
67
51
41
33
24
21
20
23
35
43
44
57
70
83

Low Clouds (% Sky Obscured)

13
21
26
29
26
19
20
22
19
15
18
20
22
17
11
2
17
31
44
57
70
83

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
5
8
12
8
4
0

High Clouds (% Sky Obscured)

27
51
29
42
47
52
62
51
34
19
8
6
5
21
20
23
35
33
24
15
7
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

Fog (%)

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

Precipitation Probability (%)

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

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

4
4
3
3
2
4
5
6
6
6
7
12
12
12
12
12
13
6
6
5
4
4

Dew Point (°C)

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

Relative Humidity (%)

91
91
85
80
76
74
73
69
66
62
58
58
57
56
61
65
71
73
77
81
75
70

Pressure (mb)

1018
1018
1018
1018
1018
1018
1018
1018
1017
1017
1016
1015
1015
1014
1014
1014
1014
1014
1014
1014
1013
1013

Ozone (du)

369
367
367
367
367
368
368
369
370
372
373
373
373
373
374
375
376
377
378
379
378
378

Forecast for Brussels, Bruxelles-Capitale, Kingdom of Belgium (50.85,4.35)

Generated: 18/04/26 04:26:35. Forecast: 18/04/26 to 24/04/26. Timezone: UTC+2.00