Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 24

First Quarter 58%

12:30

04:20

05 Good
06 Good
07 Good
08 OK
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 OK
22 Bad
23 Bad
00 Good
01 Bad
02 Bad
03 Good
04 Bad

Sun - Rise: 06:28, Set: 20:52, Transit: 13:40. Moon - Rise: 12:30, Set: 04:20. Civil Dark: 21:29 - 05:52. Nautical Dark: 22:15 - 05:06. Astro Dark: 23:08 - 04:09

Total Clouds (% Sky Obscured)

1
2
8
37
8
5
2
5
9
1
1
0
0
12
0
4
36
71
93
5
56
62
7
57

Low Clouds (% Sky Obscured)

0
2
8
37
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
6

High Clouds (% Sky Obscured)

1
1
1
0
3
2
1
2
8
1
1
0
0
12
0
4
34
61
78
5
56
51
7
34

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

Chance of Frost

Temperature (°C)

4
4
3
4
6
7
9
12
14
15
17
18
18
18
17
16
14
12
10
10
9
8
6
5

Feels Like (°C)

3
3
2
3
4
5
7
10
12
13
15
16
16
16
16
15
12
11
10
8
6
5
5
4

Dew Point (°C)

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

Relative Humidity (%)

82
80
79
71
58
49
42
36
33
31
30
30
31
35
43
54
62
65
66
67
65
63
64
64

Pressure (mb)

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

Ozone (du)

374
372
371
370
369
369
371
372
373
375
375
375
371
365
362
362
364
364
363
365
366
366
364
362

Saturday 25

Waxing Gibbous 68%

13:53

04:36

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

Sun - Rise: 06:26, Set: 20:54, Transit: 13:40. Moon - Rise: 13:53, Set: 04:36. Civil Dark: 21:30 - 05:50. Nautical Dark: 22:17 - 05:03. Astro Dark: 23:11 - 04:06

Total Clouds (% Sky Obscured)

85
98
37
43
39
0
0
0
0
0
5
68
80
86
96
96
96
97
69
11
6
100
98
57

Low Clouds (% Sky Obscured)

0
0
16
43
36
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
31
60
24

Medium Clouds (% Sky Obscured)

27
36
7
0
0
0
0
0
0
0
0
0
0
0
0
0
3
4
3
2
2
2
7
0

High Clouds (% Sky Obscured)

66
83
7
1
1
0
0
0
0
0
5
68
80
86
87
83
84
83
60
11
6
96
98
39

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)

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

Chance of Frost

Temperature (°C)

4
4
4
5
7
9
12
14
17
18
19
19
19
19
17
16
13
11
10
9
8
8
7
6

Feels Like (°C)

3
2
3
4
6
8
10
13
15
16
17
17
17
16
15
14
10
9
8
7
6
5
5
4

Dew Point (°C)

-2
-3
-3
-2
-3
-3
-3
-2
-1
-1
-0
0
1
2
4
4
2
0
-1
-1
-1
-1
0
1

Relative Humidity (%)

63
63
64
60
50
42
36
32
29
27
27
27
29
33
39
46
46
46
47
50
52
56
62
70

Pressure (mb)

1022
1021
1021
1022
1022
1022
1022
1022
1021
1021
1021
1020
1020
1020
1021
1021
1022
1022
1023
1023
1024
1024
1024
1025

Ozone (du)

363
367
369
372
372
370
366
363
361
359
358
358
356
358
361
364
367
368
368
369
370
369
368
369

Sunday 26

Waxing Gibbous 78%

15:13

04:49

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

Sun - Rise: 06:24, Set: 20:56, Transit: 13:40. Moon - Rise: 15:13, Set: 04:49. Civil Dark: 21:32 - 05:47. Nautical Dark: 22:19 - 04:58. Astro Dark: 23:14 - 04:02

Total Clouds (% Sky Obscured)

54
69
66
92
62
81
98
100
95
94
100
69
30
35
21
19
25
11
11
3
9
40
37
35

Low Clouds (% Sky Obscured)

53
36
41
50
44
25
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
1
19
12
14
21
3
0
0
60
29
8
11
4
4
3
4
4
0
3
2
1
0

High Clouds (% Sky Obscured)

23
46
49
85
34
66
98
100
95
94
100
22
10
15
16
12
11
10
11
2
1
9
10
10

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

4
3
4
5
5
6
8
9
10
12
12
12
12
12
12
11
9
8
8
7
6
5
3
2

Dew Point (°C)

3
3
4
3
3
2
2
1
1
1
1
1
1
1
3
4
3
3
3
3
3
3
3
2

Relative Humidity (%)

79
85
88
82
75
64
56
48
43
39
36
36
35
36
42
50
54
61
66
68
74
76
79
80

Pressure (mb)

1025
1025
1026
1027
1027
1027
1027
1027
1027
1026
1026
1026
1026
1025
1025
1026
1026
1027
1027
1027
1027
1027
1027
1027

Ozone (du)

368
368
370
372
372
371
371
372
373
374
373
371
371
372
372
372
372
373
374
374
373
373
374
375

Monday 27

Waxing Gibbous 86%

16:29

05:01

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

Sun - Rise: 06:22, Set: 20:57, Transit: 13:40. Moon - Rise: 16:29, Set: 05:01. Civil Dark: 21:34 - 05:45. Nautical Dark: 22:21 - 04:56. Astro Dark: 23:17 - 03:59

Total Clouds (% Sky Obscured)

30
25
25
15
20
25
50
54
70
47
25
0
26
51
91
100
95
100
96
91
88
89
91
94

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
19
39
61
60
57
89

Medium Clouds (% Sky Obscured)

0
0
0
0
0
4
1
2
3
2
1
0
9
22
30
35
40
45
48
42
83
27
16
7

High Clouds (% Sky Obscured)

10
15
20
15
15
25
43
54
70
47
25
0
26
51
91
100
95
100
67
37
5
5
5
4

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
8
5
2
20
26
30
20
13
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

2
2
2
2
4
6
9
10
13
14
15
15
15
15
14
12
10
10
8
7
6
6
6
6

Dew Point (°C)

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

Relative Humidity (%)

80
82
80
74
68
63
56
46
40
35
33
32
34
38
45
54
61
67
66
71
74
77
79
81

Pressure (mb)

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

Ozone (du)

375
375
375
376
378
378
379
380
385
390
386
386
385
384
384
383
384
384
385
386
386
387
393
400

Tuesday 28

Waxing Gibbous 92%

17:43

05:01

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 OK
02 OK
03 Bad
04 Bad

Sun - Rise: 06:20, Set: 20:59, Transit: 13:40. Moon - Rise: 17:43, Set: 05:01. Civil Dark: 21:36 - 05:43. Nautical Dark: 22:23 - 04:54. Astro Dark: 23:20 - 03:56

Total Clouds (% Sky Obscured)

94
95
96
93
48
49
51
86
87
80
74
68
62
53
45
80
75
71
60
50
40
44
50
56

Low Clouds (% Sky Obscured)

89
90
91
89
48
49
51
86
87
80
74
68
62
53
45
74
71
66
60
50
40
44
50
56

Medium Clouds (% Sky Obscured)

10
12
13
10
4
0
0
0
0
0
0
0
0
0
0
20
9
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 (%)

3
3
0
1
1
1
1
5
3
2
5
1
3
14
16
18
14
10
8
6
1
2
3
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

75
74
74
72
68
64
61
55
54
53
50
52
54
58
64
71
75
77
81
82
82
82
85
87

Pressure (mb)

1024
1024
1024
1024
1025
1025
1025
1025
1024
1024
1024
1024
1023
1023
1023
1023
1024
1024
1024
1024
1024
1024
1024
1024

Ozone (du)

404
406
409
411
412
411
410
409
408
409
409
408
408
407
404
403
401
399
397
395
392
390
389
387

Wednesday 29

Waxing Gibbous 97%

18:56

05:13

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

Sun - Rise: 06:18, Set: 21:00, Transit: 13:39. Moon - Rise: 18:56, Set: 05:13. Civil Dark: 21:38 - 05:41. Nautical Dark: 22:25 - 04:51. Astro Dark: 23:23 - 03:53

Total Clouds (% Sky Obscured)

54
50
51
44
34
23
24
22
21
26
35
44
41
39
36
26
17
9
7
5
3
2
1
0

Low Clouds (% Sky Obscured)

54
50
51
44
34
23
15
13
10
20
33
44
41
38
36
24
12
0
1
3
3
2
1
0

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
1
2
3
3
3
2
3
4
4
2
1
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 (%)

2
1
0
1
1
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
5
6
6
7
7
8
8
9
11
12
11
11
11
9
8
7
6
5
5
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
87
84
81
73
64
56
53
50
46
47
50
52
57
62
69
75
80
87
88
88
91
91
94

Pressure (mb)

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

Ozone (du)

386
385
385
384
386
387
389
388
386
385
384
383
382
381
380
379
378
378
377
377
378
378
378
378

Thursday 30

Waxing Gibbous 99%

20:09

05:25

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

Sun - Rise: 06:17, Set: 21:02, Transit: 13:39. Moon - Rise: 20:09, Set: 05:25. Civil Dark: 21:39 - 05:39. Nautical Dark: 22:27 - 04:49. Astro Dark: 23:26 - 03:49

Total Clouds (% Sky Obscured)

2
2
3
3
3
4
3
3
3
9
15
21
29
36
41
28
16
9
29
50
75

Low Clouds (% Sky Obscured)

2
2
3
3
1
1
0
0
0
6
12
17
29
36
41
28
16
9
12
6
0

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

0
1
2
2
2
2
2
3
3
7
8
10
8
5
2
3
2
2
21
37
40

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

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

Precipitation Amount (mm)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

5
5
5
5
5
5
6
6
5
5
5
5
5
6
7
7
7
7
7
7
7

Relative Humidity (%)

96
93
90
88
78
69
62
57
52
47
45
44
42
47
52
57
64
71
80
83
82

Pressure (mb)

1026
1026
1027
1027
1027
1027
1028
1027
1027
1027
1027
1026
1026
1026
1026
1026
1027
1027
1028
1028
1028

Ozone (du)

378
378
379
380
381
381
382
383
384
385
384
384
384
383
382
381
381
381
381
381
381

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

Generated: 24/04/26 05:37:09. Forecast: 24/04/26 to 30/04/26. Timezone: UTC+2.00