Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 17

New Moon 0%

06:38

21:13

13 OK
14 OK
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

Sun - Rise: 06:40, Set: 20:41, Transit: 13:42. Moon - Rise: 06:38, Set: 21:13. Civil Dark: 21:16 - 06:05. Nautical Dark: 22:00 - 05:21. Astro Dark: 22:49 - 04:31

Total Clouds (% Sky Obscured)

34
40
60
100
85
85
84
59
59
88
60
86
83
86
95
94
95
99
100
95
97
94
95
71

Low Clouds (% Sky Obscured)

2
25
25
69
8
16
13
13
13
2
3
28
10
44
28
37
50
68
77
43
45
48
22
41

Medium Clouds (% Sky Obscured)

34
27
36
49
40
37
41
30
31
24
36
53
64
51
60
70
74
56
90
93
88
37
83
45

High Clouds (% Sky Obscured)

30
40
26
18
13
7
10
1
0
72
1
3
1
1
2
15
12
87
30
14
2
3
5
14

ISS Passover

Visibility (miles)

9
9
9
7
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
7
8
9
8
7

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
Very Light Rain
None

Precipitation Probability (%)

0
0
11
2
3
2
1
0
0
0
0
0
0
0
0
0
2
15
27
34
30
30
56
47

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
0.3
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

7
7
7
10
10
10
10
11
10
9
9
9
8
8
7
7
7
7
8
9
11
11
12
15

Relative Humidity (%)

45
44
44
54
56
57
63
68
69
74
77
80
79
76
77
77
77
77
80
84
87
84
79
89

Pressure (mb)

1022
1022
1021
1021
1021
1021
1021
1021
1022
1022
1022
1022
1022
1022
1022
1022
1021
1021
1021
1022
1022
1022
1022
1022

Ozone (du)

360
360
361
361
361
361
361
361
361
363
363
363
361
358
358
357
356
357
357
360
364
366
367
369

Saturday 18

Waxing Crescent 2%

07:03

22:46

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 Good
03 Good
04 OK
05 OK
06 Good
07 Good
08 Good
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 06:38, Set: 20:43, Transit: 13:41. Moon - Rise: 07:03, Set: 22:46. Civil Dark: 21:18 - 06:03. Nautical Dark: 22:02 - 05:18. Astro Dark: 22:52 - 04:28

Total Clouds (% Sky Obscured)

76
61
86
88
94
100
100
100
100
100
86
75
52
0
11
25
28
5
5
7
58
70
72
74

Low Clouds (% Sky Obscured)

59
39
48
58
58
88
92
83
81
87
47
45
0
0
11
24
0
0
0
4
51
48
53
53

Medium Clouds (% Sky Obscured)

62
17
25
26
29
40
45
40
30
30
15
15
6
0
0
7
10
3
3
2
5
32
39
34

High Clouds (% Sky Obscured)

20
7
7
27
16
99
100
57
60
66
5
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
8
9
6
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
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
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

47
37
46
40
10
9
23
53
52
38
27
10
3
0
0
0
0
0
1
2
19
32
25
30

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.4
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

16
14
12
12
14
11
8
7
7
7
7
7
7
7
6
5
5
5
4
4
5
6
6
5

Relative Humidity (%)

88
75
64
67
83
72
61
63
67
72
75
77
81
84
85
87
88
90
90
84
76
71
65
55

Pressure (mb)

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

Ozone (du)

369
370
370
369
371
372
372
372
372
373
376
378
380
388
397
404
408
410
412
410
405
403
402
402

Sunday 19

Waxing Crescent 6%

07:40

00:18

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

Sun - Rise: 06:36, Set: 20:44, Transit: 13:41. Moon - Rise: 07:40, Set: 00:18. Civil Dark: 21:20 - 06:00. Nautical Dark: 22:04 - 05:16. Astro Dark: 22:55 - 04:25

Total Clouds (% Sky Obscured)

77
66
72
63
40
43
91
25
40
39
40
60
59
63
73
89
90
91
80
68
44
40
49
65

Low Clouds (% Sky Obscured)

73
65
72
56
40
32
38
25
40
39
40
60
59
63
73
78
81
86
79
68
44
40
43
38

Medium Clouds (% Sky Obscured)

6
0
0
0
0
0
0
0
0
0
0
0
0
0
2
75
75
61
0
0
0
0
6
12

High Clouds (% Sky Obscured)

0
0
0
14
3
14
75
0
0
0
0
0
0
0
2
15
5
5
0
0
0
0
0
0

ISS Passover

Visibility (miles)

8
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 (%)

30
22
17
7
5
4
4
5
3
16
0
0
2
3
3
6
2
0
0
0
0
0
2
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
7
9
10
9
9
10
10
8
7
7
7
7
7
7
7
8
8
7
8
8
9
9
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

51
48
46
52
52
52
52
58
68
77
78
74
72
74
76
79
76
78
81
76
70
62
56
50

Pressure (mb)

1023
1023
1023
1023
1023
1023
1023
1023
1024
1024
1024
1024
1024
1024
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023

Ozone (du)

402
402
401
400
400
400
401
400
401
402
403
404
405
404
403
402
402
400
401
401
400
399
399
400

Monday 20

Waxing Crescent 14%

08:33

01:39

13 Bad
14 Bad
15 Bad
16 OK
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

Sun - Rise: 06:34, Set: 20:46, Transit: 13:41. Moon - Rise: 08:33, Set: 01:39. Civil Dark: 21:21 - 05:58. Nautical Dark: 22:06 - 05:13. Astro Dark: 22:57 - 04:22

Total Clouds (% Sky Obscured)

79
66
54
43
56
67
83
70
69
72
73
75
76
74
76
74
70
71
67
67
63
57
73
98

Low Clouds (% Sky Obscured)

34
35
29
29
20
18
13
36
62
72
73
75
76
74
76
70
68
71
67
67
60
57
66
84

Medium Clouds (% Sky Obscured)

14
10
6
0
5
10
15
13
14
12
26
41
45
40
36
32
33
25
17
16
10
4
20
33

High Clouds (% Sky Obscured)

0
0
0
0
2
3
5
3
2
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 (%)

1
0
0
0
0
0
0
6
9
10
8
7
5
9
10
11
9
6
4
4
3
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
9
9
9
10
10
11
11
10
9
8
8
8
8
8
7
8
8
9
10
11
11
12
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

46
41
39
38
38
40
46
53
58
63
68
78
85
87
88
90
90
93
91
85
78
70
62
56

Pressure (mb)

1022
1022
1021
1021
1021
1021
1021
1021
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1023
1023
1023
1023
1023

Ozone (du)

400
400
401
401
399
400
401
403
403
403
404
405
405
405
406
407
408
408
408
407
406
406
404
403

Tuesday 21

Waxing Crescent 23%

09:43

02:44

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

Sun - Rise: 06:32, Set: 20:48, Transit: 13:41. Moon - Rise: 09:43, Set: 02:44. Civil Dark: 21:23 - 05:56. Nautical Dark: 22:08 - 05:11. Astro Dark: 23:00 - 04:18

Total Clouds (% Sky Obscured)

99
97
90
56
47
46
35
37
39
41
25
13
0
0
0
0
0
0
0
0
0
0
0
0

Low Clouds (% Sky Obscured)

80
77
68
39
32
29
23
22
22
22
16
8
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

42
43
35
32
30
24
16
20
23
27
20
8
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
1
1
0
1
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

55
57
55
45
40
42
45
49
50
54
56
58
60
62
64
67
68
71
72
75
64
54
46
43

Pressure (mb)

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

Ozone (du)

405
405
405
405
407
407
406
406
407
407
404
402
398
396
393
391
388
386
384
382
383
384
385
386

Wednesday 22

Waxing Crescent 34%

11:05

03:28

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
04 Good
05 Good
06 Good
07 Good
08 Good
09 Good
10 Good
11 Good
12 OK

Sun - Rise: 06:30, Set: 20:49, Transit: 13:41. Moon - Rise: 11:05, Set: 03:28. Civil Dark: 21:25 - 05:54. Nautical Dark: 22:10 - 05:08. Astro Dark: 23:03 - 04:15

Total Clouds (% Sky Obscured)

0
0
1
1
2
2
2
3
3
2
3
3
3
2
1
0
0
0
0
0
0
0
15
27

Low Clouds (% Sky Obscured)

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

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
2
6

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

1
0
1
2
3
3
4
4
4
4
5
4
3
3
2
2
2
2
3
3
3
3
4
3

Relative Humidity (%)

40
37
39
40
40
45
49
53
59
64
70
69
69
69
71
75
78
78
78
78
69
60
55
49

Pressure (mb)

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

Ozone (du)

386
387
389
391
393
396
399
401
405
409
413
413
413
414
409
404
399
397
394
391
387
383
379
379

Thursday 23

Waxing Crescent 46%

12:30

03:59

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

Sun - Rise: 06:28, Set: 20:51, Transit: 13:40. Moon - Rise: 12:30, Set: 03:59. Civil Dark: 21:27 - 05:52. Nautical Dark: 22:12 - 05:06. Astro Dark: 23:05 - 04:12

Total Clouds (% Sky Obscured)

41
47
49
58
41
23
4
8
12
15
21
32
39
36
33
26
26
22
22

Low Clouds (% Sky Obscured)

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

Medium Clouds (% Sky Obscured)

12
13
17
21
14
8
0
1
3
5
3
2
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
1
3
4
5
9
4
8
12
15
21
32
39
36
33
26
26
22
22

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

45
41
40
40
39
44
49
54
59
64
69
72
74
75
77
78
79
78
77

Pressure (mb)

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

Ozone (du)

378
378
377
376
375
375
374
374
374
374
374
373
373
372
371
370
369
370
370

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

Generated: 17/04/26 13:01:16. Forecast: 17/04/26 to 23/04/26. Timezone: UTC+2.00