Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 20

Waxing Crescent 8%

09:51

No Set

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
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad

Sun - Rise: 08:30, Set: 17:13, Transit: 12:52. Moon - Rise: 09:51, Set: No Set. Civil Dark: 17:50 - 07:53. Nautical Dark: 18:31 - 07:12. Astro Dark: 19:10 - 06:33

Total Clouds (% Sky Obscured)

71
66
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
98
96
99
87

Low Clouds (% Sky Obscured)

1
0
0
0
1
7
15
20
62
60
45
8
38
38
41
34
52
44
22
12
0
0
0
0

Medium Clouds (% Sky Obscured)

46
66
95
100
100
100
100
100
100
99
96
97
100
100
97
97
83
96
96
96
98
94
94
87

High Clouds (% Sky Obscured)

56
61
100
100
100
100
100
100
100
91
100
100
100
100
100
100
100
100
100
100
68
82
93
58

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
2
7
22
15
16
5
6
9
7
2
1
0
0
0
0
1
3
3
2
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
10
9
9
10
12
14
14
16
15
13
13
14
14
14
14
14
14
14
13
12
12
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
79
77
77
76
77
75
73
71
66
67
70
71
73
73
71
70
70
70
70
69
71
73
71

Pressure (mb)

1013
1012
1012
1011
1010
1010
1009
1008
1007
1006
1006
1005
1005
1005
1004
1004
1003
1002
1001
1000
1000
999
999
999

Ozone (du)

387
388
390
389
392
389
385
379
369
363
355
348
340
337
336
336
336
333
333
330
330
332
334
338

Wednesday 21

Waxing Crescent 15%

10:04

20:23

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

Sun - Rise: 08:29, Set: 17:15, Transit: 12:52. Moon - Rise: 10:04, Set: 20:23. Civil Dark: 17:52 - 07:52. Nautical Dark: 18:32 - 07:11. Astro Dark: 19:11 - 06:33

Total Clouds (% Sky Obscured)

61
84
58
10
26
33
76
60
27
17
52
47
55
96
100
65
99
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
25
39
48
38

Medium Clouds (% Sky Obscured)

61
84
58
10
25
5
50
35
27
17
52
47
55
74
74
60
64
63
71
80
72
90
98
97

High Clouds (% Sky Obscured)

30
32
25
10
26
30
59
60
27
17
52
47
52
94
100
65
98
90
100
100
100
88
91
90

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
14
7
1
0
0
0
0
1
2
8
8

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

70
69
61
58
60
61
64
66
65
66
72
76
77
77
78
76
79
79
74
76
77
78
81
81

Pressure (mb)

998
998
998
997
997
997
997
996
996
996
996
996
996
997
997
996
996
996
996
996
996
996
996
996

Ozone (du)

343
347
351
350
348
350
349
354
355
359
364
367
371
372
372
374
375
376
375
375
381
386
387
388

Thursday 22

Waxing Crescent 23%

10:16

21:41

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 OK
09 Bad
10 Bad
11 OK
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad

Sun - Rise: 08:27, Set: 17:17, Transit: 12:52. Moon - Rise: 10:16, Set: 21:41. Civil Dark: 17:53 - 07:51. Nautical Dark: 18:34 - 07:11. Astro Dark: 19:13 - 06:32

Total Clouds (% Sky Obscured)

100
100
99
96
100
99
96
59
49
50
56
45
46
52
45
37
77
67
57
50
67
83
100
100

Low Clouds (% Sky Obscured)

0
5
28
21
31
47
71
56
44
42
49
34
40
49
44
37
35
42
46
46
53
59
63
60

Medium Clouds (% Sky Obscured)

82
100
90
94
100
95
56
2
0
6
3
5
46
52
45
37
77
67
57
50
67
83
100
100

High Clouds (% Sky Obscured)

89
94
91
15
21
80
80
6
12
21
21
30
30
25
20
10
59
45
29
25
24
22
25
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
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 (%)

11
16
4
0
0
1
0
0
1
1
0
0
0
0
0
0
0
1
22
4
13
3
1
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
10
10
9
9
10
10
10
10
10
10
10
10
11
12
13
13
11
11
10
9
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
81
82
83
85
85
86
88
91
93
93
89
86
85
82
76
74
72
75
80
81
85
90
90

Pressure (mb)

996
996
996
996
996
996
995
995
995
995
995
995
995
995
995
995
995
995
995
995
995
995
995
995

Ozone (du)

389
388
391
393
391
388
375
367
367
366
366
366
365
365
367
369
370
370
371
371
372
375
377
379

Friday 23

Waxing Crescent 33%

10:29

23:00

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
14 Bad
15 Bad
16 Bad
17 Bad
18 OK
19 OK

Sun - Rise: 08:26, Set: 17:18, Transit: 12:52. Moon - Rise: 10:29, Set: 23:00. Civil Dark: 17:55 - 07:50. Nautical Dark: 18:35 - 07:10. Astro Dark: 19:14 - 06:31

Total Clouds (% Sky Obscured)

100
100
96
92
89
92
92
97
98
99
100
100
100
100
100
100
100
92
70
65
53
49
39
40

Low Clouds (% Sky Obscured)

59
55
53
46
41
33
25
17
22
26
30
30
31
31
26
21
16
22
27
34
39
45
39
40

Medium Clouds (% Sky Obscured)

96
83
96
92
89
92
33
32
47
99
100
100
100
100
100
100
100
61
50
50
40
18
0
0

High Clouds (% Sky Obscured)

57
73
36
21
30
21
13
5
9
9
13
13
14
14
30
47
63
70
70
65
49
26
1
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
1
1
1
10
11
7
13
13
9
7
4
1
1
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
7
7
6
7
6
6
5
5
5
5
5
5
4
5
4
5
4
4
4
5
5
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
90
88
86
89
89
91
93
91
89
86
86
88
85
82
76
71
67
64
63
69
78
83
86

Pressure (mb)

996
996
996
997
997
997
997
998
998
998
998
999
999
999
999
999
999
999
999
999
999
999
1000
1000

Ozone (du)

381
379
380
381
383
384
384
383
385
386
387
387
388
389
390
392
396
399
402
405
407
408
409
412

Saturday 24

Waxing Crescent 45%

10:43

00:21

20 OK
21 OK
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
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad

Sun - Rise: 08:25, Set: 17:20, Transit: 12:53. Moon - Rise: 10:43, Set: 00:21. Civil Dark: 17:56 - 07:49. Nautical Dark: 18:37 - 07:09. Astro Dark: 19:15 - 06:30

Total Clouds (% Sky Obscured)

37
37
52
51
60
65
76
91
96
99
92
68
83
98
96
95
94
83
72
61
75
84
95
91

Low Clouds (% Sky Obscured)

37
37
41
43
49
60
71
86
88
90
90
39
40
39
38
42
57
42
25
7
10
13
19
22

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
1
3
3
3
3
6
9
10
13
15
18
22
21
20
20
16
11
10

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
1
28
55
83
32
65
96
66
37
8
26
45
55
70
84
95
77

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
5
4
4
4
4
4
4
5
5
5
5
5
5
6
6
6
6
6
6
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
91
93
94
96
98
98
96
96
93
93
91
88
86
84
82
79
76
75
73
72
70
71
71

Pressure (mb)

1000
1000
1000
1001
1001
1001
1001
1001
1001
1001
1001
1001
1001
1001
1001
1001
1001
1001
1001
1001
1001
1001
1001
1001

Ozone (du)

412
414
415
416
418
419
421
423
423
423
423
423
423
424
425
425
425
426
427
429
431
430
429
428

Sunday 25

Waxing Crescent 56%

11:01

01:45

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
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad

Sun - Rise: 08:24, Set: 17:22, Transit: 12:53. Moon - Rise: 11:01, Set: 01:45. Civil Dark: 17:58 - 07:48. Nautical Dark: 18:38 - 07:08. Astro Dark: 19:17 - 06:29

Total Clouds (% Sky Obscured)

87
83
79
75
64
62
63
67
60
54
56
51
55
54
55
55
56
59
63
67
74
76
79
83

Low Clouds (% Sky Obscured)

22
22
20
20
21
22
23
24
29
38
48
51
55
54
55
55
52
48
47
47
52
61
71
70

Medium Clouds (% Sky Obscured)

8
6
7
12
12
19
26
33
25
18
6
5
5
5
5
15
15
18
21
19
14
10
7
35

High Clouds (% Sky Obscured)

55
33
53
73
64
62
63
67
60
54
56
38
18
0
2
3
4
3
2
0
6
11
14
25

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
1
2
3
3
2
0
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)

6
6
6
6
6
6
6
6
6
6
6
6
6
6
7
7
7
7
7
7
6
7
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-4
-4
-4
-4
-4
-4
-5
-5
-4
-5
-5
-5
-4
-4
-4
-4
-4
-4
-1
-1
-1
-1
0
1

Dew Point (°C)

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

Relative Humidity (%)

74
77
79
79
83
84
86
86
87
86
87
86
84
79
76
70
65
59
60
59
59
65
68
75

Pressure (mb)

1002
1002
1002
1002
1003
1003
1003
1003
1003
1003
1003
1003
1003
1003
1004
1003
1003
1003
1002
1002
1001
1001
1000
1000

Ozone (du)

428
428
428
426
424
422
419
416
413
411
410
408
404
400
396
392
387
383
384
385
386
386
386
386

Monday 26

First Quarter 68%

11:25

03:13

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 OK
10 Bad
11 Bad
12 Bad

Sun - Rise: 08:22, Set: 17:24, Transit: 12:53. Moon - Rise: 11:25, Set: 03:13. Civil Dark: 18:00 - 07:46. Nautical Dark: 18:40 - 07:06. Astro Dark: 19:18 - 06:28

Total Clouds (% Sky Obscured)

90
100
99
99
98
97
95
93
92
90
91
81
64
41
54
71
89

Low Clouds (% Sky Obscured)

70
65
59
67
61
72
81
87
87
88
87
81
64
41
54
71
68

Medium Clouds (% Sky Obscured)

67
95
95
94
90
75
61
40
36
47
53
38
20
2
23
45
67

High Clouds (% Sky Obscured)

37
50
45
45
50
75
90
93
90
85
80
54
25
0
13
18
23

ISS Passover

Visibility (miles)

9
9
9
9
9
9
6
3
0
3
6
9
9
9
9
9
9

Fog (%)

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

Precipitation Probability (%)

1
0
1
2
2
41
61
78
69
57
20
17
12
2
2
1
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

78
83
87
83
80
75
81
89
96
91
88
83
83
81
80
77
74

Pressure (mb)

999
999
998
997
996
995
995
994
994
994
994
994
995
995
996
996
996

Ozone (du)

392
398
404
408
412
417
418
420
421
428
434
441
436
432
428
429
431

Forecast for Boutersem, Flemish Brabant, Kingdom of Belgium (50.84,4.83)

Generated: 20/01/26 19:31:48. Forecast: 20/01/26 to 26/01/26. Timezone: UTC+1.00