Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 20

Waxing Crescent 3%

09:35

19:05

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

Sun - Rise: 08:30, Set: 17:12, Transit: 12:51. Moon - Rise: 09:35, Set: 19:05. Civil Dark: 17:49 - 07:53. Nautical Dark: 18:29 - 07:13. Astro Dark: 19:08 - 06:34

Total Clouds (% Sky Obscured)

80
83
76
74
74
74
74
77
76
76
76
76
12
87
76
37
32
80
62
70
77
82
100
100

Low Clouds (% Sky Obscured)

0
5
0
0
0
16
28
28
23
26
17
42
0
41
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

45
46
29
19
13
5
2
2
2
0
0
0
0
0
0
0
0
61
13
21
37
63
62
99

High Clouds (% Sky Obscured)

2
3
2
2
12
12
10
27
15
15
3
3
17
14
13
14
44
98
62
70
77
69
100
100

ISS Passover

Visibility (miles)

-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
9
9
9
9
9
9

Fog (%)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
98
97
97
97
94
98
100
88
95
94
94
82
73
68
67
70
77
86
86
80
79
79
79

Pressure (mb)

1019
1019
1019
1019
1018
1018
1018
1018
1018
1017
1017
1017
1017
1017
1016
1015
1015
1014
1014
1014
1013
1013
1012
1012

Ozone (du)

365
366
366
366
366
366
366
367
366
368
370
373
375
375
375
373
375
377
380
382
386
386
388
388

Wednesday 21

Waxing Crescent 8%

09:51

20:23

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
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 08:29, Set: 17:13, Transit: 12:51. Moon - Rise: 09:51, Set: 20:23. Civil Dark: 17:50 - 07:53. Nautical Dark: 18:31 - 07:12. Astro Dark: 19:10 - 06:33

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
97
100
95
69
76
61
58

Low Clouds (% Sky Obscured)

0
0
7
20
52
48
52
0
32
38
31
38
60
44
33
7
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
93
100
99
100
99
98
83
96
95
99
99
93
92
79
69
76
44
28

High Clouds (% Sky Obscured)

100
100
100
100
100
90
100
100
100
100
100
100
100
100
100
91
81
85
99
86
24
42
47
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
3
9
8
12
4
3
4
4
1
0
0
0
0
0
2
6
6
5
1
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
9
11
12
14
15
14
13
13
14
14
15
14
14
13
13
12
12
11
12
12
13
13
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
76
75
69
69
66
63
66
70
72
71
71
69
68
69
68
69
73
73
70
70
65
59
57

Pressure (mb)

1011
1010
1009
1009
1008
1007
1006
1006
1005
1005
1004
1004
1003
1002
1001
1001
1000
1000
999
999
999
998
998
998

Ozone (du)

390
391
389
384
376
367
361
355
347
341
338
338
336
334
335
332
330
331
334
335
340
344
348
348

Thursday 22

Waxing Crescent 15%

10:04

21:41

00 OK
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 OK
09 OK
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

Sun - Rise: 08:28, Set: 17:15, Transit: 12:52. Moon - Rise: 10:04, Set: 21:41. Civil Dark: 17:52 - 07:52. Nautical Dark: 18:32 - 07:11. Astro Dark: 19:11 - 06:32

Total Clouds (% Sky Obscured)

38
56
86
76
63
58
52
53
30
39
40
64
70
100
100
99
100
100
100
100
100
100
100
97

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
10
40
56
52
5
10
27
19

Medium Clouds (% Sky Obscured)

13
2
43
72
63
55
48
53
30
39
40
64
70
64
81
87
67
70
78
94
97
100
100
96

High Clouds (% Sky Obscured)

38
53
64
48
31
37
47
53
16
23
21
21
25
100
100
97
95
75
91
94
93
100
93
8

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
3
14
2
0
0
0
0
0
5
9
14
12
19
5
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

59
62
66
67
66
67
72
76
77
77
75
76
78
78
76
76
77
78
81
85
85
82
82
83

Pressure (mb)

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

Ozone (du)

346
347
345
349
353
356
361
364
367
370
369
371
371
374
374
374
377
383
387
388
389
387
390
392

Friday 23

Waxing Crescent 23%

10:16

23:00

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

Sun - Rise: 08:27, Set: 17:17, Transit: 12:52. Moon - Rise: 10:16, Set: 23:00. Civil Dark: 17:53 - 07:50. Nautical Dark: 18:34 - 07:10. Astro Dark: 19:12 - 06:31

Total Clouds (% Sky Obscured)

100
100
100
77
48
37
36
25
49
60
37
33
62
68
73
78
80
82
84
89
94
99
97
95

Low Clouds (% Sky Obscured)

26
43
72
62
46
29
26
16
43
57
34
32
27
34
36
39
44
57
63
58
58
48
57
58

Medium Clouds (% Sky Obscured)

100
100
64
3
0
4
5
3
49
60
37
33
62
68
73
75
79
81
84
89
92
99
97
95

High Clouds (% Sky Obscured)

11
76
75
24
9
19
19
25
30
30
30
20
51
52
59
66
52
39
30
31
31
32
8
23

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
0
0
11
2
0
0
0
0
0
0
0
1
19
7
3
3
11
0
1
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
0
0

Wind Speed/Direction (mph)

9
10
10
11
10
11
11
9
9
9
10
11
13
13
11
10
10
9
8
7
8
7
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
85
86
86
88
91
91
91
86
85
82
76
73
70
73
77
80
85
87
88
86
90
86
83

Pressure (mb)

996
996
996
996
995
995
995
995
995
995
995
995
995
995
995
995
995
995
995
995
996
996
997
997

Ozone (du)

393
392
383
370
368
367
366
366
364
365
367
368
369
369
369
370
370
373
375
378
379
379
378
380

Saturday 24

Waxing Crescent 33%

10:29

No Set

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
20 OK
21 OK
22 OK
23 Bad

Sun - Rise: 08:26, Set: 17:18, Transit: 12:52. Moon - Rise: 10:29, Set: No Set. Civil Dark: 17:55 - 07:49. Nautical Dark: 18:35 - 07:09. Astro Dark: 19:14 - 06:30

Total Clouds (% Sky Obscured)

93
91
88
85
90
95
100
100
100
100
100
100
100
100
71
61
52
51
36
37
34
35
43
45

Low Clouds (% Sky Obscured)

65
54
49
47
41
35
29
30
31
33
32
31
30
37
43
50
52
51
36
37
34
35
43
45

Medium Clouds (% Sky Obscured)

93
87
32
23
39
95
100
100
100
100
100
100
100
82
40
45
30
17
0
0
0
0
0
0

High Clouds (% Sky Obscured)

30
20
15
10
10
11
17
22
28
34
25
15
5
36
67
61
52
32
1
0
0
1
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
3
3
2
16
20
16
22
22
17
15
9
3
4
2
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
90
89
89
89
88
85
86
86
83
80
76
70
66
65
63
67
76
85
88
93
94
96
96

Pressure (mb)

997
997
998
998
998
998
998
999
999
999
999
999
999
1000
999
999
999
999
1000
1000
1000
1000
1001
1001

Ozone (du)

381
383
382
382
383
385
386
386
387
388
389
391
394
397
400
403
405
406
408
411
411
413
415
415

Sunday 25

Waxing Crescent 45%

10:43

00:21

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
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 08:25, Set: 17:20, Transit: 12:52. Moon - Rise: 10:43, Set: 00:21. Civil Dark: 17:56 - 07:48. Nautical Dark: 18:36 - 07:08. Astro Dark: 19:15 - 06:29

Total Clouds (% Sky Obscured)

54
65
78
94
97
99
96
69
84
98
95
92
89
79
68
57
64
75
86
82
80
76
75
63

Low Clouds (% Sky Obscured)

50
65
78
94
92
92
92
36
39
42
46
46
53
45
34
22
19
16
14
19
23
28
22
16

Medium Clouds (% Sky Obscured)

2
3
3
3
3
47
32
30
32
21
17
16
12
9
13
17
22
22
18
18
18
18
12
10

High Clouds (% Sky Obscured)

0
0
0
0
23
46
69
33
67
98
67
35
2
28
55
57
64
75
86
82
71
64
75
63

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
96
94
93
91
88
88
88
86
83
81
80
77
75
72
71
68
69
69
70
74
77
79
83

Pressure (mb)

1001
1001
1001
1001
1001
1001
1001
1001
1001
1001
1001
1001
1001
1001
1001
1001
1001
1001
1001
1001
1002
1002
1002
1002

Ozone (du)

417
418
419
423
423
421
421
423
423
424
424
425
426
427
428
429
431
430
430
429
428
428
427
425

Monday 26

First Quarter 56%

11:01

01:45

00 Bad
01 Bad
02 OK
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
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 08:23, Set: 17:22, Transit: 12:53. Moon - Rise: 11:01, Set: 01:45. Civil Dark: 17:58 - 07:47. Nautical Dark: 18:38 - 07:07. Astro Dark: 19:17 - 06:28

Total Clouds (% Sky Obscured)

58
53
48
40
50
62
65
60
59
59
60
61
62
60
67
65
71
67
69
76
87
99
99
98

Low Clouds (% Sky Obscured)

12
13
14
19
29
38
43
43
57
59
60
61
52
51
50
48
49
54
69
73
72
72
71
70

Medium Clouds (% Sky Obscured)

12
14
16
17
15
8
6
6
5
5
10
15
15
18
17
15
7
7
6
35
67
95
95
93

High Clouds (% Sky Obscured)

58
53
48
40
43
29
18
13
7
1
3
5
6
5
2
0
3
4
5
20
35
50
40
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 (%)

0
0
0
0
0
0
0
0
0
0
1
0
0
1
1
1
2
2
0
1
1
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
84
86
87
89
87
89
87
84
79
78
70
65
60
60
60
59
65
68
75
78
81
84
81

Pressure (mb)

1003
1003
1003
1003
1003
1003
1003
1003
1003
1004
1004
1003
1003
1003
1002
1002
1001
1001
1000
1000
999
999
998
997

Ozone (du)

423
421
419
416
413
412
410
408
404
400
396
391
386
381
383
384
386
387
388
389
392
395
398
403

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

Generated: 20/01/26 18:56:52. Forecast: 20/01/26 to 26/01/26. Timezone: UTC+1.00