Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 21

Waxing Crescent 8%

06:57

21:57

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

Sun - Rise: 05:58, Set: 18:16, Transit: 12:08. Moon - Rise: 06:57, Set: 21:57. Civil Dark: 18:49 - 05:26. Nautical Dark: 19:27 - 04:48. Astro Dark: 20:07 - 04:08

Total Clouds (% Sky Obscured)

100
96
98
88
63
51
49
32
22
4
4
0
0
2
0
0
7
13
28
40
31
32
52
79

Low Clouds (% Sky Obscured)

61
91
54
48
43
44
28
27
22
1
1
0
0
0
0
0
1
0
17
24
30
32
2
8

Medium Clouds (% Sky Obscured)

93
93
90
66
46
39
37
26
8
0
0
0
0
0
0
0
3
10
24
40
9
4
31
36

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
2
0
0
3
3
6
21
13
11
29
64

ISS Passover

Visibility (miles)

7
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 (%)

25
4
1
5
0
3
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
9
8
6
5
3
3
4
5
5
5
5
6
6
6
5
5
4
6
7
8
9
9
9

Chance of Frost

Temperature (°C)

8
8
9
9
8
7
6
5
5
4
4
3
3
2
2
2
1
2
4
6
8
10
11
12

Feels Like (°C)

4
5
6
7
5
6
6
4
4
3
2
1
1
1
0
-0
-0
0
2
4
6
8
9
8

Dew Point (°C)

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

Relative Humidity (%)

91
87
80
77
84
87
86
86
85
83
83
80
80
80
80
80
81
80
71
64
59
55
52
50

Pressure (mb)

1017
1017
1017
1017
1017
1018
1018
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1018
1017
1016

Ozone (du)

423
425
415
395
388
391
392
396
396
394
395
394
395
400
402
400
395
392
387
387
389
390
390
391

Sunday 22

Waxing Crescent 16%

07:26

23:26

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

Sun - Rise: 05:56, Set: 18:18, Transit: 12:08. Moon - Rise: 07:26, Set: 23:26. Civil Dark: 18:50 - 05:24. Nautical Dark: 19:29 - 04:45. Astro Dark: 20:08 - 04:05

Total Clouds (% Sky Obscured)

69
84
82
29
25
26
25
21
11
7
15
5
4
8
6
39
51
48
36
55
60
61
62
57

Low Clouds (% Sky Obscured)

69
31
23
5
2
2
2
2
2
2
2
2
2
2
2
1
1
2
2
2
2
1
1
1

Medium Clouds (% Sky Obscured)

46
64
57
29
25
26
25
21
8
4
15
0
0
4
2
18
50
39
25
49
60
60
62
57

High Clouds (% Sky Obscured)

19
44
58
2
0
0
0
2
1
0
0
0
0
0
0
10
24
23
16
27
28
25
32
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 (%)

1
0
2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

8
8
8
8
8
7
6
6
5
4
4
3
2
3
2
2
2
3
4
6
9
10
13
13

Dew Point (°C)

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

Relative Humidity (%)

49
47
48
53
61
64
66
69
71
74
76
79
79
80
82
83
83
80
71
63
57
52
50
47

Pressure (mb)

1016
1015
1015
1015
1015
1015
1015
1015
1016
1015
1015
1015
1015
1016
1016
1016
1016
1017
1017
1017
1017
1017
1017
1017

Ozone (du)

389
391
390
394
399
401
404
405
404
405
406
409
413
415
417
417
417
417
416
413
411
409
408
412

Monday 23

Waxing Crescent 26%

08:07

00:52

14 Bad
15 OK
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
13 Bad

Sun - Rise: 05:54, Set: 18:19, Transit: 12:08. Moon - Rise: 08:07, Set: 00:52. Civil Dark: 18:52 - 05:22. Nautical Dark: 19:30 - 04:43. Astro Dark: 20:10 - 04:03

Total Clouds (% Sky Obscured)

51
31
45
78
73
81
54
71
72
69
61
63
63
68
74
62
58
71
84
97
98
99
100
97

Low Clouds (% Sky Obscured)

2
2
1
2
32
35
16
2
2
1
0
0
0
0
0
3
3
2
2
2
2
0
2
3

Medium Clouds (% Sky Obscured)

51
31
45
35
28
37
28
21
31
60
33
34
60
68
74
56
29
51
54
59
76
90
100
85

High Clouds (% Sky Obscured)

17
3
20
78
47
7
15
71
72
69
61
63
63
68
74
62
58
70
80
93
94
96
100
88

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)

3
4
4
4
4
4
5
5
4
4
3
3
3
3
3
3
3
3
3
3
4
4
4
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

13
12
12
12
9
8
6
7
5
4
3
4
3
2
2
2
1
2
4
6
8
9
10
11

Dew Point (°C)

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

Relative Humidity (%)

45
43
42
46
53
54
56
63
68
69
70
71
72
71
72
72
72
72
66
60
57
53
49
46

Pressure (mb)

1017
1017
1017
1017
1018
1019
1020
1020
1021
1021
1021
1021
1021
1022
1022
1022
1022
1023
1023
1023
1023
1022
1021
1021

Ozone (du)

415
420
414
403
411
422
419
415
411
406
401
395
390
385
379
379
377
376
374
369
366
364
364
363

Tuesday 24

Waxing Crescent 37%

09:04

02:06

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

Sun - Rise: 05:52, Set: 18:21, Transit: 12:07. Moon - Rise: 09:04, Set: 02:06. Civil Dark: 18:53 - 05:19. Nautical Dark: 19:32 - 04:41. Astro Dark: 20:12 - 04:00

Total Clouds (% Sky Obscured)

93
86
68
53
50
50
50
45
45
40
40
33
32
36
42
47
56
58
61
61
72
86
100
100

Low Clouds (% Sky Obscured)

6
6
5
5
10
4
27
11
5
2
2
2
1
2
1
2
35
22
16
35
36
37
33
33

Medium Clouds (% Sky Obscured)

68
43
40
27
8
19
50
40
30
20
15
15
15
2
19
15
15
15
10
10
5
5
10
20

High Clouds (% Sky Obscured)

71
61
36
25
32
45
45
45
40
40
40
7
13
36
42
47
46
50
53
44
62
74
90
100

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
7
4

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
Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
13
7
13
25
16
51
79
59

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
0.6
0.4

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

11
11
11
12
10
8
6
6
5
4
3
2
2
2
1
1
1
1
2
4
5
6
7
7

Dew Point (°C)

2
2
2
3
4
3
3
2
2
2
2
1
1
1
1
1
1
1
2
4
6
7
9
10

Relative Humidity (%)

43
43
42
48
56
59
61
61
61
64
68
69
67
70
71
70
72
71
70
70
68
67
77
84

Pressure (mb)

1020
1019
1019
1018
1018
1018
1018
1017
1017
1016
1016
1015
1014
1013
1013
1012
1011
1010
1010
1008
1007
1006
1005
1004

Ozone (du)

362
360
358
358
355
355
356
357
360
363
367
368
370
369
371
374
378
382
385
386
385
391
398
407

Wednesday 25

First Quarter 49%

10:16

03:02

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

Sun - Rise: 05:50, Set: 18:23, Transit: 12:07. Moon - Rise: 10:16, Set: 03:02. Civil Dark: 18:55 - 05:17. Nautical Dark: 19:34 - 04:38. Astro Dark: 20:14 - 03:58

Total Clouds (% Sky Obscured)

100
100
100
100
100
59
50
73
47
44
42
50
55
64
74
86
99
95
91
86
91
96
100
100

Low Clouds (% Sky Obscured)

28
46
14
45
28
8
2
3
3
2
3
24
42
58
68
82
95
87
80
75
81
88
94
92

Medium Clouds (% Sky Obscured)

20
3
26
34
48
15
23
54
37
40
42
50
55
64
67
70
73
64
54
47
43
34
20
35

High Clouds (% Sky Obscured)

85
85
85
85
85
59
50
73
47
24
0
17
30
50
62
68
74
77
81
86
91
95
81
54

ISS Passover

Visibility (miles)

9
4
9
7
9
9
9
9
9
9
9
9
7
4
2
4
7
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
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
Snow
None
None
None
None
None
Very Light Rain
Very Light Rain

Precipitation Probability (%)

47
52
36
78
7
0
0
0
1
1
1
15
23
26
35
40
46
44
40
34
41
51
59
55

Precipitation Amount (mm)

0
0
0
0.8
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0
0
0
0
0
0.3
0.2

Wind Speed/Direction (mph)

10
14
9
10
8
7
6
6
7
9
9
9
9
10
11
11
11
11
11
11
11
10
10
11

Chance of Frost

Temperature (°C)

13
13
12
12
10
8
7
6
5
4
3
3
2
2
1
2
2
2
3
4
5
6
6
7

Feels Like (°C)

8
7
8
7
5
3
5
3
1
0
1
0
-1
-1
-1
-2
-2
-3
-2
-2
-2
-2
-1
-1

Dew Point (°C)

10
9
7
6
6
4
4
2
1
-0
-1
-1
-1
-1
-0
-1
-2
-2
-2
-3
-3
-3
-3
-3

Relative Humidity (%)

83
75
71
68
77
75
82
79
78
73
76
79
81
86
89
84
80
76
68
61
55
53
51
49

Pressure (mb)

1004
1004
1003
1003
1004
1004
1005
1005
1005
1005
1006
1006
1006
1007
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008

Ozone (du)

415
423
426
428
428
430
430
433
438
440
438
438
440
443
445
449
454
459
457
456
454
451
448
445

Thursday 26

Waxing Gibbous 61%

11:38

03:42

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
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad

Sun - Rise: 05:48, Set: 18:24, Transit: 12:07. Moon - Rise: 11:38, Set: 03:42. Civil Dark: 18:57 - 05:15. Nautical Dark: 19:35 - 04:36. Astro Dark: 20:16 - 03:55

Total Clouds (% Sky Obscured)

100
99
100
100
100
86
75
62
64
62
61
61
67
58
68
81
97
98
98
99
99
100
100
100

Low Clouds (% Sky Obscured)

92
90
87
83
78
73
65
60
64
62
61
57
55
53
55
59
65
74
79
82
87
92
96
89

Medium Clouds (% Sky Obscured)

49
65
74
85
95
72
49
28
25
21
14
16
13
15
15
15
15
38
51
64
64
66
65
57

High Clouds (% Sky Obscured)

28
1
20
39
58
69
75
62
64
62
61
61
67
58
68
81
96
69
44
23
39
59
66
56

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
7
6
4
2

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
Snow
Snow
None
None
None
None

Precipitation Probability (%)

50
47
43
35
27
25
22
16
11
9
1
6
6
1
10
13
13
30
40
45
42
40
38
40

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.1
0.1
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

50
50
51
57
61
68
69
69
72
72
72
73
73
73
74
73
70
68
72
76
79
80
82
82

Pressure (mb)

1008
1008
1008
1008
1009
1009
1010
1010
1010
1011
1011
1011
1011
1012
1012
1012
1012
1013
1013
1014
1014
1014
1014
1015

Ozone (du)

447
449
451
452
452
453
454
454
454
456
458
460
459
458
457
454
451
448
445
442
439
436
434
432

Friday 27

Waxing Gibbous 72%

13:02

04:10

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
04 Bad
05 Bad
06 Bad

Sun - Rise: 05:45, Set: 18:26, Transit: 12:06. Moon - Rise: 13:02, Set: 04:10. Civil Dark: 18:58 - 05:13. Nautical Dark: 19:37 - 04:34. Astro Dark: 20:18 - 03:53

Total Clouds (% Sky Obscured)

100
100
100
100
100
99
99
98
96
93
91
93
95
98
75
59
41

Low Clouds (% Sky Obscured)

84
84
82
80
77
77
78
75
67
56
44
48
47
45
40
37
29

Medium Clouds (% Sky Obscured)

51
57
58
53
54
57
61
55
46
37
28
27
25
26
22
18
14

High Clouds (% Sky Obscured)

50
18
39
67
100
75
51
26
51
75
91
83
67
52
39
25
7

ISS Passover

Visibility (miles)

5
7
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

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

40
38
29
26
32
23
20
19
29
35
36
26
18
9
8
8
1

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

1
1
1
1
1
1
0
-1
0
0
-1
-1
-1
-1
-1
-1
-1

Dew Point (°C)

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

Relative Humidity (%)

82
82
81
82
83
86
85
86
88
88
88
88
88
88
88
86
88

Pressure (mb)

1015
1015
1015
1016
1016
1017
1018
1018
1019
1019
1019
1019
1020
1020
1020
1021
1021

Ozone (du)

428
425
421
421
421
421
421
421
422
423
424
426
424
423
421
420
419

Forecast for Letňany, Praha 18, Czech Republic (50.14,14.52)

Generated: 21/03/26 14:29:02. Forecast: 21/03/26 to 27/03/26. Timezone: UTC+1.00