Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 27

Waning Gibbous 84%

00:50

07:42

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

Sun - Rise: 05:41, Set: 20:15, Transit: 12:59. Moon - Rise: 00:50, Set: 07:42. Civil Dark: 20:51 - 05:04. Nautical Dark: 21:37 - 04:18. Astro Dark: 22:32 - 03:23

Total Clouds (% Sky Obscured)

17
21
25
29
37
4
29
18
15
4
4
4
2
2
54
99
100
100
92
60
3
9
17
45

Low Clouds (% Sky Obscured)

0
6
22
17
16
3
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
22
22
0
0
0
0
0
0
0
0
0
0
40
41
65
93
65
3
0
0
0

High Clouds (% Sky Obscured)

0
3
3
4
0
0
1
3
3
3
3
3
2
2
53
98
100
81
55
7
1
9
17
55

ISS Passover

Visibility (miles)

-
-
-
-
-
-
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

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)

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

Chance of Frost

Temperature (°C)

17
18
19
20
20
19
19
18
15
13
12
10
10
9
8
8
7
7
7
8
10
12
14
16

Feels Like (°C)

15
16
17
17
16
17
17
16
13
12
11
9
9
8
7
7
5
5
5
6
7
11
13
15

Dew Point (°C)

3
2
1
1
1
2
8
9
9
8
8
7
7
7
7
7
7
6
6
7
7
7
8
8

Relative Humidity (%)

38
32
30
28
28
31
48
56
65
69
76
81
85
90
91
93
94
93
93
88
80
71
64
58

Pressure (mb)

1012
1012
1011
1011
1011
1011
1011
1011
1012
1013
1013
1013
1013
1013
1013
1014
1014
1014
1014
1014
1014
1014
1014
1014

Ozone (du)

435
429
426
426
426
428
425
422
422
422
422
418
413
411
407
406
407
407
409
410
411
412
409
406

Sunday 28

Waning Gibbous 75%

01:50

08:43

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

Sun - Rise: 05:39, Set: 20:17, Transit: 12:59. Moon - Rise: 01:50, Set: 08:43. Civil Dark: 20:53 - 05:02. Nautical Dark: 21:40 - 04:16. Astro Dark: 22:34 - 03:20

Total Clouds (% Sky Obscured)

50
45
13
48
65
70
61
48
15
12
21
34
80
95
99
91
89
86
62
64
8
12
11
17

Low 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
3

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
3
4
0
5
10
5
10
3
13
13
4
0
0
0
0
0

High Clouds (% Sky Obscured)

58
55
12
52
68
72
67
57
9
7
16
27
83
95
98
92
83
81
65
68
8
13
3
3

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)

8
7
8
8
9
9
9
9
7
5
4
4
5
5
4
3
3
3
3
2
3
5
7
7

Chance of Frost

Temperature (°C)

18
20
22
23
23
23
22
21
18
16
15
13
12
12
11
11
10
10
10
11
13
15
17
18

Feels Like (°C)

16
18
19
22
22
21
20
19
17
16
15
14
12
10
10
10
9
9
9
10
12
15
17
18

Dew Point (°C)

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

Relative Humidity (%)

52
46
43
40
40
42
52
62
71
77
82
86
90
92
92
93
93
91
91
87
78
72
66
63

Pressure (mb)

1014
1014
1013
1013
1013
1013
1013
1014
1014
1015
1016
1016
1017
1017
1018
1018
1019
1019
1020
1020
1021
1021
1021
1021

Ozone (du)

404
403
404
402
403
402
400
399
397
392
389
387
383
380
377
373
374
375
375
376
375
371
369
366

Monday 29

Waning Gibbous 64%

02:35

09:57

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

Sun - Rise: 05:37, Set: 20:18, Transit: 12:59. Moon - Rise: 02:35, Set: 09:57. Civil Dark: 20:55 - 05:00. Nautical Dark: 21:42 - 04:13. Astro Dark: 22:37 - 03:17

Total Clouds (% Sky Obscured)

58
50
91
100
100
100
100
100
100
34
6
20
2
2
17
15
47
70
70
70
70
70
65
65

Low Clouds (% Sky Obscured)

12
1
21
46
30
34
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
19
20
14
0
27
19
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

36
40
85
100
100
100
100
100
100
38
5
16
3
3
15
14
41
61
70
70
70
65
65
65

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
1
1
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)

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

Chance of Frost

Temperature (°C)

19
21
22
23
23
23
23
22
20
18
17
16
15
14
13
12
12
11
11
12
14
17
19
21

Feels Like (°C)

18
20
22
21
22
22
21
21
18
16
16
16
15
13
12
12
12
11
11
12
14
16
18
20

Dew Point (°C)

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

Relative Humidity (%)

59
57
54
52
50
56
56
62
70
73
78
82
84
84
83
84
86
86
84
80
70
62
55
50

Pressure (mb)

1020
1020
1020
1019
1019
1018
1018
1018
1018
1019
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1019
1019

Ozone (du)

365
365
363
362
360
362
363
363
362
363
365
364
363
363
362
362
363
363
361
360
361
362
362
364

Tuesday 30

Waning Gibbous 53%

03:08

11:21

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

Sun - Rise: 05:35, Set: 20:20, Transit: 12:59. Moon - Rise: 03:08, Set: 11:21. Civil Dark: 20:57 - 04:59. Nautical Dark: 21:44 - 04:11. Astro Dark: 22:40 - 03:14

Total Clouds (% Sky Obscured)

65
60
60
56
59
58
58
58
63
73
100
100
98
89
87
87
84
81
74
72
49
25
2
2

Low 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

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
0

High Clouds (% Sky Obscured)

70
70
65
66
67
67
62
67
67
79
100
100
98
90
88
85
82
78
64
67
45
23
2
2

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)

12
13
14
15
15
15
13
12
11
10
9
9
9
9
9
9
8
8
9
10
12
13
15
17

Chance of Frost

Temperature (°C)

23
24
25
25
25
24
23
22
20
19
17
16
16
15
14
13
13
12
13
13
14
16
18
20

Feels Like (°C)

21
21
21
21
21
22
21
19
18
16
14
12
12
11
10
10
9
9
9
10
10
13
15
16

Dew Point (°C)

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

Relative Humidity (%)

45
41
40
40
43
47
52
56
59
56
59
58
56
57
61
62
60
59
57
56
54
51
47
44

Pressure (mb)

1018
1018
1017
1017
1017
1016
1016
1016
1016
1016
1016
1016
1016
1016
1015
1015
1015
1015
1014
1014
1014
1014
1014
1013

Ozone (du)

365
367
369
371
371
370
369
370
371
373
372
370
369
368
368
368
367
366
367
367
366
365
363
363

Wednesday 1

Third Quarter 41%

03:33

No Set

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

Sun - Rise: 05:34, Set: 20:21, Transit: 12:58. Moon - Rise: 03:33, Set: No Set. Civil Dark: 20:58 - 04:57. Nautical Dark: 21:46 - 04:09. Astro Dark: 22:43 - 03:11

Total Clouds (% Sky Obscured)

3
1
1
4
4
29
6
7
6
7
32
7
17
21
27
24
27
34
36
44
11
7
1
6

Low 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
11

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
6
11
17
0
0
0
0

High Clouds (% Sky Obscured)

2
1
1
3
2
18
3
4
5
4
19
4
11
11
12
10
13
17
22
25
11
6
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 (%)

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)

18
19
19
19
18
18
17
15
13
11
11
11
10
9
9
9
9
8
9
10
11
11
13
14

Chance of Frost

Temperature (°C)

21
22
23
23
23
23
21
20
19
18
17
16
15
14
13
12
12
11
12
13
14
17
19
21

Feels Like (°C)

17
17
18
18
19
19
17
17
16
15
13
12
12
11
10
9
9
9
9
10
12
13
14
15

Dew Point (°C)

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

Relative Humidity (%)

41
40
41
42
46
51
54
58
59
57
57
55
57
62
65
72
77
80
84
80
71
61
52
45

Pressure (mb)

1012
1012
1011
1011
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1009
1009
1009
1010
1010
1011
1011
1011

Ozone (du)

363
362
361
360
360
360
359
357
355
352
351
351
351
353
352
351
350
348
349
349
350
351
351
352

Thursday 2

Waning Crescent 30%

03:51

12:47

12 Good
13 OK
14 Good
15 Good
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
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 05:32, Set: 20:23, Transit: 12:58. Moon - Rise: 03:51, Set: 12:47. Civil Dark: 21:00 - 04:55. Nautical Dark: 21:48 - 04:06. Astro Dark: 22:46 - 03:07

Total Clouds (% Sky Obscured)

11
14
13
11
13
39
67
96
92
89
70
73
88
100
92
84
74
77
81
85
85
85
82
85

Low Clouds (% Sky Obscured)

22
33
26
17
10
5
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
13

Medium Clouds (% Sky Obscured)

0
0
5
7
11
7
3
0
0
0
0
0
0
0
0
1
1
15
30
47
43
38
35
26

High Clouds (% Sky Obscured)

0
0
0
0
0
31
62
91
82
70
60
73
90
100
91
83
75
75
72
66
66
67
67
76

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
1
1
1
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)

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

Chance of Frost

Temperature (°C)

22
23
24
24
24
24
22
20
18
17
16
15
14
13
12
12
11
11
12
13
14
16
18
20

Feels Like (°C)

16
17
18
23
22
22
22
22
22
13
13
13
12
11
11
8
9
9
10
9
9
13
13
14

Dew Point (°C)

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

Relative Humidity (%)

41
38
36
38
39
40
44
49
52
55
57
60
64
69
72
73
75
76
73
71
68
64
59
56

Pressure (mb)

1010
1010
1010
1010
1009
1009
1009
1010
1010
1010
1011
1011
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012

Ozone (du)

352
351
351
351
351
351
351
351
351
350
350
349
349
349
349
348
347
346
346
346
346
346
346
345

Friday 3

Waning Crescent 19%

04:07

14:14

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

Sun - Rise: 05:30, Set: 20:25, Transit: 12:58. Moon - Rise: 04:07, Set: 14:14. Civil Dark: 21:02 - 04:53. Nautical Dark: 21:50 - 04:04. Astro Dark: 22:49 - 03:04

Total Clouds (% Sky Obscured)

92
98
90
82
74
74
74
69
69
74
76
72
73
72
57
39
21
19
18
18
23
24
25
35

Low Clouds (% Sky Obscured)

26
39
27
16
4
6
5
3
3
5
2
3
10
11
8
4
1
1
1
1
0
0
0
14

Medium Clouds (% Sky Obscured)

19
14
12
9
4
4
3
2
12
23
33
36
31
31
28
29
29
26
29
25
24
22
18
22

High Clouds (% Sky Obscured)

87
94
81
68
55
47
43
40
39
37
40
31
19
4
3
2
1
0
0
0
4
6
10
12

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 (%)

4
3
3
2
1
2
2
1
8
10
9
7
4
0
0
0
0
0
0
0
0
1
0
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)

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

Chance of Frost

Temperature (°C)

21
22
23
22
22
21
20
19
18
18
17
16
15
15
14
13
13
12
13
14
15
17
18
20

Feels Like (°C)

14
15
16
21
20
20
19
19
18
15
15
16
16
16
16
12
13
13
13
12
12
17
16
17

Dew Point (°C)

11
10
10
11
12
13
13
12
12
11
11
10
11
11
11
11
11
10
10
10
10
10
9
9

Relative Humidity (%)

52
48
45
49
54
59
62
63
65
66
67
69
74
78
82
83
87
89
81
76
72
63
54
48

Pressure (mb)

1012
1011
1011
1011
1011
1010
1011
1011
1011
1011
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1013
1012
1012
1012

Ozone (du)

345
344
344
344
345
345
345
345
345
346
346
347
348
349
349
350
351
351
353
354
355
355
354
354

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

Generated: 27/04/24 18:10:15. Forecast: 27/04/24 to 03/05/24. Timezone: UTC+2.00