Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 18

Waxing Crescent 11%

06:38

23:37

18 Bad
19 Bad
20 Bad
21 OK
22 OK
23 OK
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

Sun - Rise: 05:02, Set: 20:41, Transit: 12:52. Moon - Rise: 06:38, Set: 23:37. Civil Dark: 21:22 - 04:21. Nautical Dark: 22:17 - 03:25. Astro Dark: 23:39 - 02:01

Total Clouds (% Sky Obscured)

77
61
56
19
23
26
43
53
54
75
83
88
62
59
50
66
67
57
55
54
55
57
63
78

Low Clouds (% Sky Obscured)

30
32
11
1
0
5
22
31
31
33
27
27
1
29
40
36
31
25
31
35
33
56
62
56

Medium Clouds (% Sky Obscured)

36
39
20
17
23
26
43
48
33
22
30
53
42
44
41
58
59
47
51
44
44
38
47
78

High Clouds (% Sky Obscured)

3
5
5
6
3
3
3
3
12
52
75
83
55
26
3
4
4
3
0
0
3
13
7
36

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
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 (%)

17
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
24
37
40
42
38
51
45
66

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
3
3
2
2
2
2
2
2
2
2
2
3
4
4
4
4
4
4
3

Chance of Frost

Temperature (°C)

14
14
12
9
8
7
6
6
6
6
5
5
6
9
11
13
14
15
16
17
18
18
18
17

Feels Like (°C)

13
13
11
9
8
7
7
7
6
6
4
4
5
8
11
14
14
15
16
17
17
17
16
16

Dew Point (°C)

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

Relative Humidity (%)

71
76
83
88
88
90
88
88
88
90
90
90
88
81
73
68
62
60
59
54
51
51
50
51

Pressure (mb)

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

Ozone (du)

383
381
381
381
380
380
381
381
381
380
381
381
379
379
378
377
376
377
380
383
387
389
382
377

Tuesday 19

Waxing Crescent 20%

07:58

00:32

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
14 Bad
15 Bad
16 Bad
17 Bad

Sun - Rise: 05:00, Set: 20:43, Transit: 12:52. Moon - Rise: 07:58, Set: 00:32. Civil Dark: 21:24 - 04:19. Nautical Dark: 22:20 - 03:23. Astro Dark: 23:44 - 01:56

Total Clouds (% Sky Obscured)

60
37
55
57
66
92
92
91
87
95
95
87
78
72
94
96
99
100
96
99
91
100
83
90

Low Clouds (% Sky Obscured)

44
37
1
1
37
42
65
60
64
65
61
54
60
53
63
62
45
44
37
32
30
52
47
43

Medium Clouds (% Sky Obscured)

52
0
55
57
64
71
68
57
66
87
87
72
51
34
47
66
68
73
83
74
76
89
52
61

High Clouds (% Sky Obscured)

2
0
6
30
3
64
59
40
6
15
40
12
4
42
31
31
57
100
59
55
48
30
3
2

ISS Passover

Visibility (miles)

9
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
5
8
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

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

Precipitation Probability (%)

68
45
16
26
15
33
26
8
5
0
0
0
0
1
19
29
41
55
38
29
26
16
28
41

Precipitation Amount (mm)

0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0
0
0
0
0
0

Wind Speed/Direction (mph)

3
3
3
3
3
3
2
2
2
2
2
2
2
2
2
3
5
6
8
8
9
8
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

55
70
76
81
84
87
88
87
88
90
90
91
93
90
89
86
80
73
68
60
58
56
53
63

Pressure (mb)

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

Ozone (du)

373
370
365
366
364
362
360
361
361
361
361
362
363
360
358
357
356
357
357
356
356
356
356
360

Wednesday 20

Waxing Crescent 31%

09:25

01:10

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

Sun - Rise: 04:59, Set: 20:44, Transit: 12:52. Moon - Rise: 09:25, Set: 01:10. Civil Dark: 21:25 - 04:18. Nautical Dark: 22:22 - 03:21. Astro Dark: 23:48 - 01:52

Total Clouds (% Sky Obscured)

63
51
49
64
73
90
68
51
52
44
48
37
18
10
47
57
72
74
86
76
93
91
89
80

Low Clouds (% Sky Obscured)

9
12
13
17
38
51
54
49
42
43
46
37
15
10
47
39
52
54
71
64
84
83
81
27

Medium Clouds (% Sky Obscured)

49
35
34
50
59
78
64
51
43
35
15
7
13
4
46
57
50
70
40
35
33
20
8
7

High Clouds (% Sky Obscured)

1
1
2
3
2
2
0
0
0
0
0
0
0
0
0
4
8
4
40
15
48
55
25
30

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

50
40
11
0
0
0
0
0
0
0
0
0
0
0
0
23
55
63
64
54
38
20
20
7

Precipitation Amount (mm)

0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.5
0.4
0.3
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

16
16
14
13
12
11
11
10
9
9
8
8
8
10
13
15
16
17
18
18
19
19
19
19

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

69
79
83
87
87
88
90
91
91
91
93
93
95
90
86
80
73
70
66
64
59
56
58
65

Pressure (mb)

1022
1023
1023
1024
1024
1025
1025
1025
1025
1026
1026
1026
1027
1027
1027
1027
1027
1027
1026
1026
1026
1026
1025
1025

Ozone (du)

361
361
361
362
364
366
366
362
362
360
358
357
359
362
364
360
359
357
356
356
355
354
354
352

Thursday 21

Waxing Crescent 28%

10:51

01:36

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

Sun - Rise: 04:58, Set: 20:45, Transit: 12:52. Moon - Rise: 10:51, Set: 01:36. Civil Dark: 21:27 - 04:16. Nautical Dark: 22:24 - 03:19. Astro Dark: 23:53 - 01:47

Total Clouds (% Sky Obscured)

70
60
48
16
21
20
22
24
24
23
23
39
44
31
24
53
78
77
73
69
63
75
73
80

Low Clouds (% Sky Obscured)

11
0
0
1
2
8
13
20
22
23
23
28
24
12
19
43
65
63
58
54
40
27
17
7

Medium Clouds (% Sky Obscured)

2
0
1
4
2
2
0
4
4
5
5
5
4
0
3
7
10
21
36
50
49
47
44
29

High Clouds (% Sky Obscured)

30
30
24
15
21
15
8
2
2
1
1
2
2
2
2
2
2
1
1
1
1
10
10
39

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
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 (%)

7
1
0
0
0
0
0
0
0
0
0
0
0
1
19
32
34
42
33
28
8
7
4
4

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
5
4
4
4
3
4
3
3
3
3
3
2
1
2
3
3
3
3
4
5
7
7
8

Chance of Frost

Temperature (°C)

19
18
16
14
12
11
10
10
9
9
9
8
10
13
15
16
18
19
20
21
21
21
21
21

Feels Like (°C)

17
16
15
13
13
11
11
10
10
9
10
9
11
14
16
17
18
18
20
20
21
20
19
19

Dew Point (°C)

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

Relative Humidity (%)

61
68
78
86
89
88
91
90
90
91
91
91
90
84
79
74
74
75
68
57
51
51
52
57

Pressure (mb)

1026
1026
1026
1027
1028
1028
1028
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1028
1028
1028
1027
1027
1027

Ozone (du)

349
348
345
341
340
339
338
339
340
340
339
339
339
339
339
338
333
331
333
334
334
336
337
338

Friday 22

Waxing Crescent 42%

12:13

01:54

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

Sun - Rise: 04:57, Set: 20:47, Transit: 12:52. Moon - Rise: 12:13, Set: 01:54. Civil Dark: 21:28 - 04:15. Nautical Dark: 22:26 - 03:17. Astro Dark: 23:58 - 01:41

Total Clouds (% Sky Obscured)

89
99
83
67
56
59
65
68
46
66
50
32
14
14
29
40
51
56
62
69
51
34
17
25

Low Clouds (% Sky Obscured)

1
1
0
0
0
7
12
18
21
24
28
20
10
0
15
31
47
48
49
51
36
22
7
5

Medium Clouds (% Sky Obscured)

15
1
5
7
3
1
2
3
3
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

69
98
72
52
29
22
13
20
16
21
14
8
2
8
1
1
1
2
21
34
32
20
10
21

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 (%)

5
1
0
0
0
0
0
0
0
0
0
0
0
0
6
7
2
7
7
8
8
5
0
6

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
5
4
4
4
4
4
4
4
4
4
3
3
2
3
3
4
5
6
7
8
8
8

Chance of Frost

Temperature (°C)

20
19
17
16
14
13
12
12
11
11
10
10
12
14
16
17
18
20
20
21
22
22
22
22

Feels Like (°C)

18
17
16
15
13
11
11
10
10
10
9
9
12
16
18
18
18
19
19
20
20
22
22
21

Dew Point (°C)

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

Relative Humidity (%)

60
65
72
74
76
81
87
87
88
90
90
91
88
82
75
70
64
59
58
55
52
53
56
58

Pressure (mb)

1027
1027
1027
1028
1028
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1028
1028
1028
1028
1027
1027
1027
1026
1026

Ozone (du)

339
338
338
337
336
337
338
338
339
339
338
337
336
335
336
334
332
330
329
329
328
328
327
327

Saturday 23

First Quarter 53%

13:30

02:09

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

Sun - Rise: 04:56, Set: 20:48, Transit: 12:52. Moon - Rise: 13:30, Set: 02:09. Civil Dark: 21:30 - 04:14. Nautical Dark: 22:28 - 03:15. Astro Dark: 00:04 - 01:35

Total Clouds (% Sky Obscured)

32
38
31
25
21
35
52
63
58
57
54
38
23
7
21
37
56
68
80
92
87
79
72
55

Low Clouds (% Sky Obscured)

2
0
0
0
0
8
16
24
23
23
20
14
7
1
3
5
8
8
9
9
9
8
7
4

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
1
1
0
0
0
0
0

High Clouds (% Sky Obscured)

28
19
8
2
2
3
0
5
4
4
14
10
5
1
8
17
25
37
64
92
71
50
29
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 (%)

5
0
6
7
0
0
0
0
0
0
0
1
2
2
23
33
40
40
39
41
28
17
4
5

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
6
5
4
3
3
3
3
3
2
2
2
2
2
2
2
3
3
4
6
7
7
8
8

Chance of Frost

Temperature (°C)

20
19
18
16
15
13
12
12
11
11
11
11
13
15
17
18
19
21
22
23
24
24
24
23

Feels Like (°C)

21
22
22
16
16
16
15
14
13
11
11
11
11
12
12
20
20
20
20
21
21
25
24
23

Dew Point (°C)

13
14
15
14
13
11
11
10
10
10
10
9
11
12
13
14
15
16
15
14
13
13
13
13

Relative Humidity (%)

65
73
82
86
89
90
90
92
92
91
91
91
89
83
81
78
75
73
64
56
51
50
51
53

Pressure (mb)

1026
1026
1026
1026
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1026
1026
1026
1026
1025

Ozone (du)

326
325
324
326
328
330
331
333
334
335
336
336
336
335
334
332
330
328
327
326
325
325
325
325

Sunday 24

Waxing Gibbous 64%

14:44

02:22

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 OK
07 Bad
08 OK
09 OK
10 OK
11 OK
12 OK
13 OK

Sun - Rise: 04:55, Set: 20:49, Transit: 12:53. Moon - Rise: 14:44, Set: 02:22. Civil Dark: 21:31 - 04:13. Nautical Dark: 22:30 - 03:13. Astro Dark: 00:09 - 01:29

Total Clouds (% Sky Obscured)

39
24
23
21
16
15
13
13
14
14
15
25
37
51
47
42
36
33
29
19

Low Clouds (% Sky Obscured)

2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
8
16
19

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

18
12
9
6
3
7
11
13
14
14
15
21
27
33
29
25
19
19
20
19

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

3
0
0
0
0
1
0
0
2
1
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

22
20
19
17
15
13
12
11
11
10
10
10
12
14
16
18
19
21
22
23

Feels Like (°C)

23
23
23
16
16
16
15
14
13
10
10
11
11
11
11
17
17
17
18
19

Dew Point (°C)

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

Relative Humidity (%)

58
63
69
71
74
79
80
84
85
87
87
88
80
71
66
59
53
48
48
49

Pressure (mb)

1026
1026
1026
1026
1027
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1027
1027
1027
1026

Ozone (du)

323
321
319
320
321
322
322
322
321
321
320
319
318
317
316
315
314
313
312
312

Forecast for Maršov u Úpice, Trutnov District, Czech Republic (50.48,15.98)

Generated: 18/05/26 18:21:31. Forecast: 18/05/26 to 24/05/26. Timezone: UTC+2.00