Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 14

Waning Crescent 1%

03:27

21:15

01 OK
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 OK
22 OK
23 Good
00 Good

Sun - Rise: 04:51, Set: 21:13, Transit: 13:02. Moon - Rise: 03:27, Set: 21:15. Civil Dark: 21:57 - 04:06. Nautical Dark: 23:03 - 03:01. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

25
54
65
72
69
73
71
88
94
100
86
100
59
97
100
68
82
42
32
39
32
24
13
12

Low Clouds (% Sky Obscured)

25
34
39
45
55
52
41
49
77
55
42
54
10
54
89
36
41
22
2
2
2
2
9
8

Medium Clouds (% Sky Obscured)

5
39
47
53
43
46
33
31
31
55
55
56
44
45
56
29
51
37
32
39
32
24
4
2

High Clouds (% Sky Obscured)

25
54
65
53
9
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
2
3
4

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
8
9
9
9
9
8
8
6
6
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
1
4
4
10
9
8
23
25
26
18
27
33
30
40
37
25
10
3
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)

1
1
2
3
6
7
8
10
12
13
15
15
14
16
13
14
15
15
13
12
8
7
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

11
10
9
9
9
8
7
7
7
7
7
6
7
6
8
9
9
10
12
12
11
10
10
9

Relative Humidity (%)

87
84
84
87
88
80
70
65
63
61
59
48
52
45
54
55
53
61
68
73
78
83
84
87

Pressure (mb)

1016
1015
1015
1015
1014
1014
1014
1014
1014
1013
1013
1013
1012
1012
1012
1011
1011
1011
1011
1012
1012
1013
1013
1013

Ozone (du)

358
357
358
360
363
365
366
367
368
371
376
380
385
385
384
381
376
373
373
375
376
375
373
373

Monday 15

New Moon 0%

04:23

22:21

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

Sun - Rise: 04:51, Set: 21:13, Transit: 13:02. Moon - Rise: 04:23, Set: 22:21. Civil Dark: 21:58 - 04:06. Nautical Dark: 23:04 - 03:00. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

22
7
23
28
18
4
23
42
80
83
96
99
44
34
57
41
51
74
42
23
17
3
0
0

Low Clouds (% Sky Obscured)

22
6
21
28
18
2
23
33
64
63
67
56
37
9
18
13
15
18
1
0
0
0
0
0

Medium Clouds (% Sky Obscured)

12
0
23
28
2
0
20
31
41
38
45
52
43
33
46
40
34
30
21
22
15
3
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
6
61
32
1
0
0
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
0
0
0
0
0
1
2
3
1
3
3
1
0
2
5
4
1
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
7
7
8
8
8
9
12
13
13
14
15
15
16
17
15
14
13
13
10
8
6
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
90
91
93
93
91
81
72
64
57
54
53
59
53
52
51
51
56
62
65
70
77
80
81

Pressure (mb)

1013
1013
1013
1013
1013
1013
1014
1014
1014
1013
1013
1013
1014
1013
1013
1013
1013
1014
1014
1014
1015
1015
1016
1016

Ozone (du)

372
374
374
375
377
379
379
382
384
387
390
394
393
390
388
386
384
383
384
384
384
389
388
389

Tuesday 16

Waxing Crescent 3%

05:38

23:08

01 Good
02 Good
03 Good
04 OK
05 OK
06 OK
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
00 Bad

Sun - Rise: 04:51, Set: 21:14, Transit: 13:02. Moon - Rise: 05:38, Set: 23:08. Civil Dark: 21:58 - 04:06. Nautical Dark: 23:04 - 03:00. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

2
0
3
21
31
42
67
71
65
93
100
82
100
100
97
100
100
100
100
100
100
100
99
98

Low Clouds (% Sky Obscured)

0
0
0
16
30
22
17
31
8
26
26
20
31
54
64
57
50
59
44
45
45
45
52
54

Medium Clouds (% Sky Obscured)

2
0
0
0
1
0
9
34
43
23
60
74
92
72
94
83
47
54
55
78
93
83
78
85

High Clouds (% Sky Obscured)

0
0
3
12
12
35
67
57
65
88
100
81
100
100
96
92
99
100
100
100
100
69
60
27

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
5
0
0
0
0
0
0
0
0
0
0
0
0
0
3
7
18
24
29
29
27

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
85
85
84
85
82
75
68
62
56
52
48
45
46
42
48
58
62
63
66
61
61
62
61

Pressure (mb)

1016
1017
1017
1017
1017
1017
1018
1018
1018
1017
1017
1017
1017
1017
1016
1016
1016
1016
1017
1017
1017
1018
1018
1018

Ozone (du)

388
383
374
368
364
362
360
359
357
356
358
360
360
361
362
361
359
360
360
360
361
361
359
357

Wednesday 17

Waxing Crescent 9%

07:05

23:40

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
00 Bad

Sun - Rise: 04:51, Set: 21:14, Transit: 13:02. Moon - Rise: 07:05, Set: 23:40. Civil Dark: 21:59 - 04:06. Nautical Dark: 23:05 - 03:00. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

88
95
93
92
92
92
92
92
89
93
94
95
96
97
98
100
94
71
62
64
76
71
75
57

Low Clouds (% Sky Obscured)

54
60
61
32
47
56
31
67
54
46
38
50
46
39
51
53
46
24
23
24
32
34
33
32

Medium Clouds (% Sky Obscured)

60
69
76
46
42
80
81
83
68
82
82
86
89
85
83
78
78
62
59
61
67
68
61
50

High Clouds (% Sky Obscured)

3
18
37
48
43
49
53
43
30
42
43
39
26
23
48
72
52
26
2
10
22
26
24
15

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 (%)

27
25
22
16
9
5
0
1
0
0
3
7
12
14
9
3
4
4
1
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
3
2
2
3
4
4
5
8
8
9
8
6
9
7
8
7
5
4
3
2
2
3

Chance of Frost

Temperature (°C)

16
15
15
15
14
15
16
18
18
20
22
23
23
23
24
23
22
22
22
21
19
18
17
17

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

64
68
67
71
82
78
77
67
69
57
53
48
54
60
46
59
69
66
65
74
78
82
83
85

Pressure (mb)

1018
1017
1017
1017
1017
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1019
1019
1019
1020
1020
1020
1021
1021

Ozone (du)

355
353
350
347
345
343
343
342
341
341
340
339
336
335
334
334
334
335
336
336
336
335
335
333

Thursday 18

Waxing Crescent 17%

08:35

00:03

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

Sun - Rise: 04:51, Set: 21:14, Transit: 13:03. Moon - Rise: 08:35, Set: 00:03. Civil Dark: 21:59 - 04:06. Nautical Dark: 23:06 - 03:00. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

45
52
51
54
55
52
56
49
48
46
47
53
52
45
37
31
39
45
52
34
17
2
2
1

Low Clouds (% Sky Obscured)

33
34
30
29
25
22
19
18
17
16
22
29
37
26
13
4
19
33
48
30
14
1
0
0

Medium Clouds (% Sky Obscured)

38
35
36
35
26
15
7
9
11
12
17
23
30
28
17
5
3
1
0
0
0
0
0
0

High Clouds (% Sky Obscured)

10
17
23
30
49
52
56
49
48
46
47
53
52
41
29
19
16
16
16
11
6
0
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
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
1
1
10
11
5
18
19

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)

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

Chance of Frost

Temperature (°C)

16
16
15
15
15
16
18
19
21
23
25
26
27
28
29
29
30
28
26
25
23
22
21
20

Feels Like (°C)

18
18
17
18
17
18
20
22
23
25
27
28
29
30
30
31
31
31
31
31
24
25
25
25

Dew Point (°C)

14
14
13
13
13
13
14
14
13
14
14
15
15
15
15
15
15
17
18
19
18
17
16
16

Relative Humidity (%)

86
87
87
87
87
85
77
69
61
55
52
49
46
45
43
42
42
49
58
69
71
72
74
77

Pressure (mb)

1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1020
1020
1020
1019
1019
1018
1018
1018
1018
1019
1019
1019
1019

Ozone (du)

333
332
331
333
334
335
336
335
336
336
336
335
335
334
333
331
330
329
328
328
328
327
327
327

Friday 19

Waxing Crescent 27%

10:01

00:20

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

Sun - Rise: 04:51, Set: 21:15, Transit: 13:03. Moon - Rise: 10:01, Set: 00:20. Civil Dark: 22:00 - 04:06. Nautical Dark: 23:06 - 03:00. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

0
0
0
0
1
2
2
2
2
1
7
12
16
22
27
33
28
24
19
26
27
31
43
46

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
1
2
3
2
1
0
4
8
12
9
7
5
3
2

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
2
4
5
4
2
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
1
2
5
3
3
4
2
1
1
2
4
7
21
44

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
15
14
6
5
3
0
1
1
0
1
1
0
0
0
0
1
1
1
5
2
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)

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

Chance of Frost

Temperature (°C)

19
19
18
18
18
19
20
22
23
25
27
29
30
31
31
31
32
31
29
28
27
25
23
23

Feels Like (°C)

24
24
21
21
22
22
21
21
27
27
27
29
29
30
36
36
34
35
35
35
29
29
28
28

Dew Point (°C)

16
16
16
16
16
16
17
17
18
18
19
19
18
18
18
17
17
18
19
20
19
18
18
18

Relative Humidity (%)

81
84
85
88
89
84
80
75
70
64
60
55
50
45
44
42
40
47
53
60
63
66
70
74

Pressure (mb)

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

Ozone (du)

327
328
328
328
328
327
326
325
324
324
323
322
321
321
321
322
322
321
320
320
319
319
319
320

Saturday 20

Waxing Crescent 37%

11:22

00:34

Sun - Rise: 04:51, Set: 21:15, Transit: 13:03. Moon - Rise: 11:22, Set: 00:34. Civil Dark: 22:00 - 04:06. Nautical Dark: 23:06 - 03:00. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

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

Generated: 14/06/26 01:52:52. Forecast: 14/06/26 to 20/06/26. Timezone: UTC+2.00