Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 30

Waxing Gibbous 100%

No Rise

04:08

21 Good
22 Good
23 OK
00 Bad
01 Bad
02 OK
03 OK
04 OK
05 OK
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

Sun - Rise: 04:49, Set: 20:57, Transit: 12:53. Moon - Rise: No Rise, Set: 04:08. Civil Dark: 21:39 - 04:06. Nautical Dark: 22:41 - 03:04. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

11
9
44
54
61
36
20
24
33
61
77
92
99
83
72
64
66
72
76
58
100
100
100
100

Low Clouds (% Sky Obscured)

0
3
0
10
24
29
18
11
6
0
0
11
16
50
45
39
37
0
0
17
34
39
39
51

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
10
22
72
73
56
52
65
100
100

High Clouds (% Sky Obscured)

0
9
39
54
61
13
7
24
33
61
77
80
96
73
58
44
8
47
40
16
100
100
92
95

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
3
23
24
20
33

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

Chance of Frost

Temperature (°C)

15
14
13
12
12
11
11
10
10
11
13
14
16
19
20
22
22
23
24
24
24
22
21
19

Feels Like (°C)

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

Dew Point (°C)

11
10
10
10
10
10
10
9
9
9
10
11
12
12
10
9
9
8
8
9
10
12
14
14

Relative Humidity (%)

73
79
81
87
89
92
91
93
91
90
86
80
73
63
52
45
41
38
37
37
43
53
64
69

Pressure (mb)

1015
1016
1016
1017
1016
1016
1016
1015
1015
1015
1015
1015
1015
1014
1013
1013
1012
1012
1011
1010
1010
1010
1010
1010

Ozone (du)

351
349
350
349
350
350
349
346
345
346
347
346
344
345
346
345
345
344
343
345
354
347
349
349

Sunday 31

Full Moon 100%

21:50

04:47

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
18 Bad
19 Bad
20 OK

Sun - Rise: 04:49, Set: 20:58, Transit: 12:54. Moon - Rise: 21:50, Set: 04:47. Civil Dark: 21:41 - 04:05. Nautical Dark: 22:43 - 03:02. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
93
100
98
97
79
66
49
25

Low Clouds (% Sky Obscured)

55
69
70
55
62
70
83
83
84
82
75
89
77
76
55
34
32
60
55
52
51
45
41
25

Medium Clouds (% Sky Obscured)

92
100
100
100
100
100
89
100
100
100
100
100
100
96
98
98
84
96
94
94
59
30
10
0

High Clouds (% Sky Obscured)

87
100
100
100
91
100
100
64
100
100
93
57
55
61
79
91
75
84
15
14
15
0
0
0

ISS Passover

Visibility (miles)

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

Fog (%)

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

Precipitation Type

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

Precipitation Probability (%)

49
80
84
82
82
70
76
86
90
82
95
95
95
91
92
95
95
95
95
95
68
44
18
9

Precipitation Amount (mm)

0
0.6
0.6
0.5
0.4
0
0.3
0.4
0.4
0.3
0.6
0.8
0.9
0.3
0.5
0.9
1
0.9
1.4
0.8
0.6
0.2
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

12
13
12
13
13
13
13
13
13
14
14
13
12
12
12
12
13
14
14
13
14
14
14
14

Relative Humidity (%)

69
78
80
87
93
96
98
98
98
98
96
93
83
78
79
77
77
77
79
78
85
86
81
86

Pressure (mb)

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

Ozone (du)

347
346
346
346
346
346
347
349
350
352
354
354
353
353
353
354
354
355
356
356
356
358
363
363

Monday 1

Waning Gibbous 97%

22:45

05:38

21 OK
22 OK
23 Bad
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

Sun - Rise: 04:48, Set: 20:59, Transit: 12:54. Moon - Rise: 22:45, Set: 05:38. Civil Dark: 21:42 - 04:04. Nautical Dark: 22:45 - 03:01. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

22
30
60
61
71
31
55
58
64
87
85
83
96
82
98
97
95
97
99
100
96
93
89
92

Low Clouds (% Sky Obscured)

0
0
9
4
0
0
16
36
39
21
4
18
21
18
30
23
26
20
16
12
7
4
0
4

Medium Clouds (% Sky Obscured)

22
30
60
61
61
24
51
44
41
49
84
72
95
80
67
46
41
46
76
25
18
16
10
57

High Clouds (% Sky Obscured)

1
3
3
4
54
24
9
7
30
69
62
51
78
50
89
91
80
84
90
100
79
59
38
49

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
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
3
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

13
12
11
11
11
11
10
10
10
10
12
12
13
12
11
11
11
12
12
12
13
13
15
15

Relative Humidity (%)

90
93
93
95
95
95
93
95
95
93
90
84
77
67
60
57
54
53
53
54
56
60
68
73

Pressure (mb)

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

Ozone (du)

359
360
360
359
359
358
357
356
354
354
353
351
350
349
347
346
345
344
343
343
342
340
339
338

Tuesday 2

Waning Gibbous 94%

23:29

06:40

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
18 Bad
19 Bad
20 Bad

Sun - Rise: 04:47, Set: N/A, Transit: 12:54. Moon - Rise: 23:29, Set: 06:40. Civil Dark: 21:43 - 04:03. Nautical Dark: 22:46 - 03:00. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

94
96
96
97
98
98
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

8
14
12
8
5
10
18
22
36
56
75
81
86
92
87
83
78
66
57
45
37
33
29
33

Medium Clouds (% Sky Obscured)

91
59
28
84
59
96
48
87
100
100
100
91
91
100
100
100
100
100
100
99
95
95
95
95

High Clouds (% Sky Obscured)

59
75
77
83
89
93
97
100
99
95
97
94
90
85
89
94
100
99
100
100
91
96
100
90

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
5
8
0
1
7
7
7
5
6

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

Precipitation Probability (%)

1
2
2
1
1
2
2
1
6
13
25
34
48
65
83
83
73
83
57
39
33
38
20
6

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.5
0.5
0.4
0.6
0.2
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

18
17
15
15
15
14
14
14
14
14
15
15
15
15
15
15
16
16
16
15
15
15
15
14

Feels Like (°C)

17
16
15
15
15
14
14
14
14
14
14
14
14
14
14
15
15
15
15
14
15
14
14
14

Dew Point (°C)

14
13
13
13
13
13
13
13
13
13
13
13
13
14
14
15
15
15
15
15
15
15
14
14

Relative Humidity (%)

77
78
86
90
90
92
90
92
92
90
86
86
87
89
92
95
96
96
96
96
96
96
98
98

Pressure (mb)

1009
1009
1009
1009
1009
1008
1008
1008
1008
1008
1008
1008
1008
1009
1009
1009
1009
1009
1009
1010
1010
1010
1011
1011

Ozone (du)

338
339
341
342
343
344
346
348
352
353
353
352
351
352
354
359
362
364
363
363
360
357
355
356

Wednesday 3

Waning Gibbous 88%

00:02

07:49

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
18 Bad
19 OK
20 OK

Sun - Rise: 04:47, Set: 21:00, Transit: 12:54. Moon - Rise: 00:02, Set: 07:49. Civil Dark: 21:44 - 04:03. Nautical Dark: 22:48 - 02:59. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
95
92
88
87
87
85
83
81
78
85
81
79
80
83
86
89
92
94
68
42
15
29

Low Clouds (% Sky Obscured)

42
47
52
55
69
68
70
71
71
70
68
75
70
62
58
55
51
40
30
24
20
14
7
9

Medium Clouds (% Sky Obscured)

91
91
61
26
6
9
5
4
3
0
0
2
5
7
19
26
22
29
37
44
29
16
3
14

High Clouds (% Sky Obscured)

81
98
75
47
30
36
28
25
25
30
24
4
5
5
5
36
43
59
61
66
46
25
11
12

ISS Passover

Visibility (miles)

8
6
5
5
6
5
3
3
0
0
3
6
7
8
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
2
10
18
21
19
12
2
1
0
0
0
0
0
2
4
7
7
7
5
15
19
21
25

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

Chance of Frost

Temperature (°C)

14
13
13
12
12
11
11
11
11
11
12
12
14
15
16
18
19
20
20
19
19
18
18
17

Feels Like (°C)

13
13
12
11
11
11
10
10
10
11
11
11
12
12
12
14
14
15
20
19
17
17
17
18

Dew Point (°C)

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

Relative Humidity (%)

96
98
98
98
100
98
98
98
100
98
96
93
86
79
72
65
58
53
56
57
60
68
73
82

Pressure (mb)

1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1013
1013
1013
1013
1013
1012
1012
1011
1011
1011
1011
1011
1011
1011

Ozone (du)

358
357
360
361
360
361
363
363
365
367
368
369
370
372
374
371
367
364
367
369
372
372
372
373

Thursday 4

Waning Gibbous 81%

00:26

09:01

21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 OK
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

Sun - Rise: 04:46, Set: 21:01, Transit: 12:54. Moon - Rise: 00:26, Set: 09:01. Civil Dark: 21:45 - 04:02. Nautical Dark: 22:49 - 02:57. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

42
54
68
84
100
84
65
48
50
47
45
58
68
80
86
92
98
98
98
99
90
82
72
79

Low Clouds (% Sky Obscured)

12
14
21
28
35
32
29
23
22
20
16
15
13
11
14
18
21
17
12
8
6
3
0
8

Medium Clouds (% Sky Obscured)

10
9
37
69
100
83
65
48
46
47
45
57
66
75
73
71
72
55
40
21
39
55
72
67

High Clouds (% Sky Obscured)

7
4
36
67
100
71
41
10
34
47
45
58
63
56
56
60
64
76
88
99
90
82
72
79

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 (%)

24
11
30
33
16
17
12
5
3
0
0
0
0
0
0
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

16
17
17
16
16
15
12
12
12
12
11
11
16
16
16
16
17
17
20
19
19
20
20
20

Dew Point (°C)

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

Relative Humidity (%)

85
86
89
90
92
93
93
93
93
89
83
78
72
67
62
57
54
50
51
50
51
56
61
69

Pressure (mb)

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

Ozone (du)

373
373
373
378
382
387
382
376
371
368
365
362
360
358
356
352
347
342
340
337
334
333
331
329

Friday 5

Waning Gibbous 72%

00:45

10:15

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: 04:46, Set: 21:02, Transit: 12:54. Moon - Rise: 00:45, Set: 10:15. Civil Dark: 21:46 - 04:01. Nautical Dark: 22:51 - 02:56. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

87
95
86
79
80
89
95
100
100
100
100
98
96
94
95
96
97

Low Clouds (% Sky Obscured)

16
24
17
8
0
18
37
59
68
67
73
62
64
57
45
37
26

Medium Clouds (% Sky Obscured)

59
51
59
70
66
67
68
78
85
91
99
89
78
68
66
63
66

High Clouds (% Sky Obscured)

87
95
86
79
80
89
95
100
100
100
100
68
37
0
7
15
22

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
7

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

Precipitation Probability (%)

0
0
8
22
43
93
95
95
95
95
52
41
36
46
65
68
66

Precipitation Amount (mm)

0
0
0
0
0
0.5
1.1
1.9
1.6
0.9
0.2
0
0
0
0.3
0.3
0.2

Wind Speed/Direction (mph)

2
3
4
2
2
3
4
4
5
6
9
10
12
14
17
17
17

Chance of Frost

Temperature (°C)

18
16
15
15
15
15
14
14
14
14
15
15
16
17
17
18
18

Feels Like (°C)

18
18
17
18
17
17
15
15
14
14
13
12
15
14
13
14
15

Dew Point (°C)

12
12
10
11
11
11
11
11
11
11
11
11
11
10
10
11
12

Relative Humidity (%)

71
73
74
76
78
79
80
80
80
78
76
74
70
66
63
64
66

Pressure (mb)

1013
1012
1012
1012
1011
1011
1011
1012
1012
1012
1013
1013
1014
1015
1016
1017
1018

Ozone (du)

329
328
327
326
325
324
324
324
323
324
325
326
327
327
328
329
329

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

Generated: 30/05/26 21:00:15. Forecast: 30/05/26 to 05/06/26. Timezone: UTC+2.00