Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 3

Waning Gibbous 96%

21:39

06:55

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 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad

Sun - Rise: 06:31, Set: 19:37, Transit: 13:05. Moon - Rise: 21:39, Set: 06:55. Civil Dark: 20:10 - 05:58. Nautical Dark: 20:50 - 05:18. Astro Dark: 21:32 - 04:35

Total Clouds (% Sky Obscured)

83
85
85
92
58
97
97
83
99
99
98
94
41
72
71
83
86
97
96
100
78
91
88
100

Low Clouds (% Sky Obscured)

57
66
45
55
58
65
59
5
28
53
63
47
1
2
2
13
15
41
56
73
75
84
61
78

Medium Clouds (% Sky Obscured)

49
50
27
45
33
49
59
72
70
68
62
65
41
70
69
55
60
47
91
55
50
70
53
55

High Clouds (% Sky Obscured)

3
0
0
1
4
4
4
25
57
7
0
0
0
3
4
51
50
75
72
71
7
4
4
8

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
18
9
18
15
3
3
2
0
1
1
0
0
0
0
1
11
20
22
14
16
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)

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

Chance of Frost

Temperature (°C)

3
5
7
8
11
12
12
13
14
13
13
11
11
10
9
9
9
8
8
8
8
8
8
9

Feels Like (°C)

0
3
4
6
9
10
9
11
12
12
10
9
8
9
6
6
6
5
5
4
4
4
3
4

Dew Point (°C)

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

Relative Humidity (%)

67
71
75
78
76
62
65
71
62
66
66
70
72
77
74
77
78
78
78
77
77
78
79
78

Pressure (mb)

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

Ozone (du)

399
408
413
415
411
408
403
400
396
390
386
385
381
380
380
376
376
374
372
372
372
372
373
372

Saturday 4

Waning Gibbous 92%

22:52

07:15

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
01 Bad
02 Bad
03 Bad
04 Bad
05 OK
06 OK
07 Bad
08 Bad

Sun - Rise: 06:28, Set: 19:39, Transit: 13:05. Moon - Rise: 22:52, Set: 07:15. Civil Dark: 20:12 - 05:55. Nautical Dark: 20:52 - 05:15. Astro Dark: 21:35 - 04:32

Total Clouds (% Sky Obscured)

96
95
97
100
99
98
100
99
96
61
50
81
70
58
81
66
98
100
69
100
27
25
70
54

Low Clouds (% Sky Obscured)

84
70
60
93
72
50
75
37
55
44
21
66
63
48
46
1
11
8
19
21
14
3
0
0

Medium Clouds (% Sky Obscured)

50
53
39
36
37
43
97
95
43
42
0
33
2
2
3
5
48
97
64
77
21
22
43
33

High Clouds (% Sky Obscured)

14
84
84
100
93
89
100
49
65
3
0
3
6
8
72
60
68
100
69
100
0
6
48
48

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 (%)

26
14
4
9
10
16
15
4
19
2
1
0
1
1
0
0
2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
78
75
69
78
65
68
75
70
80
83
84
86
86
84
88
93
93
93
93
91
91
91
85

Pressure (mb)

1019
1020
1020
1020
1020
1019
1019
1020
1020
1020
1020
1021
1022
1022
1022
1022
1022
1022
1022
1021
1021
1021
1021
1021

Ozone (du)

372
373
375
374
372
369
367
366
365
366
367
365
365
366
368
370
370
374
374
373
371
369
369
369

Sunday 5

Waning Gibbous 85%

00:04

07:41

09 Bad
10 Good
11 Bad
12 Good
13 Good
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

Sun - Rise: 06:26, Set: 19:40, Transit: 13:04. Moon - Rise: 00:04, Set: 07:41. Civil Dark: 20:13 - 05:53. Nautical Dark: 20:53 - 05:13. Astro Dark: 21:37 - 04:29

Total Clouds (% Sky Obscured)

60
12
69
14
8
68
61
99
100
96
97
100
100
100
99
97
98
98
98
98
41
61
90
99

Low Clouds (% Sky Obscured)

0
4
9
0
0
0
10
9
0
0
0
0
11
29
37
36
44
46
57
45
5
16
11
10

Medium Clouds (% Sky Obscured)

20
0
1
2
0
62
56
96
89
83
97
100
100
99
96
93
94
79
58
33
13
14
15
17

High Clouds (% Sky Obscured)

60
9
69
9
8
7
30
72
100
95
93
100
100
100
94
85
75
79
77
21
34
51
89
98

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
6
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
2
25
28
25
15
8
11
10
14
7
30
18
9
9
3
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)

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

Chance of Frost

Temperature (°C)

12
14
16
18
20
21
22
22
21
21
19
18
17
16
15
14
12
12
11
10
9
8
8
8

Feels Like (°C)

9
11
15
15
18
19
18
17
17
17
17
15
13
13
12
10
8
8
7
7
5
4
3
3

Dew Point (°C)

7
8
9
9
9
9
9
11
11
12
13
11
9
10
10
8
7
6
6
6
5
2
2
2

Relative Humidity (%)

75
69
61
54
48
45
45
49
53
58
66
65
62
68
70
68
69
68
74
78
76
68
68
68

Pressure (mb)

1021
1020
1020
1019
1019
1018
1017
1017
1017
1017
1017
1018
1019
1019
1020
1021
1021
1022
1023
1023
1024
1025
1026
1027

Ozone (du)

367
368
362
359
359
360
357
356
356
357
358
357
355
356
355
354
355
359
361
364
365
366
367
366

Monday 6

Waning Gibbous 78%

01:12

08:17

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 Good
23 OK
00 OK
01 Good
02 OK
03 OK
04 OK
05 OK
06 Good
07 Good
08 OK

Sun - Rise: 06:24, Set: 19:42, Transit: 13:04. Moon - Rise: 01:12, Set: 08:17. Civil Dark: 20:15 - 05:51. Nautical Dark: 20:55 - 05:10. Astro Dark: 21:39 - 04:26

Total Clouds (% Sky Obscured)

98
97
87
79
60
80
67
83
80
81
61
54
32
8
19
22
5
23
37
35
34
16
17
20

Low Clouds (% Sky Obscured)

31
42
45
44
42
29
23
21
19
8
1
0
0
1
1
1
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

18
18
12
6
0
7
14
24
24
26
28
19
9
0
1
0
0
0
0
0
0
0
1
3

High Clouds (% Sky Obscured)

95
83
32
52
31
65
46
56
61
66
43
46
30
6
19
22
4
17
33
33
26
16
14
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 (%)

1
2
2
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)

14
14
13
13
14
13
13
13
12
11
9
7
5
3
2
2
2
3
3
3
3
2
2
1

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

63
61
59
47
40
37
37
36
38
42
45
50
54
56
59
62
64
66
66
67
68
69
69
62

Pressure (mb)

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

Ozone (du)

365
364
362
362
361
362
363
363
363
363
364
366
365
364
364
365
364
361
359
356
356
357
358
357

Tuesday 7

Waning Gibbous 69%

02:11

09:03

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

Sun - Rise: 06:22, Set: 19:43, Transit: 13:04. Moon - Rise: 02:11, Set: 09:03. Civil Dark: 20:17 - 05:49. Nautical Dark: 20:57 - 05:08. Astro Dark: 21:41 - 04:24

Total Clouds (% Sky Obscured)

25
56
21
13
8
3
3
3
3
0
6
4
2
0
0
0
0
1
3
5
4
4
4
3

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)

1
0
0
0
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

21
49
19
11
2
1
1
2
2
0
6
4
2
0
0
0
0
1
2
2
2
1
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)

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

Chance of Frost

Temperature (°C)

7
8
10
11
12
13
13
14
14
13
12
10
8
8
6
6
6
5
4
4
3
4
4
4

Feels Like (°C)

6
7
7
10
11
11
12
12
12
12
10
8
7
7
7
7
6
6
3
3
3
3
3
3

Dew Point (°C)

-1
-2
-1
-2
-2
-2
-2
-2
-2
-2
-2
-3
-4
-4
-5
-4
-4
-4
-5
-4
-4
-4
-4
-3

Relative Humidity (%)

57
50
46
42
38
35
34
32
33
36
39
40
42
43
46
47
49
51
53
55
58
59
59
60

Pressure (mb)

1027
1027
1026
1026
1025
1024
1023
1023
1022
1022
1022
1022
1021
1021
1021
1021
1021
1021
1022
1022
1022
1022
1022
1023

Ozone (du)

357
357
356
357
360
362
363
363
362
362
363
364
364
365
365
367
368
369
370
371
371
374
376
379

Wednesday 8

Waning Gibbous 60%

02:59

09:03

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

Sun - Rise: 06:20, Set: 19:45, Transit: 13:03. Moon - Rise: 02:59, Set: 09:03. Civil Dark: 20:18 - 05:46. Nautical Dark: 20:59 - 05:05. Astro Dark: 21:43 - 04:21

Total Clouds (% Sky Obscured)

1
0
0
0
0
0
0
0
0
0
0
1
1
2
1
0
0
1
3
4
7
12
18
33

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
1
1
1
0
0
0
0
0
0
0
0
0
6

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
1
5

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
6
12
13
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 (%)

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)

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

Chance of Frost

Temperature (°C)

6
8
9
10
11
12
12
12
12
10
9
7
6
5
4
3
3
2
2
1
0
1
1
1

Feels Like (°C)

4
4
4
5
6
6
10
10
9
9
9
9
4
4
4
3
3
2
-1
-1
-1
-1
-1
-2

Dew Point (°C)

-3
-3
-3
-3
-3
-4
-3
-3
-3
-3
-3
-3
-3
-3
-3
-3
-4
-4
-4
-4
-4
-4
-4
-4

Relative Humidity (%)

54
49
43
40
38
34
34
35
35
40
45
49
52
56
59
62
63
66
69
71
74
73
70
69

Pressure (mb)

1023
1023
1023
1022
1022
1022
1021
1021
1020
1021
1021
1021
1022
1022
1023
1023
1023
1023
1022
1022
1022
1022
1022
1021

Ozone (du)

380
382
384
383
383
383
381
379
378
378
378
378
380
382
383
382
381
380
380
381
381
384
387
390

Thursday 9

Waning Gibbous 50%

03:35

10:02

09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 OK
21 OK
22 OK
23 OK
00 OK
01 Good

Sun - Rise: 06:18, Set: 19:46, Transit: 13:03. Moon - Rise: 03:35, Set: 10:02. Civil Dark: 20:20 - 05:44. Nautical Dark: 21:01 - 05:03. Astro Dark: 21:45 - 04:18

Total Clouds (% Sky Obscured)

49
75
74
76
74
68
62
52
52
56
55
39
33
23
23
19
14

Low Clouds (% Sky Obscured)

10
16
14
14
14
11
7
2
1
1
1
1
1
1
1
2
2

Medium Clouds (% Sky Obscured)

16
24
28
36
36
32
29
19
14
13
11
15
17
15
10
5
0

High Clouds (% Sky Obscured)

12
20
19
19
18
16
14
6
4
0
0
0
0
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

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 (%)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-4
-4
-4
-3
-4
-4
-4
-4
-5
-5
-6
-6
-6
-6
-5
-5
-6

Relative Humidity (%)

62
58
52
49
45
42
42
42
42
44
45
47
51
56
60
63
64

Pressure (mb)

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

Ozone (du)

391
392
392
394
395
396
397
398
399
400
401
402
403
405
406
408
410

Forecast for Královské Vinohrady, Praha 2, Czech Republic (50.08,14.44)

Generated: 03/04/26 09:52:21. Forecast: 03/04/26 to 09/04/26. Timezone: UTC+2.00