Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 15

Waning Crescent 21%

03:12

14:16

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
01 Bad
02 Bad
03 Bad
04 Bad

Sun - Rise: 07:16, Set: 16:16, Transit: 11:46. Moon - Rise: 03:12, Set: 14:16. Civil Dark: 16:52 - 06:40. Nautical Dark: 17:32 - 06:01. Astro Dark: 18:10 - 05:22

Total Clouds (% Sky Obscured)

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

Low Clouds (% Sky Obscured)

56
57
57
50
54
56
54
60
66
61
54
58
56
60
59
53
64
61
61
52
75
90
92
91

Medium Clouds (% Sky Obscured)

92
98
92
91
100
100
98
84
91
100
100
96
93
97
100
100
100
94
100
88
86
77
82
84

High Clouds (% Sky Obscured)

35
76
79
93
100
100
100
100
100
100
99
97
95
87
69
95
91
87
83
65
65
100
100
100

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
7
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
Very Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
1
2
2
0
1
3
9
25
46
58
39
16
7
10
34
48
31

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
88
88
86
80
78
72
69
69
69
74
79
82
85
85
87
88
88
88
90
90
90
93
93

Pressure (mb)

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

Ozone (du)

270
270
270
272
277
278
277
278
278
278
280
283
284
284
284
285
283
282
281
280
280
281
284
289

Sunday 16

Waning Crescent 14%

04:22

14:28

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
01 Bad
02 Bad
03 Bad
04 Bad

Sun - Rise: 07:17, Set: 16:15, Transit: 11:46. Moon - Rise: 04:22, Set: 14:28. Civil Dark: 16:51 - 06:42. Nautical Dark: 17:31 - 06:02. Astro Dark: 18:09 - 05:24

Total Clouds (% Sky Obscured)

100
100
99
94
96
73
55
81
82
80
78
70
79
71
71
69
63
95
96
95
99
100
100
100

Low Clouds (% Sky Obscured)

74
51
41
17
40
45
36
60
56
25
0
0
17
4
9
15
3
25
56
76
97
100
100
100

Medium Clouds (% Sky Obscured)

85
78
85
28
23
2
0
0
0
0
0
0
0
0
0
0
19
74
83
85
88
93
95
89

High Clouds (% Sky Obscured)

100
96
73
89
94
73
15
75
70
72
78
70
75
71
71
69
63
77
85
80
75
73
75
75

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
8
3

Fog (%)

0
1
6
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Light Rain
Light Rain

Precipitation Probability (%)

17
7
2
1
0
0
0
0
0
0
1
1
1
1
1
1
1
1
2
7
13
52
95
95

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
0.8
0.7

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

5
5
5
5
7
7
8
10
11
11
10
9
8
8
8
7
6
6
5
6
6
7
7
3

Dew Point (°C)

6
6
5
5
5
5
6
6
7
7
8
7
7
7
7
7
6
6
6
6
6
6
6
5

Relative Humidity (%)

93
93
90
87
82
78
72
66
66
66
71
77
81
82
85
85
87
85
87
87
87
88
91
90

Pressure (mb)

1011
1011
1011
1011
1010
1010
1009
1008
1008
1007
1007
1006
1006
1006
1006
1006
1006
1006
1006
1005
1005
1004
1004
1004

Ozone (du)

293
295
296
295
294
294
295
295
294
292
292
292
292
292
294
293
292
292
292
293
293
295
295
295

Monday 17

Waning Crescent 8%

No Rise

14:40

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
01 Bad
02 OK
03 Good
04 OK

Sun - Rise: 07:19, Set: 16:14, Transit: 11:47. Moon - Rise: No Rise, Set: 14:40. Civil Dark: 16:50 - 06:43. Nautical Dark: 17:30 - 06:03. Astro Dark: 18:08 - 05:25

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
99
99
100
100
100
98
94
96
87
89
81
84
79
70
18
16
43

Low Clouds (% Sky Obscured)

100
96
100
86
81
61
88
93
97
84
67
51
80
75
84
75
77
40
40
50
30
14
9
34

Medium Clouds (% Sky Obscured)

97
100
100
100
100
100
100
90
97
100
100
100
95
88
81
78
65
65
55
45
43
2
0
0

High Clouds (% Sky Obscured)

76
100
100
100
100
100
97
82
76
58
76
100
88
24
75
75
75
75
70
2
0
0
0
0

ISS Passover

Visibility (miles)

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

Fog (%)

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

Precipitation Type

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

Precipitation Probability (%)

91
85
90
81
49
26
15
10
11
37
43
10
10
10
31
25
33
24
16
8
9
5
1
2

Precipitation Amount (mm)

0.4
0.4
0.7
0.5
0
0
0
0
0
0
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

6
5
3
3
3
3
4
4
5
5
5
5
5
4
4
3
3
3
2
2
2
1
1
0

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
88
91
94
93
91
88
86
83
83
78
70
71
72
76
94
88
86
85
85
83
78
80
81

Pressure (mb)

1005
1005
1005
1006
1006
1006
1006
1006
1006
1007
1007
1008
1010
1011
1012
1013
1014
1015
1016
1017
1017
1018
1019
1019

Ozone (du)

295
295
296
295
293
293
293
292
295
300
304
302
299
302
306
310
314
317
318
320
321
316
312
305

Tuesday 18

Waning Crescent 3%

05:32

14:55

05 OK
06 Bad
07 Bad
08 Bad
09 OK
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

Sun - Rise: 07:21, Set: 16:13, Transit: 11:47. Moon - Rise: 05:32, Set: 14:55. Civil Dark: 16:49 - 06:45. Nautical Dark: 17:29 - 06:05. Astro Dark: 18:07 - 05:26

Total Clouds (% Sky Obscured)

41
60
74
51
42
46
54
49
72
72
63
70
100
91
94
81
81
84
87
70
63
81
79
73

Low Clouds (% Sky Obscured)

41
60
63
42
30
40
51
49
51
47
40
40
37
35
41
42
45
48
47
43
40
39
42
37

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
2
0
23
50
85
86
81
81
73
77
58
57
67
67
54

High Clouds (% Sky Obscured)

0
0
16
31
42
34
21
6
39
55
58
52
69
41
35
8
1
9
6
4
2
2
3
5

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

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

Chance of Frost

Temperature (°C)

1
0
1
1
2
3
3
4
5
5
5
4
3
2
2
2
2
1
1
1
1
1
1
1

Feels Like (°C)

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

Dew Point (°C)

-2
-3
-3
-2
-2
-3
-5
-6
-7
-7
-5
-5
-4
-4
-3
-3
-3
-3
-3
-3
-3
-3
-3
-3

Relative Humidity (%)

81
81
80
81
77
65
54
48
43
43
49
55
62
65
69
72
74
74
75
77
75
75
74
74

Pressure (mb)

1020
1020
1021
1022
1022
1022
1022
1021
1021
1020
1020
1019
1019
1019
1019
1019
1019
1018
1018
1017
1017
1016
1016
1015

Ozone (du)

301
299
297
292
287
284
282
280
282
287
286
284
286
285
286
283
279
282
284
284
288
293
296
293

Wednesday 19

Waning Crescent 1%

06:44

15:14

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

Sun - Rise: 07:22, Set: 16:12, Transit: 11:47. Moon - Rise: 06:44, Set: 15:14. Civil Dark: 16:48 - 06:46. Nautical Dark: 17:28 - 06:06. Astro Dark: 18:06 - 05:28

Total Clouds (% Sky Obscured)

63
43
55
36
32
38
37
44
50
45
45
48
100
100
62
53
48
62
75
88
77
69
68
77

Low Clouds (% Sky Obscured)

32
30
29
24
21
13
6
0
1
2
3
2
1
0
0
0
0
6
11
17
15
14
12
15

Medium Clouds (% Sky Obscured)

39
24
35
24
25
38
37
44
34
27
18
29
39
48
9
17
25
47
61
84
71
56
55
71

High Clouds (% Sky Obscured)

6
1
0
0
0
0
1
1
31
45
45
48
100
100
62
53
48
62
75
88
77
69
68
67

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 (%)

2
0
1
1
0
1
1
0
1
0
0
0
0
0
0
0
0
2
3
3
3
2
0
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)

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

Chance of Frost

Temperature (°C)

1
1
0
1
2
2
3
4
5
5
4
3
2
2
2
1
1
1
1
1
1
1
1
0

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

73
75
74
74
69
62
54
50
47
45
50
56
59
62
64
65
67
70
70
71
73
73
73
74

Pressure (mb)

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

Ozone (du)

291
287
284
283
283
284
282
283
281
278
278
279
276
275
276
276
277
277
277
277
276
276
276
276

Thursday 20

New Moon 0%

07:55

15:39

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
01 Bad
02 Bad
03 Bad
04 Bad

Sun - Rise: 07:24, Set: 16:11, Transit: 11:47. Moon - Rise: 07:55, Set: 15:39. Civil Dark: 16:47 - 06:47. Nautical Dark: 17:27 - 06:08. Astro Dark: 18:05 - 05:29

Total Clouds (% Sky Obscured)

84
89
93
96
99
99
98
97
80
70
62
77
90
99
99
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

18
21
26
34
43
45
47
46
33
21
8
7
6
5
5
4
5
10
16
22
19
18
24
34

Medium Clouds (% Sky Obscured)

80
86
90
92
94
91
88
85
80
70
62
75
79
91
93
96
98
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

71
87
71
44
21
17
13
19
24
24
14
5
5
0
0
0
0
0
0
0
4
9
20
39

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
1
4
4
4
9
12
14
13
12
11
10
6
0
0
0
0
1
1
0
1
1
0
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)

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

Chance of Frost

Temperature (°C)

0
1
1
2
2
3
4
5
5
5
4
4
3
3
2
2
2
1
1
1
1
1
1
1

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

73
74
75
69
64
58
55
52
49
52
54
57
61
65
69
74
78
84
84
86
88
88
86
84

Pressure (mb)

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

Ozone (du)

277
277
277
282
286
291
293
295
297
303
309
315
315
316
317
315
314
313
312
312
312
309
307
305

Friday 21

Waxing Crescent 2%

09:03

16:12

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: 07:25, Set: 16:10, Transit: 11:47. Moon - Rise: 09:03, Set: 16:12. Civil Dark: 16:46 - 06:49. Nautical Dark: 17:26 - 06:09. Astro Dark: 18:05 - 05:30

Total Clouds (% Sky Obscured)

100
100
100
100
100
98
97
95
97
98
100
98
96
94
89
83
79
73
67
60

Low Clouds (% Sky Obscured)

46
55
60
60
65
65
65
60
57
58
55
61
66
72
72
73
74
68
63
56

Medium Clouds (% Sky Obscured)

100
100
94
86
76
75
75
74
81
87
92
86
81
74
64
50
30
33
40
49

High Clouds (% Sky Obscured)

59
68
72
82
92
65
36
7
38
67
98
67
33
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
6
3
0
0
0
0
0
0
0
0
0

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 (%)

1
0
5
7
8
10
9
4
18
25
30
28
27
26
19
15
14
11
10
7

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
81
78
77
76
74
76
79
79
85
91
98
96
96
98
98
98
98
98
98

Pressure (mb)

1015
1016
1016
1016
1017
1017
1017
1017
1017
1018
1018
1019
1019
1020
1021
1021
1022
1022
1023
1023

Ozone (du)

305
304
304
305
307
308
311
313
316
316
316
317
316
314
313
311
309
308
306
305

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

Generated: 15/11/25 05:12:02. Forecast: 15/11/25 to 21/11/25. Timezone: UTC+1.00