Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 9

Waning Gibbous 65%

23:52

10:35

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
01 Bad
02 Bad

Sun - Rise: 07:54, Set: 16:12, Transit: 12:03. Moon - Rise: 23:52, Set: 10:35. Civil Dark: 16:50 - 07:16. Nautical Dark: 17:31 - 06:34. Astro Dark: 18:11 - 05:55

Total Clouds (% Sky Obscured)

54
58
68
70
100
100
100
100
100
100
100
100
100
100
99
99
99
97
93
98
100
100
100
99

Low Clouds (% Sky Obscured)

54
56
1
7
12
63
86
92
93
91
87
94
91
83
88
98
93
89
84
91
94
90
87
86

Medium Clouds (% Sky Obscured)

38
58
68
70
99
99
97
100
92
100
100
71
73
96
84
59
76
86
70
80
86
95
96
95

High Clouds (% Sky Obscured)

8
20
46
53
48
100
100
100
100
100
100
100
94
79
84
40
89
60
60
70
70
70
82
8

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
1
0
0
0
0
2
2
0
0
0
0
0
0
0
1
0
0

Fog (%)

0
1
7
25
38
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
Snow
Snow
Snow
Snow
Snow
Snow
None
None
Snow
None
None
None
Snow
None
Snow
Snow
Snow
Snow

Precipitation Probability (%)

0
0
0
0
2
9
56
75
91
86
58
34
17
28
45
31
31
31
37
34
49
57
57
47

Precipitation Amount (mm)

0
0
0
0
0
0
0.2
0.3
0.7
0.7
0.4
0.1
0
0
0.2
0
0
0
0.1
0
0.2
0.3
0.3
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-10
-10
-10
-10
-11
-11
-9
-7
-7
-6
-5
-5
-5
-6
-6
-6
-6
-7
-6
-6
-5
-5
-5
-5

Feels Like (°C)

-14
-13
-14
-15
-15
-15
-12
-10
-10
-9
-8
-8
-9
-9
-10
-9
-9
-10
-9
-9
-8
-8
-8
-8

Dew Point (°C)

-12
-12
-13
-13
-15
-14
-13
-11
-8
-7
-6
-5
-6
-7
-7
-7
-6
-7
-7
-6
-6
-5
-5
-5

Relative Humidity (%)

85
85
81
80
76
78
68
77
87
92
94
94
92
94
96
96
94
94
94
96
94
96
98
96

Pressure (mb)

1011
1010
1009
1008
1007
1007
1006
1006
1005
1004
1003
1003
1002
1002
1002
1002
1001
1001
1001
1001
1001
1001
1001
1001

Ozone (du)

339
337
333
325
318
332
338
336
338
338
342
348
348
346
346
345
349
351
354
364
372
372
373
377

Saturday 10

Third Quarter 55%

01:04

10:47

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 OK
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad

Sun - Rise: 07:53, Set: 16:14, Transit: 12:03. Moon - Rise: 01:04, Set: 10:47. Civil Dark: 16:51 - 07:15. Nautical Dark: 17:32 - 06:34. Astro Dark: 18:12 - 05:55

Total Clouds (% Sky Obscured)

97
100
100
100
100
100
100
100
100
95
90
85
90
61
36
50
80
88
66
52
49
51
89
100

Low Clouds (% Sky Obscured)

83
87
89
91
96
98
96
95
85
80
78
77
63
2
1
1
10
20
21
29
37
45
71
71

Medium Clouds (% Sky Obscured)

95
95
100
100
99
100
100
100
99
89
86
73
80
26
28
41
59
79
57
35
17
12
77
95

High Clouds (% Sky Obscured)

13
10
18
27
23
37
53
7
3
35
9
1
2
23
9
15
57
43
9
0
0
0
0
0

ISS Passover

Visibility (miles)

0
0
0
0
0
0
0
0
3
0
4
9
9
9
9
9
9
9
9
9
8
8
9
1

Fog (%)

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

Precipitation Type

Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

48
54
57
68
75
74
64
52
40
34
16
10
5
3
1
0
0
2
6
8
9
14
18
25

Precipitation Amount (mm)

0.2
0.2
0.2
0.3
0.4
0.4
0.3
0.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

2
3
3
4
4
6
7
10
11
12
14
14
14
13
12
11
9
7
6
5
4
4
3
2

Chance of Frost

Temperature (°C)

-5
-6
-5
-5
-4
-5
-6
-7
-7
-7
-7
-8
-9
-10
-11
-11
-11
-12
-12
-13
-14
-14
-14
-15

Feels Like (°C)

-8
-9
-8
-8
-8
-8
-10
-11
-11
-12
-13
-13
-15
-16
-17
-17
-16
-16
-17
-17
-18
-18
-17
-17

Dew Point (°C)

-6
-7
-5
-5
-5
-6
-7
-8
-9
-9
-9
-10
-11
-13
-14
-14
-14
-14
-15
-15
-15
-16
-16
-16

Relative Humidity (%)

96
94
96
96
96
94
92
92
87
87
85
82
82
80
80
80
80
83
83
83
86
84
86
88

Pressure (mb)

1001
1001
1001
1001
1001
1002
1003
1004
1004
1005
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1015
1016
1017

Ozone (du)

375
373
375
377
381
385
386
389
389
387
386
388
390
388
389
389
389
392
392
389
386
389
392
393

Sunday 11

Waning Crescent 45%

02:16

11:00

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
21 Good
22 Good
23 OK
00 Good
01 Bad
02 Bad

Sun - Rise: 07:52, Set: 16:15, Transit: 12:04. Moon - Rise: 02:16, Set: 11:00. Civil Dark: 16:53 - 07:15. Nautical Dark: 17:34 - 06:34. Astro Dark: 18:13 - 05:54

Total Clouds (% Sky Obscured)

93
87
89
98
100
100
99
99
96
99
99
99
100
56
49
31
21
14
9
9
16
14
31
48

Low Clouds (% Sky Obscured)

77
78
80
96
96
92
77
53
80
87
85
62
42
27
20
29
20
12
7
7
13
12
28
46

Medium Clouds (% Sky Obscured)

83
46
63
76
100
99
94
96
93
95
91
95
92
56
49
20
12
5
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
69
80
53
56
7
11
4
17
74
4
0
0
0
0
0
0
0
0
1
1

ISS Passover

Visibility (miles)

3
3
1
1
1
1
1
2
5
5
5
5
8
9
9
9
9
9
9
9
8
7
6
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
Snow
Snow
Snow
Snow
Snow
Snow
None
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

20
31
34
49
54
57
52
47
49
48
45
37
30
26
23
17
11
11
9
7
5
0
0
0

Precipitation Amount (mm)

0
0
0
0.1
0.2
0.2
0.1
0.1
0.1
0
0.1
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

1
1
2
2
2
2
3
4
6
8
10
9
7
5
5
5
4
3
3
2
2
1
2
2

Chance of Frost

Temperature (°C)

-13
-14
-14
-13
-13
-12
-10
-8
-6
-5
-5
-5
-6
-7
-10
-11
-11
-13
-13
-13
-14
-15
-16
-17

Feels Like (°C)

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

Dew Point (°C)

-15
-16
-16
-14
-14
-13
-11
-10
-8
-7
-7
-8
-8
-9
-11
-13
-13
-14
-15
-15
-16
-17
-18
-19

Relative Humidity (%)

88
88
88
90
90
90
90
88
85
82
81
82
84
88
88
86
86
86
84
84
84
84
84
84

Pressure (mb)

1017
1017
1018
1018
1019
1019
1019
1020
1020
1020
1020
1020
1021
1022
1024
1025
1025
1026
1027
1027
1028
1028
1028
1029

Ozone (du)

394
394
389
386
393
401
404
405
406
406
404
404
402
400
401
404
402
398
394
392
385
379
376
371

Monday 12

Waning Crescent 35%

No Rise

11:16

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
01 Bad
02 Bad

Sun - Rise: 07:52, Set: 16:16, Transit: 12:04. Moon - Rise: No Rise, Set: 11:16. Civil Dark: 16:54 - 07:14. Nautical Dark: 17:35 - 06:33. Astro Dark: 18:14 - 05:54

Total Clouds (% Sky Obscured)

79
73
71
97
86
90
79
84
70
55
70
85
100
100
99
99
99
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

77
72
71
82
86
89
79
51
26
1
1
0
1
21
25
24
25
30
30
25
25
25
25
30

Medium Clouds (% Sky Obscured)

0
0
0
0
5
8
4
60
60
55
63
75
100
99
99
98
99
99
100
100
100
100
100
100

High Clouds (% Sky Obscured)

1
0
1
21
3
15
7
41
25
45
59
70
83
82
82
82
88
94
100
100
100
100
100
100

ISS Passover

Visibility (miles)

7
6
6
6
3
5
5
9
9
9
9
9
9
9
9
9
9
9
9
5
5
1
1
0

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
Snow
Snow
Snow
Snow

Precipitation Probability (%)

0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
3
16
19
36
53
58
63

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.1
0.2
0.2
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-17
-18
-18
-18
-18
-18
-17
-14
-13
-11
-10
-10
-10
-10
-10
-10
-11
-10
-10
-9
-9
-8
-8
-8

Feels Like (°C)

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

Dew Point (°C)

-19
-20
-20
-20
-20
-20
-18
-17
-15
-14
-13
-13
-12
-12
-12
-13
-13
-13
-13
-12
-11
-10
-10
-9

Relative Humidity (%)

84
83
84
84
84
83
85
82
79
76
75
75
80
85
86
83
81
80
78
80
80
85
88
94

Pressure (mb)

1029
1029
1029
1029
1029
1030
1030
1029
1029
1028
1027
1026
1026
1026
1026
1026
1026
1025
1025
1024
1024
1023
1023
1022

Ozone (du)

364
361
355
350
345
340
336
329
323
320
318
319
321
321
320
316
317
318
318
318
315
316
313
312

Tuesday 13

Waning Crescent 26%

03:28

11:36

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
01 Bad
02 Bad

Sun - Rise: 07:51, Set: 16:18, Transit: 12:04. Moon - Rise: 03:28, Set: 11:36. Civil Dark: 16:55 - 07:14. Nautical Dark: 17:36 - 06:33. Astro Dark: 18:15 - 05:54

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
95
90
85
87
89
92
83
76
67
67
66
60
60
60
55
65
80

Low Clouds (% Sky Obscured)

30
37
48
55
48
42
30
25
25
25
36
47
55
39
19
35
45
45
45
45
40
40
47
62

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
95
90
77
78
80
82
80
73
67
67
66
60
60
60
55
60
55

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
75
51
30
35
35
30
25
15
10
5
5
0
0
0
0
14
24

ISS Passover

Visibility (miles)

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

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

Snow
Snow
Snow
None
None
None
None
None
None
None
None
None
Sleet
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

78
83
70
36
32
29
22
12
3
16
34
44
49
41
29
7
13
17
21
25
25
20
16
10

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-11
-10
-9
-9
-9
-8
-8
-7
-7
-6
-5
-4
-4
-4
-4
-4
-4
-3
-4
-5
-5
-4
-4
-4

Dew Point (°C)

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

Relative Humidity (%)

96
96
94
96
96
98
100
98
100
98
98
98
100
98
98
100
98
98
98
98
98
98
98
98

Pressure (mb)

1021
1021
1021
1020
1020
1020
1020
1020
1020
1020
1019
1019
1020
1020
1020
1020
1020
1021
1021
1021
1021
1021
1021
1021

Ozone (du)

305
305
307
309
310
307
306
307
310
311
314
313
313
313
312
310
309
309
310
310
311
312
313
313

Wednesday 14

Waning Crescent 18%

04:39

12:03

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
01 Bad
02 Bad

Sun - Rise: 07:50, Set: 16:19, Transit: 12:05. Moon - Rise: 04:39, Set: 12:03. Civil Dark: 16:57 - 07:13. Nautical Dark: 17:37 - 06:32. Astro Dark: 18:17 - 05:53

Total Clouds (% Sky Obscured)

95
94
93
93
95
98
100
100
100
100
100
99
99
99
100
100
100
100
100
100
100
100
97
93

Low Clouds (% Sky Obscured)

85
80
75
68
72
71
74
73
76
79
81
84
87
90
94
97
98
99
100
98
95
92
89
85

Medium Clouds (% Sky Obscured)

55
59
48
54
79
78
90
91
91
93
92
90
89
91
93
95
94
90
85
75
69
60
40
29

High Clouds (% Sky Obscured)

26
35
40
50
38
33
23
19
14
9
14
14
18
46
73
100
100
99
98
88
64
43
29
16

ISS Passover

Visibility (miles)

4
4
4
4
4
4
4
4
3
2
0
0
0
0
1
2
2
2
1
0
3
6
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
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
12
21
29
29
27
29
55
76
95
92
79
66
60
49

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.4
0.8
0.7
0.4
0.3
0.2
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
96
96
96
98
96
98
96
98
100
100
100
98
98
98
98
96
98
98
98
96
96
96
94

Pressure (mb)

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

Ozone (du)

314
315
313
312
310
312
314
317
320
324
327
329
331
332
337
341
346
348
350
353
349
345
341
337

Thursday 15

Waning Crescent 11%

05:45

12:40

Sun - Rise: 07:50, Set: 16:21, Transit: 12:05. Moon - Rise: 05:45, Set: 12:40. Civil Dark: 16:58 - 07:12. Nautical Dark: 17:39 - 06:32. Astro Dark: 18:18 - 05:53

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

Generated: 09/01/26 03:41:04. Forecast: 09/01/26 to 15/01/26. Timezone: UTC+1.00