Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 18

Waning Crescent 3%

05:27

14:48

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
01 Bad

Sun - Rise: 07:16, Set: 16:06, Transit: 11:41. Moon - Rise: 05:27, Set: 14:48. Civil Dark: 16:42 - 06:40. Nautical Dark: 17:22 - 06:00. Astro Dark: 18:01 - 05:21

Total Clouds (% Sky Obscured)

84
77
57
40
50
55
59
69
71
74
81
96
100
100
100
100
100
100
98
97
84
61
66
76

Low Clouds (% Sky Obscured)

46
38
45
40
50
55
59
69
71
74
73
66
62
56
61
63
61
55
61
65
70
61
53
43

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
35
81
99
100
99
100
98
89
87
8
2
4
76

High Clouds (% Sky Obscured)

0
0
0
0
3
3
3
0
0
7
43
84
90
98
93
68
56
60
6
3
0
2
0
1

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-3
-3
-3
-3
-3
-3
-2
-3
-3
-3
-3
-3
-3
-2
-2
-2
-2
-2
-2
-2
-2
-3
-3
-3

Relative Humidity (%)

80
78
84
89
92
94
94
84
77
71
69
69
72
76
81
83
84
84
86
86
91
91
92
89

Pressure (mb)

1016
1017
1018
1018
1019
1019
1020
1020
1020
1020
1020
1019
1019
1018
1018
1018
1018
1018
1018
1018
1017
1017
1017
1016

Ozone (du)

295
291
295
292
287
288
289
288
288
289
292
295
288
276
279
277
277
279
282
291
296
298
292
289

Wednesday 19

Waning Crescent 1%

06:39

15:06

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

Sun - Rise: 07:18, Set: 16:05, Transit: 11:41. Moon - Rise: 06:39, Set: 15:06. Civil Dark: 16:41 - 06:41. Nautical Dark: 17:21 - 06:01. Astro Dark: 18:00 - 05:22

Total Clouds (% Sky Obscured)

61
59
50
30
30
34
28
69
85
85
100
100
100
100
100
100
84
90
100
100
100
100
71
71

Low Clouds (% Sky Obscured)

32
28
36
30
30
34
28
69
68
57
52
56
34
10
1
1
1
2
23
47
45
50
50
37

Medium Clouds (% Sky Obscured)

61
42
36
0
5
0
1
0
0
0
0
0
0
0
70
70
84
90
100
100
100
100
55
53

High Clouds (% Sky Obscured)

4
12
1
0
0
0
0
3
44
72
100
100
100
100
100
74
55
47
93
61
28
25
25
25

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 (%)

1
1
1
1
1
1
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
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
3
3
4
4
4
5
7
9
9
9
9
7
5
5
6
6
6
6
6
6
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
87
87
87
89
89
91
83
77
69
63
60
60
65
73
75
81
83
84
83
84
87
91
92

Pressure (mb)

1016
1015
1015
1015
1015
1015
1015
1015
1014
1014
1012
1012
1011
1011
1011
1010
1010
1010
1010
1010
1009
1009
1009
1008

Ozone (du)

286
288
289
290
286
284
285
283
280
278
278
277
274
272
271
272
272
270
272
273
272
272
272
275

Thursday 20

New Moon 0%

07:51

15:31

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
01 Bad

Sun - Rise: 07:19, Set: 16:04, Transit: 11:41. Moon - Rise: 07:51, Set: 15:31. Civil Dark: 16:40 - 06:43. Nautical Dark: 17:20 - 06:02. Astro Dark: 17:59 - 05:24

Total Clouds (% Sky Obscured)

97
100
100
100
100
93
93
97
100
100
91
99
97
99
98
97
88
82
92
95
93
91
88
84

Low Clouds (% Sky Obscured)

47
57
64
67
97
80
80
93
100
100
69
99
83
79
57
63
58
40
38
42
27
15
2
3

Medium Clouds (% Sky Obscured)

90
100
100
100
33
47
36
39
53
94
91
95
95
91
81
67
64
44
26
13
13
62
88
84

High Clouds (% Sky Obscured)

30
50
55
60
70
70
36
1
4
0
0
0
0
0
0
0
3
35
54
40
35
34
32
27

ISS Passover

Visibility (miles)

9
9
9
8
9
9
8
9
9
9
9
9
8
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
1
6
43
2
2
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
5
1
3
3
16
10
8
8
15
2
0
2
3
3
2
1
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
5
5
5
5
5
7
8
8
9
9
9
8
6
5
3
2
2
2
1
2
2
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
94
92
94
92
94
92
91
86
81
77
74
81
84
86
89
89
91
94
92
92
91
89
87

Pressure (mb)

1008
1008
1007
1007
1007
1007
1008
1008
1009
1009
1009
1009
1009
1010
1011
1012
1013
1014
1014
1015
1015
1016
1016
1016

Ozone (du)

276
279
280
287
295
295
294
295
302
311
321
328
331
328
322
320
320
320
321
325
327
328
327
325

Friday 21

Waxing Crescent 2%

09:00

16:04

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 OK
00 Bad
01 Bad

Sun - Rise: 07:21, Set: 16:03, Transit: 11:42. Moon - Rise: 09:00, Set: 16:04. Civil Dark: 16:39 - 06:44. Nautical Dark: 17:20 - 06:04. Astro Dark: 17:58 - 05:25

Total Clouds (% Sky Obscured)

77
67
71
79
86
79
74
71
74
70
96
96
95
90
67
98
100
99
73
99
53
43
49
59

Low Clouds (% Sky Obscured)

3
2
2
2
2
2
2
2
8
14
20
13
6
0
0
0
0
1
1
1
1
1
1
1

Medium Clouds (% Sky Obscured)

77
39
18
20
56
61
74
71
61
49
61
47
89
88
65
66
52
54
62
70
53
39
23
24

High Clouds (% Sky Obscured)

16
15
10
15
25
30
40
50
37
25
45
49
21
14
36
61
100
99
73
98
53
32
8
10

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
84
84
84
82
82
82
78
74
64
56
53
54
61
72
78
78
76
78
79
78
78
78
78

Pressure (mb)

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

Ozone (du)

322
320
320
320
319
321
319
318
321
323
322
321
323
325
325
323
321
318
317
319
323
324
325
326

Saturday 22

Waxing Crescent 5%

10:01

16:48

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

Sun - Rise: 07:22, Set: 16:01, Transit: 11:42. Moon - Rise: 10:01, Set: 16:48. Civil Dark: 16:38 - 06:45. Nautical Dark: 17:19 - 06:05. Astro Dark: 17:58 - 05:26

Total Clouds (% Sky Obscured)

59
63
39
25
13
10
5
5
6
3
3
8
13
17
22
26
32
34
37
44
44
43
48
53

Low Clouds (% Sky Obscured)

1
2
1
2
2
2
2
2
1
1
1
1
1
1
1
0
2
11
20
29
36
43
48
53

Medium Clouds (% Sky Obscured)

24
24
21
15
8
5
0
0
2
0
0
5
11
16
16
21
26
19
19
20
22
23
30
40

High Clouds (% Sky Obscured)

20
20
4
1
1
2
1
1
0
0
0
2
4
6
12
19
26
34
37
44
44
43
48
53

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
Snow

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
2
0
23
24
18
52

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
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-7
-7
-8
-6
-6
-6
-5
-4
-3
-2
-1
-0
-1
-1
-2
-2
-2
-3
-5
-5
-5
-5
-5
-6

Dew Point (°C)

-7
-7
-7
-7
-7
-7
-6
-6
-7
-7
-7
-7
-7
-7
-7
-7
-7
-6
-6
-6
-6
-6
-7
-7

Relative Humidity (%)

79
79
81
82
82
84
84
75
68
62
59
57
61
64
69
73
78
82
84
85
87
87
85
85

Pressure (mb)

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

Ozone (du)

327
330
331
332
330
328
326
327
331
330
325
321
318
315
311
308
305
302
304
305
307
309
312
314

Sunday 23

Waxing Crescent 10%

10:51

17:45

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
21 OK
22 OK
23 OK
00 OK
01 Bad

Sun - Rise: 07:24, Set: 16:01, Transit: 11:42. Moon - Rise: 10:51, Set: 17:45. Civil Dark: 16:37 - 06:47. Nautical Dark: 17:18 - 06:06. Astro Dark: 17:57 - 05:27

Total Clouds (% Sky Obscured)

53
53
58
58
58
58
58
58
53
53
48
53
44
45
41
42
48
38
31
21
26
32
40
50

Low Clouds (% Sky Obscured)

53
53
58
58
58
58
55
52
49
50
48
49
44
42
41
42
48
38
28
16
22
27
35
39

Medium Clouds (% Sky Obscured)

45
45
45
58
58
40
58
58
53
53
48
53
44
45
41
42
48
38
21
0
0
0
0
8

High Clouds (% Sky Obscured)

53
53
58
58
58
58
58
58
53
53
48
53
44
45
41
28
3
2
2
2
2
4
4
13

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

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

Precipitation Probability (%)

73
84
74
69
76
78
67
42
41
41
35
35
37
39
34
29
23
17
12
3
2
0
0
0

Precipitation Amount (mm)

0.4
0.5
0.3
0.3
0.3
0.4
0.3
0
0
0
0
0
0
0.1
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-7
-6
-6
-7
-6
-6
-7
-7
-7
-6
-7
-6
-3
-3
-3
-4
-4
-4
-6
-6
-6
-6
-7
-6

Dew Point (°C)

-7
-7
-7
-7
-7
-7
-7
-7
-7
-8
-8
-8
-8
-7
-7
-7
-7
-7
-7
-7
-7
-7
-8
-8

Relative Humidity (%)

84
85
85
87
89
90
84
78
72
68
64
61
65
72
78
81
82
84
85
87
85
87
85
87

Pressure (mb)

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

Ozone (du)

311
307
304
304
304
305
304
303
302
298
294
291
289
288
286
285
284
283
283
283
283
283
282
281

Monday 24

Waxing Crescent 16%

11:30

18:53

Sun - Rise: 07:25, Set: 16:00, Transit: 11:42. Moon - Rise: 11:30, Set: 18:53. Civil Dark: 16:37 - 06:48. Nautical Dark: 17:17 - 06:08. Astro Dark: 17:56 - 05:29

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: 18/11/25 02:14:00. Forecast: 18/11/25 to 24/11/25. Timezone: UTC+1.00