Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 27

First Quarter 49%

11:49

00:50

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

Sun - Rise: 08:22, Set: 16:23, Transit: 12:22. Moon - Rise: 11:49, Set: 00:50. Civil Dark: 17:02 - 07:43. Nautical Dark: 17:44 - 07:01. Astro Dark: 18:24 - 06:21

Total Clouds (% Sky Obscured)

42
33
35
37
6
21
2
2
5
4
10
85
89
79
86
86
83
90
53
30
3
2
2
3

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
65
84
79
80
81
75
82
53
30
1
1
0
0

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
0
0

High Clouds (% Sky Obscured)

7
25
29
27
6
21
2
2
5
4
10
56
29
2
1
0
1
3
3
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
9
9
9
9
9
9
9

Fog (%)

5
0
0
0
0
0
0
0
0
0
0
0
3
4
4
2
0
2
15
21
1
2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

51
49
47
47
50
55
61
67
71
72
75
79
86
92
96
92
91
84
84
91
91
91
89
87

Pressure (mb)

1032
1033
1033
1032
1031
1030
1030
1030
1031
1030
1030
1031
1031
1031
1031
1031
1031
1032
1032
1031
1031
1032
1032
1032

Ozone (du)

293
293
294
294
295
295
295
295
296
297
298
298
298
298
297
298
298
297
298
298
297
295
293
294

Sunday 28

Waxing Gibbous 61%

12:02

02:13

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 Good

Sun - Rise: 08:22, Set: 16:24, Transit: 12:23. Moon - Rise: 12:02, Set: 02:13. Civil Dark: 17:02 - 07:43. Nautical Dark: 17:45 - 07:01. Astro Dark: 18:24 - 06:21

Total Clouds (% Sky Obscured)

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

Low Clouds (% Sky Obscured)

1
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)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
2
1
1
2
2
0
0
0
0
0
2
2
2
1
2
2
2
2
4

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)

3
3
3
3
3
3
2
2
2
2
2
1
2
2
1
2
2
2
2
1
2
2
1
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-6
-7
-7
-8
-9
-8
-7
-7
-8
-10
-11
-12
-14
-15
-15
-16
-17
-17
-17
-16
-16
-16
-17
-18

Relative Humidity (%)

86
76
63
52
46
49
56
60
61
58
55
52
49
48
46
43
43
43
41
41
41
40
39
37

Pressure (mb)

1032
1032
1032
1032
1031
1031
1031
1031
1030
1030
1030
1030
1030
1030
1029
1029
1028
1028
1027
1026
1026
1025
1025
1025

Ozone (du)

295
295
292
290
288
284
279
277
275
274
275
276
276
277
279
280
281
282
281
282
284
286
286
285

Monday 29

Waxing Gibbous 72%

12:18

03:40

09 Good
10 Good
11 Good
12 Good
13 Good
14 OK
15 OK
16 OK
17 OK
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: 08:22, Set: 16:25, Transit: 12:23. Moon - Rise: 12:18, Set: 03:40. Civil Dark: 17:03 - 07:43. Nautical Dark: 17:45 - 07:01. Astro Dark: 18:25 - 06:21

Total Clouds (% Sky Obscured)

3
4
3
5
5
24
35
47
48
59
95
96
85
100
98
58
67
84
92
87
86
80
60
56

Low Clouds (% Sky Obscured)

0
0
0
0
0
24
35
47
48
59
91
93
73
100
97
58
67
83
87
79
78
70
60
56

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
0
0

High Clouds (% Sky Obscured)

2
2
3
5
4
6
3
3
0
0
0
0
0
0
0
0
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
9
9
9
8
3
7
7

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
2
1
0
3
4
5
1
2
12
21
12
14
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-18
-17
-17
-16
-15
-13
-11
-11
-11
-10
-7
-4
-2
-3
-3
-3
-2
-2
-2
-4
-3
-3
-3
-3

Relative Humidity (%)

35
34
30
29
31
36
42
46
49
53
63
78
87
83
80
77
87
91
84
78
83
87
89
94

Pressure (mb)

1025
1025
1025
1024
1023
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1023
1023
1024
1024
1025
1025
1026

Ozone (du)

287
290
292
291
292
292
295
297
296
295
293
293
290
290
294
296
296
294
288
283
280
280
284
292

Tuesday 30

Waxing Gibbous 82%

12:39

05:11

09 Bad
10 OK
11 OK
12 OK
13 OK
14 Good
15 Good
16 Good
17 OK
18 OK
19 OK
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: 08:22, Set: 16:25, Transit: 12:24. Moon - Rise: 12:39, Set: 05:11. Civil Dark: 17:04 - 07:43. Nautical Dark: 17:46 - 07:01. Astro Dark: 18:26 - 06:21

Total Clouds (% Sky Obscured)

42
36
34
32
22
12
3
13
24
37
45
46
89
74
76
92
93
93
92
94
97
99
97
96

Low Clouds (% Sky Obscured)

42
36
34
32
22
12
1
13
24
37
45
46
77
74
76
75
77
80
82
86
90
93
92
90

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
7
6
12
20
25
33
28
18
9
18
59
75
77
22

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
4
9
9
8
2
0
1
2
0
0
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
None
Snow
Snow
Snow

Precipitation Probability (%)

2
0
0
0
0
0
0
0
0
0
1
4
6
13
17
19
16
24
22
27
42
61
95
91

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
1
0.7

Wind Speed/Direction (mph)

4
4
5
5
6
6
6
4
3
3
3
3
3
3
3
4
4
5
7
8
9
11
13
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-4
-3
-3
-3
-3
-3
-3
-3
-3
-4
-4
-4
-4
-6
-5
-5
-5
-6
-6
-6
-7
-8
-8
-7

Dew Point (°C)

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

Relative Humidity (%)

89
83
71
62
54
51
54
62
68
68
68
71
71
73
75
79
84
89
91
91
91
94
96
98

Pressure (mb)

1027
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1027
1027
1026
1026
1025
1024
1023
1022
1021
1020
1019

Ozone (du)

298
301
303
303
305
309
314
318
325
328
336
343
353
358
361
362
358
353
346
344
344
342
342
343

Wednesday 31

Waxing Gibbous 91%

13:08

06:40

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 Bad
06 Bad
07 Bad
08 Bad

Sun - Rise: 08:22, Set: 16:26, Transit: 12:24. Moon - Rise: 13:08, Set: 06:40. Civil Dark: 17:05 - 07:43. Nautical Dark: 17:47 - 07:01. Astro Dark: 18:27 - 06:21

Total Clouds (% Sky Obscured)

94
95
97
98
97
97
96
91
85
85
80
75
59
52
57
58
61
65
68
72
75
75
82
89

Low Clouds (% Sky Obscured)

88
91
93
96
90
83
77
78
79
80
79
75
59
52
57
58
61
65
68
72
75
75
82
88

Medium Clouds (% Sky Obscured)

19
14
9
5
32
25
36
23
15
3
0
0
0
0
2
3
2
1
0
1
3
4
4
5

High Clouds (% Sky Obscured)

0
1
1
2
1
1
1
1
2
10
4
2
0
1
1
1
2
5
7
6
4
2
4
6

ISS Passover

Visibility (miles)

0
0
0
0
0
0
0
1
9
6
7
7
6
9
9
7
9
9
9
9
6
4
2
1

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
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

89
85
65
91
95
84
52
35
28
28
23
19
17
13
10
10
21
16
8
7
6
6
20
28

Precipitation Amount (mm)

0.6
0.7
0.3
0.6
1.5
0.5
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

13
13
12
12
10
12
8
9
6
3
3
3
2
3
3
4
4
5
6
6
6
7
8
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-0
1
1
0
1
1
-0
-1
-3
-5
-6
-6
-6
-6
-6
-6
-6
-6
-6
-6
-5
-5
-4
-3

Relative Humidity (%)

98
100
98
96
100
98
98
94
94
96
96
94
94
94
94
94
92
92
90
90
92
94
96
96

Pressure (mb)

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

Ozone (du)

340
338
337
333
330
329
325
325
325
324
322
320
319
320
320
323
322
319
316
313
311
309
307
307

Thursday 1

Waxing Gibbous 97%

13:51

07:57

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 Bad
06 Bad
07 Bad
08 Bad

Sun - Rise: 08:22, Set: 16:27, Transit: 12:25. Moon - Rise: 13:51, Set: 07:57. Civil Dark: 17:06 - 07:43. Nautical Dark: 17:48 - 07:01. Astro Dark: 18:28 - 06:21

Total Clouds (% Sky Obscured)

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

Low Clouds (% Sky Obscured)

93
95
98
100
96
93
90
91
92
92
93
94
94
92
90
88
89
92
95
97
99
100
100
100

Medium Clouds (% Sky Obscured)

5
35
62
91
85
78
68
73
78
83
90
95
100
99
97
96
98
99
100
87
77
61
54
46

High Clouds (% Sky Obscured)

8
16
22
30
40
52
66
63
60
57
72
84
94
93
86
76
75
71
61
36
18
0
0
0

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

34
37
40
42
46
51
57
55
55
60
71
83
94
79
66
56
81
95
95
95
86
68
55
45

Precipitation Amount (mm)

0
0
0.1
0.1
0.2
0.2
0.3
0.2
0.2
0.3
0.4
0.5
0.8
0.5
0.3
0.2
0.5
0.8
1.1
0.8
0.6
0.4
0.2
0.1

Wind Speed/Direction (mph)

10
11
13
14
15
16
16
16
17
17
18
17
16
16
17
18
19
17
15
15
15
15
15
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-7
-7
-7
-7
-7
-5
-6
-6
-7
-7
-7
-6
-6
-6
-6
-6
-6
-6
-7
-7
-7
-7
-7
-7

Dew Point (°C)

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

Relative Humidity (%)

96
94
96
96
98
96
98
98
98
98
98
96
96
94
96
96
96
96
92
92
92
92
91
92

Pressure (mb)

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

Ozone (du)

307
307
306
304
303
312
321
331
350
370
390
399
408
418
412
406
401
398
396
394
388
382
376
381

Friday 2

Waxing Gibbous 100%

14:53

08:55

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 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 08:21, Set: 16:29, Transit: 12:25. Moon - Rise: 14:53, Set: 08:55. Civil Dark: 17:07 - 07:43. Nautical Dark: 17:49 - 07:01. Astro Dark: 18:29 - 06:21

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
99
97
96
93
92
90
90
89
88
83
77
70
77
85
93

Low Clouds (% Sky Obscured)

100
100
99
97
93
86
82
81
82
83
83
83
85
83
80
76
72
68
65
71
75
79

Medium Clouds (% Sky Obscured)

38
43
50
49
68
84
97
76
55
35
23
16
7
12
19
29
21
15
6
31
56
83

High Clouds (% Sky Obscured)

0
1
1
2
1
1
0
0
0
0
0
0
0
0
0
0
1
2
3
2
6
7

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

40
38
40
45
50
58
65
56
52
51
44
43
46
37
30
17
23
28
31
28
33
37

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

14
14
14
14
14
13
12
12
11
10
9
8
7
6
4
3
3
3
4
5
6
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-7
-8
-8
-8
-9
-8
-7
-8
-8
-8
-8
-9
-9
-9
-8
-8
-7
-13
-12
-12
-12
-11

Dew Point (°C)

-2
-3
-3
-2
-2
-3
-3
-3
-4
-5
-5
-5
-6
-6
-7
-8
-10
-10
-8
-7
-6
-5

Relative Humidity (%)

91
89
91
92
92
92
92
92
92
92
92
94
94
96
94
94
92
94
94
96
94
96

Pressure (mb)

1005
1006
1007
1007
1007
1008
1009
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1018
1018
1019
1018
1018

Ozone (du)

387
392
390
388
386
389
391
394
390
387
383
375
367
358
356
354
352
347
341
336
329
323

Forecast for Fulda, Regierungsbezirk Kassel, Germany (50.56,9.68)

Generated: 27/12/25 09:58:31. Forecast: 27/12/25 to 02/01/26. Timezone: UTC+1.00