Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 5

Waning Gibbous 91%

19:17

10:25

04 OK
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 OK
01 Bad
02 Bad
03 OK

Sun - Rise: 08:45, Set: 16:37, Transit: 12:41. Moon - Rise: 19:17, Set: 10:25. Civil Dark: 17:18 - 08:04. Nautical Dark: 18:01 - 07:20. Astro Dark: 18:43 - 06:39

Total Clouds (% Sky Obscured)

23
30
35
64
99
100
93
100
98
98
90
55
61
76
69
73
69
54
43
36
32
42
53
25

Low Clouds (% Sky Obscured)

23
30
33
64
69
69
73
81
82
96
87
38
43
51
43
46
44
45
37
34
31
39
51
4

Medium Clouds (% Sky Obscured)

2
19
35
64
97
100
88
100
93
88
2
15
19
62
50
55
50
11
0
0
0
0
2
14

High Clouds (% Sky Obscured)

23
0
0
0
0
0
0
0
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
0
0
5
9
9
9
9
9
9
9
8
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
Snow
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

9
13
12
9
33
60
42
25
28
17
7
5
12
10
16
21
15
6
3
2
2
3
2
1

Precipitation Amount (mm)

0
0
0
0
0
0.3
0.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
87
91
89
92
98
98
94
94
92
91
84
87
91
92
92
91
89
87
87
91
89
89
89

Pressure (mb)

1008
1008
1008
1008
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1010
1010
1011
1011
1012
1012
1013
1013
1013

Ozone (du)

399
402
404
407
407
402
394
400
403
407
404
399
395
399
404
409
412
416
420
416
415
414
412
406

Tuesday 6

Waning Gibbous 83%

20:44

10:41

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
03 Bad

Sun - Rise: 08:44, Set: 16:38, Transit: 12:41. Moon - Rise: 20:44, Set: 10:41. Civil Dark: 17:19 - 08:04. Nautical Dark: 18:03 - 07:20. Astro Dark: 18:44 - 06:39

Total Clouds (% Sky Obscured)

40
65
48
51
50
82
94
74
84
60
61
71
98
80
76
82
88
90
86
90
100
100
100
100

Low Clouds (% Sky Obscured)

3
26
34
51
47
42
31
31
67
46
34
34
65
47
55
59
81
85
80
68
34
31
69
78

Medium Clouds (% Sky Obscured)

22
45
30
0
6
75
89
56
55
60
57
55
95
64
59
76
47
19
17
34
100
100
100
100

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
4
0
0
4
49
100
44
69

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
12
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
Snow
Snow
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
2
3
1
2
2
1
0
1
2
0
10
46
71
39
15
3
2
1
3
7
13

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.4
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

4
4
4
4
4
5
6
6
7
8
8
8
9
10
10
10
11
13
14
14
15
16
16
17

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
89
89
89
89
89
87
86
86
84
83
86
89
91
92
92
87
84
84
86
87
87
87
86

Pressure (mb)

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

Ozone (du)

403
403
397
398
398
399
398
395
392
387
385
386
387
391
390
386
387
388
391
388
385
388
389
392

Wednesday 7

Waning Gibbous 83%

22:05

10:53

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 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad

Sun - Rise: 08:44, Set: 16:40, Transit: 12:42. Moon - Rise: 22:05, Set: 10:53. Civil Dark: 17:20 - 08:03. Nautical Dark: 18:04 - 07:20. Astro Dark: 18:45 - 06:38

Total Clouds (% Sky Obscured)

100
100
100
100
100
98
96
99
93
96
78
78
78
51
57
28
17
26
83
60
91
100
100
100

Low Clouds (% Sky Obscured)

82
75
98
94
92
93
94
99
93
96
78
78
78
51
57
28
17
10
10
40
70
79
74
66

Medium Clouds (% Sky Obscured)

100
100
100
100
100
95
77
30
35
0
0
16
25
4
0
0
1
9
56
21
56
55
61
66

High Clouds (% Sky Obscured)

58
11
0
0
5
2
2
0
0
0
0
0
24
25
30
25
15
26
38
2
24
36
88
100

ISS Passover

Visibility (miles)

9
1
1
6
9
3
0
0
0
0
9
4
0
0
0
0
1
2
3
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
Snow
Snow
Snow
Snow
Snow
Snow
None
Snow
None
None
Snow
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

34
64
61
80
64
66
62
51
59
41
39
57
36
17
3
0
0
0
0
0
0
8
13
20

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

18
19
21
22
22
22
21
20
20
18
16
14
12
8
5
4
4
3
3
4
5
6
7
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
89
94
87
86
89
94
96
96
98
94
96
100
98
100
98
98
98
96
94
94
92
91
91

Pressure (mb)

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

Ozone (du)

392
391
394
393
397
399
399
399
399
399
392
384
379
381
377
348
340
333
324
322
319
318
320
322

Thursday 8

Waning Gibbous 74%

23:22

11:04

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
03 Bad

Sun - Rise: 08:43, Set: 16:41, Transit: 12:42. Moon - Rise: 23:22, Set: 11:04. Civil Dark: 17:21 - 08:03. Nautical Dark: 18:05 - 07:19. Astro Dark: 18:46 - 06:38

Total Clouds (% Sky Obscured)

100
99
99
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

76
84
94
96
98
100
98
96
95
90
85
80
79
81
81
78
77
78
84
91
100
100
100
100

Medium Clouds (% Sky Obscured)

99
99
91
89
82
67
11
4
0
8
17
29
70
79
69
99
100
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

82
57
3
43
10
31
26
50
92
95
90
84
89
94
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
2
0
9
9
7
0
0
0
0
0
0
0
0
0
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
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

28
30
31
36
39
47
54
42
29
12
24
21
2
1
0
0
0
1
22
64
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0.1
0.2
0.1
0
0
0
0
0
0
0
0
0
0
0
0.3
0.9
1.3
1.4
2.3

Wind Speed/Direction (mph)

9
10
11
12
12
12
12
13
13
14
13
12
11
11
9
9
8
8
9
10
11
13
15
16

Chance of Frost

Temperature (°C)

-1
-1
0
1
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
98
98
96
92
92
98
100
98
100
98
98
100
98
98
100
100
100
100
100
100
98
98
100

Pressure (mb)

1009
1008
1008
1007
1007
1006
1006
1005
1005
1005
1004
1004
1004
1004
1003
1003
1002
1001
1000
998
997
994
992
990

Ozone (du)

322
323
323
323
325
332
335
332
337
337
332
329
328
327
328
327
327
326
326
329
329
327
328
329

Friday 9

Waning Gibbous 64%

00:37

11:13

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
03 Bad

Sun - Rise: 08:43, Set: 16:42, Transit: 12:42. Moon - Rise: 00:37, Set: 11:13. Civil Dark: 17:23 - 08:02. Nautical Dark: 18:06 - 07:19. Astro Dark: 18:47 - 06:38

Total Clouds (% Sky Obscured)

98
97
96
97
70
100
62
98
96
97
99
100
98
97
95
94
94
94
96
98
99
99
99
99

Low Clouds (% Sky Obscured)

90
79
69
76
64
100
62
92
88
89
91
92
89
85
83
90
89
87
88
91
92
93
93
92

Medium Clouds (% Sky Obscured)

98
80
93
85
38
40
43
48
92
94
97
100
96
93
90
93
94
94
96
98
99
99
98
97

High Clouds (% Sky Obscured)

68
37
5
37
63
95
62
32
0
37
68
96
65
37
5
10
10
15
15
20
20
25
35
45

ISS Passover

Visibility (miles)

0
0
0
5
9
9
9
9
9
9
7
4
0
0
0
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
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

95
95
56
46
44
46
56
62
68
74
85
67
88
83
72
86
82
79
79
78
76
75
75
76

Precipitation Amount (mm)

1.7
0.7
0
0
0
0
0.3
0.3
0.3
0.4
0.5
0
0.6
0.6
0.5
0.5
0.4
0.4
0.4
0.3
0.3
0.3
0.4
0.4

Wind Speed/Direction (mph)

16
15
15
13
13
14
17
17
16
17
16
14
15
15
14
14
15
13
12
10
10
11
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
100
98
96
93
91
88
82
80
86
94
96
96
96
96
96
96
96
98
96
98
98
98
98

Pressure (mb)

988
986
985
985
984
984
983
982
982
981
981
981
981
982
983
984
985
986
986
988
989
990
991
992

Ozone (du)

330
334
344
352
357
362
363
367
377
380
376
381
384
386
388
389
392
395
398
397
396
396
397
399

Saturday 10

Third Quarter 55%

01:51

11:23

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
03 Bad

Sun - Rise: 08:42, Set: 16:44, Transit: 12:43. Moon - Rise: 01:51, Set: 11:23. Civil Dark: 17:24 - 08:02. Nautical Dark: 18:07 - 07:18. Astro Dark: 18:48 - 06:37

Total Clouds (% Sky Obscured)

99
98
98
98
98
98
98
99
100
99
98
97
95
94
92
86
81
71
73
78
83
82
77
77

Low Clouds (% Sky Obscured)

94
94
94
94
92
92
94
97
100
98
96
94
90
83
80
77
76
71
73
78
83
82
77
77

Medium Clouds (% Sky Obscured)

96
95
93
88
84
77
82
88
93
64
39
17
17
18
17
9
4
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

40
40
75
72
64
42
17
8
1
1
0
0
0
0
0
0
0
0
9
19
28
28
29
29

ISS Passover

Visibility (miles)

0
0
0
0
3
5
8
5
3
0
3
6
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

Very Light Rain
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 (%)

67
55
42
35
28
20
20
18
18
18
20
20
18
15
10
10
11
8
7
6
1
2
2
0

Precipitation Amount (mm)

0.3
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
96
98
98
96
96
96
96
96
96
94
91
88
86
86
86
86
88
89
91
93
94
94
94

Pressure (mb)

993
995
996
997
998
1000
1001
1002
1004
1005
1006
1007
1009
1010
1011
1012
1013
1013
1014
1014
1015
1015
1015
1015

Ozone (du)

401
397
393
389
389
388
388
386
385
383
382
381
379
376
373
370
366
362
357
355
352
349
347
345

Sunday 11

Waning Crescent 45%

03:05

11:34

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

Sun - Rise: 08:41, Set: 16:45, Transit: 12:43. Moon - Rise: 03:05, Set: 11:34. Civil Dark: 17:25 - 08:01. Nautical Dark: 18:09 - 07:18. Astro Dark: 18:50 - 06:37

Total Clouds (% Sky Obscured)

86
93
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
97
94
91

Low Clouds (% Sky Obscured)

81
84
86
78
73
64
70
74
74
70
65
64
69
80
88
87
84
78
81
85
89

Medium Clouds (% Sky Obscured)

21
42
54
62
62
60
64
70
77
74
72
71
84
92
100
100
100
100
76
53
33

High Clouds (% Sky Obscured)

51
74
96
96
98
100
100
100
100
100
100
100
100
100
100
100
100
100
73
50
50

ISS Passover

Visibility (miles)

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

Fog (%)

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

Precipitation Probability (%)

1
4
0
1
3
0
16
32
48
85
95
95
95
95
95
95
95
73
71
60
37

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.2
0.5
0.9
1.6
1.6
1.4
1.1
0.9
0.6
0.3
0.3
0.2
0

Wind Speed/Direction (mph)

6
6
8
9
10
11
12
14
15
16
17
17
19
18
18
19
17
16
15
14
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
94
94
94
94
93
93
91
86
85
83
83
81
82
83
83
88
93
96
96
94

Pressure (mb)

1015
1014
1014
1013
1013
1012
1011
1010
1008
1007
1005
1004
1002
1001
1000
999
999
998
998
998
998

Ozone (du)

343
340
337
335
331
327
324
322
319
317
316
316
315
312
310
308
309
311
313
315
317

Forecast for Frankhuis, Gemeente Zwolle, Netherlands (52.52,6.08)

Generated: 05/01/26 04:48:12. Forecast: 05/01/26 to 11/01/26. Timezone: UTC+1.00