Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 19

New Moon 0%

07:58

15:54

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 OK
22 Good
23 Good
00 OK
01 OK
02 OK
03 OK

Sun - Rise: 07:52, Set: 16:39, Transit: 12:15. Moon - Rise: 07:58, Set: 15:54. Civil Dark: 17:12 - 07:18. Nautical Dark: 17:49 - 06:41. Astro Dark: 18:25 - 06:05

Total Clouds (% Sky Obscured)

100
100
100
100
100
97
99
89
97
97
99
100
100
96
95
90
74
26
10
2
13
20
35
45

Low Clouds (% Sky Obscured)

100
99
98
85
100
93
98
85
94
94
97
100
100
89
86
76
70
26
10
0
0
0
0
45

Medium Clouds (% Sky Obscured)

100
100
100
100
100
63
38
42
40
83
41
57
46
47
41
10
0
0
0
0
11
16
35
25

High Clouds (% Sky Obscured)

100
100
100
100
55
70
55
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1

ISS Passover

Visibility (miles)

0
0
0
0
3
6
5
6
0
0
0
0
0
0
1
5
6
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

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

Precipitation Probability (%)

95
95
95
95
34
29
36
54
64
64
57
64
64
49
41
33
16
7
2
2
2
2
1
2

Precipitation Amount (mm)

1.1
0.9
2.2
1
0
0
0
0.3
0.3
0.4
0.2
0.4
0.4
0.1
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

14
13
10
11
11
14
15
14
15
15
18
17
15
19
17
16
16
15
14
13
10
8
6
3

Chance of Frost

Temperature (°C)

5
3
0
1
1
0
-1
-2
-2
-2
-3
-4
-4
-5
-8
-9
-10
-10
-10
-11
-11
-11
-11
-11

Feels Like (°C)

1
-2
-4
-4
-4
-6
-7
-8
-8
-8
-9
-11
-10
-13
-15
-16
-17
-16
-15
-15
-15
-14
-13
-13

Dew Point (°C)

5
3
0
0
-1
-2
-4
-4
-3
-3
-4
-6
-6
-7
-10
-12
-13
-14
-14
-14
-14
-14
-14
-13

Relative Humidity (%)

98
98
100
98
92
84
83
81
91
92
87
87
87
85
83
80
78
75
73
73
75
76
80
85

Pressure (mb)

988
989
990
991
991
991
992
992
992
992
993
994
995
997
1001
1004
1007
1009
1011
1013
1015
1016
1018
1019

Ozone (du)

318
321
325
325
337
344
350
358
370
367
360
372
387
382
384
379
377
373
368
366
358
357
359
357

Saturday 20

Waxing Crescent 1%

08:49

16:51

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: 07:52, Set: 16:39, Transit: 12:16. Moon - Rise: 08:49, Set: 16:51. Civil Dark: 17:13 - 07:19. Nautical Dark: 17:50 - 06:42. Astro Dark: 18:26 - 06:06

Total Clouds (% Sky Obscured)

90
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
90
97
87
67
87
99
100
100

Low Clouds (% Sky Obscured)

68
62
42
44
60
41
42
68
64
57
54
43
100
100
89
100
80
94
75
50
75
97
100
100

Medium Clouds (% Sky Obscured)

53
100
99
89
100
95
99
100
100
100
100
100
100
100
100
60
40
40
0
0
0
41
30
42

High Clouds (% Sky Obscured)

86
7
60
100
92
100
81
100
100
100
98
100
100
100
5
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
5
1
1
0
1
0
1
0
0
2
0
2
7
7
3
1
8

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

Precipitation Probability (%)

1
0
0
0
0
13
35
55
80
73
95
81
95
95
95
79
54
43
23
21
28
69
63
39

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.2
0.6
0.4
1.1
0.5
0.8
0.9
1.4
0.6
0.3
0.2
0
0
0
0.5
0.3
0

Wind Speed/Direction (mph)

2
3
4
6
7
8
9
11
13
15
16
16
15
14
13
11
11
12
14
15
15
17
18
19

Chance of Frost

Temperature (°C)

-11
-11
-10
-11
-10
-9
-7
-5
-4
-3
-2
-2
-2
-2
-2
-2
-1
0
1
1
0
-1
-1
-4

Feels Like (°C)

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

Dew Point (°C)

-13
-13
-13
-12
-12
-10
-9
-7
-5
-4
-4
-4
-3
-3
-4
-2
-2
-1
-0
-3
-4
-5
-3
-9

Relative Humidity (%)

85
85
81
86
85
87
85
85
90
91
91
89
91
87
86
98
94
96
93
78
73
72
86
69

Pressure (mb)

1019
1019
1018
1018
1017
1017
1016
1015
1012
1009
1007
1006
1005
1004
1003
1003
1002
1002
1002
1003
1003
1003
1005
1007

Ozone (du)

354
352
342
337
333
331
328
325
326
325
328
329
327
328
333
336
342
346
350
353
357
362
364
363

Sunday 21

Waxing Crescent 3%

09:32

17:54

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 Good
19 Good
20 Good
21 Good
22 Good
23 OK
00 Bad
01 Bad
02 Bad
03 Bad

Sun - Rise: 07:53, Set: 16:39, Transit: 12:16. Moon - Rise: 09:32, Set: 17:54. Civil Dark: 17:13 - 07:19. Nautical Dark: 17:50 - 06:42. Astro Dark: 18:26 - 06:06

Total Clouds (% Sky Obscured)

98
79
81
91
100
100
100
97
93
82
77
70
43
15
6
4
4
6
11
38
50
59
61
61

Low Clouds (% Sky Obscured)

96
58
60
72
100
100
100
88
80
71
67
67
43
15
5
2
2
2
10
32
40
44
47
51

Medium Clouds (% Sky Obscured)

0
0
0
5
45
45
45
22
3
0
0
0
0
0
0
0
0
2
0
0
15
16
18
22

High 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

ISS Passover

Visibility (miles)

8
3
2
3
0
4
4
1
1
9
6
5
7
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
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

48
51
54
60
67
67
59
55
30
15
12
18
8
6
2
1
2
1
1
0
0
7
11
13

Precipitation Amount (mm)

0.2
0.3
0.4
0.5
0.6
0.5
0.3
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

18
17
16
14
14
12
13
14
14
15
14
13
12
10
10
9
8
7
6
4
4
4
4
5

Chance of Frost

Temperature (°C)

-5
-6
-6
-6
-6
-6
-5
-5
-5
-6
-7
-8
-9
-10
-10
-11
-11
-11
-12
-12
-12
-12
-12
-12

Feels Like (°C)

-13
-13
-13
-13
-13
-12
-11
-11
-11
-13
-13
-14
-15
-15
-14
-14
-15
-14
-15
-15
-14
-14
-14
-14

Dew Point (°C)

-11
-9
-9
-9
-8
-9
-8
-7
-7
-9
-9
-11
-12
-13
-13
-13
-13
-14
-14
-14
-14
-14
-14
-14

Relative Humidity (%)

63
74
79
80
89
79
79
84
85
77
82
82
80
80
78
81
83
81
83
83
83
85
85
83

Pressure (mb)

1008
1010
1011
1012
1013
1014
1015
1016
1017
1018
1020
1022
1024
1026
1027
1029
1030
1031
1031
1032
1032
1032
1033
1033

Ozone (du)

356
355
362
367
369
366
370
372
374
370
364
360
352
349
349
354
357
354
360
366
366
368
374
375

Monday 22

Waxing Crescent 7%

10:06

19:03

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: 07:53, Set: 16:40, Transit: 12:17. Moon - Rise: 10:06, Set: 19:03. Civil Dark: 17:14 - 07:20. Nautical Dark: 17:51 - 06:42. Astro Dark: 18:27 - 06:07

Total Clouds (% Sky Obscured)

55
52
51
66
87
100
99
99
98
97
96
93
89
82
76
84
93
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

40
30
24
30
44
50
63
80
97
96
94
87
61
44
12
16
6
12
42
64
87
90
94
97

Medium Clouds (% Sky Obscured)

23
26
27
35
47
55
51
46
46
35
51
30
35
32
30
47
77
100
100
100
100
100
100
99

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
16
31
43
54
90
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
5
2
0
0
0
0
2
7
9
9
9
9
9
9
9
9
9
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
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Snow
Snow
Snow
Snow

Precipitation Probability (%)

14
13
11
23
25
28
26
33
34
29
36
32
29
22
9
7
5
0
2
18
51
61
71
71

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.3
0.3
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-12
-11
-11
-10
-10
-9
-7
-5
-3
-1
-1
-1
-1
-2
-3
-4
-4
-4
-4
-5
-5
-5
-5
-5

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
83
83
83
87
88
90
90
91
87
84
86
86
92
92
90
87
89
87
89
90
96
96
96

Pressure (mb)

1033
1033
1032
1032
1032
1031
1031
1030
1029
1028
1027
1028
1028
1028
1028
1029
1028
1028
1027
1027
1026
1025
1025
1024

Ozone (du)

363
355
352
354
358
362
365
366
361
359
356
355
351
342
337
331
330
330
326
327
326
323
319
318

Tuesday 23

Waxing Crescent 13%

10:33

20:14

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: 07:54, Set: 16:41, Transit: 12:17. Moon - Rise: 10:33, Set: 20:14. Civil Dark: 17:14 - 07:20. Nautical Dark: 17:51 - 06:43. Astro Dark: 18:27 - 06:07

Total Clouds (% Sky Obscured)

100
100
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)

97
97
97
98
99
100
98
96
94
92
91
90
93
97
100
100
100
100
100
100
100
99
98
98

Medium Clouds (% Sky Obscured)

97
94
92
92
93
94
57
58
60
60
55
55
55
50
50
43
36
30
22
17
6
9
13
17

High Clouds (% Sky Obscured)

90
75
61
39
20
0
0
0
0
0
0
0
0
0
0
2
4
7
37
66
95
95
95
95

ISS Passover

Visibility (miles)

0
0
0
0
0
0
0
0
0
0
0
0
1
3
6
5
7
8
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
None
Snow
Snow
Snow
Snow
Snow
Snow
Snow
None
Snow
None
None
None
None
None
None
None
None

Precipitation Probability (%)

82
85
74
72
58
47
36
42
46
56
63
68
62
52
43
58
43
22
20
19
18
19
16
5

Precipitation Amount (mm)

0.4
0.5
0.3
0.3
0.2
0.1
0
0.1
0.2
0.2
0.3
0.3
0.3
0.2
0
0.2
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

6
7
7
7
7
7
7
7
7
7
7
8
7
7
6
6
6
6
6
6
6
7
7
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
98
98
96
98
98
96
98
100
100
100
100
96
96
94
94
92
92
91
91
94
94
92
91

Pressure (mb)

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

Ozone (du)

316
314
311
312
313
313
315
318
322
328
334
334
334
334
335
333
330
327
324
323
323
323
323
324

Wednesday 24

Waxing Crescent 21%

10:56

21:24

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: 07:54, Set: 16:41, Transit: 12:18. Moon - Rise: 10:56, Set: 21:24. Civil Dark: 17:15 - 07:20. Nautical Dark: 17:52 - 06:43. Astro Dark: 18:28 - 06:08

Total Clouds (% Sky Obscured)

93
85
76
79
82
83
80
78
78
82
85
87
91
95
100
100
100
100
97
93
89
71
56
43

Low Clouds (% Sky Obscured)

78
60
42
48
52
61
49
37
26
28
30
29
43
55
62
58
58
59
57
51
50
50
45
40

Medium Clouds (% Sky Obscured)

13
8
1
11
20
28
32
42
53
57
58
55
56
46
28
49
73
100
92
83
75
62
52
40

High Clouds (% Sky Obscured)

71
42
13
9
5
0
1
1
2
16
34
50
68
84
100
92
89
91
94
91
80
71
56
43

ISS Passover

Visibility (miles)

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

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 (%)

6
6
7
6
6
2
4
4
0
1
1
0
1
6
11
19
22
21
19
20
22
27
33
32

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-2
1
3
5
-8
-8
-8
-10
-11
-12
-7
-8
-9
-9
-10
-9
-11
-11
-12
-12
-13
-13
-12
-12

Dew Point (°C)

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

Relative Humidity (%)

89
91
89
91
89
87
86
84
82
81
84
85
89
90
90
92
92
92
92
92
94
94
96
96

Pressure (mb)

1021
1023
1024
1025
1025
1026
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1026
1026
1026

Ozone (du)

324
321
317
313
312
310
309
308
307
305
303
301
299
299
299
299
299
300
300
302
304
307
307
307

Thursday 25

Waxing Crescent 30%

11:15

22:35

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: 07:54, Set: 16:42, Transit: 12:18. Moon - Rise: 11:15, Set: 22:35. Civil Dark: 17:16 - 07:21. Nautical Dark: 17:53 - 06:44. Astro Dark: 18:28 - 06:08

Total Clouds (% Sky Obscured)

60
55
55
73
77
80
81
90
96
98
99
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

30
25
20
25
30
25
30
35
40
30
25
25
25
25
25
38
54
64
76
87
99

Medium Clouds (% Sky Obscured)

28
19
9
15
18
20
13
7
2
28
54
80
87
93
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

48
39
37
37
40
32
54
75
95
96
97
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

4
6
7
9
6
3
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

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Snow
Light Rain
Light Rain
Moderate Rain
Moderate Rain
Moderate Rain

Precipitation Probability (%)

28
24
12
12
10
3
8
7
0
0
0
0
0
1
3
63
93
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.6
1
2.6
4
5.5

Wind Speed/Direction (mph)

6
4
3
3
3
4
4
5
5
6
7
8
8
9
10
12
13
14
15
15
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-13
-12
-13
-12
-11
-10
-9
-7
-7
-6
-5
-5
-5
-5
-4
-4
-5
-6
-6
-6
-6

Dew Point (°C)

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

Relative Humidity (%)

98
98
98
100
100
98
100
100
100
100
100
100
100
100
100
100
98
98
100
100
98

Pressure (mb)

1025
1025
1025
1025
1025
1025
1025
1024
1023
1022
1021
1020
1019
1018
1017
1016
1014
1011
1009
1006
1004

Ozone (du)

307
308
308
308
307
305
303
299
295
291
289
287
285
284
283
281
284
286
288
295
301

Forecast for Glen Echo, Canada (44.94,-79.51)

Generated: 19/12/25 03:55:03. Forecast: 19/12/25 to 25/12/25. Timezone: UTC-5.00