Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 16

Waning Crescent 6%

05:54

14:31

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
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 07:51, Set: 16:38, Transit: 12:14. Moon - Rise: 05:54, Set: 14:31. Civil Dark: 17:11 - 07:17. Nautical Dark: 17:48 - 06:40. Astro Dark: 18:24 - 06:04

Total Clouds (% Sky Obscured)

100
100
100
99
90
82
100
100
100
95
83
88
100
100
100
100
100
98
100
100
87
99
83
59

Low Clouds (% Sky Obscured)

75
66
58
51
39
44
24
22
36
51
62
81
100
100
100
100
100
92
100
100
73
99
75
59

Medium Clouds (% Sky Obscured)

100
97
96
85
84
78
100
100
100
50
13
20
87
92
100
87
35
23
13
3
0
0
0
0

High Clouds (% Sky Obscured)

100
100
61
80
75
52
90
94
100
92
71
35
100
100
100
100
95
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

8
9
9
9
9
9
9
9
9
9
9
9
9
9
8
0
0
0
5
4
9
4
1
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
Snow
Snow
Snow
Very Light Rain
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
7
14
24
32
17
4
0
0
1
5
23
47
54
60
55
34
19
25
23
2
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
92
87
85
82
82
84
86
84
84
84
86
88
93
98
98
98
100
93
86
81
84
91
86

Pressure (mb)

1012
1010
1010
1009
1008
1006
1005
1004
1003
1003
1002
1002
1002
1002
1002
1002
1003
1004
1005
1006
1007
1009
1012
1014

Ozone (du)

271
268
266
265
264
267
269
269
272
274
280
287
292
295
300
305
309
313
321
329
336
343
344
335

Wednesday 17

Waning Crescent 2%

06:58

15:08

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
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 07:51, Set: 16:38, Transit: 12:15. Moon - Rise: 06:58, Set: 15:08. Civil Dark: 17:11 - 07:18. Nautical Dark: 17:49 - 06:40. Astro Dark: 18:24 - 06:05

Total Clouds (% Sky Obscured)

54
47
41
63
54
91
75
81
100
85
84
100
94
93
92
92
94
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

54
47
41
47
51
73
43
41
32
61
49
63
71
80
80
80
77
100
100
83
70
68
25
30

Medium Clouds (% Sky Obscured)

10
0
0
6
22
20
65
67
48
45
35
34
33
39
40
40
6
53
56
54
38
56
76
79

High Clouds (% Sky Obscured)

10
21
0
62
12
85
75
81
100
85
84
100
94
93
86
72
72
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
7
8
7
9
8
9
9
9
9
9
9
9
9
9
9
9
8
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
1
8
27
19
5
32
36
45

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)

7
6
4
2
3
4
5
6
7
8
8
9
10
10
11
12
13
13
13
14
14
13
13
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
89
89
89
87
89
89
90
92
92
89
89
91
91
91
91
92
94
96
98
100
98
94
93

Pressure (mb)

1015
1017
1018
1019
1019
1019
1019
1019
1018
1018
1017
1016
1015
1014
1013
1012
1011
1011
1010
1008
1007
1006
1005
1004

Ozone (du)

322
320
317
317
318
316
317
317
316
318
318
319
319
320
319
318
315
313
313
312
312
314
313
311

Thursday 18

Waning Crescent 0%

07:58

15:54

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
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad

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

Low Clouds (% Sky Obscured)

88
80
62
24
90
82
87
89
88
91
100
100
94
100
93
100
100
100
100
99
99
100
100
96

Medium Clouds (% Sky Obscured)

85
84
82
100
100
100
100
100
100
100
100
100
98
99
40
18
73
71
60
0
8
23
31
35

High Clouds (% Sky Obscured)

99
100
100
100
100
100
100
100
100
100
100
100
100
100
0
0
0
0
0
0
0
0
0
2

ISS Passover

Visibility (miles)

9
9
9
9
8
9
9
8
0
0
0
1
8
9
9
9
0
0
3
0
0
5
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
Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
Snow
Snow
Light Rain
Snow
Snow
Snow
Snow
Snow
Snow

Precipitation Probability (%)

49
38
29
80
79
95
95
95
95
95
95
75
56
29
23
39
70
83
53
71
41
36
52
60

Precipitation Amount (mm)

0
0
0
0.7
0.2
0.3
0.5
0.4
0.7
1.1
1
0.2
0
0
0
0.1
0.5
0.7
0.1
0.5
0.1
0.1
0.3
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-2
-2
-2
-1
-1
-2
-2
-2
-2
-1
-0
-1
0
0
-1
-1
-1
-3
-5
-6
-9
-10
-12
-12

Dew Point (°C)

2
2
2
3
3
3
4
4
4
4
4
4
4
3
2
2
2
1
-2
-3
-4
-7
-7
-8

Relative Humidity (%)

91
89
89
93
91
89
98
98
100
100
100
100
96
91
88
89
98
100
91
91
89
79
85
92

Pressure (mb)

1003
1003
1002
1000
999
997
996
994
992
992
991
991
990
990
990
990
991
991
992
992
992
993
995
995

Ozone (du)

314
319
320
325
330
330
329
328
327
334
341
347
357
361
369
376
378
379
376
376
379
384
383
389

Friday 19

New Moon 1%

08:49

16:51

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

Sun - Rise: 07:52, Set: 16:39, Transit: 12:16. Moon - Rise: 08:49, Set: 16:51. Civil Dark: 17:12 - 07:19. Nautical Dark: 17:49 - 06:42. Astro Dark: 18:25 - 06:06

Total Clouds (% Sky Obscured)

97
96
95
95
94
76
67
38
25
24
24
39
68
88
90
94
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

93
89
88
87
85
71
67
38
18
9
1
0
1
1
30
60
86
72
81
71
78
86
94
95

Medium Clouds (% Sky Obscured)

36
37
37
37
36
24
12
0
7
14
21
32
68
88
65
81
87
90
100
100
100
100
100
98

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
12
18
50
72
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

0
0
0
1
2
9
9
9
9
9
9
9
9
9
9
9
9
9
9
3
1
1
1
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

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

Precipitation Probability (%)

53
44
36
26
15
15
14
6
7
8
1
4
6
1
6
7
4
18
23
48
50
31
30
95

Precipitation Amount (mm)

0.2
0.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.1
0.2
0
0
0.6

Wind Speed/Direction (mph)

15
15
15
15
14
14
13
12
10
8
6
5
4
3
3
3
4
6
7
8
9
11
12
13

Chance of Frost

Temperature (°C)

-8
-9
-11
-11
-11
-12
-12
-12
-12
-12
-12
-13
-13
-13
-13
-13
-12
-11
-9
-8
-6
-6
-5
-4

Feels Like (°C)

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

Dew Point (°C)

-9
-11
-13
-14
-14
-15
-15
-15
-15
-15
-15
-15
-15
-15
-15
-14
-15
-14
-12
-10
-7
-7
-6
-6

Relative Humidity (%)

90
90
85
81
81
76
75
76
78
79
83
84
86
86
84
86
79
78
81
83
90
92
89
89

Pressure (mb)

996
1000
1003
1005
1007
1009
1011
1012
1014
1015
1017
1018
1018
1019
1019
1018
1018
1018
1017
1015
1013
1011
1010
1008

Ozone (du)

396
405
404
395
379
370
366
363
366
364
365
365
364
358
353
346
343
345
343
334
334
337
335
334

Saturday 20

Waxing Crescent 3%

09:32

No Set

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
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 07:53, Set: 16:39, Transit: 12:16. Moon - Rise: 09:32, Set: No Set. Civil Dark: 17:13 - 07:19. Nautical Dark: 17:50 - 06:42. Astro Dark: 18:26 - 06:06

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
99
99
100
97
93
90
89
88
88
87
84
82
67
50
25
20

Low Clouds (% Sky Obscured)

98
100
86
72
60
75
88
100
99
99
100
97
93
90
89
88
88
87
84
82
67
50
25
20

Medium Clouds (% Sky Obscured)

96
95
96
98
100
97
57
53
55
53
55
38
42
0
0
0
0
7
13
19
12
7
2
1

High Clouds (% Sky Obscured)

100
100
100
100
100
66
32
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

0
0
0
0
0
0
0
4
9
9
9
9
8
9
8
6
3
0
1
2
3
3
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

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

Precipitation Probability (%)

95
95
95
91
56
47
33
13
8
9
19
22
17
24
41
48
54
59
62
65
56
44
27
25

Precipitation Amount (mm)

1.1
1.1
0.8
0.6
0.2
0.2
0
0
0
0
0
0
0
0
0
0.1
0.1
0.2
0.3
0.3
0.2
0.1
0
0

Wind Speed/Direction (mph)

12
11
10
9
8
8
8
8
8
7
7
8
10
11
12
12
13
15
15
15
16
15
14
13

Chance of Frost

Temperature (°C)

-4
-3
-3
-3
-3
-2
-2
-1
-1
-1
-1
-0
-0
-0
0
-1
-1
-1
-3
-5
-7
-8
-9
-10

Feels Like (°C)

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

Dew Point (°C)

-5
-4
-4
-3
-3
-3
-2
-3
-4
-4
-4
-3
-3
-4
-4
-4
-3
-3
-6
-8
-11
-12
-12
-13

Relative Humidity (%)

94
94
96
96
96
98
96
87
78
80
83
83
80
75
73
78
84
91
84
79
73
75
78
81

Pressure (mb)

1007
1007
1006
1006
1005
1005
1005
1005
1005
1005
1006
1006
1006
1006
1006
1007
1007
1008
1009
1011
1012
1014
1016
1017

Ozone (du)

334
334
338
343
347
354
358
364
365
363
361
357
356
363
372
376
379
383
382
381
380
377
373
370

Sunday 21

Waxing Crescent 7%

10:06

17:54

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

Sun - Rise: 07:53, Set: 16:40, Transit: 12:17. Moon - Rise: 10:06, Set: 17:54. Civil Dark: 17:13 - 07:20. Nautical Dark: 17:50 - 06:42. Astro Dark: 18:26 - 06:07

Total Clouds (% Sky Obscured)

28
35
29
24
18
13
8
3
3
3
1
1
1
1
1
1
1
1
1
1
12
23
32
29

Low Clouds (% Sky Obscured)

28
35
29
24
16
12
8
3
3
3
1
1
1
1
1
1
1
1
1
1
10
18
26
29

Medium 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

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)

5
7
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 (%)

24
23
22
17
5
6
5
2
3
3
1
2
2
0
1
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-16
-15
-14
-18
-17
-17
-17
-17
-17
-18
-18
-18
-18
-17
-17
-19
-19
-19
-18
-17
-17
-12
-11
-11

Dew Point (°C)

-14
-14
-15
-16
-16
-16
-16
-17
-17
-17
-17
-17
-18
-18
-18
-18
-17
-16
-15
-15
-14
-13
-12
-11

Relative Humidity (%)

78
78
75
76
78
79
79
79
81
81
82
84
83
85
84
82
81
81
78
75
72
77
80
85

Pressure (mb)

1019
1021
1023
1025
1026
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1038
1039
1039
1038
1038
1038
1038
1038

Ozone (du)

368
367
365
367
370
372
374
375
377
377
378
378
376
375
373
371
368
366
367
369
370
368
366
364

Monday 22

Waxing Crescent 13%

10:33

19:03

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

Sun - Rise: 07:54, Set: 16:41, Transit: 12:17. Moon - Rise: 10:33, Set: 19:03. Civil Dark: 17:14 - 07:20. Nautical Dark: 17:51 - 06:43. Astro Dark: 18:27 - 06:07

Total Clouds (% Sky Obscured)

33
35
30
33
36
61
80
100
96
92
88
92
96
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

33
35
30
33
36
34
17
3
4
4
6
12
18
23
52
79
100
94
88
82

Medium Clouds (% Sky Obscured)

0
0
4
7
10
37
64
91
88
84
81
87
94
100
100
100
100
98
96
94

High Clouds (% Sky Obscured)

0
0
0
1
1
33
63
89
78
68
60
52
36
23
49
74
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
6
3
1
1
1
1
1
2

Fog (%)

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
Snow
Snow
Snow
Snow
Snow
Snow

Precipitation Probability (%)

0
0
0
0
0
1
1
0
0
0
0
16
26
36
54
67
78
79
81
85

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-10
-11
-12
-12
-12
-13
-12
-11
-11
-10
-9
-9
-8
-7
-6
-6
-5
-4
-3
-2

Feels Like (°C)

-10
-9
-8
-14
-14
-14
-15
-16
-17
-15
-15
-15
-15
-14
-14
-11
-11
-11
-11
-11

Dew Point (°C)

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

Relative Humidity (%)

85
85
85
86
84
84
86
88
88
88
88
90
90
92
92
90
89
90
89
87

Pressure (mb)

1038
1038
1038
1037
1037
1037
1036
1035
1034
1033
1032
1031
1030
1029
1028
1026
1025
1024
1022
1019

Ozone (du)

358
352
346
340
334
329
327
326
324
325
325
325
325
325
324
323
322
321
320
320

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

Generated: 16/12/25 17:45:10. Forecast: 16/12/25 to 22/12/25. Timezone: UTC-5.00