Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 28

First Quarter 58%

13:29

00:46

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

Sun - Rise: 07:34, Set: 16:39, Transit: 12:06. Moon - Rise: 13:29, Set: 00:46. Civil Dark: 17:11 - 07:01. Nautical Dark: 17:48 - 06:25. Astro Dark: 18:23 - 05:50

Total Clouds (% Sky Obscured)

100
100
98
85
81
32
37
47
44
25
16
5
5
3
4
4
7
10
21
35
31
39
95
93

Low Clouds (% Sky Obscured)

72
70
65
39
29
21
20
34
36
25
16
0
0
0
0
0
0
0
0
4
8
29
32
48

Medium Clouds (% Sky Obscured)

93
84
76
62
81
6
7
2
2
2
0
0
0
0
0
0
0
0
12
22
22
28
50
73

High Clouds (% Sky Obscured)

55
37
3
5
61
3
10
0
0
0
0
0
0
0
3
0
5
4
6
21
10
9
29
16

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 (%)

12
8
9
5
9
7
6
6
4
3
4
4
4
6
3
3
1
5
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-9
-9
-10
-8
-8
-8
-8
-9
-9
-8
-8
-8
-8
-8
-8
-9
-9
-9
-9
-8
-8
-6
-5
-6

Dew Point (°C)

-6
-7
-7
-6
-7
-7
-7
-7
-8
-8
-8
-8
-8
-8
-8
-8
-9
-9
-9
-10
-10
-10
-9
-9

Relative Humidity (%)

76
75
76
74
72
72
73
75
76
78
77
81
80
84
85
85
84
83
83
76
67
63
62
59

Pressure (mb)

1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1028
1029
1030
1031
1031
1031
1031
1030

Ozone (du)

333
336
344
349
350
350
355
356
356
356
350
347
345
345
344
345
346
347
347
347
347
346
344
343

Saturday 29

Waxing Gibbous 69%

13:49

02:01

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
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad

Sun - Rise: 07:35, Set: 16:38, Transit: 12:07. Moon - Rise: 13:49, Set: 02:01. Civil Dark: 17:11 - 07:03. Nautical Dark: 17:48 - 06:26. Astro Dark: 18:23 - 05:51

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

73
72
73
76
59
67
86
89
89
95
97
100
100
96
95
95
96
97
100
100
100
100
97
89

Medium Clouds (% Sky Obscured)

52
83
100
100
98
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

100
100
100
91
95
96
100
100
100
100
100
100
100
70
75
5
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
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
None
None
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow

Precipitation Probability (%)

0
1
1
1
1
3
16
50
78
90
95
95
95
95
95
95
95
95
95
95
95
95
95
82

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.2
0.5
0.6
0.7
0.8
1
1
0.9
0.9
0.8
0.9
1.1
1.1
1.5
1.4
0.7
0.5

Wind Speed/Direction (mph)

4
4
3
2
3
4
5
5
6
7
8
8
10
10
11
11
11
11
11
10
10
9
8
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-9
-9
-6
-5
-5
-5
-5
-5
-4
-4
-4
-4
-4
-3
-3
-3
-3
-2
-2
-1
-0
0
0
1

Relative Humidity (%)

56
57
72
82
84
84
84
82
94
94
92
94
94
94
94
96
96
96
98
96
98
98
98
100

Pressure (mb)

1030
1030
1030
1030
1030
1029
1028
1027
1026
1026
1025
1023
1022
1020
1018
1016
1014
1013
1011
1010
1009
1008
1006
1006

Ozone (du)

344
344
342
342
345
348
350
350
349
350
351
351
355
361
364
368
368
370
375
379
381
383
388
391

Sunday 30

Waxing Gibbous 79%

No Rise

03:18

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

Sun - Rise: 07:37, Set: 16:38, Transit: 12:07. Moon - Rise: No Rise, Set: 03:18. Civil Dark: 17:11 - 07:04. Nautical Dark: 17:47 - 06:27. Astro Dark: 18:23 - 05:52

Total Clouds (% Sky Obscured)

99
100
100
97
99
99
96
94
95
52
43
38
27
14
0
0
3
19
19
52
70
85
100
100

Low Clouds (% Sky Obscured)

95
97
91
78
96
92
93
94
95
52
43
38
27
14
0
0
2
2
2
0
7
14
23
27

Medium Clouds (% Sky Obscured)

97
100
96
90
66
65
58
0
0
0
0
0
0
0
0
0
0
0
0
3
70
83
100
100

High Clouds (% Sky Obscured)

70
69
92
65
21
14
0
0
0
0
0
0
0
0
0
0
1
18
15
52
70
84
100
100

ISS Passover

Visibility (miles)

0
0
0
2
1
1
0
4
4
6
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
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

78
89
74
45
33
39
35
32
15
6
2
3
2
2
1
0
0
0
0
0
0
2
0
1

Precipitation Amount (mm)

0.5
0.8
0.4
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
9
8
9
13
13
12
13
14
12
11
11
10
9
8
6
4
3
3
3
3
3
4
5

Chance of Frost

Temperature (°C)

1
1
1
1
-2
-3
-4
-5
-5
-6
-7
-8
-8
-9
-9
-10
-10
-10
-10
-10
-9
-8
-7
-6

Feels Like (°C)

-3
-3
-4
-4
-7
-8
-9
-11
-11
-12
-11
-12
-12
-13
-13
-13
-12
-12
-13
-12
-12
-12
-11
-10

Dew Point (°C)

0
1
0
0
-3
-4
-5
-6
-7
-9
-10
-12
-12
-13
-13
-13
-13
-13
-12
-13
-14
-13
-12
-10

Relative Humidity (%)

98
98
98
96
92
91
92
87
85
82
76
72
71
72
74
75
80
81
83
75
68
67
68
71

Pressure (mb)

1005
1006
1007
1009
1012
1014
1017
1018
1021
1023
1024
1026
1027
1028
1028
1029
1030
1030
1031
1031
1031
1031
1030
1029

Ozone (du)

394
396
407
409
412
407
405
407
409
410
410
406
401
400
401
404
400
394
391
389
390
390
387
385

Monday 1

Waxing Gibbous 88%

14:11

04:41

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
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad

Sun - Rise: 07:38, Set: 16:37, Transit: 12:07. Moon - Rise: 14:11, Set: 04:41. Civil Dark: 17:10 - 07:05. Nautical Dark: 17:47 - 06:28. Astro Dark: 18:22 - 05:52

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
97
95
92
91
90
89
93
96
100
100
100
100
99
100
100
100

Low Clouds (% Sky Obscured)

42
64
52
51
81
71
63
50
41
39
34
26
21
21
23
16
6
19
33
22
42
68
87
88

Medium Clouds (% Sky Obscured)

100
100
100
100
100
96
92
88
86
84
83
86
87
89
89
95
100
82
67
29
27
24
31
40

High Clouds (% Sky Obscured)

98
100
100
100
100
100
100
100
84
70
59
49
35
30
53
77
100
100
100
100
99
98
99
100

ISS Passover

Visibility (miles)

9
9
9
9
1
0
0
1
3
0
0
0
0
0
3
9
5
4
4
9
9
7
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
None
None
None
None
None
Snow
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

2
3
11
16
26
36
27
24
18
34
36
46
39
31
18
15
12
14
13
10
17
7
4
6

Precipitation Amount (mm)

0
0
0
0
0
0.1
0
0
0
0
0
0.1
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
79
85
89
90
92
92
92
92
92
92
94
94
94
94
96
98
96
96
94
89
84
83
80

Pressure (mb)

1028
1027
1026
1026
1025
1025
1024
1023
1022
1022
1021
1020
1020
1019
1018
1018
1018
1018
1017
1017
1016
1015
1014
1013

Ozone (du)

383
380
381
382
384
385
385
384
383
384
377
377
376
373
371
371
372
371
370
369
369
370
369
368

Tuesday 2

Waxing Gibbous 95%

14:37

06:07

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
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad

Sun - Rise: 07:39, Set: 16:37, Transit: 12:08. Moon - Rise: 14:37, Set: 06:07. Civil Dark: 17:10 - 07:06. Nautical Dark: 17:47 - 06:29. Astro Dark: 18:22 - 05:53

Total Clouds (% Sky Obscured)

100
100
100
100
100
69
73
82
90
89
88
32
47
60
76
87
98
99
99
100
99
98
96
96

Low Clouds (% Sky Obscured)

89
90
88
85
82
56
58
64
70
76
81
31
45
57
66
75
85
77
71
63
74
83
90
92

Medium Clouds (% Sky Obscured)

51
60
59
59
58
57
51
50
39
22
10
0
1
1
22
42
62
73
87
100
95
90
86
88

High Clouds (% Sky Obscured)

100
95
63
32
0
0
0
0
0
0
0
1
1
2
2
1
0
34
67
100
67
35
5
17

ISS Passover

Visibility (miles)

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

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
12
11
14
10
15
11
6
12
10
4
13
15
6
17
18
17
17
13
14
15
19
23
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)

3
4
4
3
3
3
3
3
2
2
1
2
3
3
3
4
5
5
6
7
8
8
9
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
77
83
83
84
89
92
94
92
92
92
92
92
92
92
94
94
96
92
90
89
86
84
83

Pressure (mb)

1013
1012
1012
1012
1011
1012
1012
1012
1011
1011
1011
1011
1014
1013
1013
1013
1013
1013
1013
1013
1012
1012
1011
1010

Ozone (du)

368
371
372
365
359
358
360
363
363
364
365
363
358
354
350
351
351
352
355
357
360
361
363
364

Wednesday 3

Waxing Gibbous 99%

15:12

07:33

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
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad

Sun - Rise: 07:40, Set: 16:37, Transit: 12:08. Moon - Rise: 15:12, Set: 07:33. Civil Dark: 17:10 - 07:07. Nautical Dark: 17:47 - 06:30. Astro Dark: 18:22 - 05:54

Total Clouds (% Sky Obscured)

96
96
95
94
94
91
89
87
92
96
100
100
100
100
98
97
95
79
63
47
62
75
83
86

Low Clouds (% Sky Obscured)

93
95
93
92
92
87
86
83
88
94
100
97
94
91
85
81
79
67
54
42
56
70
83
82

Medium Clouds (% Sky Obscured)

90
91
89
86
84
70
62
57
66
76
85
90
86
86
70
54
40
27
14
0
11
22
35
44

High Clouds (% Sky Obscured)

30
43
33
24
15
10
6
1
1
1
1
11
20
28
25
19
15
13
11
3
4
5
8
5

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

39
44
47
52
61
59
63
70
73
77
77
73
70
68
61
56
49
49
48
42
38
35
29
32

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

10
10
11
11
11
11
10
10
10
9
10
11
9
9
8
8
8
8
9
10
10
10
10
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
89
92
92
94
94
94
96
98
91
86
79
82
82
84
81
77
74
71
69
67
68
70
71

Pressure (mb)

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

Ozone (du)

363
363
363
364
365
367
367
367
367
364
362
359
361
364
366
368
370
371
372
372
372
381
390
399

Thursday 4

Full Moon 100%

15:57

08:52

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: 07:41, Set: 16:37, Transit: 12:09. Moon - Rise: 15:57, Set: 08:52. Civil Dark: 17:10 - 07:08. Nautical Dark: 17:47 - 06:31. Astro Dark: 18:22 - 05:55

Total Clouds (% Sky Obscured)

90
96
98
99
100
100
100
100
99
98
96
78
65
59
52
50
49

Low Clouds (% Sky Obscured)

84
84
88
91
92
95
97
100
98
97
95
64
34
4
14
26
41

Medium Clouds (% Sky Obscured)

53
68
74
81
86
74
51
30
25
15
10
15
20
35
33
29
26

High Clouds (% Sky Obscured)

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

ISS Passover

Visibility (miles)

3
3
2
3
5
6
7
7
7
8
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

Precipitation Type

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

Precipitation Probability (%)

34
34
40
49
56
58
57
53
59
61
55
49
36
8
9
11
3

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

8
6
4
4
3
3
3
4
5
5
5
5
4
3
3
3
3

Chance of Frost

Temperature (°C)

-7
-7
-7
-8
-9
-10
-10
-11
-11
-12
-13
-14
-15
-16
-17
-17
-17

Feels Like (°C)

-11
-11
-11
-12
-12
-12
-14
-14
-14
-14
-14
-14
-18
-17
-17
-18
-19

Dew Point (°C)

-10
-10
-10
-10
-11
-12
-13
-13
-14
-15
-16
-17
-18
-19
-19
-19
-19

Relative Humidity (%)

76
80
83
85
85
87
83
81
80
78
78
76
77
79
80
80
80

Pressure (mb)

1015
1015
1015
1016
1016
1016
1016
1017
1017
1017
1018
1018
1019
1019
1020
1020
1020

Ozone (du)

402
406
410
410
410
410
406
402
398
392
386
380
380
381
381
378
376

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

Generated: 28/11/25 14:26:46. Forecast: 28/11/25 to 04/12/25. Timezone: UTC-5.00