Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 3

Waxing Gibbous 99%

15:57

07:33

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: 07:40, Set: 16:37, Transit: 12:08. Moon - Rise: 15:57, 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)

99
100
100
100
100
90
64
85
87
97
98
100
100
100
99
82
90
55
49
57
57
62
67
52

Low Clouds (% Sky Obscured)

90
100
100
100
100
87
37
78
79
92
93
100
100
100
98
56
59
0
22
22
14
24
34
13

Medium Clouds (% Sky Obscured)

42
79
100
100
100
64
50
41
24
22
15
51
55
55
54
35
47
19
0
0
0
0
0
0

High Clouds (% Sky Obscured)

45
83
100
100
89
1
0
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
4
0
0
0
0
0
0
0
0
0
0
1
0
1
1
0
0
0
5

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

Precipitation Probability (%)

60
53
84
89
75
43
44
36
31
43
52
61
78
75
55
33
29
31
38
40
36
28
12
19

Precipitation Amount (mm)

0.3
0.1
1.2
0.8
0.5
0.1
0.2
0.2
0
0.2
0.2
0.2
0.5
0.4
0.2
0
0
0
0
0.2
0.1
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-2
-2
-1
-2
-1
-3
-5
-6
-8
-9
-9
-10
-10
-11
-11
-12
-13
-13
-13
-12
-12
-11
-12
-12

Feels Like (°C)

-7
-7
-6
-6
-6
-8
-10
-11
-12
-13
-14
-14
-14
-15
-16
-17
-18
-18
-18
-18
-18
-17
-18
-18

Dew Point (°C)

-3
-2
-1
-2
-2
-5
-7
-7
-9
-10
-11
-12
-12
-12
-13
-14
-16
-16
-16
-16
-14
-14
-14
-15

Relative Humidity (%)

96
94
98
98
94
87
90
92
88
90
88
87
86
88
86
84
79
78
76
75
81
81
80
76

Pressure (mb)

1010
1010
1010
1011
1011
1012
1013
1014
1015
1015
1016
1016
1016
1017
1018
1020
1021
1022
1022
1023
1023
1023
1024
1025

Ozone (du)

355
358
361
364
369
373
372
369
368
373
370
377
384
387
392
396
403
416
419
405
399
395
391
385

Thursday 4

Full Moon 100%

16:58

08:52

17 OK
18 Good
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 Good
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 07:41, Set: 16:36, Transit: 12:09. Moon - Rise: 16:58, 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)

12
3
4
9
22
37
54
84
100
100
97
61
49
35
12
62
79
96
96
98
97
98
93
95

Low Clouds (% Sky Obscured)

0
0
0
7
22
32
54
77
67
70
31
21
9
6
1
31
27
44
76
83
86
90
81
75

Medium Clouds (% Sky Obscured)

0
0
0
1
2
14
8
52
100
100
93
41
22
2
4
38
60
89
92
96
94
94
82
59

High Clouds (% Sky Obscured)

0
0
0
0
1
4
4
5
18
80
81
19
1
0
6
48
70
4
5
6
6
6
23
12

ISS Passover

Visibility (miles)

8
9
9
9
9
9
9
9
9
9
8
0
2
7
9
9
9
8
7
4
4
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
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Snow
Snow
Snow

Precipitation Probability (%)

7
4
3
2
1
0
1
3
4
3
7
22
20
6
5
5
8
12
18
21
29
43
39
39

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
0.2
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-13
-14
-16
-17
-17
-17
-18
-17
-16
-15
-14
-13
-12
-11
-11
-11
-10
-8
-6
-5
-5
-4
-4
-4

Feels Like (°C)

-18
-17
-18
-19
-19
-20
-20
-20
-20
-20
-19
-18
-17
-16
-16
-14
-15
-14
-12
-10
-10
-10
-10
-9

Dew Point (°C)

-17
-18
-19
-20
-20
-21
-21
-20
-20
-18
-16
-15
-13
-13
-13
-13
-12
-10
-8
-8
-7
-7
-6
-5

Relative Humidity (%)

68
71
76
76
76
76
76
74
73
77
83
86
86
86
85
83
85
83
85
84
82
84
89
92

Pressure (mb)

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

Ozone (du)

377
374
374
375
376
372
368
363
359
355
363
359
356
356
359
360
361
365
366
363
357
346
341
337

Friday 5

Waning Gibbous 97%

16:58

09:57

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: 07:42, Set: 16:36, Transit: 12:09. Moon - Rise: 16:58, Set: 09:57. Civil Dark: 17:10 - 07:09. Nautical Dark: 17:47 - 06:32. Astro Dark: 18:22 - 05:56

Total Clouds (% Sky Obscured)

89
93
98
100
100
98
100
100
100
100
100
100
100
100
99
99
100
99
98
99
97
95
93
78

Low Clouds (% Sky Obscured)

73
77
94
93
95
88
87
87
80
91
95
95
97
95
91
91
88
93
93
96
93
91
88
76

Medium Clouds (% Sky Obscured)

44
33
59
44
78
96
100
100
100
99
100
97
100
100
91
64
81
98
95
41
30
24
19
13

High Clouds (% Sky Obscured)

9
7
22
70
70
72
100
100
100
4
8
25
20
6
3
1
0
0
0
0
0
0
2
2

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

32
26
18
6
18
12
46
48
48
44
55
65
70
65
54
54
48
54
69
79
62
60
58
51

Precipitation Amount (mm)

0.1
0
0
0
0
0
0.2
0.2
0.2
0.2
0.2
0.3
0.4
0.3
0.2
0.2
0.2
0.2
0.4
0.6
0.3
0.3
0.3
0

Wind Speed/Direction (mph)

8
9
8
8
8
7
8
8
9
9
9
9
9
10
10
9
10
10
10
10
10
10
10
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
90
90
89
90
90
90
92
94
94
92
90
92
94
94
92
94
92
94
98
100
96
92
86

Pressure (mb)

1013
1013
1013
1012
1012
1011
1010
1010
1009
1009
1008
1008
1007
1007
1006
1006
1006
1006
1005
1005
1005
1005
1006
1007

Ozone (du)

335
332
329
328
321
322
323
323
323
322
321
322
328
326
322
323
323
322
322
320
320
321
324
326

Saturday 6

Waning Gibbous 92%

18:12

10:46

17 Bad
18 Bad
19 Bad
20 Bad
21 OK
22 Bad
23 Bad
00 Bad
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: 07:43, Set: 16:36, Transit: 12:09. Moon - Rise: 18:12, Set: 10:46. Civil Dark: 17:10 - 07:09. Nautical Dark: 17:47 - 06:32. Astro Dark: 18:22 - 05:57

Total Clouds (% Sky Obscured)

62
46
43
42
18
40
43
51
26
18
23
26
38
53
70
76
80
59
60
49
50
69
70
70

Low Clouds (% Sky Obscured)

62
46
43
42
17
40
40
35
9
2
3
21
37
53
61
63
66
49
47
43
50
69
70
70

Medium Clouds (% Sky Obscured)

7
1
0
4
3
7
13
45
14
16
23
2
2
2
6
11
15
25
32
44
46
53
56
37

High Clouds (% Sky Obscured)

0
1
1
0
0
1
2
5
2
1
0
0
0
0
0
0
0
0
1
1
2
1
1
0

ISS Passover

Visibility (miles)

4
0
3
8
8
6
6
8
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

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

Precipitation Probability (%)

47
37
16
18
8
8
8
16
4
4
1
1
1
0
0
1
0
0
1
0
2
5
9
19

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
0
0
0
0

Wind Speed/Direction (mph)

11
10
10
10
10
7
6
6
6
4
4
2
2
3
2
2
2
3
4
3
3
4
4
3

Chance of Frost

Temperature (°C)

-3
-4
-6
-7
-8
-10
-11
-11
-13
-14
-15
-15
-16
-16
-16
-16
-15
-14
-12
-11
-9
-9
-9
-9

Feels Like (°C)

-7
-8
-10
-12
-13
-13
-15
-16
-17
-17
-17
-19
-18
-19
-19
-19
-18
-18
-14
-13
-11
-12
-12
-12

Dew Point (°C)

-5
-5
-7
-9
-10
-12
-12
-13
-14
-16
-17
-17
-18
-18
-18
-18
-17
-17
-16
-15
-14
-13
-12
-11

Relative Humidity (%)

82
94
89
83
85
88
88
88
86
84
84
84
83
82
81
82
82
78
73
69
68
71
74
83

Pressure (mb)

1009
1010
1012
1013
1015
1016
1017
1018
1019
1020
1020
1021
1022
1022
1023
1024
1024
1024
1024
1024
1023
1024
1024
1024

Ozone (du)

332
338
341
341
341
338
341
344
347
347
349
347
347
348
354
365
373
381
386
382
378
373
370
368

Sunday 7

Waning Gibbous 84%

19:32

11:21

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

Sun - Rise: 07:44, Set: 16:36, Transit: 12:10. Moon - Rise: 19:32, Set: 11:21. Civil Dark: 17:10 - 07:10. Nautical Dark: 17:47 - 06:33. Astro Dark: 18:22 - 05:58

Total Clouds (% Sky Obscured)

88
58
56
45
53
26
13
2
2
3
3
8
6
11
15
19
22
23
25
27
33
40
48
63

Low Clouds (% Sky Obscured)

82
58
56
45
53
26
13
2
2
2
2
8
2
6
6
6
6
5
3
1
2
3
4
5

Medium Clouds (% Sky Obscured)

19
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
6
14
21
26
31
36
52

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
3
5
8
11
16
21
17
9
1
1
1
0
0

ISS Passover

Visibility (miles)

7
6
6
6
6
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 (%)

29
26
28
24
10
9
6
1
1
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
2
2
3
5
7
7
6
5
4
4
3
3
3
2
1
1
1
2
2
2
2
3
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-13
-14
-13
-14
-15
-16
-15
-16
-17
-18
-18
-18
-19
-19
-19
-20
-21
-22
-22
-21
-21
-11
-10
-9

Dew Point (°C)

-12
-12
-13
-13
-15
-16
-16
-17
-17
-18
-18
-18
-19
-19
-20
-19
-18
-18
-17
-17
-17
-15
-13
-11

Relative Humidity (%)

86
86
86
86
84
79
78
79
81
81
81
81
80
80
79
78
77
75
69
66
61
69
75
85

Pressure (mb)

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

Ozone (du)

369
370
366
368
372
370
373
378
382
385
390
393
399
408
417
419
420
421
415
409
403
405
406
408

Monday 8

Waning Gibbous 75%

20:52

11:48

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: 07:45, Set: 16:36, Transit: 12:10. Moon - Rise: 20:52, Set: 11:48. Civil Dark: 17:10 - 07:11. Nautical Dark: 17:47 - 06:34. Astro Dark: 18:22 - 05:59

Total Clouds (% Sky Obscured)

75
87
84
80
78
86
93
99
100
100
100
87
72
61
68
75
82
79
78
75
83
92
100
99

Low Clouds (% Sky Obscured)

5
5
5
6
6
20
35
49
53
57
66
67
64
60
64
73
82
79
78
75
82
81
80
77

Medium Clouds (% Sky Obscured)

69
83
80
79
78
86
93
99
88
78
70
66
63
54
53
50
49
57
62
70
80
91
100
91

High Clouds (% Sky Obscured)

0
0
0
4
5
23
42
60
46
38
31
35
36
37
41
59
80
79
75
30
62
61
64
43

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
4
1
1
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
None
None
None
None
None
None
None
None
None
None
Snow
Snow
Snow
Snow
Snow
Snow
Snow

Precipitation Probability (%)

0
0
0
0
0
1
2
2
5
7
6
13
12
6
15
13
10
43
61
76
82
87
90
77

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.1
0.3
0.4
0.5
0.6
0.7
0.5

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-10
-10
-10
-16
-16
-17
-17
-18
-17
-16
-16
-16
-16
-16
-16
-14
-13
-13
-12
-11
-11
-8
-9
-9

Dew Point (°C)

-12
-13
-14
-15
-15
-15
-14
-14
-14
-14
-13
-13
-12
-12
-11
-11
-10
-9
-7
-6
-4
-4
-4
-3

Relative Humidity (%)

83
83
83
79
79
78
80
80
80
80
81
80
81
83
85
83
85
85
89
92
96
96
94
96

Pressure (mb)

1030
1029
1029
1029
1028
1027
1027
1026
1025
1024
1023
1022
1022
1021
1020
1019
1018
1018
1016
1015
1013
1012
1011
1011

Ozone (du)

411
414
417
413
410
406
403
400
397
397
396
396
397
397
398
404
411
417
417
417
417
421
424
427

Tuesday 9

Waning Gibbous 65%

22:08

12:09

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

Sun - Rise: 07:46, Set: 16:36, Transit: 12:11. Moon - Rise: 22:08, Set: 12:09. Civil Dark: 17:10 - 07:12. Nautical Dark: 17:47 - 06:35. Astro Dark: 18:22 - 05:59

Total Clouds (% Sky Obscured)

98
97
95
92
88
84
85
84
92
95
98
98
99
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

75
74
67
61
50
56
61
66
63
63
65
62
59
55
70
84
94
96
97
99

Medium Clouds (% Sky Obscured)

82
74
60
45
28
25
20
19
27
35
43
55
67
78
79
90
100
100
100
100

High Clouds (% Sky Obscured)

22
0
1
2
3
12
19
22
33
39
50
57
69
89
93
96
100
100
100
100

ISS Passover

Visibility (miles)

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

Fog (%)

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
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

68
62
51
41
30
22
17
9
12
12
5
10
11
10
11
8
2
11
13
15

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-9
-9
-9
-7
-7
-7
-7
-6
-6
-8
-8
-8
-9
-9
-11
-10
-10
-10
-9
-9

Dew Point (°C)

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

Relative Humidity (%)

96
96
96
92
91
87
89
92
94
96
96
94
94
94
94
96
96
96
94
91

Pressure (mb)

1011
1011
1010
1011
1011
1011
1011
1011
1011
1011
1012
1012
1012
1012
1011
1011
1011
1010
1009
1009

Ozone (du)

419
410
402
395
388
381
376
371
365
357
348
339
336
333
330
330
329
328
329
330

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

Generated: 03/12/25 17:17:09. Forecast: 03/12/25 to 09/12/25. Timezone: UTC-5.00