Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 5

Waning Gibbous 97%

16:58

08:52

03 Bad
04 Bad
05 Bad
06 OK
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

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)

54
65
72
12
59
60
83
89
96
96
94
93
89
85
88
92
99
100
100
100
100
98
97
98

Low Clouds (% Sky Obscured)

31
15
0
0
28
49
37
22
25
70
71
70
69
68
67
71
73
80
78
79
81
78
75
74

Medium Clouds (% Sky Obscured)

54
28
2
4
29
21
44
77
93
91
82
72
64
59
71
73
60
67
97
100
99
93
92
96

High Clouds (% Sky Obscured)

39
3
6
3
0
0
7
4
8
5
4
7
8
9
9
6
79
100
100
100
97
6
2
1

ISS Passover

Visibility (miles)

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

Fog (%)

0
1
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
Snow
Snow

Precipitation Probability (%)

0
0
18
6
4
4
10
20
10
8
9
22
20
8
17
6
4
6
12
21
25
34
51
57

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
0.3
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-14
-13
-13
-12
-12
-12
-11
-8
-7
-6
-5
-5
-4
-5
-5
-6
-6
-6
-6
-6
-6
-5
-5
-5

Feels Like (°C)

-18
-18
-18
-17
-17
-16
-15
-14
-12
-11
-10
-9
-9
-10
-10
-11
-10
-10
-11
-10
-10
-10
-9
-10

Dew Point (°C)

-16
-15
-15
-15
-14
-15
-13
-10
-9
-8
-7
-7
-7
-7
-8
-8
-8
-8
-8
-8
-7
-7
-7
-6

Relative Humidity (%)

86
84
83
83
83
81
83
85
85
87
82
81
84
84
84
85
85
87
87
87
87
85
84
90

Pressure (mb)

1024
1023
1022
1021
1021
1020
1019
1018
1017
1016
1015
1014
1013
1012
1012
1012
1011
1011
1010
1010
1009
1008
1008
1007

Ozone (du)

357
357
356
348
351
352
351
351
354
353
351
346
340
344
343
344
347
347
344
339
344
351
356
359

Saturday 6

Waning Gibbous 92%

18:12

09:57

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

Sun - Rise: 07:42, Set: 16:36, Transit: 12:09. Moon - Rise: 18:12, 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)

100
100
98
100
99
98
97
99
100
100
100
91
87
76
57
56
55
65
14
10
19
11
34
56

Low Clouds (% Sky Obscured)

73
84
77
77
76
84
82
98
100
98
100
70
73
56
24
23
22
25
2
3
6
2
2
3

Medium Clouds (% Sky Obscured)

82
55
96
88
83
66
52
52
65
60
62
29
2
0
0
0
0
1
1
0
0
3
32
53

High Clouds (% Sky Obscured)

4
4
4
0
0
0
0
0
0
3
4
1
3
11
4
4
4
3
4
4
4
2
12
22

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

56
50
53
46
54
71
78
80
74
60
62
38
37
24
21
19
20
17
4
2
1
1
1
0

Precipitation Amount (mm)

0.3
0.2
0.2
0
0.2
0.4
0.7
0.7
0.5
0.3
0.5
0.1
0.1
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-5
-4
-4
-4
-4
-4
-3
-2
-1
0
0
-1
-2
-3
-4
-5
-6
-7
-9
-10
-11
-12
-12
-13

Feels Like (°C)

-9
-9
-9
-9
-9
-8
-8
-6
-5
-5
-5
-6
-6
-8
-8
-9
-10
-12
-14
-13
-13
-14
-14
-15

Dew Point (°C)

-5
-5
-5
-5
-5
-4
-3
-2
-1
-1
-3
-2
-3
-4
-5
-6
-7
-8
-11
-12
-13
-14
-14
-15

Relative Humidity (%)

94
94
94
92
92
96
96
98
100
91
83
92
91
94
90
90
92
94
85
88
86
85
85
84

Pressure (mb)

1007
1006
1005
1005
1005
1005
1005
1005
1006
1006
1006
1007
1008
1009
1011
1013
1014
1015
1016
1017
1018
1019
1020
1021

Ozone (du)

369
376
377
381
380
366
361
356
353
347
344
343
344
348
352
356
355
355
355
354
354
353
354
354

Sunday 7

Waning Gibbous 89%

19:32

10:46

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

Sun - Rise: 07:43, Set: 16:36, Transit: 12:09. Moon - Rise: 19:32, 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)

75
100
100
100
100
100
100
100
99
98
100
100
99
90
91
85
73
64
55
52
46
40
35
5

Low Clouds (% Sky Obscured)

6
6
50
64
94
98
99
96
94
93
100
100
96
90
91
85
73
64
55
52
46
40
26
5

Medium Clouds (% Sky Obscured)

61
67
100
100
100
100
100
100
97
93
91
96
77
60
60
60
60
60
55
52
46
40
35
0

High Clouds (% Sky Obscured)

32
78
100
100
100
90
35
30
20
10
10
10
20
25
35
35
40
40
17
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
7
0
0
0
0
0
0
0
0
0
0
0
1
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

0
0
0
4
34
56
65
66
73
70
66
69
75
73
70
59
45
34
34
29
23
2
2
2

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
83
84
84
84
83
78
76
75
87
88
90
90
92
92
90
92
90
90
88
87
83
81
79

Pressure (mb)

1021
1021
1021
1021
1021
1021
1021
1021
1020
1019
1018
1017
1017
1017
1017
1018
1019
1019
1020
1020
1021
1022
1023
1024

Ozone (du)

354
354
353
355
358
367
367
368
370
376
374
383
396
400
395
394
402
413
416
412
413
419
423
418

Monday 8

Waning Gibbous 84%

20:52

11:21

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

Sun - Rise: 07:44, Set: 16:36, Transit: 12:10. Moon - Rise: 20:52, 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)

7
2
5
8
13
11
11
12
1
1
6
20
25
47
68
92
95
96
97
95
94
91
93
97

Low Clouds (% Sky Obscured)

7
2
5
8
11
9
5
5
1
1
0
0
1
14
22
21
30
41
51
40
37
29
19
20

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
2
20
25
47
68
88
89
89
90
89
88
86
88
75

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
3
14
25
46
61
77
61
19
0
0
0
0
33
66

ISS Passover

Visibility (miles)

9
9
9
9
6
8
7
9
9
9
9
9
9
9
9
9
9
9
8
9
9
4
2
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

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
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
6
7
15
9
13

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-16
-17
-17
-18
-20
-20
-19
-17
-16
-13
-12
-12
-13
-12
-13
-14
-15
-15
-16
-17
-17
-17
-17
-17

Dew Point (°C)

-15
-16
-17
-18
-19
-20
-18
-17
-15
-15
-14
-14
-13
-11
-11
-12
-12
-13
-13
-14
-14
-14
-14
-14

Relative Humidity (%)

81
83
82
82
80
80
81
81
79
76
75
72
74
85
87
88
86
86
88
86
85
85
86
85

Pressure (mb)

1025
1026
1026
1027
1028
1029
1029
1029
1029
1028
1027
1027
1027
1026
1026
1026
1026
1025
1025
1024
1024
1023
1022
1021

Ozone (du)

417
418
406
398
387
380
374
373
369
368
367
370
371
379
395
412
419
424
422
424
424
424
422
422

Tuesday 9

Waning Gibbous 75%

22:08

11:48

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

Sun - Rise: 07:45, Set: 16:36, Transit: 12:10. Moon - Rise: 22:08, 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)

100
98
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)

25
31
36
39
36
37
37
49
65
82
91
90
89
92
96
100
100
100
100
99
99
99
98
96

Medium Clouds (% Sky Obscured)

54
56
58
98
100
100
100
99
92
90
89
88
86
91
95
99
90
80
70
79
88
95
97
98

High Clouds (% Sky Obscured)

95
81
70
56
54
56
50
42
33
23
62
49
36
26
11
0
5
5
10
43
75
100
87
78

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

13
13
15
6
5
14
7
19
28
26
62
64
65
67
69
73
73
73
74
67
63
61
66
70

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
86
86
88
86
85
83
83
88
90
92
94
92
94
90
87
84
87
91
94
91
91
91
89

Pressure (mb)

1021
1020
1019
1018
1018
1017
1016
1015
1014
1013
1011
1008
1007
1007
1006
1006
1006
1005
1005
1004
1004
1004
1003
1002

Ozone (du)

422
417
418
421
419
419
416
409
400
388
372
368
363
358
356
353
351
350
349
348
343
338
334
331

Wednesday 10

Waning Gibbous 65%

23:19

12:09

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

Sun - Rise: 07:46, Set: 16:36, Transit: 12:11. Moon - Rise: 23:19, 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)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
98
97
96
97
98

Low Clouds (% Sky Obscured)

96
95
95
95
94
96
97
98
98
98
96
94
92
91
90
89
88
88
87
88
90
91
91
89

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
95
90
84
87
92

High Clouds (% Sky Obscured)

67
75
86
100
100
100
100
93
83
75
87
93
100
100
100
100
98
95
95
65
34
1
2
3

ISS Passover

Visibility (miles)

4
6
4
2
0
0
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

Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow

Precipitation Probability (%)

74
79
83
88
95
95
95
95
95
95
95
95
95
95
95
95
95
87
77
69
58
54
58
61

Precipitation Amount (mm)

0.4
0.4
0.5
0.5
0.6
0.7
0.8
0.9
1
1.1
1.1
1.1
1.1
1.1
1
1.1
0.9
0.6
0.4
0.4
0.2
0.2
0.2
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
86
89
94
96
98
98
100
98
98
98
98
98
100
98
100
100
100
100
100
100
100
100
100

Pressure (mb)

1002
1001
1001
1000
999
999
998
997
996
995
994
993
993
993
993
993
993
993
993
992
993
993
993
994

Ozone (du)

328
325
326
326
326
326
326
326
325
324
323
323
323
324
326
329
331
335
338
341
341
342
342
345

Thursday 11

Third Quarter 54%

00:27

12:27

Sun - Rise: 07:46, Set: 16:36, Transit: 12:11. Moon - Rise: 00:27, Set: 12:27. Civil Dark: 17:10 - 07:13. Nautical Dark: 17:47 - 06:36. Astro Dark: 18:23 - 06:00

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

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

Generated: 05/12/25 03:02:54. Forecast: 05/12/25 to 11/12/25. Timezone: UTC-5.00