Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 4

Full Moon 100%

16:58

08:52

17 OK
18 OK
19 OK
20 OK
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: 07:41, 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)

0
0
1
8
85
96
97
100
94
99
100
91
26
37
62
63
92
92
97
97
95
95
93
86

Low Clouds (% Sky Obscured)

0
0
0
0
65
68
26
26
0
24
82
22
0
19
30
49
59
18
31
68
70
68
69
68

Medium Clouds (% Sky Obscured)

0
0
1
2
49
90
95
100
94
98
100
63
3
2
39
32
75
80
93
86
75
71
71
50

High Clouds (% Sky Obscured)

0
0
1
3
70
55
75
24
21
15
50
7
11
2
0
0
7
5
7
4
3
0
8
9

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
4
6
9
4
4
9
8
8
7
5
4
4
4
4
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
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
1
1
2
0
1
1
3
6
9
22
7
4
5
6
19
8
22
23
26
8
6

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

Chance of Frost

Temperature (°C)

-17
-19
-20
-21
-20
-19
-18
-17
-16
-15
-15
-14
-13
-12
-12
-12
-11
-9
-7
-6
-5
-5
-5
-5

Feels Like (°C)

-20
-21
-22
-24
-22
-23
-23
-21
-21
-20
-20
-19
-19
-18
-17
-17
-16
-14
-13
-11
-10
-10
-9
-10

Dew Point (°C)

-21
-22
-23
-24
-23
-23
-22
-20
-19
-17
-17
-16
-15
-14
-15
-15
-13
-11
-9
-8
-8
-7
-7
-7

Relative Humidity (%)

71
76
72
73
76
75
73
75
77
86
86
84
83
84
83
83
85
85
85
84
82
84
85
82

Pressure (mb)

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

Ozone (du)

374
370
368
369
366
366
362
357
355
357
360
360
359
354
358
360
364
363
362
361
353
343
338
339

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)

90
97
85
96
100
100
100
100
100
98
92
95
95
93
97
99
99
99
99
97
100
81
87
86

Low Clouds (% Sky Obscured)

68
73
72
71
77
78
82
88
84
80
74
77
81
83
77
79
84
96
96
89
100
60
73
76

Medium Clouds (% Sky Obscured)

53
64
45
70
98
100
100
100
100
96
84
88
68
49
85
60
55
39
40
19
51
4
4
2

High Clouds (% Sky Obscured)

13
27
69
94
100
100
100
100
13
0
0
0
0
0
0
0
0
0
0
0
3
4
3
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
5
0
0
0
0
0
0
0
0
0
1
2
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
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
None
None

Precipitation Probability (%)

5
5
2
4
3
10
18
32
36
51
60
58
49
52
57
71
79
70
58
53
58
45
32
30

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
87
87
87
87
85
85
84
82
82
90
94
94
94
92
94
98
98
96
91
84
94
92
92

Pressure (mb)

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

Ozone (du)

340
343
350
350
346
341
343
347
349
350
359
369
373
377
373
365
367
363
362
356
355
354
355
358

Saturday 6

Waning Gibbous 92%

18:12

10:46

17 Bad
18 Bad
19 Bad
20 Bad
21 Good
22 OK
23 OK
00 Good
01 OK
02 OK
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: 07:43, 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)

67
57
68
63
12
23
21
15
23
34
88
97
97
100
100
100
100
100
99
98
97
97
97
94

Low Clouds (% Sky Obscured)

35
21
24
26
3
8
7
3
3
3
42
64
51
51
55
75
97
96
96
96
95
94
93
92

Medium Clouds (% Sky Obscured)

1
2
3
3
2
0
3
3
3
18
34
44
38
38
89
100
100
100
98
92
90
88
84
84

High Clouds (% Sky Obscured)

2
2
0
0
0
3
3
3
12
14
62
77
35
100
100
10
20
25
35
35
40
40
55
50

ISS Passover

Visibility (miles)

0
6
9
6
9
7
8
9
9
9
9
9
8
9
9
9
9
9
9
9
9
9
4
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
Snow
Snow
Snow
Snow
Snow
None
None
Snow
Snow

Precipitation Probability (%)

21
18
7
7
3
12
2
1
1
0
0
0
0
3
19
40
48
51
49
46
36
43
55
55

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.1
0.2
0.2
0.2
0.2
0
0
0.2
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-4
-5
-7
-8
-9
-10
-11
-12
-12
-12
-13
-13
-13
-13
-13
-13
-12
-11
-10
-10
-9
-8
-8
-8

Feels Like (°C)

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

Dew Point (°C)

-5
-7
-8
-9
-11
-12
-13
-14
-14
-15
-15
-15
-16
-15
-15
-15
-15
-15
-15
-14
-13
-12
-11
-9

Relative Humidity (%)

92
87
89
87
85
88
86
85
83
83
81
83
83
83
83
84
79
73
70
69
69
72
78
88

Pressure (mb)

1011
1013
1014
1016
1017
1017
1018
1019
1020
1021
1021
1021
1021
1021
1022
1022
1022
1022
1022
1021
1020
1019
1019
1019

Ozone (du)

360
359
359
359
358
355
356
356
356
356
357
357
358
357
361
365
367
369
374
378
376
378
387
388

Sunday 7

Waning Gibbous 84%

19:32

11:21

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

92
90
73
57
40
40
45
51
45
33
7
14
23
21
15
8
7
6
2
2
8
13
45
57

Low Clouds (% Sky Obscured)

89
87
73
57
40
40
45
51
41
28
3
5
14
12
6
3
4
4
1
1
1
1
2
7

Medium Clouds (% Sky Obscured)

83
83
72
57
40
40
45
39
19
1
0
0
0
0
0
0
0
0
0
0
2
3
21
30

High Clouds (% Sky Obscured)

35
25
25
10
10
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
3
16
16

ISS Passover

Visibility (miles)

0
0
0
0
0
0
0
3
9
9
9
7
2
2
4
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
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
None
None
None
None

Precipitation Probability (%)

52
51
48
43
36
36
24
6
4
3
1
1
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.2
0.2
0.2
0.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

5
5
6
5
5
5
6
8
7
7
7
5
4
4
4
4
4
4
4
4
4
4
4
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
90
90
92
90
90
90
86
85
83
84
84
86
84
83
81
82
79
76
73
70
69
71
85

Pressure (mb)

1019
1020
1020
1020
1021
1021
1022
1023
1024
1024
1025
1026
1027
1027
1028
1029
1029
1029
1029
1028
1028
1027
1027
1027

Ozone (du)

387
390
416
428
420
421
425
423
417
411
412
420
424
418
421
418
414
416
411
397
391
389
390
391

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)

60
58
59
65
71
77
82
88
78
72
64
67
83
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

16
38
28
24
24
31
32
33
32
36
40
35
35
37
55
73
90
92
94
97
97
96
95
97

Medium Clouds (% Sky Obscured)

30
30
35
44
52
63
74
85
73
42
19
31
39
50
59
71
85
88
92
95
97
98
99
100

High Clouds (% Sky Obscured)

7
3
10
19
30
30
27
20
13
6
1
20
42
69
77
83
89
83
79
75
62
49
36
22

ISS Passover

Visibility (miles)

9
9
9
9
9
7
6
5
0
1
1
1
1
6
4
4
3
2
1
1
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
1
6
15
15
22
24
15
18
17
6
16
21
25
44
55
63
68
74
80
84

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.1
0.2
0.3
0.4
0.4
0.5
0.6

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-14
-15
-16
-16
-16
-17
-16
-17
-17
-16
-16
-16
-16
-16
-16
-15
-16
-15
-15
-14
-14
-10
-10
-10

Dew Point (°C)

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

Relative Humidity (%)

83
86
85
88
86
85
81
85
86
86
88
85
86
85
85
85
85
85
87
89
92
94
94
94

Pressure (mb)

1027
1026
1026
1025
1024
1023
1023
1022
1021
1020
1019
1018
1017
1016
1016
1015
1014
1013
1011
1010
1008
1007
1006
1005

Ozone (du)

397
408
412
419
420
421
421
423
424
421
416
413
412
413
415
416
416
417
407
398
388
379
370
361

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
13 Bad
14 Bad
15 Bad
16 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)

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)

98
100
100
100
100
100
99
99
97
95
94
94
94
93
94
96
98
98
98
98
97
95
93
91

Medium Clouds (% Sky Obscured)

100
100
82
66
52
74
85
95
96
97
99
99
100
100
100
100
100
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

11
0
0
5
5
37
68
100
76
62
48
68
84
100
100
100
100
95
83
30
77
85
100
100

ISS Passover

Visibility (miles)

0
0
0
0
0
0
0
0
0
0
0
0
1
2
3
2
1
0
0
0
1
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 (%)

87
93
92
92
90
81
71
63
65
66
70
68
65
62
82
95
95
95
95
95
95
95
95
95

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

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

Pressure (mb)

1005
1005
1004
1004
1004
1003
1003
1003
1003
1002
1002
1001
1001
1000
1000
999
998
997
996
995
994
993
992
992

Ozone (du)

358
356
353
351
349
347
343
339
336
333
330
327
326
326
326
326
326
326
326
325
324
325
325
325

Wednesday 10

Waning Gibbous 54%

23:19

12:27

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: 23:19, Set: 12:27. Civil Dark: 17:10 - 07:13. Nautical Dark: 17:47 - 06:36. Astro Dark: 18:22 - 06:00

Total Clouds (% Sky Obscured)

100
100
100
100
100
99
99
98
99
99
100
97
95
92
94
96
98
93
89
85

Low Clouds (% Sky Obscured)

90
89
89
89
88
90
92
94
92
91
90
68
45
23
40
59
72
61
50
38

Medium Clouds (% Sky Obscured)

100
100
100
100
100
97
95
92
94
95
97
74
52
28
16
18
24
42
55
63

High Clouds (% Sky Obscured)

100
100
99
98
98
75
51
22
32
36
46
23
8
2
7
11
15
13
6
0

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

95
83
71
66
66
64
64
66
55
48
41
36
32
30
30
25
21
25
20
15

Precipitation Amount (mm)

0.6
0.5
0.3
0.3
0.3
0.3
0.3
0.3
0.2
0.1
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

10
10
10
10
10
9
10
10
11
9
10
11
11
10
9
10
10
10
10
10

Chance of Frost

Temperature (°C)

-1
-1
-1
-1
-2
-2
-2
-2
-3
-5
-7
-9
-11
-12
-13
-13
-13
-14
-12
-11

Feels Like (°C)

-5
-6
-7
-6
-6
-6
-6
-6
-6
-7
-8
-8
-9
-9
-10
-19
-19
-19
-19
-19

Dew Point (°C)

-1
-1
-1
-2
-2
-2
-2
-3
-3
-6
-8
-11
-12
-14
-15
-15
-15
-16
-15
-14

Relative Humidity (%)

100
98
100
98
100
100
98
96
98
94
90
88
86
86
84
84
84
81
81
81

Pressure (mb)

992
992
992
992
992
991
992
992
992
994
996
997
999
1000
1002
1003
1005
1007
1007
1008

Ozone (du)

327
329
331
336
341
346
346
346
346
348
349
351
359
367
375
371
366
362
360
359

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

Generated: 04/12/25 17:58:00. Forecast: 04/12/25 to 10/12/25. Timezone: UTC-5.00