Clear Outside v1.0 - International Weather Forecasts For Astronomers

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)

61
70
76
78
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
91
77
89
98
95

Low Clouds (% Sky Obscured)

61
70
76
67
73
82
43
0
0
42
54
40
47
76
78
78
77
75
72
69
51
81
96
91

Medium Clouds (% Sky Obscured)

51
70
76
71
61
94
100
100
100
100
100
100
100
100
100
100
100
100
93
60
38
2
2
0

High Clouds (% Sky Obscured)

61
70
76
78
100
100
100
100
100
100
100
100
100
100
100
85
81
20
1
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
8
7
9
6
7
9
9
9
9
8
5
2
1
1
1
3
7
8
9
9
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 (%)

3
3
6
13
12
11
8
18
8
12
13
14
17
34
33
36
27
16
11
6
4
5
22
9

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
82
89
90
92
92
92
90
90
90
90
90
92
92
94
94
96
96
96
92
89
81
79
78

Pressure (mb)

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

Ozone (du)

387
387
385
381
378
380
384
383
383
385
383
386
388
390
392
395
396
399
394
388
389
391
391
388

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)

99
95
74
52
86
95
91
63
52
58
60
45
46
80
92
100
100
100
100
100
100
100
100
99

Low Clouds (% Sky Obscured)

99
94
66
13
30
88
75
38
31
30
29
33
30
38
70
82
88
91
79
80
91
90
96
93

Medium Clouds (% Sky Obscured)

0
0
0
6
35
39
22
14
0
0
2
4
23
31
67
90
88
100
100
100
98
100
100
97

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
4
5
0
1
4
75
100
100
100
60
82
100
100
70
65

ISS Passover

Visibility (miles)

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

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
1
2
2
2
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

26
14
28
48
66
72
60
42
28
18
5
3
5
22
8
9
20
20
21
25
37
53
57
59

Precipitation Amount (mm)

0
0
0
0.3
0.7
0.8
0.4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.2
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
80
89
94
96
96
96
98
96
96
96
94
92
94
92
89
89
87
91
89
89
86
84
81

Pressure (mb)

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

Ozone (du)

387
385
383
379
378
376
374
373
373
372
373
369
365
362
360
358
357
358
358
358
354
351
348
347

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)

99
98
99
99
99
100
100
100
98
97
94
95
98
99
97
100
100
100
100
100
73
58
44
39

Low Clouds (% Sky Obscured)

86
83
83
90
89
99
100
100
97
87
73
88
93
98
96
100
100
100
100
100
73
58
44
39

Medium Clouds (% Sky Obscured)

95
91
91
77
94
97
97
80
54
50
26
25
14
21
29
39
40
40
40
45
30
17
0
0

High Clouds (% Sky Obscured)

70
70
65
65
60
50
47
16
30
20
10
1
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

8
0
0
0
0
0
0
0
0
1
2
0
2
0
9
8
6
4
4
6
8
7
6
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

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

Precipitation Probability (%)

49
54
68
84
93
95
95
95
67
38
34
30
37
36
21
21
32
40
38
30
23
29
14
13

Precipitation Amount (mm)

0.2
0.2
0.4
0.6
0.7
0.9
1.4
1
0.3
0
0.1
0
0.2
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

12
12
11
11
12
12
11
9
10
12
10
9
8
9
9
8
7
6
7
8
10
11
11
12

Chance of Frost

Temperature (°C)

-2
-2
-2
-2
-2
-2
-2
-1
-1
-2
-4
-5
-6
-8
-9
-10
-11
-12
-12
-12
-13
-12
-12
-12

Feels Like (°C)

-8
-8
-8
-7
-7
-7
-7
-6
-6
-7
-9
-10
-11
-13
-14
-15
-16
-16
-17
-18
-18
-18
-18
-18

Dew Point (°C)

-5
-4
-3
-3
-3
-2
-2
-2
-1
-4
-6
-7
-8
-9
-12
-13
-15
-15
-15
-17
-17
-17
-17
-17

Relative Humidity (%)

81
89
94
96
96
98
98
98
96
87
85
89
85
88
77
77
75
76
75
70
67
66
69
67

Pressure (mb)

1010
1010
1010
1009
1009
1009
1009
1009
1009
1010
1011
1012
1013
1014
1015
1016
1016
1017
1018
1019
1020
1021
1021
1022

Ozone (du)

347
347
351
355
360
364
366
365
364
365
368
369
367
364
369
367
378
386
392
397
411
419
421
407

Thursday 4

Full Moon 100%

15:57

08:52

14 OK
15 OK
16 OK
17 Bad
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
13 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)

25
21
24
25
26
25
19
22
45
66
91
95
95
100
98
96
95
97
99
100
100
100
99
100

Low Clouds (% Sky Obscured)

25
21
24
25
26
20
15
10
27
46
65
47
26
14
20
19
15
19
30
33
34
49
55
42

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
2
17
32
47
56
76
99
91
96
95
96
98
100
100
100
91
98

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
1
1
1
1
2
3
16
33
40
45
63
80
100
100
98
96
100

ISS Passover

Visibility (miles)

8
7
5
4
4
5
8
9
9
9
9
5
3
1
0
1
3
5
9
8
9
8
8
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 (%)

15
20
12
19
7
7
7
2
3
6
2
4
8
19
23
23
6
10
10
3
7
12
5
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)

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

Chance of Frost

Temperature (°C)

-12
-12
-12
-13
-14
-15
-15
-16
-16
-16
-15
-15
-14
-13
-12
-12
-11
-11
-10
-9
-8
-7
-6
-5

Feels Like (°C)

-18
-17
-17
-17
-17
-18
-19
-19
-20
-20
-19
-19
-19
-18
-17
-17
-17
-16
-15
-14
-13
-13
-11
-10

Dew Point (°C)

-17
-16
-16
-16
-17
-17
-18
-19
-19
-18
-18
-17
-16
-15
-14
-13
-13
-12
-13
-12
-11
-9
-8
-8

Relative Humidity (%)

67
69
72
76
78
79
79
80
80
80
80
80
86
88
88
88
88
86
80
80
80
82
80
79

Pressure (mb)

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

Ozone (du)

402
397
391
386
383
381
379
375
373
372
368
364
359
353
350
347
349
350
355
359
366
369
365
361

Friday 5

Waning Gibbous 97%

16:58

09:57

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: 07:42, 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)

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

Low Clouds (% Sky Obscured)

34
31
53
70
87
87
88
87
84
78
77
79
82
84
85
85
87
88
88
88
88
89
89
94

Medium Clouds (% Sky Obscured)

100
96
61
62
100
100
92
64
98
82
62
67
76
85
86
87
89
90
90
90
93
97
100
100

High Clouds (% Sky Obscured)

100
95
91
92
87
77
56
60
48
15
6
3
4
5
5
0
0
5
5
10
41
68
77
66

ISS Passover

Visibility (miles)

9
4
0
0
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

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

Precipitation Probability (%)

16
25
38
38
35
43
47
54
48
40
38
45
45
44
45
46
47
53
58
63
59
56
50
51

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
82
90
94
94
94
94
92
92
92
92
92
94
94
94
94
96
96
96
94
94
94
94
96

Pressure (mb)

1012
1011
1011
1011
1010
1010
1010
1010
1010
1010
1010
1010
1011
1010
1010
1010
1010
1010
1010
1010
1010
1010
1009
1008

Ozone (du)

360
357
353
351
353
352
345
340
336
329
327
323
318
313
307
308
308
309
309
308
308
309
310
311

Saturday 6

Waning Gibbous 92%

18:12

10:46

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 OK
07 OK
08 Good
09 Good
10 Good
11 Good
12 Good
13 Good

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)

100
100
100
100
100
100
100
100
100
100
100
81
61
42
37
32
27
20
10
0
2
4
6
7

Low Clouds (% Sky Obscured)

95
97
97
98
98
98
98
98
97
97
96
76
57
38
37
32
27
20
10
0
2
4
5
6

Medium Clouds (% Sky Obscured)

99
99
98
97
96
98
98
99
99
100
100
68
36
5
3
2
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

53
44
51
52
42
43
44
60
80
75
75
64
48
29
14
5
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

0
0
0
0
0
0
0
0
0
3
6
9
7
4
2
4
7
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
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

52
51
53
54
56
57
58
60
57
56
56
47
38
25
26
23
7
9
8
2
4
4
1
4

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-1
-1
-0
-0
-1
-1
-0
-1
-1
-1
-2
-3
-4
-6
-7
-8
-10
-11
-12
-12
-12
-12
-12
-12

Feels Like (°C)

-5
-5
-5
-4
-4
-4
-4
-4
-4
-4
-4
-4
-8
-8
-8
-9
-9
-9
-16
-17
-17
-17
-16
-16

Dew Point (°C)

-1
-1
-1
-1
-1
-1
-1
-1
-1
-2
-2
-3
-5
-7
-8
-10
-12
-13
-14
-15
-16
-16
-16
-16

Relative Humidity (%)

96
96
98
98
96
96
98
98
98
96
98
96
94
92
92
88
87
85
80
76
73
70
69
67

Pressure (mb)

1008
1008
1008
1008
1008
1008
1008
1008
1008
1009
1009
1010
1011
1013
1014
1016
1017
1019
1020
1022
1023
1024
1024
1025

Ozone (du)

311
311
311
312
313
313
315
317
319
320
322
323
325
327
329
330
331
333
334
335
336
337
339
341

Sunday 7

Waning Gibbous 84%

19:32

11:21

14 Good
15 Good
16 OK
17 OK
18 Bad
19 Bad
20 OK
21 OK
22 OK
23 OK
00 OK
01 OK
02 Bad
03 Bad
04 Bad
05 Bad
06 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)

10
13
28
39
51
36
27
21
25
22
20
26
41
58
60
65
71

Low Clouds (% Sky Obscured)

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

Medium Clouds (% Sky Obscured)

0
0
19
37
51
36
17
8
8
5
5
10
17
36
47
58
70

High Clouds (% Sky Obscured)

0
0
0
0
0
1
0
0
0
0
0
0
3
5
5
5
5

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

4
1
1
1
0
0
0
0
0
0
0
2
3
0
2
6
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-12
-12
-12
-14
-16
-17
-18
-18
-19
-19
-19
-19
-19
-19
-19
-19
-19

Feels Like (°C)

-16
-15
-15
-15
-14
-13
-20
-20
-19
-20
-20
-20
-21
-21
-22
-21
-21

Dew Point (°C)

-16
-16
-16
-17
-19
-20
-20
-21
-22
-22
-22
-22
-22
-22
-22
-22
-22

Relative Humidity (%)

69
73
75
76
78
80
79
78
78
77
77
77
77
77
77
77
77

Pressure (mb)

1026
1026
1027
1028
1029
1030
1030
1030
1030
1030
1030
1030
1030
1030
1030
1030
1030

Ozone (du)

352
363
374
377
380
384
381
378
376
382
388
395
395
396
396
393
390

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

Generated: 01/12/25 14:41:13. Forecast: 01/12/25 to 07/12/25. Timezone: UTC-5.00