Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 15

Waning Crescent 16%

04:48

13:38

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
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad

Sun - Rise: 07:50, Set: 16:37, Transit: 12:13. Moon - Rise: 04:48, Set: 13:38. Civil Dark: 17:11 - 07:16. Nautical Dark: 17:48 - 06:39. Astro Dark: 18:24 - 06:04

Total Clouds (% Sky Obscured)

100
100
100
100
95
97
100
100
100
100
100
100
100
77
86
95
91
99
79
91
96
100
100
100

Low Clouds (% Sky Obscured)

89
83
70
68
83
67
56
83
84
62
40
66
43
44
72
89
83
99
79
91
96
100
100
88

Medium Clouds (% Sky Obscured)

100
100
100
100
67
45
100
99
65
60
55
56
100
51
35
37
1
0
0
0
0
0
5
0

High Clouds (% Sky Obscured)

100
100
100
79
46
6
98
100
15
15
19
53
92
77
3
0
0
0
0
5
22
16
77
100

ISS Passover

Visibility (miles)

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

Fog (%)

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

Precipitation Type

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

Precipitation Probability (%)

11
12
62
61
67
61
46
46
47
57
65
65
58
50
49
58
45
30
23
13
13
20
20
19

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

5
5
3
11
12
13
13
12
10
9
9
7
6
6
6
7
5
3
2
2
4
4
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-15
-15
-14
-11
-10
-10
-11
-11
-11
-11
-11
-11
-11
-11
-12
-12
-11
-10
-10
-10
-11
-12
-12
-11

Dew Point (°C)

-13
-12
-10
-7
-5
-6
-6
-7
-7
-7
-7
-8
-8
-8
-9
-8
-8
-7
-8
-9
-9
-9
-9
-7

Relative Humidity (%)

92
94
92
87
94
92
90
90
92
92
94
94
94
96
94
94
94
96
94
92
92
92
90
94

Pressure (mb)

1023
1022
1021
1019
1018
1017
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1017
1017
1017
1018
1018
1018
1018

Ozone (du)

276
280
277
282
287
290
292
299
302
305
313
332
327
324
318
315
312
305
303
304
303
301
294
289

Tuesday 16

Waning Crescent 11%

05:54

14:01

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
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad

Sun - Rise: 07:51, Set: 16:37, Transit: 12:14. Moon - Rise: 05:54, Set: 14:01. Civil Dark: 17:11 - 07:17. Nautical Dark: 17:48 - 06:40. Astro Dark: 18:24 - 06:04

Total Clouds (% Sky Obscured)

89
99
99
100
100
100
100
100
100
100
99
99
100
100
95
96
91
59
97
87
98
95
100
100

Low Clouds (% Sky Obscured)

66
61
49
50
57
66
79
77
79
72
51
47
49
37
51
39
60
59
79
84
88
95
100
100

Medium Clouds (% Sky Obscured)

7
56
96
100
100
81
81
93
82
97
97
95
91
80
66
31
66
28
23
21
70
40
42
60

High Clouds (% Sky Obscured)

89
98
98
100
100
100
100
100
98
97
78
71
100
100
85
90
9
7
67
21
19
12
50
43

ISS Passover

Visibility (miles)

3
7
9
9
9
9
9
6
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
Snow
None

Precipitation Probability (%)

6
3
2
2
3
3
4
2
3
0
0
5
10
1
1
0
0
0
0
4
14
43
47
31

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
0.2
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

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

Pressure (mb)

1018
1018
1018
1016
1015
1014
1013
1013
1011
1010
1009
1008
1007
1006
1005
1004
1003
1003
1003
1002
1002
1002
1003
1003

Ozone (du)

290
287
282
278
274
272
270
268
266
264
266
265
264
265
265
266
270
274
276
278
288
294
300
303

Wednesday 17

Waning Crescent 6%

06:58

14:31

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
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad

Sun - Rise: 07:51, Set: 16:38, Transit: 12:14. Moon - Rise: 06:58, Set: 14:31. Civil Dark: 17:11 - 07:18. Nautical Dark: 17:49 - 06:40. Astro Dark: 18:24 - 06:05

Total Clouds (% Sky Obscured)

92
91
95
97
100
100
100
100
94
61
61
59
59
50
52
65
77
88
100
100
100
99
99
99

Low Clouds (% Sky Obscured)

89
87
84
85
88
84
79
89
91
53
50
50
55
43
36
28
36
43
52
60
52
53
69
78

Medium Clouds (% Sky Obscured)

39
0
14
23
43
40
40
42
13
8
5
2
0
0
2
46
56
54
65
71
78
55
36
25

High Clouds (% Sky Obscured)

35
13
0
0
0
0
0
0
0
0
0
0
0
5
11
24
47
64
91
84
78
73
50
32

ISS Passover

Visibility (miles)

9
0
0
0
5
9
1
0
4
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
Snow
Snow
Snow
None
None
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

35
38
53
58
25
29
38
12
11
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

13
14
15
16
16
15
15
13
11
9
7
5
4
3
4
5
6
7
8
9
10
10
10
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
98
100
98
88
80
86
88
86
78
80
84
86
86
84
86
87
87
91
92
89
87
91
91

Pressure (mb)

1003
1004
1005
1006
1007
1008
1010
1011
1013
1015
1017
1018
1018
1019
1019
1019
1018
1018
1017
1016
1016
1015
1014
1013

Ozone (du)

310
314
319
327
331
337
342
352
354
354
344
333
328
327
327
326
326
327
327
328
329
330
329
328

Thursday 18

Waning Crescent 2%

07:58

15:08

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
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad

Sun - Rise: 07:52, Set: 16:38, Transit: 12:15. Moon - Rise: 07:58, Set: 15:08. Civil Dark: 17:12 - 07:18. Nautical Dark: 17:49 - 06:41. Astro Dark: 18:25 - 06:05

Total Clouds (% Sky Obscured)

99
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
98
98
96
95
95

Low Clouds (% Sky Obscured)

93
94
95
97
87
76
67
69
69
69
79
90
100
99
98
97
95
92
91
90
91
90
89
88

Medium Clouds (% Sky Obscured)

21
21
22
53
75
85
96
97
98
100
100
100
100
100
100
100
99
97
98
54
51
47
59
68

High Clouds (% Sky Obscured)

20
47
75
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
95
63
32
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
6
3
4
0
0
0
0
0
0
9
8
3
8
9
7
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None

Precipitation Probability (%)

0
19
34
41
29
23
47
95
95
95
95
95
95
95
95
89
90
92
94
81
69
62
59
48

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.7
0.9
1
1.2
1.1
0.9
0.9
0.8
0.5
0.5
0.6
0.7
0.5
0.3
0.3
0.3
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
91
93
94
96
96
96
98
98
100
100
100
100
100
100
100
98
94
91
85
81
84
91
89

Pressure (mb)

1012
1011
1010
1007
1005
1004
1003
1001
999
998
997
996
995
994
994
993
993
993
994
994
995
995
996
998

Ozone (du)

327
327
327
327
330
329
329
327
325
327
329
329
328
333
336
344
348
351
352
356
364
374
381
381

Friday 19

New Moon 0%

08:49

15:54

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 OK
00 OK
01 OK
02 OK
03 Good
04 OK
05 OK
06 Bad
07 Bad
08 Bad

Sun - Rise: 07:52, Set: 16:39, Transit: 12:15. Moon - Rise: 08:49, Set: 15:54. Civil Dark: 17:12 - 07:19. Nautical Dark: 17:49 - 06:42. Astro Dark: 18:25 - 06:06

Total Clouds (% Sky Obscured)

94
93
94
95
100
100
100
87
74
58
55
56
53
42
31
21
15
9
4
22
41
60
64
72

Low Clouds (% Sky Obscured)

88
89
91
93
100
100
100
87
74
58
54
45
40
31
24
17
10
7
4
5
5
6
13
21

Medium Clouds (% Sky Obscured)

61
39
14
18
54
49
40
39
38
36
35
38
40
27
12
0
0
0
0
18
36
53
57
60

High Clouds (% Sky Obscured)

0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
20
35
43
43
44

ISS Passover

Visibility (miles)

0
0
1
6
6
7
8
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
Snow
Snow
Snow
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

38
31
19
12
34
43
49
48
47
42
39
34
19
19
19
10
12
13
2
5
8
2
5
7

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

12
13
14
14
14
14
14
14
13
13
12
10
9
7
6
7
6
5
5
6
5
5
5
4

Chance of Frost

Temperature (°C)

-6
-8
-8
-9
-10
-3
-5
-6
-7
-9
-10
-11
-11
-11
-12
-12
-12
-12
-12
-13
-13
-14
-14
-14

Feels Like (°C)

-11
-14
-15
-16
-16
-9
-10
-11
-12
-13
-14
-15
-14
-13
-13
-13
-12
-14
-14
-14
-16
-18
-20
-19

Dew Point (°C)

-8
-10
-11
-12
-12
-6
-8
-9
-11
-12
-14
-14
-14
-13
-14
-14
-14
-14
-15
-15
-15
-16
-17
-16

Relative Humidity (%)

85
87
83
78
80
79
79
77
77
75
75
78
80
85
83
83
83
83
83
81
83
81
81
81

Pressure (mb)

1001
1003
1004
1006
1007
1000
1001
1003
1005
1008
1011
1012
1014
1016
1017
1019
1020
1021
1022
1023
1023
1023
1023
1023

Ozone (du)

383
382
384
386
386
386
387
388
390
391
393
385
377
370
359
349
339
343
348
352
349
345
342
341

Saturday 20

Waxing Crescent 1%

No Rise

16:51

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
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad

Sun - Rise: 07:53, Set: 16:39, Transit: 12:16. Moon - Rise: No Rise, Set: 16:51. Civil Dark: 17:13 - 07:19. Nautical Dark: 17:50 - 06:42. Astro Dark: 18:26 - 06:06

Total Clouds (% Sky Obscured)

82
89
94
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
99
99
99
100

Low Clouds (% Sky Obscured)

30
39
47
56
65
75
85
88
92
96
95
93
92
78
64
48
65
77
91
92
93
92
95
97

Medium Clouds (% Sky Obscured)

63
75
87
100
98
97
95
97
98
100
100
100
100
95
90
89
89
81
77
71
65
57
43
23

High Clouds (% Sky Obscured)

59
86
91
100
100
100
100
100
100
100
100
100
100
100
100
100
98
97
95
65
34
13
29
20

ISS Passover

Visibility (miles)

9
9
6
3
0
0
1
1
2
4
5
6
8
9
9
9
8
6
3
0
2
3
5
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
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
None
Snow
Snow
Snow
Snow
Snow
None
None

Precipitation Probability (%)

1
7
13
25
36
40
44
48
54
61
65
67
66
67
64
42
37
39
41
53
57
50
40
31

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

5
8
9
10
11
11
12
13
12
13
13
12
11
10
10
10
11
10
10
10
10
9
8
9

Chance of Frost

Temperature (°C)

-13
-12
-11
-9
-8
-7
-6
-6
-5
-5
-5
-4
-3
-2
-2
-1
-1
-1
-1
-1
-1
-1
-1
-1

Feels Like (°C)

-19
-20
-19
-18
-17
-13
-13
-14
-13
-13
-14
-10
-10
-9
-9
-9
-9
-5
-5
-5
-5
-5
-5
-5

Dew Point (°C)

-16
-15
-13
-11
-9
-9
-8
-7
-7
-6
-6
-6
-6
-5
-5
-4
-3
-2
-2
-1
-2
-3
-3
-3

Relative Humidity (%)

81
81
85
87
90
89
90
89
90
90
89
85
82
81
79
81
81
87
91
96
92
89
86
86

Pressure (mb)

1022
1022
1020
1019
1017
1016
1014
1013
1012
1010
1009
1008
1007
1006
1005
1005
1004
1004
1004
1004
1004
1004
1004
1004

Ozone (du)

340
339
336
332
329
328
327
325
324
323
321
324
326
329
330
332
334
336
339
341
343
344
345
345

Sunday 21

Waxing Crescent 3%

09:32

17:54

Sun - Rise: 07:53, Set: 16:39, Transit: 12:16. Moon - Rise: 09:32, Set: 17:54. Civil Dark: 17:13 - 07:20. Nautical Dark: 17:50 - 06:42. Astro Dark: 18:26 - 06:07

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: 15/12/25 09:20:44. Forecast: 15/12/25 to 21/12/25. Timezone: UTC-5.00