Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 13

Waning Crescent 25%

02:11

12:51

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 Good
14 Good
15 Good
16 Good
17 Good
18 Good

Sun - Rise: 07:24, Set: 16:10, Transit: 11:47. Moon - Rise: 02:11, Set: 12:51. Civil Dark: 16:44 - 06:50. Nautical Dark: 17:21 - 06:13. Astro Dark: 17:57 - 05:37

Total Clouds (% Sky Obscured)

95
70
67
55
100
100
100
100
100
100
51
40
54
60
73
61
66
52
16
3
4
2
2
4

Low Clouds (% Sky Obscured)

76
68
21
1
0
35
42
45
32
30
18
5
28
45
73
61
56
32
1
0
1
1
1
2

Medium Clouds (% Sky Obscured)

53
70
59
55
100
100
100
100
100
100
35
35
40
33
0
0
6
20
9
0
0
0
0
0

High Clouds (% Sky Obscured)

3
50
50
50
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

8
9
9
9
9
9
9
9
9
9
9
5
4
3
5
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 (%)

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

6
6
5
6
8
6
6
6
6
5
4
3
3
3
2
2
4
5
5
5
4
3
4
4

Chance of Frost

Temperature (°C)

-3
-4
-5
-6
-6
-7
-7
-7
-8
-9
-10
-11
-13
-14
-13
-11
-10
-10
-9
-9
-10
-12
-13
-15

Feels Like (°C)

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

Dew Point (°C)

-5
-6
-8
-9
-7
-8
-8
-9
-10
-10
-11
-13
-14
-15
-14
-13
-13
-13
-14
-13
-12
-14
-16
-17

Relative Humidity (%)

87
82
79
84
87
90
89
88
88
88
88
88
88
88
90
85
78
74
71
74
83
83
81
81

Pressure (mb)

1012
1012
1013
1013
1013
1014
1014
1015
1015
1015
1015
1016
1016
1016
1017
1017
1017
1016
1016
1016
1016
1017
1017
1018

Ozone (du)

340
343
345
345
347
345
345
350
352
352
356
362
370
377
380
382
383
385
381
374
371
367
365
359

Sunday 14

Waning Crescent 17%

03:16

13:11

19 OK
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
17 Bad
18 Bad

Sun - Rise: 07:25, Set: 16:10, Transit: 11:48. Moon - Rise: 03:16, Set: 13:11. Civil Dark: 16:44 - 06:51. Nautical Dark: 17:22 - 06:14. Astro Dark: 17:57 - 05:38

Total Clouds (% Sky Obscured)

20
40
55
65
85
88
92
92
96
97
96
94
95
97
96
95
97
94
96
76
91
89
92
90

Low Clouds (% Sky Obscured)

12
25
43
52
71
75
86
86
87
90
92
84
85
90
87
85
83
81
80
35
26
19
41
72

Medium Clouds (% Sky Obscured)

0
0
0
0
6
6
0
0
7
9
0
9
13
35
18
6
45
46
64
51
82
82
84
85

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
9
22
82
90
90
76
90
16
0
0

ISS Passover

Visibility (miles)

9
2
2
0
0
0
0
0
1
1
1
1
2
2
2
2
3
4
3
2
2
2
1
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
None
None
Snow

Precipitation Probability (%)

1
6
18
18
19
20
21
16
20
8
21
13
5
4
6
4
4
5
3
5
4
13
22
34

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
0.1

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-15
-15
-15
-15
-16
-16
-16
-16
-16
-16
-16
-15
-16
-16
-15
-14
-13
-12
-12
-11
-11
-12
-12
-13

Feels Like (°C)

-18
-19
-20
-21
-21
-22
-22
-22
-22
-22
-22
-22
-22
-22
-21
-20
-19
-19
-18
-17
-17
-17
-17
-18

Dew Point (°C)

-18
-17
-17
-17
-17
-18
-18
-18
-18
-17
-17
-17
-18
-18
-17
-16
-15
-14
-14
-13
-13
-13
-14
-14

Relative Humidity (%)

80
82
84
84
85
84
87
86
85
86
88
86
86
84
88
86
86
84
86
88
86
86
88
90

Pressure (mb)

1018
1018
1018
1018
1018
1018
1018
1018
1019
1019
1019
1020
1020
1020
1020
1020
1019
1018
1017
1017
1017
1017
1017
1017

Ozone (du)

354
336
340
345
344
342
352
371
381
350
347
330
318
314
317
306
302
296
302
302
297
301
325
330

Monday 15

Waning Crescent 11%

04:22

13:34

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
17 Bad
18 Bad

Sun - Rise: 07:25, Set: 16:11, Transit: 11:48. Moon - Rise: 04:22, Set: 13:34. Civil Dark: 16:44 - 06:52. Nautical Dark: 17:22 - 06:14. Astro Dark: 17:58 - 05:38

Total Clouds (% Sky Obscured)

93
94
94
97
93
92
95
92
95
95
86
91
84
86
87
85
80
100
99
99
99
98
98
98

Low Clouds (% Sky Obscured)

75
81
83
83
81
82
82
81
85
76
79
78
76
79
78
73
69
67
49
43
33
32
28
40

Medium Clouds (% Sky Obscured)

87
70
39
42
42
40
43
34
27
27
3
11
0
0
0
0
0
45
40
28
89
90
89
90

High Clouds (% Sky Obscured)

0
4
0
0
4
0
0
0
0
0
2
1
0
2
2
11
33
95
96
93
92
91
83
75

ISS Passover

Visibility (miles)

0
0
0
0
0
0
0
0
0
0
0
0
1
3
1
2
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
None
Snow
Snow
Snow
None
Snow
None
None
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

31
37
34
39
36
36
31
34
32
29
32
8
4
3
11
1
1
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0.1
0
0.1
0.1
0.1
0
0.1
0
0
0.1
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
92
92
92
92
92
92
92
90
92
92
94
94
90
92
87
85
85
84
84
82
82
82
84

Pressure (mb)

1017
1017
1016
1016
1016
1016
1016
1017
1017
1017
1018
1018
1018
1019
1020
1020
1020
1019
1017
1017
1017
1017
1016
1016

Ozone (du)

321
330
341
332
339
352
364
372
384
395
397
395
390
380
373
360
344
322
299
286
275
267
262
260

Tuesday 16

Waning Crescent 6%

05:29

14:03

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
17 Bad
18 Bad

Sun - Rise: 07:26, Set: 16:11, Transit: 11:49. Moon - Rise: 05:29, Set: 14:03. Civil Dark: 16:45 - 06:52. Nautical Dark: 17:22 - 06:15. Astro Dark: 17:58 - 05:39

Total Clouds (% Sky Obscured)

99
99
100
100
99
98
97
96
95
97
99
100
100
99
99
99
100
100
99
98
98
96
94
92

Low Clouds (% Sky Obscured)

22
23
6
4
5
5
7
6
10
74
58
53
66
93
98
99
99
100
99
98
97
93
87
83

Medium Clouds (% Sky Obscured)

91
79
61
54
50
68
64
69
69
79
84
91
94
94
95
81
65
50
45
0
0
0
0
0

High Clouds (% Sky Obscured)

80
89
100
97
95
92
88
79
79
86
93
100
86
73
59
41
27
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
5
9
9
9
9
9
9
9
9
9
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
0
0
0
0
0
0
0
0
2
4
6
25
29
29
21
15
10
13
30
42
26
28
44

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-7
-7
-7
-8
-7
-7
-7
-7
-6
-6
-5
-4
-4
-3
-3
-2
-2
-1
-1
-0
1
2
2
1

Relative Humidity (%)

82
84
82
81
81
81
81
79
79
79
81
81
81
83
86
84
86
86
86
89
94
93
91
86

Pressure (mb)

1015
1014
1014
1013
1012
1011
1009
1009
1007
1006
1006
1005
1004
1004
1004
1004
1004
1003
1003
1004
1004
1005
1006
1007

Ozone (du)

264
268
270
272
272
271
272
273
273
277
275
276
276
282
285
289
291
293
297
301
307
315
319
326

Wednesday 17

Waning Crescent 2%

06:33

14:40

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

Sun - Rise: 07:27, Set: 16:11, Transit: 11:49. Moon - Rise: 06:33, Set: 14:40. Civil Dark: 16:45 - 06:53. Nautical Dark: 17:23 - 06:15. Astro Dark: 17:59 - 05:39

Total Clouds (% Sky Obscured)

60
21
68
46
62
80
14
14
16
10
10
15
32
49
66
79
85
92
86
90
100
100
100
100

Low Clouds (% Sky Obscured)

54
21
5
13
25
39
14
9
3
4
5
6
5
4
4
4
4
4
4
5
5
17
20
22

Medium Clouds (% Sky Obscured)

0
2
2
7
0
0
2
4
7
10
10
15
32
25
9
30
53
80
86
90
100
100
100
100

High Clouds (% Sky Obscured)

0
0
0
1
2
4
14
14
16
10
10
15
27
45
64
79
85
92
86
90
90
97
98
100

ISS Passover

Visibility (miles)

9
9
2
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
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
Snow
Snow

Precipitation Probability (%)

14
27
22
7
3
1
0
0
0
0
0
0
0
0
0
0
0
0
7
10
10
33
56
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
0.2
0.1

Wind Speed/Direction (mph)

15
13
11
10
7
5
5
5
5
5
3
3
3
3
3
2
4
7
9
10
10
10
11
12

Chance of Frost

Temperature (°C)

1
-1
-3
-5
-6
-7
-7
-7
-8
-8
-10
-12
-12
-11
-9
-8
-6
-4
-2
-2
-1
-1
1
2

Feels Like (°C)

-8
-10
-10
-14
-13
-14
-14
-13
-13
-13
-12
-14
-15
-14
-14
-14
-13
-12
-11
-6
-6
-6
-6
-7

Dew Point (°C)

-3
-5
-5
-9
-10
-10
-10
-11
-11
-11
-12
-14
-14
-13
-11
-9
-9
-7
-5
-4
-3
-3
-2
-2

Relative Humidity (%)

75
75
86
72
74
74
77
77
80
82
86
86
88
86
85
87
82
81
78
81
84
87
83
77

Pressure (mb)

1010
1011
1013
1016
1017
1019
1020
1022
1023
1023
1023
1023
1024
1023
1023
1022
1020
1019
1017
1015
1014
1012
1011
1009

Ozone (du)

334
340
343
346
348
349
336
331
328
325
321
320
319
319
319
319
319
319
319
316
314
312
312
312

Thursday 18

Waning Crescent 0%

07:32

15:26

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
17 Bad
18 Bad

Sun - Rise: 07:27, Set: 16:12, Transit: 11:50. Moon - Rise: 07:32, Set: 15:26. Civil Dark: 16:46 - 06:53. Nautical Dark: 17:23 - 06:16. Astro Dark: 17:59 - 05:40

Total Clouds (% Sky Obscured)

100
99
99
99
100
100
100
100
100
99
96
92
85
92
100
84
69
50
56
64
72
80
88
96

Low Clouds (% Sky Obscured)

17
20
30
39
49
58
59
59
60
61
59
56
70
85
100
84
69
50
56
64
72
80
88
96

Medium Clouds (% Sky Obscured)

94
88
80
88
94
100
100
100
100
88
78
67
65
67
69
48
30
10
10
15
20
20
23
27

High Clouds (% Sky Obscured)

100
99
99
99
100
100
89
80
76
70
85
85
85
81
81
84
69
50
39
20
3
3
2
1

ISS Passover

Visibility (miles)

8
8
9
9
9
9
8
9
9
9
9
9
9
9
9
9
9
9
9
6
3
0
3
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
Snow
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Moderate Rain
Light Rain
Light Rain
Light Rain
Light Rain
Snow
Snow
Snow
Snow
None

Precipitation Probability (%)

73
81
72
80
92
95
95
91
72
70
79
90
95
95
95
95
95
95
95
75
50
46
39
26

Precipitation Amount (mm)

0.4
0.5
0.3
0.5
0.6
0.7
0.8
0.6
0.3
0.3
0.4
0.6
1.1
1.8
2.6
1.3
1
1
0.8
0.5
0.2
0.2
0.1
0

Wind Speed/Direction (mph)

13
14
16
18
17
16
15
15
14
14
13
13
12
10
10
12
13
13
13
14
14
15
16
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-8
-3
-5
-7
-6
-6
-6
-5
-4
-3
-2
-1
-0
-2
-2
-3
-3
-4
-4
-6
-7
-8
-8
-8

Dew Point (°C)

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

Relative Humidity (%)

73
76
79
83
86
91
94
96
96
98
91
88
85
82
79
77
76
75
75
80
86
91
86
81

Pressure (mb)

1008
1007
1005
1004
1002
1001
1000
999
998
997
996
995
994
995
997
998
998
997
997
998
998
999
1001
1003

Ozone (du)

311
314
317
319
321
323
325
328
331
333
341
348
355
358
361
364
369
373
378
383
388
393
392
391

Friday 19

New Moon 1%

08:24

16:22

19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 OK
03 OK
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 07:28, Set: 16:12, Transit: 11:50. Moon - Rise: 08:24, Set: 16:22. Civil Dark: 16:46 - 06:54. Nautical Dark: 17:24 - 06:16. Astro Dark: 17:59 - 05:41

Total Clouds (% Sky Obscured)

87
79
70
57
47
35
22
16
10
34
59
76
80
85
95
95
95
95

Low Clouds (% Sky Obscured)

87
79
70
57
47
35
22
16
10
34
24
7
8
6
5
17
26
32

Medium Clouds (% Sky Obscured)

35
34
35
35
26
19
13
10
8
17
24
30
35
40
46
55
66
88

High Clouds (% Sky Obscured)

0
0
0
0
0
0
1
2
2
10
13
19
25
28
65
80
85
90

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

43
55
54
46
46
39
27
16
10
11
10
6
3
1
0
5
8
11

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-9
-13
-14
-13
-14
-13
-14
-14
-14
-13
-13
-13
-13
-14
-13
-12
-13
-12

Dew Point (°C)

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

Relative Humidity (%)

76
76
76
76
77
79
80
82
83
87
87
88
88
87
83
80
79
77

Pressure (mb)

1005
1006
1008
1009
1011
1013
1015
1016
1018
1019
1020
1022
1023
1023
1024
1024
1024
1023

Ozone (du)

391
384
377
370
362
354
346
344
342
340
338
337
335
330
325
320
316
313

Forecast for Domaine-Joyeux, Montérégie, Canada (45.22,-73.09)

Generated: 13/12/25 19:43:55. Forecast: 13/12/25 to 19/12/25. Timezone: UTC-5.00