Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 18

Waning Crescent 1%

06:35

15:32

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

Sun - Rise: 07:00, Set: 16:19, Transit: 11:39. Moon - Rise: 06:35, Set: 15:32. Civil Dark: 16:52 - 06:27. Nautical Dark: 17:28 - 05:51. Astro Dark: 18:03 - 05:16

Total Clouds (% Sky Obscured)

38
40
44
35
44
46
32
27
19
26
30
45
62
59
62
63
46
36
35
34
36
48
60
72

Low Clouds (% Sky Obscured)

38
40
44
35
44
43
24
11
7
22
30
45
60
59
62
63
46
36
35
34
35
36
32
31

Medium Clouds (% Sky Obscured)

8
15
14
14
21
24
18
17
9
7
3
0
0
0
0
0
0
1
1
0
3
26
31
38

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
1
4
2
2
8
14
3
2
4
2
2
1
2
1
2
14
32

ISS Passover

Visibility (miles)

9
9
9
9
9
9
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
6
16
12
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
2
0
0
0
0
0
0
0
0
0
0
0
0
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-4
-4
-4
-3
-3
-4
-4
-4
-4
-4
-4
-4
-4
-3
-3
-3
-3
-2
-2
-2
-2
-2
-2
-2

Relative Humidity (%)

89
91
89
89
89
89
91
89
91
89
89
83
80
80
78
77
77
81
86
89
89
89
91
92

Pressure (mb)

1020
1020
1020
1020
1021
1021
1021
1022
1022
1023
1023
1024
1024
1024
1024
1024
1024
1024
1024
1025
1025
1025
1025
1025

Ozone (du)

316
311
308
307
306
305
306
305
304
304
305
306
306
307
305
304
303
305
304
305
306
307
309
311

Wednesday 19

Waning Crescent 0%

07:41

16:03

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

Sun - Rise: 07:01, Set: 16:18, Transit: 11:40. Moon - Rise: 07:41, Set: 16:03. Civil Dark: 16:51 - 06:29. Nautical Dark: 17:27 - 05:52. Astro Dark: 18:02 - 05:17

Total Clouds (% Sky Obscured)

80
65
59
57
64
59
83
65
43
47
43
33
37
51
69
56
54
72
65
88
86
65
85
83

Low Clouds (% Sky Obscured)

39
41
47
50
59
59
64
51
34
41
32
2
3
6
3
2
2
2
2
2
2
1
2
2

Medium Clouds (% Sky Obscured)

61
47
37
30
28
16
65
39
23
25
19
18
7
5
3
3
11
2
10
53
44
45
57
73

High Clouds (% Sky Obscured)

20
3
3
25
46
59
31
5
5
11
13
12
27
43
69
56
54
72
65
88
23
34
71
79

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
16
44
65
95
95
95
95
95
95
100
100
88
65
0
0
0
0
0
1
10
41

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
0
0
0
0
0
0
0
0
0
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)

3
4
3
3
3
3
3
3
4
3
3
4
4
3
3
3
3
3
3
3
3
2
2
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
92
94
92
92
94
92
92
92
92
87
83
80
77
76
74
76
81
89
93
92
96
94
94

Pressure (mb)

1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1024
1023
1023
1022
1022
1022
1022
1021
1021
1021

Ozone (du)

319
318
315
312
312
313
312
311
308
305
304
303
300
298
299
299
297
294
293
292
292
291
295
299

Thursday 20

New Moon 2%

08:44

16:42

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
19 Bad
20 Bad
21 Bad

Sun - Rise: 07:02, Set: 16:17, Transit: 11:40. Moon - Rise: 08:44, Set: 16:42. Civil Dark: 16:50 - 06:30. Nautical Dark: 17:26 - 05:53. Astro Dark: 18:02 - 05:18

Total Clouds (% Sky Obscured)

97
100
100
100
100
100
96
93
95
100
100
95
99
100
99
99
99
94
88
61
51
59
66
75

Low Clouds (% Sky Obscured)

1
1
1
21
29
39
50
54
45
77
62
81
98
92
97
97
74
59
61
56
41
50
59
68

Medium Clouds (% Sky Obscured)

53
64
88
88
100
100
66
74
87
76
75
62
93
57
40
98
74
84
37
1
0
0
0
0

High Clouds (% Sky Obscured)

97
100
100
100
100
9
70
50
65
51
65
40
35
29
35
35
40
35
10
5
24
35
4
2

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
5
7
3
6
6
9
2
1
2

Fog (%)

51
54
50
71
84
91
83
88
73
67
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
2
12
7
17
21
33
59
84
95
95
82
54
32
18
19
21
22

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.5
0.7
0.9
0.6
0.3
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
91
91
92
92
91
91
91
91
89
84
86
86
88
88
93
94
96
98
98
100
100
98
100

Pressure (mb)

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

Ozone (du)

300
302
305
306
305
308
310
309
309
311
314
318
315
314
312
311
312
313
308
305
302
303
300
300

Friday 21

Waxing Crescent 6%

09:41

17:31

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

Sun - Rise: 07:04, Set: 16:17, Transit: 11:40. Moon - Rise: 09:41, Set: 17:31. Civil Dark: 16:49 - 06:31. Nautical Dark: 17:26 - 05:55. Astro Dark: 18:01 - 05:19

Total Clouds (% Sky Obscured)

64
39
29
33
53
63
76
85
94
96
86
69
58
50
43
51
43
43
57
72
61
22
12
7

Low Clouds (% Sky Obscured)

59
36
29
16
7
2
18
28
44
42
36
26
27
18
19
30
19
21
50
72
61
20
11
4

Medium Clouds (% Sky Obscured)

0
0
0
14
28
39
45
78
94
52
51
35
20
10
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

1
0
0
0
7
2
5
5
5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

1
4
9
9
9
9
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
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 (%)

6
3
0
0
0
0
0
0
1
3
6
8
10
11
8
10
9
2
2
1
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)

5
6
6
5
4
4
4
4
4
4
4
4
4
5
6
6
6
6
5
5
6
6
6
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

100
98
98
98
98
94
92
92
92
91
89
84
77
73
68
64
63
68
71
73
75
80
81
81

Pressure (mb)

1011
1011
1011
1011
1012
1012
1012
1012
1013
1013
1013
1014
1014
1014
1014
1014
1015
1015
1016
1017
1017
1018
1018
1019

Ozone (du)

300
300
303
302
301
300
300
300
300
298
299
301
303
301
301
303
303
304
305
305
305
306
307
307

Saturday 22

Waxing Crescent 11%

10:30

18:29

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

Sun - Rise: 07:05, Set: 16:16, Transit: 11:41. Moon - Rise: 10:30, Set: 18:29. Civil Dark: 16:49 - 06:32. Nautical Dark: 17:25 - 05:56. Astro Dark: 18:01 - 05:20

Total Clouds (% Sky Obscured)

43
55
62
66
71
61
74
58
50
21
24
23
76
21
29
38
59
75
83
90
97
93
90
83

Low Clouds (% Sky Obscured)

5
5
6
4
2
3
5
9
13
8
5
6
14
21
29
30
52
54
54
62
64
69
71
71

Medium Clouds (% Sky Obscured)

24
26
46
47
52
28
56
41
32
12
19
23
76
21
29
38
55
70
77
83
88
82
79
74

High Clouds (% Sky Obscured)

0
0
0
7
15
20
15
9
4
7
10
12
8
4
0
2
6
10
7
5
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
6
3

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
0
0
0
0
0
0
0
0
0
3
5
6
20
28
36

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
5
4
3
4
4
4
5
4
4
4
5
5
6
6
6
5
4
3
3
4
4
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
78
78
78
78
80
83
83
83
81
78
74
71
70
68
68
71
76
78
80
81
81
88
93

Pressure (mb)

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

Ozone (du)

309
309
310
312
315
315
316
316
316
316
315
315
316
315
314
311
310
310
310
311
312
313
313
314

Sunday 23

Waxing Crescent 18%

11:10

19:35

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
19 Bad
20 Bad
21 Bad

Sun - Rise: 07:06, Set: 16:15, Transit: 11:41. Moon - Rise: 11:10, Set: 19:35. Civil Dark: 16:48 - 06:33. Nautical Dark: 17:25 - 05:57. Astro Dark: 18:00 - 05:21

Total Clouds (% Sky Obscured)

73
68
64
67
65
68
72
76
78
85
95
100
100
100
100
84
70
53
50
50
48
62
80
85

Low Clouds (% Sky Obscured)

65
59
53
49
45
41
35
29
27
52
64
70
70
64
55
64
70
53
50
50
48
62
65
70

Medium Clouds (% Sky Obscured)

50
30
9
5
3
0
0
0
0
3
7
10
12
9
10
10
15
15
15
15
20
41
63
73

High Clouds (% Sky Obscured)

0
0
0
0
1
1
2
5
7
35
66
95
100
100
100
84
70
53
50
50
48
60
31
0

ISS Passover

Visibility (miles)

0
2
4
6
7
8
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
0
0
0
0
0
0

Precipitation Type

Snow
Snow
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

43
49
52
47
41
30
23
16
7
9
7
1
5
5
3
4
2
0
5
8
11
29
40
46

Precipitation Amount (mm)

0.1
0.2
0.2
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
7
8
7
7
7
7
7
7
7
7
7
7
7
7
6
5
6
5
5
4
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
98
96
93
91
89
88
88
88
86
83
77
73
68
63
58
63
68
75
77
80
86
85
86

Pressure (mb)

1015
1015
1015
1014
1014
1014
1014
1015
1015
1016
1016
1016
1016
1016
1016
1015
1015
1015
1015
1015
1014
1014
1013
1013

Ozone (du)

315
315
314
314
315
315
316
315
314
313
313
314
315
315
315
315
315
316
317
318
318
319
320
321

Monday 24

Waxing Crescent 27%

11:41

20:44

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: 07:08, Set: 16:15, Transit: 11:41. Moon - Rise: 11:41, Set: 20:44. Civil Dark: 16:48 - 06:35. Nautical Dark: 17:24 - 05:58. Astro Dark: 18:00 - 05:22

Total Clouds (% Sky Obscured)

88
92
100
100
100
100
100
100
100
100
99
99
98
96
94
87
82
79
73
69
68

Low Clouds (% Sky Obscured)

77
82
90
90
90
89
90
92
95
95
95
93
92
90
87
85
82
79
73
69
68

Medium Clouds (% Sky Obscured)

79
89
100
100
100
100
96
92
88
88
89
90
61
31
1
2
2
4
2
2
2

High Clouds (% Sky Obscured)

12
20
35
23
10
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
6
3
0
0
0
0
0
0
0
3
6
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

Precipitation Type

None
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

46
52
61
73
78
83
83
80
73
66
54
35
29
24
12
17
17
16
16
18
17

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

6
6
6
7
7
7
7
7
7
7
7
7
7
7
7
7
6
6
5
5
4

Chance of Frost

Temperature (°C)

2
2
2
3
2
2
2
2
2
2
2
2
2
3
3
4
4
4
4
3
3

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
88
89
89
93
94
96
96
96
96
96
96
96
88
80
72
72
72
72
75
80

Pressure (mb)

1012
1012
1011
1010
1010
1010
1010
1010
1010
1011
1012
1012
1013
1014
1014
1014
1015
1016
1017
1018
1019

Ozone (du)

322
326
330
334
334
334
335
334
333
332
333
333
333
332
332
332
331
331
330
326
322

Forecast for Le Vieux-Port, Montréal, Canada (45.50,-73.57)

Generated: 18/11/25 22:05:06. Forecast: 18/11/25 to 24/11/25. Timezone: UTC-5.00