Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 16

Waning Crescent 0%

05:47

19:05

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 OK
12 OK
13 OK
14 OK
15 Good
16 Good
17 Good
18 Good

Sun - Rise: 06:03, Set: 19:42, Transit: 12:53. Moon - Rise: 05:47, Set: 19:05. Civil Dark: 20:13 - 05:32. Nautical Dark: 20:51 - 04:54. Astro Dark: 21:32 - 04:13

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
96
93
97
97
100
100
76
51
62
46
29
34
24
6
5
0
0

Low Clouds (% Sky Obscured)

67
74
66
59
68
63
84
86
82
81
74
78
87
69
51
62
45
26
34
24
6
5
0
0

Medium Clouds (% Sky Obscured)

100
97
89
87
88
78
62
50
45
61
46
1
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
78
100
100
100
100
97
46
8
55
41
74
75
36
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

6
9
3
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
1
4
23
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

Light Rain
None
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 (%)

90
75
87
41
30
19
16
15
13
6
2
1
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.7
0
0.6
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
2
2
4
5
5
4
5
4
4
4
4
4
5
8
9
8
8
7
7
6
6
5
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

9
8
8
8
7
7
6
6
6
6
6
6
6
7
8
10
11
12
14
16
16
17
17
17

Dew Point (°C)

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

Relative Humidity (%)

95
95
96
98
98
98
96
96
96
96
96
94
93
90
80
70
65
60
56
53
50
48
48
49

Pressure (mb)

1006
1007
1008
1008
1008
1008
1009
1009
1009
1010
1011
1012
1013
1014
1015
1016
1016
1016
1016
1016
1016
1016
1016
1016

Ozone (du)

321
321
321
322
323
325
327
327
332
336
340
341
342
340
334
335
338
338
339
343
344
342
340
337

Friday 17

New Moon 3%

06:13

20:28

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

Sun - Rise: 06:01, Set: 19:43, Transit: 12:53. Moon - Rise: 06:13, Set: 20:28. Civil Dark: 20:15 - 05:30. Nautical Dark: 20:53 - 04:52. Astro Dark: 21:34 - 04:10

Total Clouds (% Sky Obscured)

0
0
0
0
0
2
28
60
52
67
38
30
36
38
56
64
55
56
56
56
73
70
100
93

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
4
22
38
30
5
24
24
17
0
0
0
0
0
0
2
15

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
4
12
0
0
0
0
0
0
34
48
83
91

High Clouds (% Sky Obscured)

0
0
0
0
0
2
13
35
31
34
22
13
24
17
56
64
55
56
56
56
73
70
100
90

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
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
0
0
0
9
14
47

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
4
4
4
4
4
3
2
2
3
4
5
8
12
16
19
19
20
21
21
21
21
20

Chance of Frost

Temperature (°C)

15
13
12
11
10
10
9
9
8
8
8
8
9
11
14
16
17
18
19
20
20
20
20
18

Feels Like (°C)

16
13
12
11
10
10
9
8
7
7
6
8
8
10
12
12
13
13
14
14
14
14
14
13

Dew Point (°C)

7
6
6
6
6
6
5
5
5
5
6
6
7
8
9
10
9
9
10
11
11
12
13
12

Relative Humidity (%)

56
63
65
71
74
77
77
78
79
82
85
88
90
83
73
65
60
56
54
56
56
59
63
64

Pressure (mb)

1017
1017
1018
1018
1018
1017
1017
1017
1017
1017
1016
1016
1016
1016
1015
1014
1013
1012
1011
1010
1009
1007
1006
1006

Ozone (du)

335
333
333
338
342
343
345
345
346
347
342
339
338
336
337
336
339
339
334
331
333
333
332
335

Saturday 18

Waxing Crescent 8%

06:48

21:54

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: 06:00, Set: 19:45, Transit: 12:53. Moon - Rise: 06:48, Set: 21:54. Civil Dark: 20:16 - 05:28. Nautical Dark: 20:54 - 04:50. Astro Dark: 21:36 - 04:08

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
97
96
100
87
74
63
60
57

Low Clouds (% Sky Obscured)

15
42
71
100
95
100
100
10
10
26
59
72
61
31
5
5
41
65
51
44
37
29
23
16

Medium Clouds (% Sky Obscured)

100
100
100
71
77
100
100
100
100
100
100
100
100
100
100
100
96
90
100
82
64
56
55
57

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
39
30
30
35
35
30
25
25
20

ISS Passover

Visibility (miles)

9
6
9
9
9
9
9
3
4
3
8
6
9
9
8
3
9
9
9
6
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

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

Precipitation Probability (%)

81
55
47
63
36
38
95
95
95
95
84
95
93
79
73
61
23
10
12
9
21
29
17
18

Precipitation Amount (mm)

0.5
0.2
0
0.2
0
0
1.1
2
1.4
0.8
0.4
0.9
0.4
0.3
0.4
0.3
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

20
20
18
17
17
16
15
15
14
14
12
13
14
10
11
10
11
11
13
13
12
13
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

12
10
10
9
8
8
8
7
7
5
4
3
-1
0
0
1
1
3
3
3
3
4
4
3

Dew Point (°C)

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

Relative Humidity (%)

67
72
74
74
72
76
77
87
91
88
88
87
85
80
83
85
78
67
60
59
50
46
50
46

Pressure (mb)

1006
1005
1005
1005
1005
1004
1004
1004
1005
1006
1007
1008
1009
1010
1010
1010
1010
1010
1010
1009
1009
1009
1009
1009

Ozone (du)

333
331
330
332
331
332
332
331
332
331
330
329
332
332
329
330
330
333
334
339
342
341
346
352

Sunday 19

Waxing Crescent 16%

07:33

23:18

19 OK
20 Bad
21 OK
22 OK
23 OK
00 Good
01 Good
02 OK
03 OK
04 OK
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: 05:58, Set: 19:46, Transit: 12:53. Moon - Rise: 07:33, Set: 23:18. Civil Dark: 20:17 - 05:26. Nautical Dark: 20:56 - 04:48. Astro Dark: 21:37 - 04:06

Total Clouds (% Sky Obscured)

29
39
25
15
10
10
10
17
24
40
60
69
52
74
76
88
89
83
77
73
65
63
57
57

Low Clouds (% Sky Obscured)

1
25
25
15
10
10
10
17
24
40
60
69
38
74
74
88
89
83
77
73
65
63
57
50

Medium Clouds (% Sky Obscured)

25
20
25
15
10
10
10
17
24
40
60
17
7
8
4
4
1
3
2
2
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
3
1
1
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
Snow
Snow
Snow
None
None
None
None
None
None

Precipitation Probability (%)

12
9
10
4
6
2
0
1
1
0
0
0
1
21
29
33
40
31
6
2
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-4
-4
-5
-6
-7
-8
-9
-9
-10
-10
-10
-10
-10
-10
-10
-12
-9
-8
-12
-12
-14
-15
-16
-16

Relative Humidity (%)

46
49
50
51
51
49
49
51
52
52
53
53
52
50
47
40
50
50
34
32
26
23
21
21

Pressure (mb)

1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1023
1024
1024
1025
1025
1025
1025
1025
1025
1025

Ozone (du)

362
374
386
398
408
408
407
411
415
420
425
427
428
428
427
427
428
436
447
451
454
456
464
468

Monday 20

Waxing Crescent 26%

08:32

00:33

19 Bad
20 Good
21 Good
22 Good
23 Good
00 Good
01 Good
02 OK
03 Good
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: 05:56, Set: 19:47, Transit: 12:52. Moon - Rise: 08:32, Set: 00:33. Civil Dark: 20:19 - 05:25. Nautical Dark: 20:57 - 04:46. Astro Dark: 21:39 - 04:03

Total Clouds (% Sky Obscured)

53
12
7
0
0
0
6
44
10
91
79
89
92
97
99
100
96
93
89
93
96
100
99
98

Low Clouds (% Sky Obscured)

35
12
7
0
0
0
0
0
0
0
0
0
0
0
0
0
5
8
12
48
59
68
77
82

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
4
5
5
56
21
54
67
83
100
92
85
78
84
91
97
92
85

High Clouds (% Sky Obscured)

0
0
0
0
0
0
1
10
1
25
9
29
30
40
75
90
92
85
77
71
68
61
66
74

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
7

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
Very Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
11
15
20
30
40
50
64
82

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
0.4

Wind Speed/Direction (mph)

8
7
6
5
4
3
3
4
5
5
5
6
7
9
11
13
14
15
16
17
15
14
13
11

Chance of Frost

Temperature (°C)

4
3
3
2
1
1
1
0
-0
-0
-1
-1
0
1
3
4
6
6
7
8
8
8
9
8

Feels Like (°C)

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

Dew Point (°C)

-15
-14
-13
-13
-13
-12
-12
-11
-9
-8
-8
-8
-9
-9
-9
-9
-9
-7
-6
-4
-4
-3
-3
-0

Relative Humidity (%)

24
28
31
32
34
37
39
43
50
55
57
57
52
47
42
38
35
38
40
43
44
44
45
55

Pressure (mb)

1026
1026
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1026
1025
1024
1022
1021
1019
1017
1016
1015
1013
1013

Ozone (du)

472
476
466
458
448
435
418
413
410
409
408
410
410
408
407
405
404
402
400
398
397
395
393
391

Tuesday 21

Waxing Crescent 37%

09:43

01:34

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

Sun - Rise: 05:54, Set: 19:48, Transit: 12:52. Moon - Rise: 09:43, Set: 01:34. Civil Dark: 20:20 - 05:23. Nautical Dark: 20:59 - 04:44. Astro Dark: 21:41 - 04:01

Total Clouds (% Sky Obscured)

94
93
93
94
76
54
30
22
22
26
34
41
49
40
31
25
30
39
59
50
43
35
43
50

Low Clouds (% Sky Obscured)

75
77
78
80
53
27
3
11
19
25
34
41
49
40
31
25
29
26
22
17
12
7
5
2

Medium Clouds (% Sky Obscured)

79
65
53
43
38
35
30
22
13
0
0
0
0
0
0
0
0
1
1
1
0
0
1
3

High Clouds (% Sky Obscured)

82
88
84
80
76
54
30
22
22
2
1
0
0
0
0
0
0
0
0
7
17
22
26
33

ISS Passover

Visibility (miles)

4
2
4
6
8
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

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

Precipitation Probability (%)

95
95
95
93
77
56
22
15
7
0
0
0
0
1
1
1
6
7
2
2
1
0
0
0

Precipitation Amount (mm)

0.8
1
0.9
0.7
0.5
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

2
3
1
2
3
3
2
3
2
1
1
0
0
1
1
1
2
2
3
3
6
7
7
7

Dew Point (°C)

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

Relative Humidity (%)

69
85
88
93
96
93
93
93
93
91
91
88
83
82
72
62
55
51
46
43
42
42
41
45

Pressure (mb)

1013
1012
1012
1012
1012
1013
1014
1015
1016
1016
1017
1018
1019
1020
1020
1021
1021
1021
1021
1021
1021
1021
1020
1021

Ozone (du)

389
386
387
389
390
393
396
400
402
405
407
410
412
414
410
407
403
401
399
397
396
395
394
394

Wednesday 22

Waxing Crescent 49%

11:01

02:20

19 Bad
20 OK
21 Good
22 Good
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: 05:53, Set: 19:50, Transit: 12:52. Moon - Rise: 11:01, Set: 02:20. Civil Dark: 20:21 - 05:21. Nautical Dark: 21:00 - 04:42. Astro Dark: 21:43 - 03:59

Total Clouds (% Sky Obscured)

49
46
13
15
77
98
100
100
98
100
98
99
100
100
100
100
86
70
55

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
1
2
4
11
26
39
46
45
43
35
30
20

Medium Clouds (% Sky Obscured)

4
21
13
15
66
73
80
78
77
75
73
72
72
69
66
57
38
29
20

High Clouds (% Sky Obscured)

40
46
13
15
77
92
100
100
98
99
96
98
99
98
96
95
74
54
33

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

8
7
6
5
4
2
1
2
2
2
3
3
3
3
4
6
7
8
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

7
7
4
4
4
4
4
3
2
2
2
2
2
2
3
3
3
4
4

Dew Point (°C)

-1
-1
-1
-1
0
-1
-0
-1
-1
-1
-1
-1
-1
-0
0
0
1
0
-0

Relative Humidity (%)

50
54
57
60
65
65
67
68
71
71
72
71
69
68
64
58
55
48
43

Pressure (mb)

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

Ozone (du)

393
393
394
394
395
395
395
395
395
396
396
398
399
400
400
401
401
399
397

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

Generated: 16/04/26 18:52:13. Forecast: 16/04/26 to 22/04/26. Timezone: UTC-4.00