Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 17

Waxing Crescent 2%

05:22

22:10

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

Sun - Rise: 05:20, Set: 20:21, Transit: 12:50. Moon - Rise: 05:22, Set: 22:10. Civil Dark: 20:56 - 04:45. Nautical Dark: 21:41 - 04:00. Astro Dark: 22:35 - 03:06

Total Clouds (% Sky Obscured)

86
89
68
69
58
44
42
48
48
56
39
29
12
24
13
27
25
3
25
30
30
33
100
100

Low Clouds (% Sky Obscured)

68
70
68
60
53
44
41
29
29
39
30
21
12
23
10
27
25
1
0
1
0
0
0
0

Medium Clouds (% Sky Obscured)

0
32
9
0
12
18
19
35
37
40
29
23
3
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
20
25
30
29
100
100

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 (%)

3
0
0
0
0
0
0
0
0
0
0
1
1
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)

11
13
12
11
11
10
10
10
10
10
10
11
12
12
12
11
11
9
8
6
4
5
6
5

Chance of Frost

Temperature (°C)

16
15
15
15
15
14
14
14
15
16
18
18
19
20
21
21
21
21
21
20
19
17
16
15

Feels Like (°C)

13
13
13
14
13
13
13
13
14
15
16
16
17
18
18
18
19
20
19
18
17
15
13
12

Dew Point (°C)

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

Relative Humidity (%)

89
89
90
95
92
95
90
86
76
68
58
48
44
42
40
38
38
38
40
48
57
62
61
60

Pressure (mb)

1008
1008
1008
1009
1009
1010
1011
1012
1013
1014
1015
1015
1015
1016
1016
1016
1017
1017
1018
1019
1019
1020
1021
1021

Ozone (du)

336
341
349
359
365
371
378
381
379
380
379
372
363
359
355
353
353
353
351
351
351
348
348
348

Monday 18

Waxing Crescent 6%

06:16

23:20

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 OK
16 Bad
17 Bad
18 Bad
19 OK
20 Bad
21 Good
22 OK
23 Bad

Sun - Rise: 05:19, Set: 20:22, Transit: 12:50. Moon - Rise: 06:16, Set: 23:20. Civil Dark: 20:57 - 04:44. Nautical Dark: 21:42 - 03:58. Astro Dark: 22:37 - 03:04

Total Clouds (% Sky Obscured)

100
87
95
88
85
96
99
66
100
99
92
87
93
80
63
38
49
63
60
20
51
11
31
26

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
1
0
12
75
80
67
82
43
17
0
0
0
22
0
0
0
0
0

Medium Clouds (% Sky Obscured)

5
0
55
79
83
90
97
66
99
90
63
60
72
17
17
16
4
2
11
1
16
11
31
26

High Clouds (% Sky Obscured)

100
84
83
52
43
81
93
66
66
89
30
55
56
61
52
21
49
63
60
8
6
5
5
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
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
1
5
13
5
0
0
0
0
0
0
0
0
0
0
0
0
0
17

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)

4
3
4
4
5
5
5
6
7
6
6
6
7
6
7
8
9
9
7
5
6
6
7
7

Chance of Frost

Temperature (°C)

14
13
12
12
12
12
11
12
12
13
15
16
19
21
23
25
26
27
27
27
26
25
23
23

Feels Like (°C)

12
11
10
10
10
10
9
8
10
10
12
14
17
19
22
24
26
27
28
29
29
26
26
25

Dew Point (°C)

6
5
5
6
6
7
5
5
3
5
8
8
11
15
14
16
17
19
21
22
23
23
22
21

Relative Humidity (%)

60
59
60
65
68
71
66
62
53
59
64
57
62
68
57
57
58
63
67
76
84
88
92
89

Pressure (mb)

1022
1022
1022
1023
1023
1023
1023
1024
1023
1023
1023
1022
1021
1020
1019
1018
1017
1016
1015
1015
1014
1014
1014
1014

Ozone (du)

347
346
344
344
342
344
343
339
339
339
339
341
336
333
330
329
328
326
323
321
321
322
323
325

Tuesday 19

Waxing Crescent 13%

07:25

No Set

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

Sun - Rise: 05:18, Set: 20:23, Transit: 12:50. Moon - Rise: 07:25, Set: No Set. Civil Dark: 20:58 - 04:42. Nautical Dark: 21:44 - 03:57. Astro Dark: 22:39 - 03:02

Total Clouds (% Sky Obscured)

27
59
23
53
100
20
87
100
84
90
100
87
98
100
81
72
80
23
35
68
64
90
76
73

Low Clouds (% Sky Obscured)

13
0
0
23
11
0
19
53
55
66
55
59
83
59
38
40
44
12
6
0
0
0
0
18

Medium Clouds (% Sky Obscured)

24
0
0
53
34
20
57
75
35
65
85
69
67
50
15
16
58
8
10
11
1
2
3
22

High Clouds (% Sky Obscured)

0
44
23
53
100
20
62
100
66
76
100
10
85
100
62
57
60
20
24
52
56
90
76
73

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

Precipitation Probability (%)

32
18
5
7
4
0
0
42
62
73
73
21
40
62
44
8
3
1
2
0
1
4
4
41

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.2
0.2
0.4
0.5
0
0
0.2
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

23
23
23
22
22
22
22
22
22
22
22
22
24
25
25
26
28
28
28
27
26
26
25
25

Feels Like (°C)

25
25
24
23
22
22
21
23
22
22
22
22
24
24
24
25
27
27
27
27
25
25
23
24

Dew Point (°C)

21
21
21
21
21
20
20
20
19
18
18
17
17
17
16
17
18
19
20
20
20
19
18
18

Relative Humidity (%)

88
89
92
92
94
89
88
85
81
78
74
71
63
61
56
55
56
58
61
63
66
65
65
66

Pressure (mb)

1014
1014
1014
1013
1013
1013
1013
1014
1014
1014
1014
1013
1013
1013
1012
1011
1010
1010
1009
1009
1009
1009
1009
1008

Ozone (du)

328
327
326
325
326
329
331
332
333
329
330
330
331
329
327
324
324
319
318
318
317
315
315
314

Wednesday 20

Waxing Crescent 23%

08:44

00:14

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 OK
17 OK
18 OK
19 OK
20 OK
21 OK
22 OK
23 OK

Sun - Rise: 05:17, Set: 20:24, Transit: 12:50. Moon - Rise: 08:44, Set: 00:14. Civil Dark: 20:59 - 04:41. Nautical Dark: 21:45 - 03:56. Astro Dark: 22:41 - 03:00

Total Clouds (% Sky Obscured)

83
79
98
96
94
95
96
98
96
95
94
65
89
88
83
77
22
23
41
36
34
35
30
43

Low Clouds (% Sky Obscured)

35
49
49
45
37
75
83
88
87
89
94
18
10
10
8
7
8
13
33
15
20
29
30
34

Medium Clouds (% Sky Obscured)

51
63
48
36
23
36
64
56
86
84
77
12
6
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

80
79
93
85
76
64
48
36
34
30
26
28
32
36
32
28
2
0
0
0
0
0
0
33

ISS Passover

Visibility (miles)

9
9
9
9
9
8
7
5
9
6
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
Very Light Rain
Very Light Rain
Light Rain
Very Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

49
43
63
69
82
73
71
63
95
94
73
55
31
8
6
3
1
1
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0.3
0.3
0.4
0.3
0.4
0.3
1.1
0.4
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

15
15
14
13
12
12
13
13
14
14
14
14
15
16
17
17
16
15
14
14
14
13
12
12

Chance of Frost

Temperature (°C)

24
23
22
22
21
21
21
21
21
21
21
21
22
23
23
22
20
19
18
16
14
13
11
10

Feels Like (°C)

23
22
22
21
21
20
20
20
20
19
19
19
20
19
19
17
15
16
15
13
11
10
9
7

Dew Point (°C)

18
19
19
19
20
20
20
20
20
20
20
19
15
13
12
10
8
6
5
5
4
2
1
-0

Relative Humidity (%)

71
76
81
87
91
92
91
91
91
95
94
86
65
53
49
48
45
42
43
46
49
48
48
48

Pressure (mb)

1008
1008
1008
1008
1007
1007
1007
1007
1007
1007
1007
1007
1008
1008
1008
1009
1011
1012
1013
1014
1015
1017
1019
1020

Ozone (du)

314
314
312
312
313
314
316
318
320
321
320
321
320
320
322
324
325
328
324
327
325
326
327
329

Thursday 21

Waxing Crescent 33%

10:05

00:54

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

Sun - Rise: 05:16, Set: 20:25, Transit: 12:50. Moon - Rise: 10:05, Set: 00:54. Civil Dark: 21:01 - 04:40. Nautical Dark: 21:47 - 03:54. Astro Dark: 22:43 - 02:58

Total Clouds (% Sky Obscured)

50
60
60
55
40
34
16
8
4
5
4
4
5
6
7
9
8
14
21
28
31
32
23
8

Low Clouds (% Sky Obscured)

43
58
60
55
40
34
16
8
4
5
2
4
5
6
7
9
8
14
21
28
21
10
0
0

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

50
60
60
55
40
34
16
1
0
0
0
0
0
0
0
0
0
0
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
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
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)

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

Chance of Frost

Temperature (°C)

9
8
8
7
7
6
6
6
6
7
9
10
11
13
14
14
14
15
14
14
13
12
12
11

Feels Like (°C)

7
6
5
5
5
4
3
4
4
5
7
8
10
11
12
12
12
12
12
13
14
10
11
11

Dew Point (°C)

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

Relative Humidity (%)

52
52
51
53
55
57
59
55
50
47
43
39
35
31
29
29
29
29
35
41
49
54
57
63

Pressure (mb)

1021
1022
1023
1023
1024
1025
1026
1027
1027
1028
1028
1028
1027
1027
1026
1026
1026
1026
1026
1026
1027
1027
1028
1028

Ozone (du)

333
337
339
341
342
345
347
349
353
356
361
362
367
370
369
369
370
370
371
371
372
373
374
374

Friday 22

Waxing Crescent 45%

11:24

01:24

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

Sun - Rise: 05:15, Set: 20:26, Transit: 12:51. Moon - Rise: 11:24, Set: 01:24. Civil Dark: 21:02 - 04:39. Nautical Dark: 21:48 - 03:53. Astro Dark: 22:45 - 02:56

Total Clouds (% Sky Obscured)

6
3
6
9
15
14
12
9
12
14
17
26
34
39
39
54
63
59
55
50
47
34
30
35

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
2
2
2
8
16
28
28
26
24
16
9
5
4
2
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
2
3
5
8
9
11
11
15
14
12
11
11
13
13
16
15

High Clouds (% Sky Obscured)

0
0
0
0
0
1
1
1
1
0
0
0
0
0
0
1
1
2
2
4
5
4
12
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
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
1
0
5
7
7
8
6
1
2
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

11
10
10
8
8
9
8
8
8
11
12
12
12
13
14
19
19
18
18
18
18
15
15
15

Dew Point (°C)

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

Relative Humidity (%)

66
68
72
73
74
75
70
64
60
57
53
50
46
43
41
40
40
39
43
49
53
57
62
68

Pressure (mb)

1029
1029
1029
1029
1030
1030
1030
1031
1031
1031
1030
1030
1030
1029
1028
1028
1027
1027
1027
1027
1027
1027
1028
1028

Ozone (du)

373
371
369
367
365
364
362
361
360
359
359
358
357
357
356
354
353
351
351
351
351
351
352
352

Saturday 23

First Quarter 56%

12:39

01:47

Sun - Rise: 05:14, Set: 20:27, Transit: 12:51. Moon - Rise: 12:39, Set: 01:47. Civil Dark: 21:03 - 04:38. Nautical Dark: 21:50 - 03:52. Astro Dark: 22:47 - 02:54

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

Generated: 16/05/26 23:37:02. Forecast: 17/05/26 to 23/05/26. Timezone: UTC-4.00