Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 2

Waxing Gibbous 100%

17:00

06:11

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

Sun - Rise: 06:28, Set: 17:43, Transit: 12:06. Moon - Rise: 17:00, Set: 06:11. Civil Dark: 18:13 - 05:59. Nautical Dark: 18:47 - 05:25. Astro Dark: 19:21 - 04:50

Total Clouds (% Sky Obscured)

4
4
4
2
4
6
6
4
4
11
16
24
25
30
15
3
18
21
23
70
81
39
51
50

Low Clouds (% Sky Obscured)

0
0
0
0
0
1
1
1
1
1
6
9
5
10
6
1
1
1
1
1
2
2
2
2

Medium Clouds (% Sky Obscured)

0
0
0
0
2
2
1
0
0
0
0
0
0
0
1
0
18
21
22
31
68
36
49
50

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
59
36
1
20
21

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)

3
3
3
2
2
3
3
4
6
7
7
8
8
8
7
5
3
4
4
4
5
5
5
4

Chance of Frost

Temperature (°C)

-20
-22
-25
-21
-22
-21
-19
-17
-15
-14
-12
-11
-10
-9
-9
-9
-10
-12
-12
-12
-12
-12
-13
-13

Feels Like (°C)

-22
-24
-26
-23
-24
-24
-21
-20
-18
-17
-16
-15
-15
-15
-14
-13
-12
-14
-14
-15
-15
-16
-15
-15

Dew Point (°C)

-23
-25
-28
-25
-25
-25
-23
-21
-19
-17
-16
-15
-14
-14
-13
-12
-13
-14
-14
-15
-15
-15
-15
-15

Relative Humidity (%)

76
72
72
72
73
72
72
72
74
74
73
72
71
69
75
78
81
81
83
83
81
79
81
83

Pressure (mb)

1037
1037
1037
1038
1038
1039
1040
1040
1040
1040
1039
1039
1038
1037
1037
1037
1037
1037
1036
1036
1035
1035
1034
1034

Ozone (du)

446
444
442
434
428
429
430
433
441
447
451
454
458
449
430
427
426
425
423
418
415
413
408
404

Tuesday 3

Full Moon 99%

18:13

06:30

02 Bad
03 Bad
04 Bad
05 Bad
06 Good
07 Good
08 OK
09 OK
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

Sun - Rise: 06:27, Set: 17:44, Transit: 12:05. Moon - Rise: 18:13, Set: 06:30. Civil Dark: 18:14 - 05:57. Nautical Dark: 18:48 - 05:23. Astro Dark: 19:23 - 04:48

Total Clouds (% Sky Obscured)

61
55
97
70
14
17
20
25
73
98
100
100
100
100
100
100
100
100
100
100
100
100
100
96

Low Clouds (% Sky Obscured)

3
2
2
2
3
4
2
1
2
6
7
11
2
40
62
57
64
48
38
34
41
15
20
15

Medium Clouds (% Sky Obscured)

61
55
60
29
2
5
5
5
8
15
43
45
100
100
100
100
100
99
96
100
100
100
100
89

High Clouds (% Sky Obscured)

54
55
96
34
2
2
12
19
69
97
100
100
100
100
100
100
99
96
100
100
100
100
100
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
2
1
3
5
3
1
1
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
1
10
10
3
5
6
16
6
3

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

Chance of Frost

Temperature (°C)

-12
-12
-12
-11
-11
-10
-10
-9
-7
-4
-2
0
1
2
2
1
1
0
-1
-1
-1
-1
-1
-1

Feels Like (°C)

-15
-14
-14
-15
-14
-13
-12
-11
-9
-7
-6
-4
-2
-2
-2
-1
-1
-3
-3
-4
-3
-4
-4
-4

Dew Point (°C)

-15
-14
-14
-13
-13
-12
-12
-12
-10
-7
-5
-3
-1
-0
0
1
0
-0
-1
-1
-1
-1
-1
-2

Relative Humidity (%)

83
85
85
85
85
85
83
80
79
79
79
81
86
88
91
96
96
98
96
96
96
98
98
98

Pressure (mb)

1033
1033
1032
1032
1032
1032
1032
1031
1031
1030
1029
1028
1027
1026
1026
1025
1024
1024
1023
1022
1022
1021
1021
1021

Ozone (du)

400
401
402
400
397
394
390
386
382
382
380
378
376
374
371
372
370
371
374
375
377
378
380
386

Wednesday 4

Waning Gibbous 97%

19:24

06:48

02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 OK
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 OK
01 OK

Sun - Rise: 06:25, Set: 17:46, Transit: 12:05. Moon - Rise: 19:24, Set: 06:48. Civil Dark: 18:15 - 05:55. Nautical Dark: 18:49 - 05:21. Astro Dark: 19:24 - 04:47

Total Clouds (% Sky Obscured)

56
48
72
70
70
75
49
47
11
43
25
30
59
64
52
56
93
95
98
100
61
43
29
34

Low Clouds (% Sky Obscured)

13
24
69
66
58
59
49
47
2
29
5
5
42
40
15
22
21
11
5
2
8
10
22
25

Medium Clouds (% Sky Obscured)

56
42
0
0
0
17
0
0
0
2
14
30
16
38
23
28
63
70
78
70
49
26
7
6

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
2
2
25
30
40
23
3
2
52
85
95
100
52
27
0
8

ISS Passover

Visibility (miles)

1
8
4
9
9
9
9
9
3
0
0
0
0
9
9
9
9
9
9
9
9
8
6
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 (%)

4
0
10
1
0
0
0
0
0
1
5
0
0
0
0
0
0
0
0
2
0
0
3
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
4
5
7
8
9
8
8
10
10
10
10
10
9
7
6
4
4
4
4
4
4
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

100
100
98
98
96
92
92
96
100
100
100
100
100
98
96
93
91
94
94
96
94
98
98
96

Pressure (mb)

1021
1020
1020
1020
1021
1022
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1024
1025
1026
1026
1026
1027
1027
1028

Ozone (du)

391
394
387
385
381
382
383
384
386
388
386
384
381
381
382
382
383
382
379
379
380
381
376
372

Thursday 5

Waning Gibbous 92%

20:33

07:05

02 OK
03 Bad
04 OK
05 Bad
06 Bad
07 OK
08 OK
09 OK
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

Sun - Rise: 06:23, Set: 17:47, Transit: 12:05. Moon - Rise: 20:33, Set: 07:05. Civil Dark: 18:17 - 05:53. Nautical Dark: 18:51 - 05:19. Astro Dark: 19:25 - 04:45

Total Clouds (% Sky Obscured)

37
44
42
44
45
37
30
35
59
76
90
93
97
100
100
100
100
97
95
98
100
100
98
100

Low Clouds (% Sky Obscured)

30
44
42
44
45
37
30
35
59
76
85
85
85
38
7
4
8
57
35
16
33
55
88
94

Medium Clouds (% Sky Obscured)

6
5
11
22
24
14
17
3
8
18
25
14
52
70
29
9
5
22
50
75
80
80
80
80

High Clouds (% Sky Obscured)

26
27
17
9
0
0
0
0
18
27
46
66
84
100
100
100
100
97
95
98
100
100
98
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
0
0
0
7
8
9
9
9
9
9
9
9
9
9
7
4

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
1
0
0
0
0
0
0
2
2
4
0
0
1
0
0
0
0
1
1
14
20
22
46

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)

6
7
7
6
6
6
7
7
8
9
11
12
12
13
13
13
13
12
12
12
12
12
12
12

Chance of Frost

Temperature (°C)

-5
-6
-7
-8
-9
-9
-9
-9
-8
-7
-6
-6
-6
-5
-5
-6
-6
-7
-8
-9
-9
-10
-10
-10

Feels Like (°C)

-7
-9
-10
-11
-11
-12
-11
-11
-11
-10
-11
-11
-11
-11
-11
-12
-12
-13
-14
-15
-16
-16
-16
-16

Dew Point (°C)

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

Relative Humidity (%)

98
96
96
96
96
96
96
100
98
100
98
96
94
90
89
87
85
83
85
85
87
87
87
85

Pressure (mb)

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

Ozone (du)

370
366
360
359
358
354
353
353
353
355
353
350
354
352
349
344
343
342
343
344
345
345
348
348

Friday 6

Waning Gibbous 92%

21:42

07:22

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
22 Bad
23 Bad
00 Bad
01 Bad

Sun - Rise: 06:21, Set: 17:48, Transit: 12:05. Moon - Rise: 21:42, Set: 07:22. Civil Dark: 18:18 - 05:52. Nautical Dark: 18:52 - 05:17. Astro Dark: 19:27 - 04:43

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

97
100
99
98
97
98
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Medium Clouds (% Sky Obscured)

75
65
52
40
34
29
25
25
33
38
46
43
38
36
39
37
39
42
39
32
46
65
82
84

High Clouds (% Sky Obscured)

100
100
100
96
91
60
36
12
30
40
45
63
45
30
42
61
73
66
60
52
53
45
45
63

ISS Passover

Visibility (miles)

2
2
3
2
2
2
2
1
1
2
3
2
3
3
4
5
7
8
8
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
Snow
Snow
Snow
Snow
Snow
Snow
None
None
None
Snow
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

62
74
72
67
66
61
55
50
43
34
24
41
30
14
19
18
14
24
30
43
42
33
28
49

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

11
11
11
10
10
9
9
9
9
9
8
7
8
7
6
5
4
3
4
6
8
8
9
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-11
-10
-10
-10
-9
-9
-8
-8
-7
-6
-5
-4
-4
-4
-4
-4
-4
-3
-4
-4
-4
-4
-4
-4

Relative Humidity (%)

87
88
87
88
88
88
90
90
92
92
92
92
94
94
96
96
96
96
92
89
86
86
84
84

Pressure (mb)

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

Ozone (du)

348
347
346
346
345
343
342
338
341
338
334
331
328
325
322
319
317
314
311
307
304
302
301
299

Saturday 7

Waning Gibbous 85%

22:50

07:42

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
22 Bad
23 Bad
00 Bad
01 Bad

Sun - Rise: 06:19, Set: 17:50, Transit: 12:05. Moon - Rise: 22:50, Set: 07:42. Civil Dark: 18:19 - 05:50. Nautical Dark: 18:54 - 05:16. Astro Dark: 19:28 - 04:41

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

100
100
99
98
98
99
99
100
100
100
100
91
81
72
69
68
71
70
69
66
73
81
89
92

Medium Clouds (% Sky Obscured)

87
91
95
98
100
80
61
41
52
61
73
70
68
65
67
69
73
75
79
74
77
84
92
79

High Clouds (% Sky Obscured)

82
97
98
100
100
70
37
5
0
0
0
33
67
98
98
99
100
98
98
92
87
93
100
100

ISS Passover

Visibility (miles)

7
4
1
4
6
9
9
9
9
6
3
0
0
0
0
0
0
0
0
0
0
0
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

Very Light Rain
Light Rain
Light Rain
Frozen rai
Frozen rai
Light Rain
Light Rain
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
Very Light Rain
Light Rain

Precipitation Probability (%)

73
95
95
95
95
95
91
45
47
45
51
67
77
91
95
95
95
95
95
95
95
93
76
80

Precipitation Amount (mm)

0.3
0.7
1.2
1.7
2.2
1.4
0.6
0
0
0
0
0.4
0.5
0.7
0.8
0.7
0.9
1
1.1
1.1
0.7
0.6
0.3
0.4

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
91
96
94
96
94
98
98
98
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Pressure (mb)

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

Ozone (du)

297
295
293
291
290
288
280
272
264
263
262
261
259
257
255
256
257
258
258
258
257
258
259
260

Sunday 8

Waning Gibbous 77%

00:58

09:05

Sun - Rise: 07:18, Set: 18:51, Transit: 13:04. Moon - Rise: 00:58, Set: 09:05. Civil Dark: 19:21 - 06:48. Nautical Dark: 19:55 - 06:14. Astro Dark: 20:30 - 05:39

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: 02/03/26 02:01:09. Forecast: 02/03/26 to 08/03/26. Timezone: UTC-5.00