Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 1

Waxing Gibbous 98%

15:44

05:48

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 OK
18 Good
19 Good
20 Good
21 Good
22 Good
23 OK
00 OK
01 OK

Sun - Rise: 06:30, Set: 17:42, Transit: 12:06. Moon - Rise: 15:44, Set: 05:48. Civil Dark: 18:11 - 06:01. Nautical Dark: 18:45 - 05:26. Astro Dark: 19:20 - 04:52

Total Clouds (% Sky Obscured)

100
100
100
84
58
54
61
77
73
75
71
70
74
75
48
18
2
2
2
1
2
2
2
2

Low Clouds (% Sky Obscured)

71
60
70
5
39
36
46
66
67
63
66
64
67
68
37
7
1
1
1
1
1
1
1
1

Medium Clouds (% Sky Obscured)

100
100
96
84
34
30
3
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-11
-12
-13
-14
-15
-16
-17
-16
-16
-15
-15
-14
-15
-15
-15
-16
-16
-16
-17
-17
-18
-18
-18
-19

Dew Point (°C)

-9
-10
-12
-12
-13
-14
-15
-16
-16
-15
-15
-14
-15
-14
-14
-15
-15
-16
-17
-17
-18
-19
-19
-20

Relative Humidity (%)

87
85
85
85
85
84
81
73
70
70
69
66
64
67
71
69
72
73
73
75
76
76
76
76

Pressure (mb)

1024
1024
1025
1025
1026
1027
1028
1029
1029
1029
1029
1029
1029
1029
1030
1031
1032
1033
1034
1035
1035
1035
1036
1037

Ozone (du)

393
392
394
400
405
407
406
406
413
422
430
435
441
447
451
454
450
456
457
454
451
450
450
456

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 OK
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 OK

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)

2
3
7
7
7
8
22
6
30
28
55
55
100
61
58
64
73
74
93
94
88
78
59
44

Low Clouds (% Sky Obscured)

1
1
2
2
3
2
3
2
15
15
27
25
25
25
22
2
1
1
3
6
8
3
10
15

Medium Clouds (% Sky Obscured)

0
0
0
0
0
1
15
0
3
0
0
0
43
15
37
38
55
59
88
91
85
76
53
10

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
5
21
11
0
4
4
0
15
44

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
1
0
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)

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

Chance of Frost

Temperature (°C)

-17
-17
-18
-18
-18
-18
-18
-17
-15
-13
-12
-11
-10
-9
-9
-9
-9
-10
-10
-10
-11
-10
-10
-10

Feels Like (°C)

-19
-19
-19
-20
-20
-20
-20
-20
-18
-18
-16
-16
-15
-14
-14
-13
-13
-14
-15
-15
-16
-15
-14
-14

Dew Point (°C)

-20
-20
-21
-21
-21
-21
-21
-20
-18
-17
-16
-15
-14
-14
-13
-12
-11
-13
-13
-12
-13
-13
-12
-12

Relative Humidity (%)

75
76
75
76
76
77
76
75
78
74
73
70
69
68
72
78
83
81
83
85
81
80
81
83

Pressure (mb)

1037
1037
1038
1038
1038
1039
1040
1040
1040
1040
1039
1039
1038
1037
1037
1037
1037
1036
1036
1036
1035
1034
1033
1033

Ozone (du)

451
450
450
448
448
448
447
447
447
447
446
449
452
450
439
430
427
426
426
425
420
416
413
412

Tuesday 3

Full Moon 99%

18:13

06:30

02 OK
03 OK
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: 06:27, 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)

29
46
53
67
79
79
84
87
90
100
100
100
100
100
100
100
100
100
100
100
100
100
100
73

Low Clouds (% Sky Obscured)

15
10
10
10
1
1
1
0
1
0
4
5
12
23
13
10
22
23
28
33
53
66
80
62

Medium Clouds (% Sky Obscured)

9
18
34
57
70
64
49
34
35
55
50
45
50
50
55
47
40
55
70
71
90
95
79
45

High Clouds (% Sky Obscured)

29
46
53
40
13
24
42
74
83
100
100
100
100
100
100
100
100
100
100
100
100
100
81
57

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
6
8
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
2
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)

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

Chance of Frost

Temperature (°C)

-10
-10
-10
-10
-10
-10
-9
-8
-6
-3
-2
-0
1
1
1
0
-1
-2
-2
-2
-2
-2
-2
-2

Feels Like (°C)

-14
-15
-14
-15
-15
-14
-13
-12
-9
-7
-6
-5
-3
-3
-2
-3
-4
-5
-5
-5
-5
-5
-5
-5

Dew Point (°C)

-12
-13
-12
-12
-13
-12
-11
-10
-8
-7
-4
-3
-1
-0
0
-0
-1
-2
-2
-2
-2
-2
-3
-3

Relative Humidity (%)

85
83
85
85
83
85
85
82
80
78
81
83
89
93
94
96
96
96
96
98
96
98
96
96

Pressure (mb)

1032
1032
1031
1031
1031
1031
1031
1030
1030
1029
1029
1028
1027
1027
1027
1027
1026
1026
1026
1026
1025
1025
1025
1025

Ozone (du)

410
409
408
408
407
403
398
393
390
385
383
381
378
377
376
377
377
379
380
383
386
387
389
391

Wednesday 4

Waning Gibbous 97%

19:24

06:48

02 OK
03 OK
04 OK
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 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad

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)

43
15
23
36
47
51
48
49
77
78
81
78
75
72
81
89
100
98
96
94
94
94
94
94

Low Clouds (% Sky Obscured)

43
15
23
36
47
51
25
27
41
78
81
78
75
72
80
75
75
65
45
40
40
30
15
16

Medium Clouds (% Sky Obscured)

23
0
0
0
0
0
0
0
4
8
10
8
10
11
20
32
98
97
94
91
91
92
93
77

High Clouds (% Sky Obscured)

30
0
0
0
0
0
0
0
5
2
1
15
20
20
47
72
100
94
87
80
61
41
21
39

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
0
0
0
2
3
2
0
0
8
8
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

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

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
4
1
8
66
95
95
95
95
94

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
1.4
1.6
1
1.1
0.7

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
96
98
96
96
96
96
96
100
100
100
100
100
98
96
100
98
98
98
100
98
98
98
100

Pressure (mb)

1025
1024
1024
1025
1025
1025
1026
1026
1026
1025
1024
1024
1023
1023
1023
1023
1022
1022
1021
1021
1021
1020
1020
1019

Ozone (du)

389
387
384
384
384
383
383
381
378
378
379
376
372
371
371
371
372
372
369
370
365
361
357
359

Thursday 5

Waning Gibbous 92%

20:33

07:05

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: 06:23, 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)

94
96
93
92
91
91
93
97
95
95
92
100
100
100
99
98
97
90
82
82
91
89
86
87

Low Clouds (% Sky Obscured)

22
37
47
61
69
73
76
85
67
82
81
43
38
54
50
33
24
17
10
10
40
70
86
87

Medium Clouds (% Sky Obscured)

62
55
58
65
67
70
72
67
4
8
16
29
38
46
51
50
55
65
65
70
75
70
65
70

High Clouds (% Sky Obscured)

57
78
58
42
28
25
4
24
24
32
34
96
89
81
78
66
57
52
49
50
53
65
68
78

ISS Passover

Visibility (miles)

0
0
0
1
4
2
1
0
0
0
0
0
0
0
0
3
6
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
Very Light Rain
Frozen rai
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Snow
Snow
Snow

Precipitation Probability (%)

49
32
20
54
74
62
30
14
2
3
1
3
2
1
3
3
2
6
6
1
29
43
53
88

Precipitation Amount (mm)

0
0
0
0.2
0.6
0.5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.1
0.2
0.6

Wind Speed/Direction (mph)

3
4
5
7
8
9
9
9
10
11
10
10
9
10
10
11
12
13
13
13
13
12
12
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-3
-4
-4
-5
-6
-6
-6
-5
-5
-5
-5
-4
-3
-4
-4
-5
-4
-4
-8
-8
-9
-9
-9
-9

Dew Point (°C)

-0
-1
-1
-2
-2
-3
-2
-2
-2
-2
-2
-1
-0
-1
-1
-3
-4
-5
-7
-8
-10
-10
-11
-12

Relative Humidity (%)

100
100
100
98
98
96
98
98
100
100
100
100
100
100
100
94
87
84
82
80
79
80
80
80

Pressure (mb)

1019
1019
1019
1020
1021
1022
1023
1024
1025
1025
1025
1025
1025
1025
1026
1027
1027
1028
1029
1029
1030
1030
1030
1030

Ozone (du)

358
356
354
356
359
361
362
357
355
353
353
351
349
346
343
345
346
348
347
347
346
347
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)

93
99
99
98
98
96
93
90
94
97
100
100
100
100
100
100
100
100
100
100
100
100
100
99

Low Clouds (% Sky Obscured)

93
90
90
90
85
68
62
64
76
92
100
100
100
100
100
100
100
100
100
100
100
100
100
94

Medium Clouds (% Sky Obscured)

65
55
50
40
25
15
15
15
15
10
10
30
52
71
64
56
52
62
64
80
95
95
95
86

High Clouds (% Sky Obscured)

86
96
97
98
98
69
36
4
0
1
1
18
38
55
56
55
57
43
25
25
67
73
70
68

ISS Passover

Visibility (miles)

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

Snow
Snow
Snow
Snow
Snow
Snow
Snow
Frozen rai
Frozen rai
Frozen rai
Frozen rai
Frozen rai
Ice pellet
Ice pellet
Ice pellet
Ice pellet
Ice pellet
None
None
Frozen rai
Frozen rai
Frozen rai
Frozen rai
Frozen rai

Precipitation Probability (%)

95
95
95
95
95
95
95
95
95
81
71
69
68
73
68
58
50
46
55
84
95
95
95
95

Precipitation Amount (mm)

1
1.4
1.5
1.6
1.8
1.5
1.3
0.9
0.7
0.6
0.6
0.5
0.4
0.4
0.4
0.3
0.2
0
0
0.5
1.3
1.6
1.8
0.9

Wind Speed/Direction (mph)

12
12
12
12
12
12
12
11
11
10
10
9
9
8
8
8
9
11
11
12
12
12
14
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
82
85
83
83
85
83
82
82
85
85
89
90
92
94
89
84
80
84
87
92
92
92
92

Pressure (mb)

1029
1029
1028
1028
1028
1027
1027
1027
1028
1027
1026
1026
1025
1025
1025
1024
1024
1023
1022
1022
1021
1020
1019
1019

Ozone (du)

347
345
343
339
335
330
327
324
321
319
318
316
314
312
310
308
307
306
304
302
300
294
289
283

Saturday 7

Waning Gibbous 85%

22:50

07:42

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)

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: 01/03/26 01:42:18. Forecast: 01/03/26 to 07/03/26. Timezone: UTC-5.00