Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 28

Waxing Gibbous 63%

11:48

01:53

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

Sun - Rise: 07:32, Set: 16:20, Transit: 11:56. Moon - Rise: 11:48, Set: 01:53. Civil Dark: 16:54 - 06:58. Nautical Dark: 17:31 - 06:21. Astro Dark: 18:07 - 05:45

Total Clouds (% Sky Obscured)

92
95
96
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

47
33
19
2
2
2
1
3
2
2
3
4
42
54
85
100
100
100
100
95
93
82
68
95

Medium Clouds (% Sky Obscured)

1
2
38
84
93
100
97
87
96
100
100
100
100
100
100
100
100
100
100
100
100
100
85
100

High Clouds (% Sky Obscured)

92
95
96
98
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

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

Fog (%)

0
2
1
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
Snow
Frozen rai
Frozen rai
Frozen rai
Frozen rai
Light Rain
Moderate Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
2
15
58
95
95
95
95
95
95
95
95
95
88
77

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.1
1.5
2.6
1.8
1.7
1.8
3.2
1.6
1.5
2.4
0.3
0.3

Wind Speed/Direction (mph)

3
4
5
8
7
8
6
5
6
6
6
7
9
10
10
9
9
10
12
14
14
15
16
16

Chance of Frost

Temperature (°C)

-14
-11
-9
-6
-5
-5
-6
-6
-6
-6
-6
-5
-4
-3
-3
-2
-1
0
1
1
1
2
2
2

Feels Like (°C)

-19
-16
-14
-11
-9
-9
-10
-10
-10
-10
-10
-9
-9
-9
-8
-7
-6
-5
-5
-5
-5
-5
-5
-4

Dew Point (°C)

-17
-14
-12
-9
-8
-8
-8
-8
-8
-8
-7
-7
-7
-6
-3
-2
-2
-0
1
1
1
1
2
2

Relative Humidity (%)

81
80
78
77
79
82
85
87
89
87
87
84
79
79
94
98
98
98
100
98
100
98
98
98

Pressure (mb)

1021
1020
1019
1017
1017
1015
1014
1014
1013
1012
1010
1008
1007
1005
1002
1001
1000
998
996
995
993
992
990
990

Ozone (du)

330
328
328
327
326
325
324
323
321
321
322
326
328
329
329
328
327
325
321
317
320
324
326
325

Monday 29

Waxing Gibbous 74%

12:11

03:14

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

Sun - Rise: 07:32, Set: 16:21, Transit: 11:56. Moon - Rise: 12:11, Set: 03:14. Civil Dark: 16:54 - 06:59. Nautical Dark: 17:32 - 06:21. Astro Dark: 18:07 - 05:46

Total Clouds (% Sky Obscured)

100
100
100
100
99
40
78
65
100
100
100
100
98
99
99
98
97
99
96
98
97
96
95
99

Low Clouds (% Sky Obscured)

90
100
82
75
62
19
56
51
75
72
53
83
86
97
73
94
76
82
82
83
76
83
81
85

Medium Clouds (% Sky Obscured)

100
99
45
50
50
40
50
9
100
100
100
99
36
92
91
61
87
92
85
87
84
79
61
90

High Clouds (% Sky Obscured)

100
96
0
0
0
0
0
0
50
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1

ISS Passover

Visibility (miles)

2
5
1
0
9
9
9
9
9
9
9
9
9
9
4
0
4
8
8
8
8
8
8
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

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

Precipitation Probability (%)

75
95
95
71
31
26
13
7
4
4
6
18
28
36
40
36
30
23
26
30
34
24
28
21

Precipitation Amount (mm)

0.2
1.4
1
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

15
13
6
6
9
10
10
12
12
11
10
11
10
12
12
16
19
20
20
21
21
21
21
22

Chance of Frost

Temperature (°C)

2
3
2
2
3
3
1
0
-1
-1
-1
-1
-2
-3
-5
-6
-8
-9
-10
-10
-11
-11
-12
-12

Feels Like (°C)

-4
-3
-1
-2
-3
-3
-2
-4
-6
-7
-6
-6
-7
-8
-10
-13
-17
-19
-20
-20
-20
-20
-20
-21

Dew Point (°C)

2
2
2
2
-0
-1
-2
-4
-5
-6
-5
-6
-5
-7
-8
-8
-11
-13
-14
-14
-14
-15
-15
-16

Relative Humidity (%)

100
98
100
98
80
76
77
74
71
67
72
72
78
73
79
89
78
77
75
75
75
73
75
75

Pressure (mb)

989
988
988
988
987
987
987
987
987
987
986
985
985
985
985
986
988
988
989
989
990
991
992
993

Ozone (du)

332
335
332
332
340
357
376
390
386
399
400
411
400
388
386
382
383
386
385
383
389
394
393
403

Tuesday 30

Waxing Gibbous 84%

12:40

04:38

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

Sun - Rise: 07:32, Set: 16:22, Transit: 11:57. Moon - Rise: 12:40, Set: 04:38. Civil Dark: 16:55 - 06:59. Nautical Dark: 17:32 - 06:21. Astro Dark: 18:08 - 05:46

Total Clouds (% Sky Obscured)

100
99
100
97
99
100
100
98
97
98
98
97
97
99
99
96
99
85
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

85
79
85
88
83
86
77
89
89
85
81
76
76
68
69
29
17
1
3
17
16
21
30
45

Medium Clouds (% Sky Obscured)

100
95
99
44
45
100
100
93
90
93
91
89
88
94
97
54
74
84
100
100
100
100
100
100

High Clouds (% Sky Obscured)

0
0
0
0
3
96
94
53
45
32
2
1
14
25
29
50
68
10
100
100
49
93
69
53

ISS Passover

Visibility (miles)

1
0
0
1
1
6
0
0
1
1
0
1
4
9
9
9
9
9
9
9
6
1
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
Snow
Snow
Snow
Snow
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

31
36
29
27
22
30
40
47
46
41
39
26
19
13
11
4
2
1
3
4
5
15
17
20

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

22
22
21
21
20
18
18
17
17
17
18
18
18
17
16
15
15
14
13
12
11
9
8
8

Chance of Frost

Temperature (°C)

-12
-12
-12
-12
-12
-12
-13
-13
-13
-12
-13
-12
-12
-13
-13
-13
-13
-13
-13
-12
-12
-12
-11
-10

Feels Like (°C)

-21
-21
-20
-20
-20
-20
-20
-21
-21
-20
-21
-21
-21
-21
-20
-20
-20
-19
-19
-18
-17
-17
-16
-15

Dew Point (°C)

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

Relative Humidity (%)

75
79
78
78
76
73
79
79
76
78
81
78
75
69
66
65
64
66
67
72
76
83
86
86

Pressure (mb)

994
994
994
994
995
995
996
996
997
997
997
997
997
997
997
998
998
998
998
998
999
999
999
999

Ozone (du)

410
422
435
440
434
440
446
436
437
442
441
433
434
443
445
435
423
407
397
394
388
384
382
386

Wednesday 31

Waxing Gibbous 92%

13:18

06:00

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

Sun - Rise: 07:32, Set: 16:23, Transit: 11:57. Moon - Rise: 13:18, Set: 06:00. Civil Dark: 16:56 - 06:59. Nautical Dark: 17:33 - 06:22. Astro Dark: 18:09 - 05:46

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
99
99
92
46
39
47
67
60
62
44
46
41
47
75
69

Low Clouds (% Sky Obscured)

56
69
79
81
85
84
90
87
95
96
97
88
32
25
44
66
20
53
28
26
6
11
16
19

Medium Clouds (% Sky Obscured)

99
100
98
99
99
99
98
97
57
70
58
45
37
27
15
14
40
9
17
25
34
43
65
57

High Clouds (% Sky Obscured)

2
1
3
8
9
4
21
42
66
44
22
0
0
0
0
0
0
1
2
1
1
0
0
0

ISS Passover

Visibility (miles)

0
3
4
4
3
5
4
4
0
0
0
0
8
9
8
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
Snow
Snow
Snow
None
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

26
25
22
36
26
34
38
39
33
29
36
24
22
21
18
17
13
8
8
7
6
6
6
4

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-13
-12
-12
-12
-11
-11
-13
-13
-13
-15
-15
-17
-18
-17
-18
-19
-20
-20
-20
-20
-20
-20
-20
-20

Dew Point (°C)

-11
-11
-11
-10
-9
-9
-10
-10
-10
-11
-12
-13
-15
-16
-16
-17
-18
-19
-19
-19
-20
-20
-20
-19

Relative Humidity (%)

87
80
77
77
85
83
80
83
88
88
88
85
78
76
78
77
76
74
74
73
73
74
72
71

Pressure (mb)

1000
999
998
998
998
998
998
999
999
1000
1000
1001
1001
1002
1002
1003
1004
1004
1005
1005
1006
1006
1007
1008

Ozone (du)

392
394
400
406
414
418
416
412
419
423
427
431
429
426
430
427
426
427
415
399
392
383
377
373

Thursday 1

Waxing Gibbous 98%

14:10

07:11

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

Sun - Rise: 07:32, Set: 16:23, Transit: 11:58. Moon - Rise: 14:10, Set: 07:11. Civil Dark: 16:57 - 06:59. Nautical Dark: 17:34 - 06:22. Astro Dark: 18:10 - 05:46

Total Clouds (% Sky Obscured)

82
90
86
41
29
27
26
69
91
84
76
70
65
70
70
77
78
76
62
49
43
60
79
100

Low Clouds (% Sky Obscured)

72
88
83
41
29
27
26
28
15
15
15
5
5
5
10
40
34
20
32
34
43
50
65
66

Medium Clouds (% Sky Obscured)

28
45
5
13
13
16
15
12
14
13
7
10
22
36
42
58
53
48
43
38
38
60
78
96

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
3
5
7
28
42
35

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 (%)

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

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
11
11
11
10
9
7
5
4
2
3
2
2
3
3
4
4
5
5
5
4
4
4
5

Chance of Frost

Temperature (°C)

-14
-13
-13
-12
-12
-12
-13
-15
-16
-16
-15
-16
-15
-15
-15
-15
-13
-13
-13
-13
-13
-14
-12
-11

Feels Like (°C)

-19
-19
-19
-18
-17
-16
-16
-17
-19
-20
-19
-19
-18
-19
-19
-19
-16
-16
-16
-16
-15
-16
-16
-15

Dew Point (°C)

-19
-19
-19
-18
-18
-17
-17
-18
-19
-19
-18
-18
-17
-17
-17
-17
-15
-15
-16
-16
-16
-16
-15
-14

Relative Humidity (%)

66
63
62
60
60
66
71
79
81
79
81
82
84
84
82
81
79
79
78
79
81
81
78
73

Pressure (mb)

1008
1008
1007
1007
1007
1007
1007
1007
1008
1008
1008
1008
1008
1008
1007
1007
1006
1006
1006
1006
1006
1007
1007
1007

Ozone (du)

370
368
369
373
380
387
393
392
392
396
394
386
372
369
369
367
364
361
358
353
348
343
349
355

Friday 2

Waxing Gibbous 100%

15:17

08:08

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

Sun - Rise: 07:32, Set: 16:24, Transit: 11:58. Moon - Rise: 15:17, Set: 08:08. Civil Dark: 16:58 - 06:59. Nautical Dark: 17:35 - 06:22. Astro Dark: 18:11 - 05:46

Total Clouds (% Sky Obscured)

99
97
98
96
93
91
79
67
57
64
74
80
86
91
99
100
100
100
100
100
98
98
97
97

Low Clouds (% Sky Obscured)

66
66
66
65
67
77
68
53
38
46
54
57
64
75
86
91
95
100
93
90
86
89
93
93

Medium Clouds (% Sky Obscured)

87
76
62
52
45
38
38
38
39
50
61
72
74
78
84
70
55
43
40
36
29
39
50
67

High Clouds (% Sky Obscured)

12
6
2
0
1
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
1
1
1
2

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
3
1
4
7
9
9
8
3
4
5
4
18
20
18
23
25
24
23
22
20
22
20
14

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-15
-14
-14
-14
-10
-10
-10
-10
-11
-11
-14
-14
-15
-14
-14
-14
-14
-14
-14
-15
-15
-15
-16
-15

Dew Point (°C)

-14
-13
-13
-13
-12
-11
-10
-11
-12
-14
-13
-13
-13
-13
-12
-12
-13
-13
-14
-14
-14
-14
-14
-13

Relative Humidity (%)

71
68
66
62
70
78
88
87
86
85
81
78
75
75
77
77
78
78
78
80
78
78
75
74

Pressure (mb)

1007
1007
1006
1005
1006
1006
1006
1006
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1008
1008
1008
1008
1008
1009

Ozone (du)

360
360
360
359
362
365
368
375
381
388
397
407
416
415
414
413
411
409
407
406
404
403
400
398

Saturday 3

Full Moon 99%

16:35

08:51

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 OK
00 OK
01 OK
02 OK
03 OK
04 OK
05 OK
06 OK

Sun - Rise: 07:32, Set: 16:25, Transit: 11:59. Moon - Rise: 16:35, Set: 08:51. Civil Dark: 16:59 - 06:59. Nautical Dark: 17:36 - 06:22. Astro Dark: 18:11 - 05:46

Total Clouds (% Sky Obscured)

98
99
100
99
99
98
95
77
70
62
59
51
34
20
8
7
6
4
6
8
11

Low Clouds (% Sky Obscured)

95
94
93
94
96
98
94
77
70
62
59
51
34
20
6
5
3
2
2
2
3

Medium Clouds (% Sky Obscured)

78
87
91
99
99
98
72
43
15
9
4
0
0
0
0
0
0
0
1
2
2

High Clouds (% Sky Obscured)

2
3
2
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
4
7
11

ISS Passover

Visibility (miles)

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

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

20
23
25
26
26
25
24
22
18
19
15
3
6
6
1
1
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-14
-15
-14
-14
-14
-14
-15
-15
-15
-15
-19
-20
-20
-20
-20
-20
-21
-21
-21
-22
-22

Dew Point (°C)

-12
-12
-12
-12
-12
-12
-13
-14
-15
-17
-17
-18
-19
-20
-20
-20
-21
-21
-22
-22
-23

Relative Humidity (%)

72
72
71
71
75
81
86
83
79
76
76
74
75
74
75
75
74
74
73
72
72

Pressure (mb)

1009
1009
1009
1009
1010
1011
1012
1013
1015
1016
1017
1018
1019
1019
1020
1020
1021
1021
1022
1023
1023

Ozone (du)

395
399
404
408
409
411
412
412
412
412
408
404
400
399
397
396
389
382
375
377
380

Forecast for Hemmingford, Montérégie, Canada (45.05,-73.58)

Generated: 28/12/25 10:23:18. Forecast: 28/12/25 to 03/01/26. Timezone: UTC-5.00