Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 28

First Quarter 68%

13:25

00:39

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

Sun - Rise: 07:29, Set: 16:35, Transit: 12:02. Moon - Rise: 13:25, Set: 00:39. Civil Dark: 17:08 - 06:57. Nautical Dark: 17:44 - 06:20. Astro Dark: 18:20 - 05:45

Total Clouds (% Sky Obscured)

50
45
35
30
9
0
3
12
25
27
28
30
30
36
96
94
88
68
55
39
36
39
38
39

Low Clouds (% Sky Obscured)

37
18
35
22
7
0
2
10
22
23
20
19
17
24
91
94
88
61
55
23
19
24
18
25

Medium Clouds (% Sky Obscured)

3
3
35
12
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
1
0
0
0

High Clouds (% Sky Obscured)

0
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
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 (%)

2
0
10
9
2
2
3
5
4
3
1
1
1
1
0
1
1
0
0
0
1
3
1
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
10
11
10
10
10
10
10
10
10
10
11
11
12
12
12
11
11
10
10
10
10
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-3
-3
-3
-3
-2
-3
-3
-4
-4
-4
-5
-4
-4
-2
-2
-3
-3
-3
-2
-3
-3
-3
-4
-4

Dew Point (°C)

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

Relative Humidity (%)

73
70
73
77
77
71
69
68
74
72
68
67
65
63
57
54
53
55
58
63
71
77
75
65

Pressure (mb)

1005
1006
1006
1007
1007
1008
1009
1010
1011
1011
1012
1013
1014
1015
1015
1016
1016
1017
1018
1019
1020
1021
1023
1024

Ozone (du)

374
372
363
355
351
351
351
349
351
351
349
343
340
338
335
329
329
329
328
328
329
332
333
332

Saturday 29

Waxing Gibbous 79%

13:44

01:53

21 OK
22 OK
23 OK
00 Good
01 Good
02 Good
03 Good
04 Good
05 Good
06 OK
07 OK
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

Sun - Rise: 07:31, Set: 16:35, Transit: 12:03. Moon - Rise: 13:44, Set: 01:53. Civil Dark: 17:08 - 06:58. Nautical Dark: 17:44 - 06:21. Astro Dark: 18:19 - 05:46

Total Clouds (% Sky Obscured)

29
42
22
18
6
5
10
13
15
35
45
89
100
100
98
99
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

18
23
20
15
3
3
4
4
5
4
2
0
5
58
47
48
40
59
69
76
84
82
95
93

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
2
5
36
89
97
98
97
98
98
98
96
98
98
99
99
92

High Clouds (% Sky Obscured)

0
0
0
0
3
1
6
10
6
34
23
54
100
100
88
97
100
100
99
100
89
100
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 (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
16
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)

11
10
9
8
7
7
7
6
4
3
2
2
1
2
4
5
6
6
6
6
6
8
9
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-4
-4
-4
-4
-4
-5
-5
-5
-5
-5
-5
-5
-5
-5
-4
-4
-4
-4
-3
-4
-3
-3
-2
-2

Dew Point (°C)

-6
-6
-6
-7
-7
-7
-7
-7
-7
-7
-7
-8
-8
-8
-8
-9
-8
-7
-6
-5
-4
-3
-1
-0

Relative Humidity (%)

65
66
66
67
67
69
69
69
72
73
75
72
64
60
56
51
52
57
61
65
70
71
80
79

Pressure (mb)

1025
1025
1026
1027
1029
1030
1030
1031
1032
1032
1033
1034
1034
1034
1034
1033
1033
1032
1031
1031
1030
1029
1028
1027

Ozone (du)

325
321
320
319
316
314
312
309
307
304
303
302
302
304
307
305
306
306
304
305
304
304
307
308

Sunday 30

Waxing Gibbous 75%

14:06

03:11

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 OK
10 OK
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 OK
17 OK
18 OK
19 OK
20 OK

Sun - Rise: 07:32, Set: 16:35, Transit: 12:03. Moon - Rise: 14:06, Set: 03:11. Civil Dark: 17:07 - 06:59. Nautical Dark: 17:44 - 06:22. Astro Dark: 18:19 - 05:47

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
97
34
34
36
45
59
50
51
34
29
36
22
20

Low Clouds (% Sky Obscured)

100
90
92
95
100
100
100
97
96
99
88
94
24
30
31
36
40
31
44
21
18
34
18
12

Medium Clouds (% Sky Obscured)

85
92
92
93
98
100
100
100
100
100
96
31
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
98
100
100
100
100
100
100
100
100
73
15
1
0
0
0
0
0
0
0
0
0
0
12

ISS Passover

Visibility (miles)

9
9
9
7
4
4
4
4
4
6
8
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

4
30
52
84
95
95
95
95
95
95
95
32
6
4
15
5
4
5
13
0
0
0
0
0

Precipitation Amount (mm)

0
0
0.3
0.6
1
1.1
1.4
1
1
0.7
0.7
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

11
13
13
14
14
15
17
18
20
19
15
12
14
14
14
14
15
16
15
14
13
12
12
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
80
86
87
88
90
91
93
91
88
85
85
79
74
69
69
67
65
66
66
66
65
63
59

Pressure (mb)

1025
1024
1022
1021
1019
1017
1015
1013
1011
1009
1010
1009
1010
1011
1011
1011
1012
1013
1014
1016
1018
1020
1021
1023

Ozone (du)

310
314
315
316
316
317
319
320
321
325
328
333
337
343
357
374
379
379
374
373
371
368
369
375

Monday 1

Waxing Gibbous 88%

14:33

04:33

21 OK
22 Bad
23 OK
00 Bad
01 Bad
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
19 Bad
20 Bad

Sun - Rise: 07:33, Set: 16:34, Transit: 12:04. Moon - Rise: 14:33, Set: 04:33. Civil Dark: 17:07 - 07:00. Nautical Dark: 17:44 - 06:23. Astro Dark: 18:19 - 05:48

Total Clouds (% Sky Obscured)

22
70
34
52
76
23
25
30
74
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

5
0
0
0
0
0
0
0
0
0
0
0
0
0
7
77
90
94
96
95
79
94
96
97

Medium Clouds (% Sky Obscured)

0
2
22
43
70
23
25
30
63
93
99
95
100
95
97
95
92
96
98
100
100
100
100
100

High Clouds (% Sky Obscured)

22
42
26
13
0
15
25
30
63
81
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
9
9
9
7
9
9
2
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
Snow

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
13
4
26
23
20
25
64

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
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-7
-8
-10
-8
-8
-8
-7
-7
-7
-8
-9
-8
-8
-8
-7
-7
-5
-5
-4
-4
-5
-5
-5
-5

Dew Point (°C)

-11
-12
-13
-13
-13
-13
-14
-14
-14
-14
-14
-14
-14
-14
-14
-12
-10
-8
-6
-4
-3
-3
-4
-4

Relative Humidity (%)

54
51
50
49
49
50
49
51
51
52
49
49
47
44
43
46
50
56
70
78
89
86
78
78

Pressure (mb)

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

Ozone (du)

372
370
368
365
361
360
357
354
352
353
354
353
352
350
347
346
344
343
341
342
339
339
339
339

Tuesday 2

Waxing Gibbous 95%

15:07

05:58

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
19 Bad
20 Bad

Sun - Rise: 07:34, Set: 16:34, Transit: 12:04. Moon - Rise: 15:07, Set: 05:58. Civil Dark: 17:07 - 07:01. Nautical Dark: 17:44 - 06:24. Astro Dark: 18:19 - 05:49

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
98
96
95
92
89
85
84

Low Clouds (% Sky Obscured)

98
99
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
96
92
88
84
80
76
76

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
35
35
35
35
33
35
33
42
47
40
46
53
55
44
32
21
18

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
94
65
60
60
75
85
95
67
33
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

2
0
0
0
1
1
1
0
0
0
5
9
8
6
5
6
8
9
8
6
5
6
8
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
Moderate Rain
Moderate Rain
Moderate Rain
Moderate Rain
Moderate Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
Sleet
Sleet
None
Sleet
Snow
Snow
Snow
Snow
Snow
Snow

Precipitation Probability (%)

95
95
95
95
95
95
95
95
95
95
95
95
95
57
82
65
43
61
77
89
85
65
50
42

Precipitation Amount (mm)

1.1
2.4
4.2
4.3
8.6
8.1
4.3
2.3
0.9
1.1
1.3
0.9
0.6
0
0.4
0.2
0
0.2
0.4
0.6
0.5
0.2
0.2
0.1

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
98
98
98
94
94
94
96
100
100
93
94
94
93
93
89
86
83
84
86
88
88
86
83

Pressure (mb)

1018
1016
1013
1010
1007
1002
1000
996
993
991
988
986
985
985
984
985
986
988
990
992
994
997
999
1001

Ozone (du)

338
335
333
330
332
329
332
334
334
339
341
344
344
344
344
343
341
339
341
342
343
343
343
342

Wednesday 3

Waxing Gibbous 99%

15:53

07:25

21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
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
19 Bad
20 Bad

Sun - Rise: 07:35, Set: 16:34, Transit: 12:04. Moon - Rise: 15:53, Set: 07:25. Civil Dark: 17:07 - 07:02. Nautical Dark: 17:43 - 06:25. Astro Dark: 18:19 - 05:50

Total Clouds (% Sky Obscured)

82
78
76
72
68
57
49
40
54
79
96
97
98
100
100
100
100
100
100
100
100
100
100
98

Low Clouds (% Sky Obscured)

76
75
70
66
58
35
16
6
8
11
15
31
47
62
71
80
88
88
88
88
81
75
69
79

Medium Clouds (% Sky Obscured)

10
3
2
1
0
16
31
40
54
75
91
94
96
99
99
99
99
99
100
100
98
95
92
61

High Clouds (% Sky Obscured)

0
0
1
2
3
4
9
11
24
41
58
71
86
100
99
98
94
95
97
100
68
36
4
3

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
6
3
0
3
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
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None

Precipitation Probability (%)

30
19
15
10
3
2
0
0
0
0
0
0
0
0
18
24
27
46
58
67
61
54
45
41

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.3
0.2
0
0
0

Wind Speed/Direction (mph)

17
15
14
13
10
8
7
6
6
6
6
5
7
9
11
10
10
10
10
10
10
11
12
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
86
86
86
87
89
86
85
84
82
82
82
78
77
74
76
77
77
83
89
94
91
84
80

Pressure (mb)

1003
1005
1007
1008
1009
1010
1011
1011
1012
1012
1012
1012
1011
1011
1010
1009
1008
1007
1006
1005
1005
1005
1006
1006

Ozone (du)

338
335
331
331
330
329
332
334
337
340
344
348
350
352
354
353
352
351
350
349
348
349
351
352

Thursday 4

Full Moon 100%

16:53

08:44

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

Sun - Rise: 07:36, Set: 16:34, Transit: 12:05. Moon - Rise: 16:53, Set: 08:44. Civil Dark: 17:07 - 07:03. Nautical Dark: 17:43 - 06:26. Astro Dark: 18:19 - 05:51

Total Clouds (% Sky Obscured)

96
95
92
85
76
75
76
81
84
79
70
67
64
62
60
57
50

Low Clouds (% Sky Obscured)

82
82
80
78
76
74
71
67
56
45
38
46
56
62
60
57
50

Medium Clouds (% Sky Obscured)

30
2
2
1
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

ISS Passover

Visibility (miles)

7
4
1
4
7
9
9
9
8
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

Precipitation Type

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

Precipitation Probability (%)

37
30
24
18
8
9
7
4
5
7
6
6
2
1
3
3
1

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

14
13
14
13
13
13
13
13
13
13
13
13
13
13
13
13
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-6
-6
-7
-8
-10
-11
-16
-16
-16
-16
-15
-16
-16
-16
-16
-15
-15

Dew Point (°C)

-4
-5
-7
-9
-12
-15
-15
-15
-15
-15
-15
-15
-15
-16
-16
-16
-16

Relative Humidity (%)

81
82
81
76
72
68
68
69
69
69
69
68
62
59
54
53
51

Pressure (mb)

1007
1008
1009
1010
1011
1012
1013
1014
1015
1015
1016
1017
1017
1018
1018
1018
1018

Ozone (du)

356
361
365
368
370
373
376
378
381
382
382
383
382
381
380
373
365

Forecast for Halifax, Halifax Regional Municipality, Canada (44.65,-63.57)

Generated: 28/11/25 21:04:40. Forecast: 28/11/25 to 04/12/25. Timezone: UTC-4.00