Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 21

Waxing Crescent 3%

09:28

17:50

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 OK
21 OK
22 OK
23 OK
00 Bad
01 Bad

Sun - Rise: 07:51, Set: 16:38, Transit: 12:14. Moon - Rise: 09:28, Set: 17:50. Civil Dark: 17:11 - 07:17. Nautical Dark: 17:48 - 06:40. Astro Dark: 18:24 - 06:04

Total Clouds (% Sky Obscured)

85
88
91
100
100
100
98
100
100
100
99
100
91
93
31
56
64
88
25
22
40
42
48
57

Low Clouds (% Sky Obscured)

50
61
72
58
80
69
66
76
81
82
81
88
90
92
28
55
63
87
22
19
39
42
48
57

Medium Clouds (% Sky Obscured)

85
88
91
100
100
100
94
100
100
97
97
100
50
2
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

85
88
91
100
100
100
45
45
50
100
52
58
50
53
3
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
2
7
9
9
9
9
9
9
9
9
9
9
9
9
3
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
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
23
48
33
4
0
1
4
17
42
49
32
28
23
4
10
16
3
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

69
64
66
80
86
85
82
79
76
76
78
79
90
91
82
79
79
89
65
67
68
71
72
72

Pressure (mb)

1018
1018
1017
1015
1014
1014
1012
1011
1011
1010
1008
1007
1006
1005
1005
1006
1006
1007
1008
1009
1009
1010
1010
1011

Ozone (du)

307
302
298
299
297
295
293
293
293
295
299
300
301
301
303
304
305
309
316
325
328
327
326
324

Monday 22

Waxing Crescent 7%

10:02

18:58

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: 07:51, Set: 16:38, Transit: 12:15. Moon - Rise: 10:02, Set: 18:58. Civil Dark: 17:12 - 07:18. Nautical Dark: 17:49 - 06:41. Astro Dark: 18:25 - 06:05

Total Clouds (% Sky Obscured)

71
73
82
96
96
86
90
95
97
88
80
80
77
77
62
58
47
45
60
75
88
92
95
97

Low Clouds (% Sky Obscured)

71
73
79
96
96
86
90
95
97
88
80
80
77
77
62
58
47
45
60
75
88
89
93
96

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
1
2
2
0
0
0
0
0
0
0
0
0
5
9
16
19
22

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

Precipitation Type

None
None
None
None
None
None
Snow
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
1
4
14
19
27
31
22
14
18
4
15
6
2
4
2
14
1
2
2
2
13
4

Precipitation Amount (mm)

0
0
0
0
0
0
0.1
0.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

10
10
10
10
10
11
11
11
12
12
13
13
13
12
11
11
11
11
11
11
10
10
9
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-8
-8
-9
-9
-10
-9
-10
-10
-11
-11
-11
-11
-11
-11
-11
-12
-12
-12
-13
-13
-13
-13
-14
-13

Dew Point (°C)

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

Relative Humidity (%)

73
73
72
72
72
72
76
84
76
73
66
64
61
59
57
58
58
57
55
55
54
56
57
58

Pressure (mb)

1012
1012
1012
1013
1013
1014
1015
1016
1016
1017
1016
1016
1017
1017
1018
1019
1019
1020
1020
1020
1021
1021
1021
1021

Ozone (du)

322
322
321
321
323
325
329
331
331
332
336
346
351
355
364
366
364
365
371
373
379
374
372
368

Tuesday 23

Waxing Crescent 13%

10:30

20:09

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

Sun - Rise: 07:52, Set: 16:39, Transit: 12:15. Moon - Rise: 10:30, Set: 20:09. Civil Dark: 17:12 - 07:18. Nautical Dark: 17:50 - 06:41. Astro Dark: 18:25 - 06:05

Total Clouds (% Sky Obscured)

99
96
53
50
65
78
68
55
74
59
53
45
39
40
3
3
3
3
4
5
5
30
57
79

Low Clouds (% Sky Obscured)

99
94
53
50
65
78
67
53
74
59
53
45
39
40
3
3
3
3
3
2
0
0
0
1

Medium Clouds (% Sky Obscured)

41
48
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
22
44
61

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
4
5
4
2
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 (%)

5
4
2
1
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)

9
9
9
9
10
10
10
9
11
10
10
10
10
9
7
5
3
3
3
3
2
2
1
2

Chance of Frost

Temperature (°C)

-8
-8
-9
-9
-10
-10
-10
-10
-10
-9
-8
-8
-8
-8
-8
-9
-9
-10
-10
-10
-11
-11
-11
-11

Feels Like (°C)

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

Dew Point (°C)

-15
-15
-16
-16
-17
-17
-17
-17
-17
-17
-17
-17
-17
-17
-16
-16
-16
-17
-17
-17
-18
-18
-18
-17

Relative Humidity (%)

58
58
56
57
57
58
57
55
52
50
49
48
48
49
52
55
56
57
56
56
55
56
58
59

Pressure (mb)

1021
1021
1021
1021
1022
1022
1022
1023
1023
1023
1022
1022
1022
1022
1022
1022
1023
1023
1023
1023
1023
1023
1023
1023

Ozone (du)

368
367
367
365
365
369
379
385
388
391
390
384
377
372
377
378
377
389
390
393
394
395
402
399

Wednesday 24

Waxing Crescent 21%

10:53

21:19

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

Sun - Rise: 07:52, Set: 16:39, Transit: 12:16. Moon - Rise: 10:53, Set: 21:19. Civil Dark: 17:13 - 07:19. Nautical Dark: 17:50 - 06:41. Astro Dark: 18:26 - 06:06

Total Clouds (% Sky Obscured)

83
83
73
78
97
99
95
93
89
85
82
78
53
42
35
25
23
20
22
32
33
29
29
22

Low Clouds (% Sky Obscured)

2
2
2
2
2
2
2
2
3
5
7
8
6
5
0
0
0
0
10
21
31
22
18
14

Medium Clouds (% Sky Obscured)

55
57
60
71
96
99
95
87
89
82
76
70
42
31
25
23
22
20
22
28
30
20
18
9

High Clouds (% Sky Obscured)

18
36
54
47
40
32
26
20
14
15
16
16
26
35
35
25
15
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)

2
2
1
1
1
1
2
2
3
3
3
2
2
2
2
1
1
1
2
2
3
3
3
3

Chance of Frost

Temperature (°C)

-11
-11
-11
-11
-11
-11
-11
-9
-8
-7
-6
-6
-5
-5
-6
-7
-7
-7
-8
-8
-8
-8
-9
-9

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

62
65
67
70
72
72
72
66
59
56
51
50
49
48
55
64
66
67
68
68
70
71
69
69

Pressure (mb)

1023
1023
1023
1023
1023
1024
1024
1024
1025
1025
1024
1024
1024
1024
1025
1025
1025
1026
1026
1026
1025
1025
1024
1024

Ozone (du)

398
398
395
394
392
393
393
396
391
387
383
378
377
375
373
374
381
377
375
379
375
368
369
359

Thursday 25

Waxing Crescent 30%

11:13

22:30

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: 07:53, Set: 16:40, Transit: 12:16. Moon - Rise: 11:13, Set: 22:30. Civil Dark: 17:14 - 07:19. Nautical Dark: 17:51 - 06:42. Astro Dark: 18:26 - 06:06

Total Clouds (% Sky Obscured)

31
43
59
98
98
100
100
100
100
99
98
96
93
95
93
92
91
91
90
89
89
84
79
71

Low Clouds (% Sky Obscured)

23
30
41
85
83
87
78
95
92
92
92
88
89
89
87
78
74
73
75
78
80
77
74
71

Medium Clouds (% Sky Obscured)

13
24
33
38
67
100
100
100
100
98
88
93
84
82
76
58
45
31
20
11
2
2
1
1

High Clouds (% Sky Obscured)

0
0
0
0
3
5
30
45
23
44
38
9
0
1
0
0
0
0
3
6
19
42
33
20

ISS Passover

Visibility (miles)

9
9
9
9
9
6
7
9
9
9
9
9
9
6
3
0
0
0
0
3
6
8
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
Snow
Snow
Snow
None
None
None
None
None

Precipitation Probability (%)

2
3
2
14
21
22
26
28
26
28
35
29
29
34
35
35
38
43
34
24
7
4
4
2

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

67
65
66
68
70
77
85
82
79
76
75
76
77
83
91
98
98
98
98
98
98
98
96
96

Pressure (mb)

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

Ozone (du)

354
352
345
343
344
346
350
351
348
351
353
357
361
361
361
360
358
355
353
350
348
346
344
343

Friday 26

Waxing Crescent 40%

11:31

23:42

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: 07:53, Set: 16:41, Transit: 12:17. Moon - Rise: 11:31, Set: 23:42. Civil Dark: 17:14 - 07:19. Nautical Dark: 17:51 - 06:42. Astro Dark: 18:27 - 06:06

Total Clouds (% Sky Obscured)

68
65
66
69
75
79
86
91
97
98
99
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

68
65
66
69
63
59
62
62
62
51
43
34
27
21
14
36
60
85
89
88
86
89
93
98

Medium Clouds (% Sky Obscured)

1
1
3
5
7
13
37
62
86
89
94
97
98
98
98
88
77
67
58
46
35
35
30
25

High Clouds (% Sky Obscured)

31
38
36
23
27
36
27
17
8
39
69
100
100
99
99
98
97
100
100
100
100
95
70
45

ISS Passover

Visibility (miles)

9
9
9
9
8
7
6
4
2
0
0
1
1
3
4
6
7
8
9
6
3
0
2
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
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Snow
Snow
Snow
Snow
Snow
Snow
Snow

Precipitation Probability (%)

5
5
0
4
5
4
20
28
33
45
55
63
66
69
70
72
71
70
68
65
57
62
62
56

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

4
5
5
5
5
5
4
5
6
8
8
9
11
10
9
8
8
8
10
10
11
14
12
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
94
94
94
94
98
98
98
98
98
98
96
96
94
96
94
94
94
94
92
91
89
85
82

Pressure (mb)

1014
1013
1013
1013
1013
1012
1012
1011
1010
1010
1008
1006
1005
1004
1003
1002
1002
1001
1001
1002
1003
1004
1005
1007

Ozone (du)

341
339
337
336
332
329
326
324
323
322
320
318
317
316
316
316
317
319
321
326
332
338
352
365

Saturday 27

First Quarter 52%

11:50

00:55

Sun - Rise: 07:53, Set: 16:41, Transit: 12:17. Moon - Rise: 11:50, Set: 00:55. Civil Dark: 17:15 - 07:19. Nautical Dark: 17:52 - 06:42. Astro Dark: 18:28 - 06:07

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 St. Croix, Canada (44.95,-64.04)

Generated: 21/12/25 02:03:38. Forecast: 21/12/25 to 27/12/25. Timezone: UTC-4.00