Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 20

Waxing Crescent 1%

08:35

16:42

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

Sun - Rise: 07:39, Set: 16:30, Transit: 12:05. Moon - Rise: 08:35, Set: 16:42. Civil Dark: 17:03 - 07:06. Nautical Dark: 17:40 - 06:29. Astro Dark: 18:16 - 05:54

Total Clouds (% Sky Obscured)

7
24
19
24
43
100
99
100
100
99
100
100
100
100
62
100
100
100
100
91
75
64
72
73

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
92
82
53
27
33
0
0
0
0
0
52
100
91
87
75
64
72
73

Medium Clouds (% Sky Obscured)

7
6
19
18
16
91
91
97
100
96
100
100
100
100
62
100
100
100
100
24
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
13
27
100
55
49
100
57
100
100
100
74
52
100
100
100
45
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
6
9
9
5
4
9
2
8
9
3
0
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
3
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
Light Rain
Light Rain
Snow
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
8
11
19
2
10
25
6
30
40
29
73
94
80
27
5
0
3
12

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0.8
0.7
0
0
0
0
0

Wind Speed/Direction (mph)

14
11
7
4
4
4
6
6
9
12
14
15
17
18
18
17
14
15
17
16
17
17
16
18

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-12
-12
-11
-9
-9
-8
-9
-8
-7
-7
-7
-7
-7
-6
-6
-4
-3
-4
-5
-5
-4
-4
-4
-5

Dew Point (°C)

-14
-15
-15
-14
-13
-12
-10
-8
-5
-5
-6
-7
-6
-6
-5
-4
-3
-0
1
0
-1
-2
-3
-4

Relative Humidity (%)

60
58
58
58
62
63
65
69
75
75
66
61
59
59
59
65
69
85
96
86
79
80
73
71

Pressure (mb)

1018
1019
1020
1020
1020
1020
1020
1019
1017
1015
1014
1012
1010
1009
1007
1007
1006
1006
1006
1006
1006
1006
1007
1008

Ozone (du)

350
345
341
334
330
329
330
329
327
323
315
308
309
308
310
314
317
316
317
323
327
327
330
327

Sunday 21

Waxing Crescent 3%

09:18

17:46

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

Sun - Rise: 07:40, Set: 16:31, Transit: 12:05. Moon - Rise: 09:18, Set: 17:46. Civil Dark: 17:04 - 07:07. Nautical Dark: 17:41 - 06:30. Astro Dark: 18:16 - 05:54

Total Clouds (% Sky Obscured)

68
45
35
52
81
76
63
63
66
90
91
77
34
51
20
3
2
2
2
14
21
46
24
76

Low Clouds (% Sky Obscured)

68
5
35
52
70
68
52
52
50
80
87
65
34
31
20
0
0
0
0
0
0
0
0
73

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
6
6
0
0
0
0
0
0
0
0
0
12
19
34
15
36

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
8
9
9
9
9
8
9
9
7
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 (%)

13
18
2
1
1
4
7
19
10
18
23
11
4
1
0
0
1
0
0
0
0
0
0
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)

20
19
17
16
14
14
14
15
16
15
14
14
15
14
14
13
12
11
10
9
9
8
7
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-5
-6
-9
-10
-10
-9
-9
-9
-8
-8
-7
-9
-10
-10
-11
-12
-13
-13
-13
-14
-14
-14
-14
-13

Relative Humidity (%)

67
72
64
60
66
66
66
64
64
68
72
62
63
66
66
64
66
65
65
65
63
63
64
67

Pressure (mb)

1009
1010
1012
1014
1016
1017
1018
1018
1018
1018
1019
1020
1022
1023
1025
1027
1028
1029
1030
1030
1031
1031
1031
1032

Ozone (du)

330
332
331
333
338
338
334
337
335
336
341
341
342
345
342
345
341
340
341
348
364
369
367
366

Monday 22

Waxing Crescent 7%

09:52

18:54

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
02 Bad
03 Bad

Sun - Rise: 07:40, Set: 16:31, Transit: 12:06. Moon - Rise: 09:52, Set: 18:54. Civil Dark: 17:04 - 07:07. Nautical Dark: 17:41 - 06:30. Astro Dark: 18:17 - 05:55

Total Clouds (% Sky Obscured)

99
89
99
100
100
96
87
94
69
71
76
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

95
69
46
52
49
35
27
41
53
50
54
45
96
36
52
45
94
87
100
81
87
90
93
95

Medium Clouds (% Sky Obscured)

41
82
32
100
81
95
85
91
51
50
47
100
100
100
100
100
100
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

0
0
0
0
0
0
2
44
60
70
70
98
83
100
100
100
72
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
8
0
9
9
9
9
9
9
9
9
9
9
9
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

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

Precipitation Probability (%)

6
6
10
27
20
15
8
3
1
1
1
1
0
1
2
34
63
76
72
69
64
49
75
89

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.4
0.4
0.3
0.3
0.1
0.4
0.6

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-12
-12
-11
-11
-10
-9
-8
-7
-7
-6
-5
-5
-5
-5
-5
-5
-5
-5
-4
-4
-4
-4
-4
-4

Dew Point (°C)

-13
-13
-12
-10
-9
-8
-7
-7
-7
-6
-5
-5
-5
-5
-5
-5
-2
-2
-2
-1
-1
-1
-1
-1

Relative Humidity (%)

67
68
70
76
82
82
76
72
68
67
70
71
75
77
75
74
94
98
98
100
98
98
96
98

Pressure (mb)

1031
1031
1031
1030
1030
1030
1030
1029
1028
1027
1026
1026
1026
1026
1026
1025
1025
1024
1024
1023
1022
1021
1021
1020

Ozone (du)

370
360
354
353
351
349
352
355
356
355
354
350
349
347
340
331
327
326
325
326
325
323
321
319

Tuesday 23

Waxing Crescent 13%

10:20

20:04

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
02 Bad
03 Bad

Sun - Rise: 07:41, Set: 16:32, Transit: 12:06. Moon - Rise: 10:20, Set: 20:04. Civil Dark: 17:05 - 07:07. Nautical Dark: 17:42 - 06:31. Astro Dark: 18:17 - 05:55

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
99
98
97
97
97
97
95
95
87
81
79
81
82
81
61
72
72
65

Low Clouds (% Sky Obscured)

95
94
94
93
93
93
90
88
85
87
90
92
89
86
82
81
79
81
82
81
61
72
72
65

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
96
93
86
74
73
60
73
48
36
33
29
21
17
9
0
0
0
0

High Clouds (% Sky Obscured)

82
70
35
30
0
20
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
8
9
9
9
9
8
6
8
8

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

Precipitation Probability (%)

95
95
95
95
93
79
92
95
95
85
76
77
48
34
25
18
16
13
12
10
11
12
11
8

Precipitation Amount (mm)

0.7
1.2
1.4
1.4
0.6
0.5
0.7
0.7
0.8
0.5
0.4
0.5
0.2
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

100
100
100
98
100
98
100
100
100
100
100
100
98
98
94
92
94
92
92
94
94
94
92
94

Pressure (mb)

1019
1018
1017
1017
1016
1016
1015
1014
1014
1013
1013
1013
1014
1014
1015
1016
1017
1018
1018
1019
1020
1020
1021
1022

Ozone (du)

315
310
310
314
312
308
309
310
311
313
316
319
321
326
325
325
326
326
328
327
327
327
325
322

Wednesday 24

Waxing Crescent 21%

10:43

21:14

04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 OK
10 OK
11 OK
12 OK
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

Sun - Rise: 07:41, Set: 16:32, Transit: 12:07. Moon - Rise: 10:43, Set: 21:14. Civil Dark: 17:06 - 07:08. Nautical Dark: 17:42 - 06:31. Astro Dark: 18:18 - 05:56

Total Clouds (% Sky Obscured)

60
58
59
55
47
36
27
29
17
39
65
80
85
90
99
99
100
100
100
100
100
99
98
96

Low Clouds (% Sky Obscured)

60
58
59
55
47
36
27
21
1
1
0
0
7
14
22
14
7
0
13
26
39
26
13
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
1
0
3
1
29
34
65
80
84
86
87
88
89
92
96
100
99
98
96

High Clouds (% Sky Obscured)

0
0
0
0
0
1
2
3
4
17
65
80
85
82
97
98
99
100
100
100
100
86
71
57

ISS Passover

Visibility (miles)

8
8
8
8
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8

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
6
5
5
5
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
10
18
28

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
92
94
94
94
94
92
92
91
91
89
92
94
92
91
91
89
89
87
87
87
89
91
91

Pressure (mb)

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

Ozone (du)

321
320
319
322
320
319
317
316
318
319
315
313
311
311
311
312
311
310
309
309
309
309
310
310

Thursday 25

Waxing Crescent 30%

11:04

22:24

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
02 Bad
03 Bad

Sun - Rise: 07:41, Set: 16:33, Transit: 12:07. Moon - Rise: 11:04, Set: 22:24. Civil Dark: 17:06 - 07:08. Nautical Dark: 17:43 - 06:31. Astro Dark: 18:18 - 05:56

Total Clouds (% Sky Obscured)

97
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
97
94
92
90
89
88

Low Clouds (% Sky Obscured)

33
67
100
100
100
100
100
100
100
100
100
100
100
100
100
99
99
98
96
94
92
89
87
85

Medium Clouds (% Sky Obscured)

97
98
100
80
60
40
43
44
45
45
45
50
50
50
50
60
75
90
78
70
55
55
55
55

High Clouds (% Sky Obscured)

50
48
44
42
46
53
71
78
85
87
85
84
70
53
39
62
84
100
93
87
80
80
85
85

ISS Passover

Visibility (miles)

7
8
9
9
6
3
0
0
0
0
0
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

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

Precipitation Probability (%)

33
38
38
40
39
34
31
26
18
14
9
6
12
17
17
30
31
29
35
39
35
28
40
54

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)

7
7
7
8
8
8
8
7
6
6
5
5
6
7
8
8
8
9
10
10
11
13
14
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
94
94
96
98
98
100
100
100
100
100
100
100
100
100
98
100
100
98
98
98
98
100
98

Pressure (mb)

1020
1019
1019
1018
1017
1017
1017
1015
1014
1013
1013
1012
1012
1011
1011
1010
1009
1008
1006
1006
1005
1005
1005
1005

Ozone (du)

310
311
313
314
314
315
315
312
310
308
305
302
299
297
296
295
292
289
286
284
283
282
279
276

Friday 26

Waxing Crescent 41%

11:23

23:35

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

Sun - Rise: 07:42, Set: 16:34, Transit: 12:08. Moon - Rise: 11:23, Set: 23:35. Civil Dark: 17:07 - 07:08. Nautical Dark: 17:44 - 06:32. Astro Dark: 18:19 - 05:56

Total Clouds (% Sky Obscured)

92
93
95
96
96
95
96
98
99
99
99
100
95
90
86
85
82
63
36
42
49

Low Clouds (% Sky Obscured)

88
89
92
90
88
86
89
92
94
86
80
79
66
53
39
39
41
37
36
42
49

Medium Clouds (% Sky Obscured)

55
50
50
55
70
75
72
78
80
73
62
59
51
43
40
40
45
30
20
26
26

High Clouds (% Sky Obscured)

92
93
95
96
96
95
96
98
96
83
74
74
60
45
31
39
46
54
36
42
49

ISS Passover

Visibility (miles)

0
0
0
0
0
0
0
3
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

Precipitation Type

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

Precipitation Probability (%)

94
95
95
95
95
95
95
65
32
24
16
2
9
10
4
12
19
27
41
51
65

Precipitation Amount (mm)

0.6
1.1
1.3
1.3
1.7
1.6
0.7
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0.2

Wind Speed/Direction (mph)

14
14
13
13
13
14
16
16
17
19
18
18
18
15
12
8
8
8
8
7
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-2
-2
-3
-3
-0
1
0
1
2
3
2
1
-1
-0
-0
-1
-9
-9
-9
-9
-9

Dew Point (°C)

3
4
4
5
5
7
7
7
6
5
4
2
-0
-2
-5
-7
-8
-10
-11
-13
-15

Relative Humidity (%)

100
100
100
100
98
100
98
94
93
88
83
79
75
73
71
68
65
63
60
54
50

Pressure (mb)

1004
1004
1004
1003
1003
1004
1004
1003
1003
1003
1004
1006
1007
1009
1011
1013
1013
1014
1015
1015
1015

Ozone (du)

274
273
273
272
272
272
272
279
286
293
299
306
312
315
318
321
331
340
350
357
365

Forecast for Yarker, Lennox and Addington County, Canada (44.37,-76.77)

Generated: 20/12/25 04:00:32. Forecast: 20/12/25 to 26/12/25. Timezone: UTC-5.00