Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 20

Waxing Crescent 3%

09:19

16:43

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
10 Bad
11 Bad
12 Bad
13 Bad
14 OK
15 OK

Sun - Rise: 07:41, Set: 16:31, Transit: 12:06. Moon - Rise: 09:19, Set: 16:43. Civil Dark: 17:04 - 07:08. Nautical Dark: 17:41 - 06:31. Astro Dark: 18:16 - 05:56

Total Clouds (% Sky Obscured)

85
88
90
100
100
100
96
91
83
84
100
92
76
55
72
87
88
92
98
97
71
56
38
41

Low Clouds (% Sky Obscured)

0
5
0
0
40
100
68
88
78
83
100
92
65
55
68
81
83
85
95
92
71
56
38
41

Medium Clouds (% Sky Obscured)

85
88
90
100
100
97
84
11
0
0
0
23
0
0
0
0
0
3
10
10
23
12
0
0

High Clouds (% Sky Obscured)

85
88
90
100
100
88
20
29
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
8
2
9
0
0
0
9
9
9
9
8
3
9
9
9
3
0
0
1
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

Sleet
Sleet
None
Sleet
Snow
Snow
Snow
None
None
None
None
None
None
None
None
None
None
None
Snow
None
None
None
None
None

Precipitation Probability (%)

67
78
31
53
95
89
66
12
4
5
23
24
14
3
3
8
18
23
29
21
18
16
5
3

Precipitation Amount (mm)

0.5
0.4
0
0.2
1.1
0.7
0.4
0
0
0
0
0
0
0
0
0
0
0
0.1
0
0
0
0
0

Wind Speed/Direction (mph)

12
12
13
13
13
15
15
14
16
15
15
18
18
16
15
14
12
11
12
12
12
12
12
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

69
63
62
77
94
96
96
93
78
80
74
71
78
65
67
74
79
85
87
79
66
65
65
66

Pressure (mb)

1010
1009
1007
1006
1006
1005
1005
1004
1005
1005
1006
1006
1008
1010
1012
1014
1015
1016
1017
1018
1018
1018
1020
1021

Ozone (du)

322
321
322
320
319
322
320
324
330
332
334
334
336
338
337
333
330
331
331
335
337
341
347
347

Sunday 21

Waxing Crescent 7%

09:54

17:46

16 Bad
17 Bad
18 OK
19 OK
20 Good
21 Good
22 Good
23 Good
00 Good
01 Good
02 Good
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

Sun - Rise: 07:42, Set: 16:31, Transit: 12:07. Moon - Rise: 09:54, Set: 17:46. Civil Dark: 17:05 - 07:08. Nautical Dark: 17:42 - 06:32. Astro Dark: 18:17 - 05:56

Total Clouds (% Sky Obscured)

74
46
43
16
17
8
2
3
3
6
11
79
100
100
100
100
100
100
86
87
66
74
84
91

Low Clouds (% Sky Obscured)

63
46
28
16
17
5
0
0
0
0
0
72
68
83
68
68
43
32
27
29
37
64
71
75

Medium Clouds (% Sky Obscured)

0
0
0
0
1
1
0
0
1
4
7
66
52
53
52
56
91
100
80
80
62
60
72
78

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
70
70
60
60
60
77

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
2
0
0
7
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 (%)

1
0
0
0
0
0
0
0
0
1
0
0
1
23
17
21
30
17
20
4
3
1
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)

12
12
11
10
10
9
8
7
6
5
4
5
6
4
3
4
5
5
6
8
9
9
8
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-10
-11
-12
-13
-13
-14
-14
-14
-14
-14
-14
-14
-13
-13
-12
-11
-10
-9
-8
-7
-6
-5
-5
-4

Relative Humidity (%)

69
70
70
69
71
69
71
71
72
72
73
75
75
75
75
80
88
87
82
79
78
76
78
80

Pressure (mb)

1022
1024
1026
1027
1029
1029
1030
1031
1031
1031
1031
1032
1032
1031
1031
1030
1030
1029
1029
1028
1027
1026
1026
1026

Ozone (du)

343
344
346
345
343
348
350
356
363
362
371
373
369
365
357
352
354
355
351
353
357
356
358
356

Monday 22

Waxing Crescent 13%

10:22

18:55

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
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 07:42, Set: 16:32, Transit: 12:07. Moon - Rise: 10:22, Set: 18:55. Civil Dark: 17:05 - 07:09. Nautical Dark: 17:42 - 06:32. Astro Dark: 18:18 - 05:57

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

92
93
99
100
99
93
43
31
82
95
93
83
99
99
100
94
100
95
94
89
88
92
96
100

Medium Clouds (% Sky Obscured)

75
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
98
100
100
100
92
84
75

High Clouds (% Sky Obscured)

100
43
100
100
100
100
100
100
100
100
100
100
100
100
81
66
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
0
0
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
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow

Precipitation Probability (%)

1
1
2
28
66
64
52
54
57
48
74
91
91
95
95
95
95
95
95
95
92
74
90
89

Precipitation Amount (mm)

0
0
0
0
0.4
0.4
0.2
0.2
0.2
0.1
0.3
0.5
0.4
0.8
0.9
0.7
0.9
0.9
0.8
0.8
0.7
0.4
0.6
0.5

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-1
-1
-1
-1
-1
-1
-2

Feels Like (°C)

-5
-5
-6
-5
-6
-5
-5
-5
-5
-6
-5
-5
-5
-5
-5
-6
-6
-5
-5
-4
-4
-5
-4
-5

Dew Point (°C)

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

Relative Humidity (%)

84
91
91
86
87
96
96
98
98
98
98
98
98
98
98
98
98
98
98
98
98
98
100
98

Pressure (mb)

1026
1026
1026
1026
1026
1025
1024
1024
1023
1022
1022
1021
1019
1018
1017
1017
1016
1015
1015
1014
1012
1011
1011
1011

Ozone (du)

356
353
343
333
328
325
327
326
329
327
325
324
321
316
317
313
311
311
314
316
314
316
314
318

Tuesday 23

Waxing Crescent 21%

10:45

20:05

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
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 07:43, Set: 16:32, Transit: 12:08. Moon - Rise: 10:45, Set: 20:05. Civil Dark: 17:06 - 07:09. Nautical Dark: 17:43 - 06:32. Astro Dark: 18:18 - 05:57

Total Clouds (% Sky Obscured)

100
99
99
99
99
99
94
88
80
71
60
66
63
84
82
83
93
93
90
85
78
81
86
92

Low Clouds (% Sky Obscured)

96
91
87
91
94
98
92
86
80
71
60
66
63
84
82
83
90
91
87
82
78
66
59
53

Medium Clouds (% Sky Obscured)

82
89
97
77
59
47
34
7
10
2
3
2
0
0
0
0
0
0
0
2
3
27
69
81

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
4
8
10
22
28
25

ISS Passover

Visibility (miles)

0
0
0
0
0
0
0
0
4
9
9
7
7
7
7
7
3
7
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

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

Precipitation Probability (%)

81
66
70
60
51
43
32
25
11
11
11
10
8
5
1
1
2
1
2
0
0
2
1
1

Precipitation Amount (mm)

0.4
0.3
0.4
0.3
0.2
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-6
-7
-8
-8
-8
-7
-6
-6
-7
-7
-6
-7
-8
-7
-9
-9
-10
-8
-7
-7
-7
-7
-6
-6

Dew Point (°C)

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

Relative Humidity (%)

96
96
96
94
94
94
92
92
92
92
94
92
92
94
92
94
92
90
89
87
87
91
94
94

Pressure (mb)

1011
1011
1012
1012
1013
1013
1013
1014
1015
1016
1018
1019
1020
1022
1023
1024
1026
1027
1027
1027
1027
1027
1027
1027

Ozone (du)

325
328
326
328
331
334
334
334
332
331
331
330
323
323
321
320
321
318
317
317
311
310
305
304

Wednesday 24

Waxing Crescent 21%

11:05

21:15

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
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 07:43, Set: 16:33, Transit: 12:08. Moon - Rise: 11:05, Set: 21:15. Civil Dark: 17:06 - 07:10. Nautical Dark: 17:43 - 06:33. Astro Dark: 18:19 - 05:57

Total Clouds (% Sky Obscured)

94
94
95
93
90
90
93
97
100
99
98
97
99
99
98
96
95
94
94
84
66
77
87
100

Low Clouds (% Sky Obscured)

47
42
37
26
15
10
23
44
63
59
55
51
46
40
35
25
15
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

86
82
77
89
89
90
93
94
97
95
94
81
90
61
28
22
14
12
6
4
0
6
22
43

High Clouds (% Sky Obscured)

35
35
40
35
35
30
57
78
100
82
70
37
45
91
15
17
5
1
1
2
2
35
68
100

ISS Passover

Visibility (miles)

9
9
8
9
9
9
9
1
4
4
7
8
9
7
9
6
4
2
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
None

Precipitation Probability (%)

0
0
2
0
0
3
19
33
16
8
13
19
15
10
4
6
4
0
2
3
2
3
2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

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

Pressure (mb)

1027
1027
1027
1027
1027
1027
1026
1026
1025
1024
1024
1024
1023
1023
1022
1022
1022
1021
1021
1020
1020
1019
1019
1018

Ozone (du)

303
303
301
301
299
301
303
304
306
307
309
309
308
307
306
305
302
300
297
298
298
299
297
295

Thursday 25

Waxing Crescent 30%

11:24

22:25

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
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 07:43, Set: 16:34, Transit: 12:09. Moon - Rise: 11:24, Set: 22:25. Civil Dark: 17:07 - 07:10. Nautical Dark: 17:44 - 06:33. Astro Dark: 18:19 - 05:58

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
99

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
19
38
56
71
85
100
95
91
87
89
93
95
93
94
94
92
90
88

Medium Clouds (% Sky Obscured)

57
67
81
84
90
96
89
83
77
77
75
64
59
62
58
67
84
97
85
73
55
54
43
42

High Clouds (% Sky Obscured)

100
100
100
100
100
100
87
81
75
75
70
70
75
66
66
68
65
50
39
13
8
8
7
10

ISS Passover

Visibility (miles)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
6

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
Very Light Rain
Light Rain
Light Rain
Light Rain
Frozen rai
Frozen rai
Frozen rai
Frozen rai
Frozen rai
Frozen rai
Frozen rai
Frozen rai
Snow

Precipitation Probability (%)

1
1
1
2
3
1
5
8
11
38
51
60
73
82
82
94
95
95
95
95
95
95
81
62

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.3
0.4
0.5
0.4
0.5
0.7
0.7
0.8
0.9
1.1
0.8
0.5
0.3

Wind Speed/Direction (mph)

5
5
6
6
6
6
6
6
6
6
7
7
7
7
6
6
6
6
7
8
9
11
11
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-4
-4
-5
-5
-6
-7
-7
-6
-6
-6
-6
-6
-6
-5
-5
-5
-5
-5
-4
-5
-4
-4
-4
-5

Dew Point (°C)

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

Relative Humidity (%)

98
100
98
98
98
100
98
98
100
100
100
98
98
98
98
100
100
100
100
100
100
100
92
87

Pressure (mb)

1018
1018
1018
1018
1017
1016
1014
1013
1012
1010
1009
1007
1006
1004
1003
1002
1001
1001
1000
999
999
998
1000
1001

Ozone (du)

293
293
293
293
293
293
293
292
292
292
291
289
288
292
295
298
301
303
305
310
314
319
324
329

Friday 26

Waxing Crescent 41%

11:43

23:36

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

Sun - Rise: 07:43, Set: 16:34, Transit: 12:09. Moon - Rise: 11:43, Set: 23:36. Civil Dark: 17:08 - 07:10. Nautical Dark: 17:45 - 06:33. Astro Dark: 18:20 - 05:58

Total Clouds (% Sky Obscured)

90
80
62
41
28
15
14
18
22
20
19
13
25
38
46
45
43
15
5
10
25

Low Clouds (% Sky Obscured)

75
62
49
41
28
15
14
18
22
20
19
13
25
38
46
45
43
15
5
10
25

Medium Clouds (% Sky Obscured)

38
39
39
23
10
0
0
0
0
0
1
1
2
3
5
3
4
2
4
8
12

High Clouds (% Sky Obscured)

6
5
10
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

Fog (%)

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

Precipitation Probability (%)

53
43
31
26
18
0
0
0
0
0
0
0
0
0
0
0
0
0
5
9
12

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

16
14
14
12
11
10
9
8
7
7
7
7
6
6
6
5
5
6
6
6
5

Chance of Frost

Temperature (°C)

-3
-5
-6
-7
-8
-8
-9
-10
-11
-12
-12
-13
-13
-13
-14
-14
-14
-13
-13
-12
-12

Feels Like (°C)

-6
-6
-5
-4
-13
-13
-13
-14
-14
-14
-17
-16
-16
-16
-17
-17
-18
-17
-18
-18
-18

Dew Point (°C)

-6
-8
-10
-11
-12
-12
-14
-15
-16
-17
-17
-17
-18
-18
-19
-19
-19
-18
-19
-18
-18

Relative Humidity (%)

81
79
76
76
72
72
71
69
67
67
67
67
68
67
66
67
65
63
62
60
59

Pressure (mb)

1003
1006
1008
1011
1013
1014
1016
1017
1018
1020
1020
1021
1022
1023
1024
1025
1025
1026
1026
1026
1026

Ozone (du)

334
344
355
365
373
381
388
387
385
383
387
391
396
392
388
384
381
378
375
369
364

Forecast for Erinsville, Lennox and Addington County, Canada (44.48,-77.05)

Generated: 20/12/25 15:42:44. Forecast: 20/12/25 to 26/12/25. Timezone: UTC-5.00