Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 12

Waning Crescent 44%

01:32

12:44

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

Sun - Rise: 07:47, Set: 16:36, Transit: 12:12. Moon - Rise: 01:32, Set: 12:44. Civil Dark: 17:10 - 07:14. Nautical Dark: 17:47 - 06:37. Astro Dark: 18:23 - 06:01

Total Clouds (% Sky Obscured)

57
60
78
74
84
78
42
31
40
52
67
53
48
50
59
80
100
100
100
100
96
100
98
98

Low Clouds (% Sky Obscured)

57
60
74
68
66
63
26
29
35
46
64
46
13
16
42
80
100
77
40
65
62
88
85
81

Medium Clouds (% Sky Obscured)

2
5
15
11
14
7
0
0
0
0
0
0
15
43
42
16
100
100
100
100
91
100
95
96

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
6
4
4
96
95
95
39
0
0
0
0

ISS Passover

Visibility (miles)

9
6
3
2
2
1
2
9
9
8
9
9
9
9
9
4
0
0
0
7
9
4
5
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
Snow
Snow
Snow
None
None
None
Snow
Snow
None

Precipitation Probability (%)

0
0
0
22
23
24
9
7
6
6
3
5
9
13
28
52
59
50
29
10
15
39
46
40

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0.5
0.3
0
0
0
0.1
0.2
0

Wind Speed/Direction (mph)

6
7
7
7
8
8
8
8
9
9
9
8
8
5
2
2
3
3
5
9
8
8
8
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-17
-15
-14
-13
-9
-9
-8
-8
-7
-7
-6
-5
-5
-5
-7
-9
-8
-6
-5
-6
-6
-6
-7
-7

Relative Humidity (%)

81
84
88
88
88
89
90
89
84
84
86
84
84
89
90
92
92
94
94
86
87
92
92
90

Pressure (mb)

1015
1015
1015
1015
1015
1015
1016
1016
1016
1016
1015
1015
1015
1015
1016
1016
1016
1016
1015
1014
1014
1014
1013
1013

Ozone (du)

354
349
344
345
345
343
345
352
354
341
338
343
343
344
343
340
338
339
347
349
350
356
363
362

Saturday 13

Waning Crescent 34%

02:37

13:00

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
02 Bad

Sun - Rise: 07:48, Set: 16:37, Transit: 12:12. Moon - Rise: 02:37, Set: 13:00. Civil Dark: 17:10 - 07:14. Nautical Dark: 17:47 - 06:37. Astro Dark: 18:23 - 06:02

Total Clouds (% Sky Obscured)

99
100
94
96
99
100
95
100
100
97
100
100
100
100
99
97
100
100
100
100
100
98
94
94

Low Clouds (% Sky Obscured)

80
90
73
85
99
99
86
100
100
86
86
100
100
100
98
97
100
100
100
100
100
96
86
73

Medium Clouds (% Sky Obscured)

68
65
31
25
60
13
8
50
50
37
55
55
65
41
60
60
60
60
60
55
56
57
89
76

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)

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

Precipitation Probability (%)

28
41
51
62
79
86
85
69
55
65
65
65
57
56
50
53
57
67
73
77
75
72
91
82

Precipitation Amount (mm)

0
0
0
0.3
0.6
0.8
0.8
0.4
0.2
0.4
0.5
0.6
0.3
0.3
0.2
0.3
0.4
0.6
0.8
0.9
0.9
0.7
1.3
0.7

Wind Speed/Direction (mph)

9
9
9
10
11
11
10
11
12
11
13
12
12
11
10
9
8
7
5
4
3
4
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-11
-11
-11
-11
-11
-11
-9
-9
-11
-11
-11
-11
-12
-12
-12
-12
-12
-12
-12
-12
-12
-13
-14
-14

Dew Point (°C)

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

Relative Humidity (%)

92
87
89
89
92
90
94
89
69
74
82
82
79
77
76
73
74
82
90
92
90
90
90
92

Pressure (mb)

1012
1011
1010
1009
1009
1009
1009
1010
1010
1010
1010
1011
1012
1012
1013
1014
1014
1014
1014
1014
1015
1015
1015
1016

Ozone (du)

361
354
360
368
369
368
366
373
370
367
365
360
358
360
365
374
377
377
376
379
384
392
397
396

Sunday 14

Waning Crescent 25%

No Rise

13:18

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

Sun - Rise: 07:49, Set: 16:37, Transit: 12:13. Moon - Rise: No Rise, Set: 13:18. Civil Dark: 17:10 - 07:15. Nautical Dark: 17:48 - 06:38. Astro Dark: 18:23 - 06:02

Total Clouds (% Sky Obscured)

66
61
65
62
38
11
10
12
42
72
77
72
82
86
85
52
34
27
10
33
27
39
43
52

Low Clouds (% Sky Obscured)

23
28
30
22
13
3
3
3
17
30
32
46
76
79
75
32
23
18
7
33
27
22
19
23

Medium Clouds (% Sky Obscured)

13
5
0
6
0
3
3
3
15
59
23
11
0
0
0
0
0
0
0
0
0
0
9
17

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
22
43
45

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

46
43
30
7
2
1
1
1
2
14
1
15
3
2
2
4
3
4
2
1
1
1
1
2

Precipitation Amount (mm)

0
0.1
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
8
7
7
7
6
7
8
9
9
10
10
10
9
9
9
8
7
5
5
5
4
3

Chance of Frost

Temperature (°C)

-11
-12
-13
-14
-15
-16
-17
-16
-16
-15
-14
-13
-13
-13
-13
-13
-13
-13
-13
-13
-14
-14
-14
-14

Feels Like (°C)

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

Dew Point (°C)

-12
-14
-15
-16
-17
-19
-19
-19
-18
-17
-16
-16
-15
-15
-15
-15
-15
-15
-15
-15
-15
-16
-16
-17

Relative Humidity (%)

92
88
86
84
84
81
80
80
81
84
83
81
83
83
83
84
84
84
86
86
86
86
84
82

Pressure (mb)

1016
1017
1018
1019
1020
1021
1023
1023
1024
1024
1024
1024
1025
1026
1027
1027
1028
1029
1029
1029
1029
1029
1029
1029

Ozone (du)

401
401
394
385
380
377
371
361
351
336
341
335
340
335
349
360
363
356
349
344
335
330
318
306

Monday 15

Waning Crescent 17%

03:42

13:38

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
02 Bad

Sun - Rise: 07:49, Set: 16:37, Transit: 12:13. Moon - Rise: 03:42, Set: 13:38. Civil Dark: 17:11 - 07:16. Nautical Dark: 17:48 - 06:39. Astro Dark: 18:24 - 06:03

Total Clouds (% Sky Obscured)

60
75
88
100
100
100
100
100
100
100
100
99
98
99
99
100
96
93
89
91
92
93
87
76

Low Clouds (% Sky Obscured)

29
16
41
55
74
80
86
89
95
100
97
94
90
85
81
76
75
75
77
83
88
92
79
66

Medium Clouds (% Sky Obscured)

60
75
88
100
100
100
100
100
100
100
98
97
86
68
65
98
88
76
22
18
8
0
0
0

High Clouds (% Sky Obscured)

60
63
81
100
100
100
100
100
100
100
68
40
20
47
74
100
77
40
0
0
0
0
0
0

ISS Passover

Visibility (miles)

3
7
5
4
9
7
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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
None
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
None

Precipitation Probability (%)

1
4
3
0
3
12
29
61
71
73
85
90
82
72
66
67
71
71
71
67
54
41
41
26

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-14
-14
-14
-15
-14
-14
-13
-12
-10
-8
-6
-6
-6
-6
-7
-7
-8
-8
-8
-8
-7
-7
-7
-7

Feels Like (°C)

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

Dew Point (°C)

-17
-16
-16
-17
-16
-15
-14
-13
-11
-9
-7
-7
-7
-7
-8
-8
-8
-8
-8
-8
-8
-7
-7
-8

Relative Humidity (%)

82
86
84
84
86
88
90
92
94
92
92
92
94
94
94
92
94
94
96
94
96
96
94
94

Pressure (mb)

1029
1028
1028
1028
1027
1027
1026
1024
1023
1020
1019
1018
1017
1016
1015
1015
1015
1015
1015
1015
1015
1015
1015
1016

Ozone (du)

300
287
280
274
274
278
284
288
289
292
295
295
295
298
302
305
315
320
315
311
309
309
307
307

Tuesday 16

Waning Crescent 11%

04:48

14:01

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
02 Bad

Sun - Rise: 07:50, Set: 16:37, Transit: 12:14. Moon - Rise: 04:48, Set: 14:01. Civil Dark: 17:11 - 07:16. Nautical Dark: 17:48 - 06:39. Astro Dark: 18:24 - 06:04

Total Clouds (% Sky Obscured)

73
77
71
86
89
95
96
61
87
100
100
100
100
99
97
96
93
89
85
90
95
100
100
100

Low Clouds (% Sky Obscured)

59
63
64
77
75
73
71
54
59
87
87
82
74
79
57
53
59
65
70
61
50
38
30
26

Medium Clouds (% Sky Obscured)

0
0
0
0
22
42
58
57
56
56
57
54
100
94
89
84
73
60
45
44
50
50
48
45

High Clouds (% Sky Obscured)

1
7
10
16
21
30
36
43
52
58
74
88
100
73
47
9
9
6
4
35
68
100
100
100

ISS Passover

Visibility (miles)

2
2
3
3
3
3
3
9
9
9
7
9
9
8
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 (%)

8
9
3
1
2
2
0
2
2
2
3
8
6
7
6
0
4
2
2
6
3
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
92
88
86
85
85
90
87
85
89
89
87
91
92
91
89
89
90
89
90
90
90
90
89

Pressure (mb)

1017
1018
1019
1020
1021
1021
1021
1022
1021
1020
1019
1018
1018
1017
1017
1016
1016
1015
1014
1013
1012
1010
1009
1008

Ozone (du)

301
297
294
293
290
286
280
274
271
269
266
264
263
265
265
265
264
266
268
269
270
271
273
274

Wednesday 17

Waning Crescent 6%

05:54

14:31

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
02 Bad

Sun - Rise: 07:51, Set: 16:38, Transit: 12:14. Moon - Rise: 05:54, Set: 14:31. Civil Dark: 17:11 - 07:17. Nautical Dark: 17:49 - 06:40. Astro Dark: 18:24 - 06:04

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
99
99
98
97
94
92
89
87
91
96
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

22
35
49
61
73
85
97
97
97
97
97
97
94
92
89
87
91
96
98
94
89
84
82
77

Medium Clouds (% Sky Obscured)

41
61
78
91
90
87
82
70
64
61
43
29
13
27
33
25
20
15
15
43
70
100
100
99

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
68
37
15
25
39
44
51
53
56
70
90
100
96
93
96
79
72

ISS Passover

Visibility (miles)

9
9
9
9
9
9
8
8
5
3
0
1
2
4
2
1
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
Snow
Snow
Snow
Snow
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
6
11
15
14
13
16
42
58
71
63
52
36
33
26
15
23
29
36
43
44
41
39
39

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

10
10
10
10
10
10
10
11
11
11
11
11
10
10
9
8
7
6
4
4
4
4
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-9
-9
-9
-8
-8
-5
-4
-4
-4
-4
-4
-4
-4
-4
-3
-3
-3
-3
-3
-2
-2
-2
-2
-3

Dew Point (°C)

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

Relative Humidity (%)

87
87
89
92
96
98
98
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Pressure (mb)

1008
1007
1006
1005
1005
1005
1005
1005
1005
1005
1005
1006
1007
1009
1009
1010
1011
1012
1012
1012
1013
1013
1013
1012

Ozone (du)

275
276
279
281
284
286
289
291
290
289
288
289
290
291
293
294
295
298
301
303
306
309
311
313

Thursday 18

Waning Crescent 2%

06:58

15:08

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 OK
00 OK

Sun - Rise: 07:51, Set: 16:38, Transit: 12:15. Moon - Rise: 06:58, Set: 15:08. Civil Dark: 17:12 - 07:18. Nautical Dark: 17:49 - 06:40. Astro Dark: 18:25 - 06:05

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
93
86
79
67
55
47
40
30
20

Low Clouds (% Sky Obscured)

73
71
72
73
83
92
100
100
100
100
100
100
99
93
86
79
67
55
47
40
30
20

Medium Clouds (% Sky Obscured)

98
98
96
95
77
59
39
42
40
45
45
45
45
45
45
40
15
15
20
25
30
20

High Clouds (% Sky Obscured)

62
56
54
44
26
8
4
3
2
0
13
33
50
65
80
79
67
55
47
40
30
20

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

38
46
47
43
37
33
30
64
81
90
85
82
76
73
64
49
31
17
9
6
4
5

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.3
0.5
0.7
0.5
0.4
0.3
0.3
0.3
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

100
100
100
100
98
98
100
100
100
100
100
96
93
89
89
89
89
88
88
86
84
84

Pressure (mb)

1012
1012
1011
1010
1010
1009
1008
1007
1006
1005
1004
1004
1005
1005
1005
1006
1007
1007
1007
1008
1008
1008

Ozone (du)

314
315
314
312
311
311
312
312
311
311
310
311
312
313
315
317
318
317
316
315
316
318

Forecast for Glen Echo, Canada (44.94,-79.51)

Generated: 12/12/25 03:52:56. Forecast: 12/12/25 to 18/12/25. Timezone: UTC-5.00