Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 10

Waning Gibbous 54%

23:19

12:27

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

Sun - Rise: 07:46, Set: 16:36, Transit: 12:11. Moon - Rise: 23:19, Set: 12:27. Civil Dark: 17:10 - 07:13. Nautical Dark: 17:47 - 06:36. Astro Dark: 18:23 - 06:00

Total Clouds (% Sky Obscured)

94
92
72
69
58
47
46
46
8
27
27
34
46
49
36
42
40
27
10
6
4
0
0
1

Low Clouds (% Sky Obscured)

82
74
66
66
58
47
46
46
5
0
0
33
46
49
27
31
28
26
9
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
2
0
0
0
0
0
0
19
19
10
2
0
26
0
0
0
0
0
0
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)

4
2
3
4
8
9
9
9
8
8
8
8
8
8
8
6
5
5
7
8
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 (%)

4
6
11
1
2
3
5
7
9
12
12
10
10
9
7
6
8
7
8
7
4
2
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
11
11
10
10
9
9
8
8
8
8
8
8
9
10
10
10
9
9
8
9
9
9
9

Chance of Frost

Temperature (°C)

-10
-12
-12
-13
-14
-14
-15
-15
-15
-15
-15
-15
-14
-12
-12
-11
-10
-10
-11
-11
-11
-12
-12
-12

Feels Like (°C)

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

Dew Point (°C)

-12
-14
-14
-15
-16
-17
-17
-17
-18
-18
-18
-18
-16
-16
-15
-14
-13
-13
-14
-14
-15
-15
-15
-15

Relative Humidity (%)

83
85
85
83
83
81
79
78
78
79
78
79
81
76
76
76
80
83
80
80
76
75
73
75

Pressure (mb)

1001
1001
1002
1003
1004
1005
1005
1006
1006
1007
1007
1007
1008
1008
1007
1007
1007
1008
1008
1009
1010
1010
1011
1011

Ozone (du)

367
368
376
382
386
389
388
385
388
391
391
396
400
399
397
391
388
389
388
390
390
388
385
379

Thursday 11

Third Quarter 44%

00:27

12:44

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

Sun - Rise: 07:47, Set: 16:36, Transit: 12:12. Moon - Rise: 00:27, 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)

2
5
5
4
22
48
47
49
31
37
23
17
48
74
80
87
93
93
84
74
78
93
96
100

Low Clouds (% Sky Obscured)

0
0
0
0
22
48
47
49
31
37
23
17
37
52
63
75
86
85
63
48
23
28
71
89

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
17
16
36
45
73
98

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
11
65
82

ISS Passover

Visibility (miles)

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

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
1
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
Snow
Snow

Precipitation Probability (%)

1
3
1
1
2
5
9
10
7
2
1
2
6
22
21
21
17
8
14
8
22
22
30
46

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
0.1
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-12
-12
-13
-13
-13
-13
-14
-14
-14
-14
-13
-11
-9
-7
-5
-4
-4
-3
-3
-4
-5
-6
-6
-6

Feels Like (°C)

-15
-16
-16
-15
-16
-15
-16
-16
-16
-15
-15
-13
-11
-10
-9
-9
-9
-8
-8
-8
-8
-8
-9
-10

Dew Point (°C)

-15
-15
-15
-15
-15
-16
-16
-16
-16
-16
-16
-13
-10
-8
-6
-6
-6
-5
-5
-5
-6
-7
-6
-7

Relative Humidity (%)

76
78
79
81
83
83
83
83
83
81
81
85
87
89
90
87
87
87
87
90
94
94
96
94

Pressure (mb)

1012
1012
1013
1013
1013
1014
1014
1014
1014
1015
1015
1015
1015
1015
1014
1014
1014
1014
1014
1014
1015
1015
1015
1014

Ozone (du)

376
375
374
373
370
371
367
365
365
363
365
369
365
365
360
355
350
354
358
362
354
357
353
356

Friday 12

Waning Crescent 34%

01:32

13:00

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
21 Bad

Sun - Rise: 07:48, Set: 16:37, Transit: 12:12. Moon - Rise: 01:32, 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)

100
100
100
100
100
98
98
99
98
98
99
100
100
100
100
97
94
91
94
97
100
100
100
100

Low Clouds (% Sky Obscured)

85
83
83
84
58
89
91
93
92
83
94
100
100
100
100
96
91
86
91
96
100
100
99
100

Medium Clouds (% Sky Obscured)

97
99
100
100
100
96
96
96
92
91
94
89
100
90
45
30
19
10
54
38
50
50
57
56

High Clouds (% Sky Obscured)

43
18
11
2
2
0
0
0
0
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
1
2
0
3
0
0
1
1
0
0
1
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

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

Precipitation Probability (%)

54
56
49
53
52
52
53
45
49
41
46
59
60
66
70
76
67
74
79
74
70
60
58
59

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

3
3
4
4
7
7
7
8
8
8
8
8
9
10
11
11
10
11
11
11
10
10
9
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-9
-9
-9
-8
-9
-9
-9
-10
-10
-10
-10
-10
-10
-9
-9
-8
-9
-10
-11
-11
-12
-12
-12
-12

Dew Point (°C)

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

Relative Humidity (%)

96
96
94
94
94
94
96
92
94
94
94
94
94
89
87
92
89
84
94
94
92
92
90
89

Pressure (mb)

1014
1014
1013
1013
1012
1012
1012
1011
1010
1010
1010
1010
1010
1010
1009
1009
1010
1010
1011
1012
1012
1013
1013
1013

Ozone (du)

358
360
362
363
364
363
360
362
368
369
368
373
376
375
371
374
382
379
377
377
375
372
368
363

Saturday 13

Waning Crescent 25%

02:37

13:18

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
21 Bad

Sun - Rise: 07:49, Set: 16:37, Transit: 12:13. Moon - Rise: 02:37, 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)

100
100
100
92
83
75
66
60
53
63
72
82
87
91
97
93
88
85
79
74
64
56
52
45

Low Clouds (% Sky Obscured)

99
98
96
87
77
64
53
47
39
35
34
36
54
69
83
80
78
77
66
59
50
36
31
28

Medium Clouds (% Sky Obscured)

55
55
61
77
73
70
52
42
46
53
69
69
40
40
51
50
23
2
2
1
0
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)

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

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

Precipitation Probability (%)

64
61
56
59
64
61
51
45
53
46
26
10
17
10
8
7
17
5
4
4
2
4
4
2

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

7
7
6
5
5
6
5
5
5
5
8
8
9
9
10
10
10
10
10
10
9
9
9
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-12
-12
-12
-13
-14
-14
-14
-14
-15
-15
-18
-18
-19
-19
-19
-18
-17
-16
-16
-16
-17
-17
-17
-17

Dew Point (°C)

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

Relative Humidity (%)

92
94
94
94
92
92
94
94
92
94
90
90
84
84
84
84
83
83
83
83
83
83
83
84

Pressure (mb)

1013
1014
1014
1015
1015
1016
1016
1016
1017
1018
1019
1020
1021
1022
1022
1022
1023
1024
1025
1026
1027
1028
1029
1029

Ozone (du)

363
364
370
366
366
373
380
389
391
390
386
378
374
365
356
340
330
328
333
337
337
336
350
356

Sunday 14

Waning Crescent 17%

03:42

13:38

22 OK
23 OK
00 OK
01 OK
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

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)

27
4
22
24
39
71
73
87
100
100
100
100
100
100
100
99
98
96
96
98
99
99
100
100

Low Clouds (% Sky Obscured)

19
3
14
18
21
29
41
62
57
57
57
55
58
65
75
86
90
94
95
96
97
98
99
100

Medium Clouds (% Sky Obscured)

0
0
0
6
11
17
40
87
93
95
97
100
100
100
100
93
86
80
82
86
88
58
29
0

High Clouds (% Sky Obscured)

0
0
0
1
6
23
48
74
100
100
100
100
68
37
5
4
4
3
0
0
0
0
1
0

ISS Passover

Visibility (miles)

6
8
3
5
6
7
6
5
7
9
9
9
9
6
3
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
Snow
None
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow

Precipitation Probability (%)

4
5
2
3
5
2
3
5
2
14
19
19
37
41
40
49
55
65
68
72
78
73
72
73

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-13
-14
-15
-15
-16
-16
-16
-16
-15
-16
-14
-12
-11
-10
-8
-7
-6
-6
-6
-6
-6
-6
-6
-5

Feels Like (°C)

-18
-18
-18
-19
-18
-19
-20
-20
-19
-20
-19
-19
-20
-18
-18
-17
-11
-12
-13
-13
-12
-12
-10
-10

Dew Point (°C)

-15
-16
-17
-17
-18
-18
-18
-19
-18
-18
-16
-15
-13
-11
-10
-8
-7
-7
-7
-7
-7
-7
-7
-6

Relative Humidity (%)

86
86
84
84
82
81
81
80
81
81
83
83
85
87
88
89
92
94
94
94
92
92
94
94

Pressure (mb)

1029
1029
1030
1030
1030
1030
1030
1030
1029
1029
1028
1027
1026
1024
1022
1020
1019
1018
1016
1016
1016
1015
1015
1015

Ozone (du)

352
343
341
317
290
282
278
280
277
277
279
281
283
286
289
291
293
294
295
294
293
292
295
299

Monday 15

Waning Crescent 11%

04:48

14:01

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
21 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)

93
87
78
81
83
89
87
89
83
86
89
91
94
94
96
96
95
95
88
89
90
92
94
95

Low Clouds (% Sky Obscured)

93
87
78
81
78
72
59
50
42
56
65
75
76
79
79
81
85
89
84
80
76
77
80
86

Medium Clouds (% Sky Obscured)

0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
6
9

High Clouds (% Sky Obscured)

0
0
0
14
22
31
35
43
50
47
31
16
9
9
1
2
1
0
17
30
50
68
81
83

ISS Passover

Visibility (miles)

0
0
0
0
3
6
9
7
5
2
5
7
9
9
9
9
9
9
9
7
5
3
3
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

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

Precipitation Probability (%)

72
70
70
58
46
35
39
38
33
32
25
9
12
12
9
10
8
2
6
6
0
4
5
4

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

8
6
5
6
5
4
4
4
3
3
2
2
2
2
3
4
3
3
4
4
5
5
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-10
-10
-9
-9
-8
-7
-7
-6
-5
-5
-14
-14
-15
-15
-14
-14
-6
-6
-5
-5
-5
-4
-10
-11

Dew Point (°C)

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

Relative Humidity (%)

94
94
94
94
92
89
87
87
85
85
85
88
89
89
87
85
89
90
92
92
92
90
92
92

Pressure (mb)

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

Ozone (du)

302
305
307
310
309
309
308
302
296
289
287
285
282
279
276
273
271
269
267
264
260
257
255
254

Tuesday 16

Waning Crescent 6%

05:54

14:31

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

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)

97
98
99
99
100
100
96
92
87
92
96
100
100
100
100

Low Clouds (% Sky Obscured)

73
61
51
58
69
79
78
77
77
81
88
100
100
100
100

Medium Clouds (% Sky Obscured)

13
21
27
33
39
45
40
36
28
14
15
21
28
35
42

High Clouds (% Sky Obscured)

87
93
98
99
99
100
95
89
84
77
69
59
79
89
98

ISS Passover

Visibility (miles)

3
5
7
9
9
9
9
9
9
9
9
9
9
6
3

Fog (%)

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
Snow
Snow
Snow
Snow

Precipitation Probability (%)

3
3
1
4
2
0
3
3
1
17
26
34
46
51
56

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.1
0.2
0.2
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-11
-12
-12
-13
-10
-10
-10
-10
-11
-10
-8
-8
-8
-8
-8

Dew Point (°C)

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

Relative Humidity (%)

92
90
92
90
90
92
90
92
92
92
92
92
91
94
96

Pressure (mb)

1023
1022
1021
1021
1020
1020
1019
1018
1018
1017
1016
1015
1015
1013
1012

Ozone (du)

252
253
254
256
257
259
260
261
262
263
265
267
270
275
280

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

Generated: 10/12/25 21:13:54. Forecast: 10/12/25 to 16/12/25. Timezone: UTC-5.00