Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 12

Waning Crescent 44%

01:32

12:44

02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
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

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)

66
65
70
60
81
89
50
49
38
43
52
64
65
53
52
57
78
100
100
100
100
95
97
100

Low Clouds (% Sky Obscured)

66
65
70
47
70
64
27
30
29
30
32
47
45
29
27
40
78
80
67
64
66
45
78
86

Medium Clouds (% Sky Obscured)

0
5
2
12
8
34
6
0
0
0
0
0
8
15
21
11
33
100
100
100
100
85
93
100

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
1
4
87
85
81
90
90
0
0

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

0
0
16
15
18
17
23
12
7
5
5
4
4
5
9
13
31
50
60
50
23
13
18
50

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-16
-14
-14
-13
-10
-7
-7
-6
-6
-5
-4
-4
-3
-3
-4
-6
-7
-8
-7
-5
-4
-4
-5
-6

Feels Like (°C)

-17
-16
-15
-15
-14
-12
-11
-11
-11
-9
-9
-8
-8
-7
-7
-8
-10
-11
-10
-8
-8
-8
-10
-10

Dew Point (°C)

-18
-17
-16
-14
-12
-9
-8
-8
-8
-7
-7
-6
-5
-5
-5
-7
-8
-9
-8
-6
-5
-6
-7
-7

Relative Humidity (%)

81
81
83
86
88
87
89
90
87
85
84
84
84
84
87
92
92
90
92
94
92
85
89
90

Pressure (mb)

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

Ozone (du)

352
354
349
345
345
345
343
346
352
351
340
341
345
344
344
343
342
339
339
351
356
354
359
365

Saturday 13

Waning Crescent 34%

No Rise

13:00

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: 07:48, Set: 16:37, Transit: 12:12. Moon - Rise: No Rise, 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
99
97
81
98
99
86
100
100
100
97
100
100
100
100
100
100
100
100
100
100
100
100
99

Low Clouds (% Sky Obscured)

84
88
77
55
98
99
79
100
100
55
97
100
100
100
100
100
100
100
100
100
100
100
100
98

Medium Clouds (% Sky Obscured)

100
79
44
17
53
47
0
65
65
65
0
60
60
60
55
55
60
55
55
55
51
51
45
42

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
3
4
2
6
0
0
0
7
3
3
1
0
0
0
0
3
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

Snow
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 (%)

52
40
44
48
61
83
78
72
75
64
62
74
78
76
76
70
71
71
75
77
82
80
67
53

Precipitation Amount (mm)

0.2
0
0
0
0.3
0.8
0.6
0.3
0.5
0.3
0.3
0.8
0.9
0.9
0.9
0.7
0.7
0.7
0.8
0.9
1
0.9
0.4
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
92
89
89
90
92
94
92
75
69
76
85
89
89
89
90
85
87
90
88
90
90
90
90

Pressure (mb)

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

Ozone (du)

362
359
356
365
372
369
372
371
374
375
369
366
360
358
362
371
376
374
373
373
379
387
394
397

Sunday 14

Waning Crescent 25%

02:37

13:18

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 OK
20 OK
21 OK
22 OK
23 Bad
00 OK
01 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)

96
96
76
62
59
52
26
58
58
64
69
69
72
85
84
70
44
29
19
16
12
24
29
47

Low Clouds (% Sky Obscured)

86
66
30
25
24
30
22
57
36
38
46
51
55
79
84
70
44
29
19
16
12
24
27
23

Medium Clouds (% Sky Obscured)

37
36
9
15
1
0
0
1
58
57
65
3
3
3
0
0
0
0
0
0
0
0
0
3

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
5
25

ISS Passover

Visibility (miles)

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

Fog (%)

0
0
0
0
0
4
40
82
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

52
51
48
17
11
7
5
4
3
5
15
15
5
3
1
5
12
4
4
3
4
4
3
2

Precipitation Amount (mm)

0.2
0.2
0.2
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
5
7
5
4
5
5
7
8
9
9
10
10
10
10
9
8
8
7
5
6
5
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-15
-16
-16
-18
-18
-19
-20
-20
-21
-21
-21
-19
-19
-19
-19
-19
-19
-19
-19
-18
-16
-17
-18
-18

Dew Point (°C)

-12
-13
-14
-15
-17
-18
-20
-20
-19
-18
-18
-17
-16
-16
-15
-16
-16
-16
-16
-16
-16
-16
-16
-17

Relative Humidity (%)

90
88
88
84
81
81
79
79
82
81
81
82
83
83
84
84
84
84
83
84
86
86
84
84

Pressure (mb)

1017
1017
1018
1018
1019
1020
1022
1022
1023
1023
1023
1023
1023
1024
1025
1026
1027
1028
1028
1028
1028
1029
1029
1029

Ozone (du)

400
402
403
393
382
375
373
371
361
355
351
345
342
336
338
335
349
354
357
355
351
338
326
306

Monday 15

Waning Crescent 17%

03:42

13:38

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: 07:49, 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)

71
83
87
94
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
94
98
61
92
73

Low Clouds (% Sky Obscured)

32
29
37
28
48
78
88
93
93
93
92
90
88
86
91
96
100
100
100
94
94
61
57
73

Medium Clouds (% Sky Obscured)

13
53
69
81
100
100
100
100
99
96
97
98
99
65
44
27
12
8
4
2
32
7
9
5

High Clouds (% Sky Obscured)

47
64
75
87
100
100
100
100
99
97
96
98
92
71
47
23
0
0
0
0
0
0
5
0

ISS Passover

Visibility (miles)

3
3
5
9
9
9
9
5
0
0
0
0
0
0
0
0
0
0
0
5
0
7
9
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
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow

Precipitation Probability (%)

3
1
2
4
0
3
14
39
56
73
74
70
71
75
71
76
70
65
57
60
58
47
41
38

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-15
-15
-16
-15
-16
-15
-14
-13
-12
-10
-8
-7
-7
-7
-7
-7
-7
-8
-7
-7
-7
-7
-7
-8

Feels Like (°C)

-19
-19
-20
-19
-19
-18
-18
-17
-17
-15
-13
-13
-12
-12
-12
-13
-13
-12
-12
-12
-11
-12
-10
-12

Dew Point (°C)

-18
-17
-18
-16
-17
-17
-16
-15
-14
-11
-9
-8
-8
-8
-8
-8
-8
-9
-8
-9
-8
-9
-9
-10

Relative Humidity (%)

82
83
83
86
85
86
86
86
90
92
94
89
90
92
92
94
94
92
94
85
94
87
83
85

Pressure (mb)

1029
1029
1028
1028
1027
1027
1026
1026
1025
1023
1020
1019
1018
1017
1016
1016
1015
1015
1015
1015
1015
1015
1016
1016

Ozone (du)

290
286
287
282
278
276
275
281
287
294
289
290
293
295
300
304
315
315
310
315
312
310
308
308

Tuesday 16

Waning Crescent 11%

04:48

14:01

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: 07:50, 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)

86
77
64
60
43
42
52
54
58
79
100
97
95
94
97
98
100
100
99
98
97
95
94
96

Low Clouds (% Sky Obscured)

79
75
59
49
30
29
35
29
34
41
59
67
69
72
69
68
67
62
57
52
41
29
15
38

Medium Clouds (% Sky Obscured)

2
0
0
0
0
3
6
9
23
36
97
95
90
87
87
88
89
73
58
43
38
30
25
29

High Clouds (% Sky Obscured)

0
0
0
0
0
1
15
20
47
73
100
68
37
5
37
67
100
95
91
87
91
94
92
82

ISS Passover

Visibility (miles)

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

Snow
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 (%)

37
37
33
30
8
6
6
3
11
4
13
18
19
20
21
18
13
14
9
2
3
1
0
1

Precipitation Amount (mm)

0.1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
88
88
86
88
86
88
92
90
92
92
94
91
90
90
90
90
90
89
87
87
87
87
89

Pressure (mb)

1017
1018
1018
1019
1019
1020
1020
1021
1021
1021
1019
1018
1016
1016
1015
1015
1014
1013
1012
1011
1010
1009
1008
1007

Ozone (du)

304
298
295
291
283
278
274
269
266
263
260
258
256
255
254
256
259
261
263
264
266
268
270
272

Wednesday 17

Waning Crescent 6%

05:54

14:31

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: 12:14. 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)

98
100
100
100
100
100
100
100
100
100
100
99
99
98
88
78
68
77
84
91
94
97
100
100

Low Clouds (% Sky Obscured)

62
87
90
95
100
100
100
100
100
100
100
98
95
92
86
78
68
65
60
54
53
55
55
65

Medium Clouds (% Sky Obscured)

32
41
54
72
84
93
97
99
95
91
87
83
75
68
48
25
6
8
9
11
41
70
100
98

High Clouds (% Sky Obscured)

76
69
76
87
100
100
99
99
74
50
26
26
28
28
28
22
19
43
67
83
87
92
100
100

ISS Passover

Visibility (miles)

9
9
9
6
3
0
0
0
0
0
0
0
3
6
9
9
9
9
8
7
6
4
2
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 (%)

1
2
12
15
18
19
19
16
19
20
18
24
24
22
21
17
9
9
7
1
4
8
10
13

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)

10
10
10
10
11
11
11
12
12
12
12
12
12
11
11
10
9
9
8
6
5
5
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
94
98
98
98
98
100
100
100
100
100
100
100
100
100
98
98
98
98
98
100
100
100
98

Pressure (mb)

1006
1006
1005
1004
1004
1004
1004
1004
1005
1005
1005
1006
1007
1008
1008
1010
1011
1012
1013
1014
1014
1014
1015
1015

Ozone (du)

274
275
277
279
281
282
285
288
291
292
293
294
295
295
296
297
298
299
300
301
302
302
302
302

Thursday 18

Waning Crescent 2%

06:58

15:08

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)

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 Glen Echo, Canada (44.94,-79.51)

Generated: 12/12/25 01:15:42. Forecast: 12/12/25 to 18/12/25. Timezone: UTC-5.00