Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 22

Waxing Crescent 26%

09:58

21:38

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
16 Bad
17 Bad
18 Bad

Sun - Rise: 07:45, Set: 17:14, Transit: 12:30. Moon - Rise: 09:58, Set: 21:38. Civil Dark: 17:46 - 07:13. Nautical Dark: 18:21 - 06:38. Astro Dark: 18:56 - 06:03

Total Clouds (% Sky Obscured)

100
100
99
100
100
100
100
100
94
100
100
100
100
100
100
100
100
88
100
100
67
47
39
34

Low Clouds (% Sky Obscured)

100
100
99
100
100
99
100
100
90
87
100
100
100
100
100
100
100
88
100
100
67
47
39
34

Medium Clouds (% Sky Obscured)

55
55
55
50
66
100
100
100
91
100
100
100
100
100
100
96
32
19
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)

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

Precipitation Probability (%)

0
0
41
48
67
76
68
59
50
55
52
56
51
64
78
67
40
31
33
26
14
17
14
12

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

14
14
12
14
13
9
8
7
6
5
4
4
6
5
6
7
10
13
13
15
13
12
10
9

Chance of Frost

Temperature (°C)

-10
-11
-12
-11
-11
-12
-14
-14
-15
-16
-17
-17
-18
-18
-18
-18
-18
-18
-18
-19
-19
-20
-21
-21

Feels Like (°C)

-17
-18
-19
-18
-18
-17
-19
-19
-20
-20
-20
-21
-22
-22
-23
-23
-24
-25
-24
-26
-26
-25
-25
-25

Dew Point (°C)

-13
-14
-16
-16
-16
-14
-15
-16
-18
-18
-18
-19
-20
-20
-20
-20
-21
-22
-21
-22
-23
-24
-26
-26

Relative Humidity (%)

80
80
72
65
67
84
86
84
81
85
85
85
82
81
82
82
78
69
76
73
69
67
58
60

Pressure (mb)

1015
1016
1016
1016
1016
1016
1017
1018
1018
1019
1019
1020
1022
1023
1024
1025
1026
1027
1027
1028
1029
1030
1032
1033

Ozone (du)

459
446
438
432
426
421
426
412
403
395
392
393
398
401
410
429
449
456
455
454
453
449
441
436

Friday 23

Waxing Crescent 36%

10:17

22:51

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

Sun - Rise: 07:44, Set: 17:15, Transit: 12:30. Moon - Rise: 10:17, Set: 22:51. Civil Dark: 17:47 - 07:13. Nautical Dark: 18:23 - 06:37. Astro Dark: 18:57 - 06:02

Total Clouds (% Sky Obscured)

39
40
41
2
2
2
2
2
4
3
6
12
32
52
58
40
36
36
58
85
91
88
30
25

Low Clouds (% Sky Obscured)

39
40
41
0
0
0
0
0
0
1
1
2
6
11
42
38
36
36
58
74
75
75
2
1

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
2
3
4
9

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
5
12
4
26
19
21
12

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
8
5
6
8
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 (%)

10
8
5
6
4
3
3
4
3
5
6
7
7
6
6
2
2
3
4
2
2
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)

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

Chance of Frost

Temperature (°C)

-22
-23
-23
-24
-24
-25
-26
-27
-28
-28
-28
-29
-29
-29
-26
-24
-23
-22
-20
-20
-19
-19
-20
-20

Feels Like (°C)

-26
-26
-27
-27
-27
-28
-29
-29
-30
-30
-30
-31
-32
-32
-30
-28
-25
-24
-22
-23
-23
-23
-23
-22

Dew Point (°C)

-27
-27
-28
-28
-28
-29
-30
-31
-31
-31
-32
-32
-33
-32
-30
-28
-27
-26
-24
-23
-23
-22
-22
-23

Relative Humidity (%)

64
66
66
65
65
66
67
67
68
67
68
69
70
70
70
67
67
69
69
72
71
75
78
76

Pressure (mb)

1034
1035
1036
1037
1037
1038
1039
1039
1040
1040
1040
1041
1042
1042
1042
1042
1042
1042
1041
1040
1040
1040
1040
1040

Ozone (du)

430
426
414
400
394
394
400
379
355
335
323
319
322
324
327
325
324
327
326
322
317
315
314
311

Saturday 24

Waxing Crescent 47%

10:39

00:06

19 OK
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
16 Bad
17 Bad
18 Bad

Sun - Rise: 07:43, Set: 17:17, Transit: 12:30. Moon - Rise: 10:39, Set: 00:06. Civil Dark: 17:48 - 07:12. Nautical Dark: 18:24 - 06:36. Astro Dark: 18:59 - 06:02

Total Clouds (% Sky Obscured)

15
60
70
80
84
85
86
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

1
11
19
20
26
23
22
20
13
4
4
4
4
3
2
4
5
27
38
66
82
52
52
54

Medium Clouds (% Sky Obscured)

4
12
0
27
23
41
43
43
39
54
63
41
100
100
100
100
100
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

3
28
27
38
40
45
53
97
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

8
7
3
3
3
3
3
3
8
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
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 (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
20
26
30
37
41
44

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
0.1

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-21
-21
-22
-22
-22
-23
-23
-23
-23
-22
-22
-22
-22
-22
-21
-21
-20
-19
-18
-17
-17
-16
-16
-16

Feels Like (°C)

-23
-23
-25
-26
-26
-27
-27
-27
-27
-27
-27
-27
-26
-26
-26
-25
-24
-23
-23
-22
-21
-20
-21
-21

Dew Point (°C)

-23
-24
-25
-25
-26
-26
-26
-26
-26
-25
-25
-25
-25
-25
-24
-24
-23
-22
-21
-21
-20
-19
-19
-18

Relative Humidity (%)

76
75
74
74
73
73
74
74
75
75
75
75
75
74
75
74
75
73
74
74
75
78
81
85

Pressure (mb)

1040
1040
1040
1040
1040
1040
1039
1039
1039
1038
1037
1036
1036
1036
1035
1034
1033
1032
1030
1029
1028
1027
1026
1025

Ozone (du)

307
300
296
298
298
299
298
302
303
301
295
297
297
296
293
293
293
291
288
289
291
293
294
295

Sunday 25

First Quarter 59%

11:04

01:24

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
16 Bad
17 OK
18 Bad

Sun - Rise: 07:42, Set: 17:18, Transit: 12:30. Moon - Rise: 11:04, Set: 01:24. Civil Dark: 17:50 - 07:11. Nautical Dark: 18:25 - 06:35. Astro Dark: N/A - 06:01

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
92
83
77
71
25
27

Low Clouds (% Sky Obscured)

62
66
66
67
57
55
63
67
75
79
75
76
80
80
76
70
68
68
63
46
30
33
22
27

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
95
100
100
100
100
100
89
75
57
23
12
0

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
86
73
62
64
64
69
56
43
30
30
23
13
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
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
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 (%)

43
41
40
40
40
40
39
37
35
33
31
29
25
20
14
12
10
9
8
5
4
3
2
2

Precipitation Amount (mm)

0.1
0.1
0.1
0.1
0.1
0.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-16
-16
-16
-16
-17
-17
-17
-17
-17
-18
-18
-18
-18
-18
-18
-18
-17
-16
-15
-15
-15
-15
-16
-18

Feels Like (°C)

-20
-21
-21
-20
-21
-21
-21
-21
-22
-22
-22
-22
-22
-23
-22
-22
-21
-21
-20
-20
-20
-20
-20
-20

Dew Point (°C)

-18
-18
-19
-18
-19
-19
-19
-19
-20
-20
-20
-21
-21
-22
-21
-22
-21
-20
-19
-19
-19
-18
-18
-20

Relative Humidity (%)

85
84
82
85
83
84
84
81
80
79
79
78
76
74
73
70
70
71
74
73
72
77
83
82

Pressure (mb)

1025
1024
1023
1022
1021
1021
1020
1019
1019
1018
1018
1018
1018
1018
1018
1018
1018
1017
1017
1017
1017
1017
1018
1019

Ozone (du)

295
298
297
295
294
296
302
307
309
308
309
308
317
329
334
338
347
355
365
376
380
383
389
391

Monday 26

Waxing Gibbous 56%

11:38

02:44

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
16 Bad
17 Bad
18 Bad

Sun - Rise: 07:41, Set: 17:19, Transit: 12:30. Moon - Rise: 11:38, Set: 02:44. Civil Dark: 17:51 - 07:10. Nautical Dark: 18:26 - 06:35. Astro Dark: 19:00 - 06:00

Total Clouds (% Sky Obscured)

33
49
75
84
89
93
95
98
100
100
100
100
98
97
96
98
99
100
99
99
98
98
99
100

Low Clouds (% Sky Obscured)

33
49
70
75
77
78
77
77
78
81
86
92
92
92
93
93
93
94
97
98
98
98
99
100

Medium Clouds (% Sky Obscured)

0
0
0
12
61
71
81
91
100
100
100
100
97
95
93
96
97
100
81
65
52
60
72
80

High Clouds (% Sky Obscured)

0
0
0
0
2
0
9
19
39
32
26
20
19
14
7
1
1
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

1
2
4
19
22
23
30
33
25
25
27
36
51
54
56
66
67
66
68
69
70
70
70
75

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-21
-21
-23
-24
-23
-22
-22
-22
-22
-24
-23
-23
-23
-23
-23
-23
-23
-23
-23
-20
-19
-19
-18
-17

Dew Point (°C)

-21
-22
-23
-23
-21
-20
-19
-19
-18
-20
-20
-19
-19
-19
-19
-19
-18
-17
-16
-15
-14
-13
-13
-13

Relative Humidity (%)

81
80
80
78
82
85
87
88
88
82
78
83
88
87
88
88
90
90
90
90
92
92
92
92

Pressure (mb)

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

Ozone (du)

381
384
378
380
378
378
388
380
387
383
385
382
379
382
385
388
386
383
380
384
388
391
397
403

Tuesday 27

Waxing Gibbous 71%

12:22

04:04

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 OK
10 OK
11 OK
12 OK
13 OK
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad

Sun - Rise: 07:40, Set: 17:21, Transit: 12:31. Moon - Rise: 12:22, Set: 04:04. Civil Dark: 17:52 - 07:09. Nautical Dark: 18:28 - 06:34. Astro Dark: 19:01 - 05:59

Total Clouds (% Sky Obscured)

100
99
99
99
98
98
97
95
93
67
38
15
14
12
11
12
15
15
33
54
73
83
83
84

Low Clouds (% Sky Obscured)

97
95
91
94
96
98
97
95
93
67
38
15
14
12
11
12
15
15
33
54
73
71
67
65

Medium Clouds (% Sky Obscured)

78
77
78
69
69
68
52
32
11
7
3
0
0
0
0
0
0
0
0
0
0
2
5
9

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
4
12
18
28

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

67
63
63
59
53
50
45
40
31
29
24
14
15
12
6
9
7
3
5
5
3
6
7
7

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-12
-12
-13
-13
-13
-14
-14
-15
-16
-17
-18
-19
-21
-20
-19
-18
-17
-16
-14
-14
-14
-14
-16
-17

Feels Like (°C)

-17
-17
-16
-16
-16
-16
-16
-17
-17
-16
-15
-15
-15
-26
-26
-27
-27
-26
-25
-18
-18
-19
-17
-15

Dew Point (°C)

-13
-13
-14
-14
-15
-15
-15
-17
-18
-19
-20
-22
-24
-23
-22
-21
-20
-19
-18
-18
-17
-17
-18
-20

Relative Humidity (%)

92
92
92
92
90
90
88
86
84
82
81
79
76
76
77
75
75
75
73
74
76
77
79
79

Pressure (mb)

1011
1012
1012
1013
1013
1014
1014
1015
1016
1017
1018
1019
1020
1020
1020
1021
1021
1021
1020
1020
1020
1020
1021
1021

Ozone (du)

409
417
425
433
439
444
450
451
451
452
454
455
457
457
457
457
456
456
455
449
443
437
433
430

Wednesday 28

Waxing Gibbous 81%

13:21

05:18

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

Sun - Rise: 07:39, Set: 17:22, Transit: 12:31. Moon - Rise: 13:21, Set: 05:18. Civil Dark: 17:54 - 07:08. Nautical Dark: 18:29 - 06:33. Astro Dark: 19:02 - 05:58

Total Clouds (% Sky Obscured)

86
86
85
85
90
94
96
97
98
99
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

62
59
58
64
70
78
80
83
89
87
86
84
84
85
86
87
87
88

Medium Clouds (% Sky Obscured)

16
25
35
50
67
76
69
62
55
70
85
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

41
65
76
79
77
65
60
50
50
27
11
7
4
2
0
0
0
0

ISS Passover

Visibility (miles)

7
7
7
7
6
5
4
3
1
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

Precipitation Type

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

Precipitation Probability (%)

8
8
7
7
6
3
12
17
20
23
25
27
28
29
29
32
35
37

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-13
-24
-24
-24
-25
-25
-25
-22
-23
-23
-23
-22
-23
-21
-20
-21
-21
-20

Dew Point (°C)

-21
-21
-21
-21
-21
-20
-20
-20
-19
-18
-18
-18
-18
-17
-16
-16
-15
-14

Relative Humidity (%)

81
81
81
81
82
83
83
85
86
87
87
87
87
88
88
88
88
86

Pressure (mb)

1021
1021
1021
1021
1021
1021
1020
1020
1020
1019
1019
1019
1019
1019
1018
1018
1018
1018

Ozone (du)

426
424
423
421
427
432
438
443
448
453
445
437
430
435
440
445
447
448

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

Generated: 22/01/26 19:03:02. Forecast: 22/01/26 to 28/01/26. Timezone: UTC-5.00