Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 27

Waxing Gibbous 70%

12:41

03:27

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

Sun - Rise: 07:16, Set: 17:25, Transit: 12:21. Moon - Rise: 12:41, Set: 03:27. Civil Dark: 17:53 - 06:48. Nautical Dark: 18:25 - 06:16. Astro Dark: 18:57 - 05:45

Total Clouds (% Sky Obscured)

31
63
75
48
44
53
83
88
47
20
2
2
8
1
1
2
2
1
0
2
63
100
100
100

Low Clouds (% Sky Obscured)

31
63
43
38
41
53
82
83
30
0
0
0
8
0
0
0
0
0
0
0
0
5
41
64

Medium Clouds (% Sky Obscured)

10
10
12
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
23
68
100
100

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
56
100
40

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

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
0
0
1
0
0
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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)

11
11
7
6
5
8
6
4
4
5
6
5
4
4
4
4
5
7
8
6
4
3
4
5

Chance of Frost

Temperature (°C)

-1
-2
-2
-2
-4
-4
-5
-7
-8
-9
-10
-11
-12
-13
-14
-14
-13
-10
-9
-7
-6
-5
-5
-5

Feels Like (°C)

-5
-5
-7
-6
-7
-8
-8
-11
-11
-13
-14
-13
-14
-15
-16
-16
-16
-13
-12
-9
-8
-9
-9
-8

Dew Point (°C)

-6
-6
-6
-5
-5
-7
-8
-9
-9
-11
-12
-13
-14
-15
-16
-17
-16
-14
-13
-12
-11
-11
-11
-10

Relative Humidity (%)

70
72
76
84
87
76
81
88
90
87
86
85
85
83
83
81
81
74
68
67
67
65
64
68

Pressure (mb)

1017
1017
1017
1018
1019
1020
1021
1021
1022
1023
1024
1024
1025
1025
1026
1026
1026
1026
1026
1026
1024
1023
1022
1021

Ozone (du)

334
338
345
349
349
348
351
354
362
377
375
368
362
359
363
359
361
362
370
369
367
373
389
424

Wednesday 28

Waxing Gibbous 81%

13:41

04:38

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

Sun - Rise: 07:15, Set: 17:27, Transit: 12:21. Moon - Rise: 13:41, Set: 04:38. Civil Dark: 17:55 - 06:47. Nautical Dark: 18:26 - 06:15. Astro Dark: 18:58 - 05:44

Total Clouds (% Sky Obscured)

96
98
93
84
35
30
29
30
26
22
3
15
23
17
10
2
2
0
0
2
22
18
66
75

Low Clouds (% Sky Obscured)

83
96
84
66
7
5
0
0
0
0
0
14
23
17
10
0
0
0
0
0
22
9
0
13

Medium Clouds (% Sky Obscured)

96
97
93
75
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
63
71

High Clouds (% Sky Obscured)

50
55
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
2
4
4
5

ISS Passover

Visibility (miles)

9
9
9
9
8
0
3
3
3
6
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
4
64
8
1
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
5
9
8
9
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-8
-9
-10
-10
-11
-12
-11
-13
-15
-16
-16
-15
-17
-17
-17
-17
-16
-12
-10
-8
-7
-7
-9
-8

Dew Point (°C)

-8
-7
-8
-8
-9
-9
-9
-11
-13
-14
-15
-15
-17
-17
-17
-17
-16
-13
-13
-11
-11
-10
-10
-9

Relative Humidity (%)

79
87
89
90
90
92
92
92
86
84
83
83
82
84
81
82
83
75
70
68
66
65
65
65

Pressure (mb)

1021
1020
1020
1021
1021
1022
1022
1022
1022
1022
1023
1023
1023
1024
1024
1024
1025
1025
1026
1026
1025
1024
1024
1024

Ozone (du)

457
479
480
482
488
495
499
492
459
440
419
399
383
375
374
373
375
379
376
374
375
372
371
370

Thursday 29

Waxing Gibbous 90%

14:51

05:41

16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Good
01 OK
02 OK
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: 07:14, Set: 17:28, Transit: 12:21. Moon - Rise: 14:51, Set: 05:41. Civil Dark: 17:56 - 06:46. Nautical Dark: 18:27 - 06:14. Astro Dark: 18:59 - 05:43

Total Clouds (% Sky Obscured)

71
64
53
49
44
42
42
36
3
16
43
57
66
83
91
93
93
96
95
97
93
91
88
85

Low Clouds (% Sky Obscured)

17
9
0
0
0
0
0
0
0
0
0
0
0
0
5
0
0
0
0
5
18
18
9
5

Medium Clouds (% Sky Obscured)

67
62
53
49
42
41
42
35
1
12
42
56
64
82
87
93
93
96
95
94
85
86
87
85

High Clouds (% Sky Obscured)

2
2
20
24
4
1
1
0
1
2
1
1
1
1
1
10
9
7
9
1
0
2
12
25

ISS Passover

Visibility (miles)

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

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
48
65
66
66
66
66
66
66
66
66
66

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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
12
14
9
14

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-7
-8
-11
-12
-14
-15
-16
-16
-16
-15
-17
-17
-17
-16
-16
-16
-14
-13
-12
-11
-9
-9
-9
-9

Dew Point (°C)

-8
-7
-9
-10
-11
-13
-14
-15
-16
-16
-16
-15
-15
-15
-15
-14
-13
-12
-11
-11
-10
-9
-9
-8

Relative Humidity (%)

69
87
88
88
88
88
88
86
86
86
84
86
88
88
88
88
85
78
74
73
74
77
77
79

Pressure (mb)

1024
1024
1024
1025
1025
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1027
1027
1027
1027
1026
1025
1025
1024

Ozone (du)

368
363
361
361
364
367
365
366
365
363
361
364
364
365
362
358
359
362
357
356
356
357
358
359

Friday 30

Waxing Gibbous 96%

16:06

06:32

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: 07:13, Set: 17:29, Transit: 12:22. Moon - Rise: 16:06, Set: 06:32. Civil Dark: 17:57 - 06:45. Nautical Dark: 18:28 - 06:14. Astro Dark: 19:00 - 05:43

Total Clouds (% Sky Obscured)

91
95
100
94
89
82
84
86
87
85
83
82
82
83
84
87
89
90
87
84
83
77
74
70

Low Clouds (% Sky Obscured)

5
10
10
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
5
0
0
0

Medium Clouds (% Sky Obscured)

91
95
100
94
89
82
84
86
87
85
83
82
82
83
84
87
87
89
86
80
74
70
65
61

High Clouds (% Sky Obscured)

37
40
47
44
28
15
10
1
1
20
13
1
2
3
4
1
0
0
0
0
0
0
0
55

ISS Passover

Visibility (miles)

9
9
8
0
0
0
1
4
9
9
9
9
9
9
9
9
9
9
9
9
8
8
5
9

Fog (%)

66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66

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
7
6
15
14
12
10
2
1
0
0
0
0
0
0
0
0
1
4
6
16
17
17
37

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
89
92
92
94
94
94
92
90
90
88
86
86
86
85
83
81
75
72
71
72
71
75
77

Pressure (mb)

1024
1024
1025
1025
1025
1025
1026
1026
1026
1026
1025
1025
1025
1025
1024
1025
1025
1025
1025
1024
1023
1022
1021
1020

Ozone (du)

362
364
364
367
368
367
367
366
367
367
367
364
363
362
363
366
367
369
370
370
375
379
383
385

Saturday 31

Waxing Gibbous 99%

16:06

07:13

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 OK

Sun - Rise: 07:12, Set: 17:30, Transit: 12:22. Moon - Rise: 16:06, Set: 07:13. Civil Dark: 17:58 - 06:45. Nautical Dark: 18:29 - 06:13. Astro Dark: 19:01 - 05:42

Total Clouds (% Sky Obscured)

67
69
72
65
63
56
66
80
90
93
96
100
82
63
41
36
40
15
23
45
68
45
23
0

Low Clouds (% Sky Obscured)

5
0
0
0
0
5
5
0
0
6
11
17
11
6
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

63
67
68
62
51
42
58
69
83
87
93
100
78
55
37
31
35
15
23
45
68
45
23
0

High Clouds (% Sky Obscured)

50
9
35
39
50
56
22
80
75
67
83
100
75
47
25
25
20
15
20
20
30
30
23
0

ISS Passover

Visibility (miles)

1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
4
7

Fog (%)

66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66

Precipitation Type

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

Precipitation Probability (%)

57
71
77
95
93
95
95
95
95
95
95
95
95
92
91
95
90
85
86
73
62
50
37
23

Precipitation Amount (mm)

0.2
0.4
0.3
0.8
0.4
1
1
0.7
0.4
0.6
0.4
0.3
0.4
0.4
0.4
0.6
0.5
0.4
0.5
0.3
0.3
0.2
0.1
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
87
87
88
90
90
92
92
88
87
86
85
88
86
85
86
87
85
85
83
83
82
79
76

Pressure (mb)

1019
1019
1019
1019
1018
1017
1017
1016
1014
1013
1012
1012
1012
1010
1010
1010
1010
1011
1011
1011
1010
1010
1010
1011

Ozone (du)

389
390
399
409
415
421
429
429
431
436
440
447
449
451
456
457
459
461
463
464
466
468
468
468

Sunday 1

Full Moon 100%

17:22

07:46

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

Sun - Rise: 07:11, Set: 17:31, Transit: 12:22. Moon - Rise: 17:22, Set: 07:46. Civil Dark: 17:59 - 06:44. Nautical Dark: 18:30 - 06:12. Astro Dark: 19:02 - 05:41

Total Clouds (% Sky Obscured)

30
70
96
84
72
55
41
28
12
5
1
0
0
0
0
0
0
0
2
4
7
34
60
79

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
2

Medium Clouds (% Sky Obscured)

30
70
96
70
44
20
13
6
0
0
0
0
0
0
0
0
0
0
2
4
5
12
12
13

High Clouds (% Sky Obscured)

30
35
40
40
35
35
41
28
12
5
1
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
9
9
9

Fog (%)

66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66

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 (%)

15
7
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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)

18
17
17
17
17
16
16
15
15
15
14
13
12
12
12
12
12
11
11
11
11
11
9
8

Chance of Frost

Temperature (°C)

-4
-5
-5
-6
-6
-7
-8
-8
-8
-8
-8
-8
-9
-8
-8
-8
-7
-6
-5
-3
-2
-1
-1
0

Feels Like (°C)

-14
-13
-13
-12
-14
-14
-14
-14
-15
-14
-14
-14
-14
-14
-14
-14
-13
-12
-12
-11
-10
-10
-5
-4

Dew Point (°C)

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

Relative Humidity (%)

73
75
74
74
73
74
72
72
71
71
72
74
75
74
74
72
76
77
81
79
79
80
81
83

Pressure (mb)

1011
1012
1013
1014
1015
1016
1017
1017
1018
1018
1019
1020
1020
1021
1022
1023
1023
1024
1025
1024
1024
1024
1024
1024

Ozone (du)

468
469
469
470
464
457
451
444
436
428
428
427
426
424
422
420
419
418
417
414
411
407
409
411

Monday 2

Waning Gibbous 98%

18:35

08:14

16 OK
17 OK
18 OK
19 OK
20 OK
21 OK
22 OK
23 OK
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: 07:10, Set: 17:32, Transit: 12:22. Moon - Rise: 18:35, Set: 08:14. Civil Dark: 18:00 - 06:43. Nautical Dark: 18:32 - 06:11. Astro Dark: 19:03 - 05:40

Total Clouds (% Sky Obscured)

46
37
30
28
26
25
30
35
41
58
71
73
76
76
78
75
79
83
70
62
48

Low Clouds (% Sky Obscured)

0
0
0
1
1
3
13
23
33
23
12
1
21
42
64
69
74
79
63
47
31

Medium Clouds (% Sky Obscured)

6
4
2
5
7
8
15
27
41
55
61
67
60
52
53
32
25
18
12
6
0

High Clouds (% Sky Obscured)

0
3
7
5
3
1
0
0
0
0
0
0
0
0
0
0
0
0
12
24
36

ISS Passover

Visibility (miles)

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

Fog (%)

66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66

Precipitation Type

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
0
0
0
0
0
0
0
0
0
0
1
1
1
1
0
0
0
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

Wind Speed/Direction (mph)

7
5
3
2
2
2
2
2
2
2
2
2
2
2
2
2
2
3
3
4
4

Chance of Frost

Temperature (°C)

0
-3
-5
-7
-8
-8
-9
-9
-9
-9
-9
-9
-8
-8
-8
-8
-7
-4
-2
-1
1

Feels Like (°C)

-4
-4
-2
-1
-10
-9
-8
-7
-7
-7
-12
-12
-13
-12
-13
-13
-12
-12
-11
-10
-9

Dew Point (°C)

-2
-4
-7
-8
-9
-10
-10
-10
-10
-11
-11
-10
-10
-10
-9
-10
-8
-6
-4
-3
-1

Relative Humidity (%)

84
87
89
92
92
88
88
88
87
87
87
88
88
88
90
90
87
85
84
87
89

Pressure (mb)

1024
1024
1025
1025
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1027
1027
1027
1027
1028
1027
1027

Ozone (du)

413
418
423
429
428
427
426
424
421
418
408
398
388
397
405
413
403
393
383
372
361

Forecast for Friendship Acres, Charles County, United States of America (38.44,-77.13)

Generated: 27/01/26 16:16:25. Forecast: 27/01/26 to 02/02/26. Timezone: UTC-5.00