Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 22

Waxing Crescent 45%

13:03

01:50

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

Sun - Rise: 05:50, Set: 20:19, Transit: 13:05. Moon - Rise: 13:03, Set: 01:50. Civil Dark: 20:49 - 05:19. Nautical Dark: 21:27 - 04:42. Astro Dark: 22:09 - 03:59

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

100
100
100
100
100
88
93
100
100
100
100
100
100
100
100
100
100
94
96
100
88
100
100
100

Medium Clouds (% Sky Obscured)

69
89
92
90
81
100
100
99
100
99
97
99
100
100
100
93
77
44
70
76
97
99
100
88

High Clouds (% Sky Obscured)

61
74
100
94
100
100
88
89
100
100
100
85
100
98
96
80
73
100
95
96
93
95
98
94

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
4
5
9
9
9
9
8
7
7
7
6
8
6
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

None
None
None
None
Very Light Rain
Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
Light Rain
Light Rain
Light Rain
Light Rain
Moderate Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

94
93
35
52
84
95
81
74
85
71
43
35
24
31
46
49
89
95
95
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0.3
0.6
0.3
0.2
0.4
0.4
0
0
0
0
0
0
0.5
1.2
1.3
1.8
2.9
0.8
1.7
0.5

Wind Speed/Direction (mph)

6
6
7
8
8
7
7
7
7
6
6
6
6
6
6
7
7
7
7
6
7
6
8
7

Chance of Frost

Temperature (°C)

15
15
14
15
15
15
14
14
13
13
12
12
12
12
12
12
12
12
13
13
13
13
14
14

Feels Like (°C)

14
14
14
14
13
13
12
12
11
11
11
11
11
11
11
11
11
11
11
12
12
12
13
13

Dew Point (°C)

12
12
11
11
10
10
10
11
11
12
12
12
12
12
12
12
12
12
12
13
13
13
14
14

Relative Humidity (%)

83
83
82
77
70
73
78
83
89
96
96
98
96
98
98
96
100
100
98
98
98
96
98
98

Pressure (mb)

1026
1025
1025
1025
1025
1025
1025
1026
1026
1026
1026
1026
1026
1026
1026
1026
1025
1025
1026
1026
1026
1026
1026
1026

Ozone (du)

318
318
318
317
317
316
315
315
315
317
317
317
317
319
319
319
319
319
319
320
319
319
319
318

Saturday 23

First Quarter 56%

13:03

02:15

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

Sun - Rise: 05:49, Set: 20:20, Transit: 13:05. Moon - Rise: 13:03, Set: 02:15. Civil Dark: 20:50 - 05:19. Nautical Dark: 21:28 - 04:41. Astro Dark: 22:10 - 03:58

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
97

Low Clouds (% Sky Obscured)

100
100
100
87
85
94
100
100
98
97
100
100
100
100
100
100
100
100
100
100
100
99
97
94

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
93
88
74
89
88
54
71
48
45
46
59
46
37
25
32
21

High Clouds (% Sky Obscured)

100
100
94
94
75
87
93
100
100
100
100
100
100
100
99
64
62
60
97
100
87
100
36
20

ISS Passover

Visibility (miles)

2
3
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
59
73
23
68
12
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

95
95
95
95
95
90
73
68
95
95
95
95
95
91
95
71
71
29
32
14
6
2
12
2

Precipitation Amount (mm)

0.6
1.7
2
1
1.2
0.5
0.4
0.2
1
0.6
0.9
0.4
0.8
0.3
0.8
0
0.5
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

14
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
14
14
15
15
16
16
18
19

Feels Like (°C)

13
14
14
14
14
14
14
14
15
15
14
15
15
15
15
15
15
15
15
16
17
17
19
20

Dew Point (°C)

14
14
14
14
15
15
15
15
15
15
15
14
15
15
15
14
14
14
15
15
15
16
16
16

Relative Humidity (%)

98
98
98
98
98
98
98
100
98
98
100
98
100
100
100
98
100
100
100
98
96
95
89
81

Pressure (mb)

1025
1025
1025
1024
1024
1024
1023
1023
1024
1024
1024
1023
1023
1023
1022
1022
1022
1022
1023
1023
1023
1023
1023
1023

Ozone (du)

318
317
317
318
318
320
321
321
322
326
329
332
334
337
336
337
337
339
340
338
336
335
334
332

Sunday 24

Waxing Gibbous 66%

14:07

02:38

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

Sun - Rise: 05:49, Set: 20:21, Transit: 13:05. Moon - Rise: 14:07, Set: 02:38. Civil Dark: 20:51 - 05:18. Nautical Dark: 21:29 - 04:40. Astro Dark: 22:11 - 03:57

Total Clouds (% Sky Obscured)

95
94
95
95
99
100
100
99
59
100
77
100
100
100
100
99
99
99
100
98
95
93
95
98

Low Clouds (% Sky Obscured)

90
88
89
80
92
86
84
46
9
33
49
65
58
63
73
70
73
81
83
85
84
85
87
90

Medium Clouds (% Sky Obscured)

37
28
30
27
18
0
0
0
0
0
6
28
20
18
89
64
96
75
81
79
76
73
82
78

High Clouds (% Sky Obscured)

33
64
51
69
95
100
100
92
57
100
52
100
100
100
100
94
95
90
100
74
48
27
38
36

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
5
9
2
2
3
0
0
0
1
2
1
3
4
9
9

Fog (%)

0
0
0
0
0
0
0
5
0
0
54
57
56
54
54
54
54
54
54
54
54
54
54
54

Precipitation Type

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

Precipitation Probability (%)

1
0
0
1
4
6
2
0
17
9
36
67
79
95
95
66
56
42
43
31
21
8
18
22

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.4
0.6
1
1
0.4
0.3
0
0.2
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

20
22
23
23
23
22
21
21
19
19
18
18
18
18
19
19
19
19
19
20
20
21
21
22

Feels Like (°C)

22
24
25
24
24
24
22
22
20
20
20
20
20
20
20
21
20
20
21
22
22
23
24
25

Dew Point (°C)

16
16
16
17
18
19
19
18
18
18
17
18
18
18
19
19
19
19
19
19
20
20
21
21

Relative Humidity (%)

75
68
64
67
72
80
84
86
91
92
93
96
98
100
100
100
98
98
100
98
98
96
96
92

Pressure (mb)

1023
1022
1021
1021
1021
1021
1020
1021
1021
1021
1021
1021
1021
1020
1020
1020
1020
1020
1020
1020
1021
1020
1021
1020

Ozone (du)

333
333
332
329
329
328
327
328
328
328
328
328
326
325
325
324
324
322
323
323
324
323
322
323

Monday 25

Waxing Gibbous 76%

15:10

03:00

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

Sun - Rise: 05:48, Set: 20:22, Transit: 13:05. Moon - Rise: 15:10, Set: 03:00. Civil Dark: 20:52 - 05:17. Nautical Dark: 21:30 - 04:39. Astro Dark: 22:13 - 03:57

Total Clouds (% Sky Obscured)

100
99
99
98
99
99
100
100
100
100
100
99
100
100
100
100
100
100
100
100
99
99
99
99

Low Clouds (% Sky Obscured)

91
86
80
74
72
71
69
71
72
74
78
82
86
77
68
59
66
75
81
81
82
83
82
79

Medium Clouds (% Sky Obscured)

93
98
96
94
96
98
100
100
100
100
100
89
100
97
91
90
90
95
97
95
94
92
92
92

High Clouds (% Sky Obscured)

47
36
36
27
36
54
72
79
87
94
96
86
100
99
100
100
100
100
99
89
82
60
58
49

ISS Passover

Visibility (miles)

9
7
3
2
7
7
9
9
9
9
9
9
8
1
0
0
0
1
1
1
0
0
0
0

Fog (%)

54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54

Precipitation Type

None
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Moderate Rain
Moderate Rain
Moderate Rain
Moderate Rain
Moderate Rain
Moderate Rain
None
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

31
65
92
95
87
85
84
95
95
95
95
95
95
95
95
95
87
85
79
95
95
95
95
95

Precipitation Amount (mm)

0
0.3
0.7
0.6
0.5
0.5
0.4
0.7
0.8
0.9
3.4
6.2
9.9
5.9
5.4
4.9
0
0.2
0.3
0.9
2.4
2
1.2
1

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

24
24
23
22
21
20
20
20
20
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19

Feels Like (°C)

27
28
27
24
23
22
22
22
21
21
21
21
20
21
20
20
21
21
20
20
20
20
20
21

Dew Point (°C)

20
20
22
21
21
20
20
20
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19

Relative Humidity (%)

79
78
91
96
98
98
98
98
98
98
100
100
100
100
98
100
100
100
100
100
100
100
98
100

Pressure (mb)

1020
1020
1020
1019
1019
1019
1019
1019
1019
1020
1019
1019
1019
1018
1018
1018
1018
1018
1019
1019
1019
1019
1019
1019

Ozone (du)

321
321
320
320
320
320
319
319
319
319
319
319
318
317
318
319
320
320
319
321
321
323
323
324

Tuesday 26

Waxing Gibbous 84%

16:12

03:23

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

Sun - Rise: 05:48, Set: 20:22, Transit: 13:05. Moon - Rise: 16:12, Set: 03:23. Civil Dark: 20:53 - 05:17. Nautical Dark: 21:31 - 04:38. Astro Dark: 22:14 - 03:56

Total Clouds (% Sky Obscured)

99
99
99
99
100
100
100
100
100
100
100
99
99
99
99
99
99
98
98
98
99
100
99
99

Low Clouds (% Sky Obscured)

78
80
82
85
77
69
61
60
59
59
61
64
67
70
71
73
76
80
83
74
65
56
56
56

Medium Clouds (% Sky Obscured)

91
93
94
95
95
94
93
95
97
100
98
95
88
84
72
65
70
71
71
79
87
95
91
87

High Clouds (% Sky Obscured)

50
64
79
93
96
98
100
100
78
96
93
89
64
49
60
63
64
62
58
51
52
57
71
85

ISS Passover

Visibility (miles)

1
6
9
9
5
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54

Precipitation Type

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

Precipitation Probability (%)

81
61
48
48
35
15
7
17
28
39
42
43
42
36
46
55
52
46
37
31
30
28
43
51

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

19
20
20
20
20
20
20
19
19
18
18
18
18
18
18
18
17
18
19
19
22
24
26
26

Feels Like (°C)

21
21
22
22
22
22
22
21
20
20
20
20
20
20
20
20
19
19
19
19
22
22
23
24

Dew Point (°C)

19
20
20
20
20
20
19
19
19
18
18
18
18
18
18
17
17
18
18
19
18
18
17
17

Relative Humidity (%)

98
100
98
98
98
98
98
98
98
100
100
98
100
100
100
98
98
98
95
95
80
69
58
58

Pressure (mb)

1019
1019
1018
1018
1017
1017
1017
1016
1017
1017
1017
1016
1016
1016
1016
1016
1015
1015
1015
1015
1015
1015
1014
1014

Ozone (du)

322
320
320
321
323
325
325
325
325
325
326
329
329
330
330
330
330
330
330
330
332
333
335
335

Wednesday 27

Waxing Gibbous 90%

17:13

03:48

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

Sun - Rise: 05:47, Set: 20:23, Transit: 13:05. Moon - Rise: 17:13, Set: 03:48. Civil Dark: 20:54 - 05:16. Nautical Dark: 21:32 - 04:38. Astro Dark: 22:15 - 03:55

Total Clouds (% Sky Obscured)

99
99
99
99
98
97
95
97
100
96
96
96
89
92
89
87
78
69
62
72
84
95
94
90

Low Clouds (% Sky Obscured)

54
51
49
47
41
36
30
29
29
28
29
30
31
21
10
0
7
14
21
27
27
30
18
17

Medium Clouds (% Sky Obscured)

83
74
61
61
64
67
79
82
76
52
41
24
20
10
5
5
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

99
99
99
98
94
89
86
83
71
96
96
96
89
89
79
70
70
63
56
54
55
30
5
5

ISS Passover

Visibility (miles)

9
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54

Precipitation Type

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

Precipitation Probability (%)

56
63
65
67
58
53
51
44
35
22
24
21
7
9
8
4
3
2
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0.2
0.2
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
11
11
11
11
10
8
7
6
6
5
5
5
5
5
5
6
5
5
5
6
6
6
6

Chance of Frost

Temperature (°C)

26
26
26
25
25
24
23
22
20
19
17
16
15
14
13
13
13
15
16
17
19
20
22
22

Feels Like (°C)

24
25
27
26
25
26
26
27
20
20
21
20
19
18
14
13
14
14
14
13
17
17
17
18

Dew Point (°C)

17
17
16
15
14
15
15
16
16
16
16
15
13
11
11
10
11
11
11
11
9
8
6
7

Relative Humidity (%)

58
57
54
52
50
56
62
69
75
82
90
89
85
83
84
84
86
78
72
65
53
45
36
36

Pressure (mb)

1014
1013
1013
1013
1013
1013
1013
1013
1014
1014
1015
1015
1015
1015
1015
1016
1016
1016
1017
1018
1018
1018
1018
1018

Ozone (du)

335
335
339
343
346
345
344
343
343
343
343
343
342
342
343
344
344
345
346
347
347
347
347
348

Thursday 28

Waxing Gibbous 95%

18:15

04:16

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

Sun - Rise: 05:47, Set: 20:24, Transit: 13:05. Moon - Rise: 18:15, Set: 04:16. Civil Dark: 20:55 - 05:16. Nautical Dark: 21:33 - 04:37. Astro Dark: 22:16 - 03:54

Total Clouds (% Sky Obscured)

88
87
86
81
80
70
60
40
38
35
27
19
20
16
12
0
0
0
0

Low Clouds (% Sky Obscured)

13
13
8
3
3
3
3
2
1
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

5
0
5
5
9
21
19
13
14
10
9
4
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

Fog (%)

54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54

Precipitation Type

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

Precipitation Amount (mm)

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

Chance of Frost

Temperature (°C)

23
23
24
24
24
22
21
19
18
17
16
15
15
14
14
13
13
14
16

Feels Like (°C)

19
19
22
23
23
23
24
24
17
18
18
17
16
16
13
13
14
14
14

Dew Point (°C)

7
7
7
8
8
9
10
11
11
10
9
10
11
13
12
11
10
10
11

Relative Humidity (%)

35
35
34
34
34
42
50
62
62
62
62
70
80
92
89
84
83
76
70

Pressure (mb)

1017
1017
1016
1016
1015
1015
1015
1015
1016
1016
1016
1016
1016
1017
1016
1016
1016
1016
1016

Ozone (du)

348
348
350
352
354
356
358
359
360
361
362
364
366
369
367
365
363
364
366

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

Generated: 22/05/26 13:00:09. Forecast: 22/05/26 to 28/05/26. Timezone: UTC-4.00