Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 7

Waning Crescent 17%

05:17

16:28

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

Sun - Rise: 05:55, Set: 21:15, Transit: 13:36. Moon - Rise: 05:17, Set: 16:28. Civil Dark: 21:55 - 05:14. Nautical Dark: 22:50 - 04:20. Astro Dark: 00:04 - 03:04

Total Clouds (% Sky Obscured)

76
91
81
100
92
93
67
16
5
1
0
0
0
0
54
3
71
72
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

75
91
81
100
92
93
67
13
4
1
0
0
0
0
0
0
0
0
11
9
3
4
0
0

Medium Clouds (% Sky Obscured)

3
0
1
5
16
1
0
0
1
1
0
0
0
0
0
1
0
0
16
26
52
95
97
99

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
2
1
0
0
0
0
0
54
2
71
72
100
100
100
100
100
100

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
4

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
0.02
0.06

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
7
7
10
11
11
11
11
10
8
6
5
5
4
2
2
1
0
-0
-0
0
2
4
7

Dew Point (°C)

3
3
2
2
1
1
1
1
2
2
2
1
1
1
1
1
1
1
1
1
1
1
2
4

Relative Humidity (%)

69
64
61
56
53
51
52
52
56
60
66
71
74
78
81
84
86
86
86
85
81
75
72
70

Pressure (mb)

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

Ozone (du)

415
413
414
422
417
415
409
406
405
404
403
395
390
388
380
378
371
367
364
360
356
345
336
333

Saturday 8

Waning Crescent 10%

05:30

17:38

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

Sun - Rise: 05:53, Set: 21:17, Transit: 13:36. Moon - Rise: 05:30, Set: 17:38. Civil Dark: 21:57 - 05:12. Nautical Dark: 22:52 - 04:17. Astro Dark: 00:08 - 02:59

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
98
98
97
100
95
89
61
40
65
10
62
80
40
94
90
98

Low Clouds (% Sky Obscured)

0
0
1
93
100
100
17
100
68
16
8
34
4
31
2
2
2
6
34
9
4
0
0
0

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
95
70
90
96
100
83
18
2
0
0
1
7
1
0
0
17
47

High Clouds (% Sky Obscured)

100
100
100
100
100
100
95
87
91
85
17
0
70
84
59
38
64
5
42
77
38
94
88
97

ISS Passover

Visibility (miles)

10
10
10
7
4
5
7
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
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

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

Precipitation Probability (%)

8
10
11
25
54
71
70
60
47
33
10
5
5
5
4
1
1
0
0
0
0
0
6
16

Precipitation Amount (mm)

0.1
0.11
0.12
0.28
0.53
0.9
0.74
0.48
0.33
0.31
0.14
0.09
0.06
0.04
0.02
0.02
0.01
0
0
0
0
0
0.09
0.54

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

11
12
13
12
11
11
11
12
13
14
14
14
14
14
13
13
12
12
12
12
12
14
15
17

Feels Like (°C)

11
12
13
12
11
11
11
12
13
14
14
14
14
14
13
13
12
12
12
12
12
14
15
17

Dew Point (°C)

5
6
6
6
7
8
8
9
10
10
11
10
11
11
11
11
11
11
10
10
11
12
13
14

Relative Humidity (%)

67
64
63
67
72
79
83
82
78
77
78
79
82
84
85
87
89
91
92
91
89
89
87
85

Pressure (mb)

1013
1013
1012
1010
1009
1009
1008
1007
1006
1006
1005
1005
1005
1004
1004
1004
1004
1004
1003
1003
1002
1002
1002
1002

Ozone (du)

333
331
330
329
328
325
326
327
326
326
326
326
325
324
324
322
322
322
322
321
320
323
323
323

Sunday 9

Waning Crescent 5%

05:44

18:47

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

Sun - Rise: 05:52, Set: 21:18, Transit: 13:36. Moon - Rise: 05:44, Set: 18:47. Civil Dark: 21:59 - 05:10. Nautical Dark: 22:54 - 04:15. Astro Dark: 00:13 - 02:54

Total Clouds (% Sky Obscured)

99
98
91
87
96
96
15
41
99
99
98
100
100
99
99
98
98
98
98
98
98
70
70
70

Low Clouds (% Sky Obscured)

0
2
0
1
50
87
10
31
23
3
7
0
2
0
0
2
2
2
2
2
2
4
4
4

Medium Clouds (% Sky Obscured)

51
38
38
41
38
38
3
36
55
52
39
63
97
91
95
77
77
77
77
77
77
41
41
41

High Clouds (% Sky Obscured)

98
96
88
81
91
47
5
2
99
98
97
100
99
98
98
98
98
98
98
98
98
56
56
56

ISS Passover

Visibility (miles)

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

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

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

Precipitation Probability (%)

6
5
4
3
3
4
3
2
4
11
24
41
43
33
45
28
23
40
30
31
39
39
30
7

Precipitation Amount (mm)

0.11
0.07
0.11
0.1
0.05
0.07
0.09
0.09
0.09
0.18
0.34
0.78
0.49
0.28
0.93
0.27
0.19
0.45
0.2
0.2
0.22
0.26
0.36
0.06

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

19
20
20
22
23
24
24
25
25
23
21
19
17
17
16
15
14
13
13
13
13
14
14
16

Feels Like (°C)

19
20
20
22
23
24
24
25
25
23
21
19
17
17
16
15
14
13
13
13
13
14
15
16

Dew Point (°C)

15
16
15
16
15
16
16
16
17
16
15
15
15
15
15
14
14
13
13
13
13
14
14
14

Relative Humidity (%)

82
77
73
68
64
61
58
57
60
64
71
78
86
90
91
95
100
100
100
100
100
100
98
88

Pressure (mb)

1001
1001
1001
1001
1001
1000
1000
1000
999
999
999
999
1000
999
1000
1000
1000
1000
999
999
1000
1000
1001
1002

Ozone (du)

323
324
326
329
329
330
330
330
329
329
329
330
330
332
333
335
336
339
341
342
342
345
352
355

Monday 10

Waning Crescent 2%

05:59

19:56

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

Sun - Rise: 05:50, Set: 21:20, Transit: 13:36. Moon - Rise: 05:59, Set: 19:56. Civil Dark: 22:01 - 05:09. Nautical Dark: 22:57 - 04:12. Astro Dark: 00:17 - 02:49

Total Clouds (% Sky Obscured)

70
70
70
100
100
100
100
100
100
28
28
28
28
28
28
49
49
49
49
49
49
42
42
42

Low Clouds (% Sky Obscured)

4
4
4
15
15
15
15
15
15
13
13
13
13
13
13
2
2
2
2
2
2
6
6
6

Medium Clouds (% Sky Obscured)

41
41
41
88
88
88
88
88
88
26
26
26
26
26
26
8
8
8
8
8
8
2
2
2

High Clouds (% Sky Obscured)

56
56
56
100
100
100
100
100
100
0
0
0
0
0
0
45
45
45
45
45
45
38
38
38

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

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

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

Precipitation Probability (%)

12
10
17
23
20
15
10
8
9
11
7
5
0
0
0
2
2
2
2
0
0
0
0
6

Precipitation Amount (mm)

0.19
0.13
0.16
0.2
0.14
0.1
0.07
0.05
0.04
0.04
0.02
0.01
0
0
0
0.01
0.01
0.01
0.01
0
0
0
0
0.01

Wind Speed/Direction (mph)

11
12
13
12
13
14
14
11
8
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5

Chance of Frost

Temperature (°C)

18
18
17
15
15
14
14
14
14
14
13
13
12
12
11
11
10
10
9
9
10
11
13
15

Feels Like (°C)

18
18
17
15
15
14
14
14
14
14
13
13
12
12
11
11
10
9
8
8
9
11
13
15

Dew Point (°C)

14
13
13
13
13
12
11
11
12
12
11
11
11
11
10
10
10
10
9
9
10
11
12
13

Relative Humidity (%)

78
74
78
90
88
84
82
82
84
86
87
88
90
94
96
96
98
100
100
100
100
97
93
87

Pressure (mb)

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

Ozone (du)

357
358
357
355
354
354
352
352
351
351
352
354
359
361
362
361
363
364
364
362
361
361
361
360

Tuesday 11

New Moon 0%

06:17

21:06

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

Sun - Rise: 05:48, Set: 21:21, Transit: 13:36. Moon - Rise: 06:17, Set: 21:06. Civil Dark: 22:03 - 05:07. Nautical Dark: 22:59 - 04:10. Astro Dark: 00:22 - 02:44

Total Clouds (% Sky Obscured)

42
42
42
94
94
94
94
94
94
100
100
100
100
100
100
100
100
100
100
100
100
99
99
99

Low Clouds (% Sky Obscured)

6
6
6
17
17
17
17
17
17
2
2
2
2
2
2
9
9
9
9
9
9
12
12
12

Medium Clouds (% Sky Obscured)

2
2
2
45
45
45
45
45
45
100
100
100
100
100
100
100
100
100
100
100
100
99
99
99

High Clouds (% Sky Obscured)

38
38
38
91
91
91
91
91
91
100
100
100
100
100
100
100
100
100
100
100
100
84
84
84

ISS Passover

Visibility (miles)

10
9
8
8
10
10
10
10
10
8
8
9
10
10
10
10
10
10
10
10
10
10
10
10

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

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

Precipitation Probability (%)

10
15
16
24
30
32
43
46
45
31
43
57
60
52
32
24
23
28
29
22
11
8
7
5

Precipitation Amount (mm)

0.04
0.13
0.14
0.23
0.2
0.23
0.34
0.3
0.25
0.07
0.17
0.42
0.61
0.46
0.22
0.11
0.11
0.14
0.16
0.12
0.08
0.05
0.03
0.01

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

16
18
18
18
17
16
14
14
14
15
14
14
13
12
12
11
11
10
10
9
10
11
12
13

Dew Point (°C)

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

Relative Humidity (%)

80
75
73
72
76
80
87
89
91
91
91
94
97
100
100
100
100
100
100
100
100
97
90
83

Pressure (mb)

1010
1010
1009
1009
1009
1009
1009
1009
1009
1010
1010
1010
1010
1010
1010
1011
1011
1011
1011
1012
1012
1012
1012
1012

Ozone (du)

360
361
362
361
360
359
359
359
360
362
364
367
370
372
375
377
379
380
381
381
380
379
378
377

Wednesday 12

Waxing Crescent 1%

06:39

22:16

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

Sun - Rise: 05:47, Set: 21:23, Transit: 13:36. Moon - Rise: 06:39, Set: 22:16. Civil Dark: 22:05 - 05:05. Nautical Dark: 23:02 - 04:07. Astro Dark: 00:27 - 02:38

Total Clouds (% Sky Obscured)

99
99
99
92
92
92
92
92
92
47
47
47
47
47
47
16
16
16
16
16
16
93
93
93

Low Clouds (% Sky Obscured)

12
12
12
91
91
91
91
91
91
26
26
26
26
26
26
0
0
0
0
0
0
58
58
58

Medium Clouds (% Sky Obscured)

99
99
99
19
19
19
19
19
19
34
34
34
34
34
34
9
9
9
9
9
9
92
92
92

High Clouds (% Sky Obscured)

84
84
84
12
12
12
12
12
12
19
19
19
19
19
19
9
9
9
9
9
9
0
0
0

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

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
3
3
3
3
2
2
2
2
2
2
3
5
4
3
2
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.01
0.01
0.02
0.03
0.03
0.03
0.02
0.02
0.02
0.02
0.03
0.06
0.09
0.06
0.02
0.01
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

14
15
16
17
18
18
18
17
17
16
15
14
13
12
11
11
10
10
9
10
10
12
13
15

Feels Like (°C)

14
15
16
17
18
18
18
17
17
16
15
14
13
12
11
11
10
8
8
8
10
12
13
15

Dew Point (°C)

10
10
10
9
9
9
9
9
9
10
10
10
10
10
11
11
10
10
9
10
10
11
11
11

Relative Humidity (%)

77
71
66
60
56
54
55
57
62
66
70
76
82
90
96
100
100
100
100
100
99
94
85
78

Pressure (mb)

1013
1013
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1011
1011
1011
1011
1011

Ozone (du)

376
377
378
380
383
386
388
389
388
386
385
384
382
379
375
372
371
372
372
371
371
371
371
372

Thursday 13

Waxing Crescent 3%

07:09

23:24

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

Sun - Rise: 05:45, Set: 21:25, Transit: 13:36. Moon - Rise: 07:09, Set: 23:24. Civil Dark: 22:07 - 05:03. Nautical Dark: 23:04 - 04:05. Astro Dark: 00:33 - 02:33

Total Clouds (% Sky Obscured)

93
93
93
94
94
94
94
94
94
59
59
59
59
59
59
7
7
7
7
7
7
100
100
100

Low Clouds (% Sky Obscured)

58
58
58
49
49
49
49
49
49
29
29
29
29
29
29
2
2
2
2
2
2
100
100
100

Medium Clouds (% Sky Obscured)

92
92
92
20
20
20
20
20
20
48
48
48
48
48
48
7
7
7
7
7
7
2
2
2

High Clouds (% Sky Obscured)

0
0
0
88
88
88
88
88
88
19
19
19
19
19
19
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

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

Precipitation Probability (%)

3
4
6
9
21
31
34
27
11
4
2
0
3
2
1
1
1
1
2
2
2
3
2
2

Precipitation Amount (mm)

0.01
0.02
0.06
0.12
0.29
0.64
0.83
0.48
0.1
0.01
0.01
0
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

17
18
18
18
17
16
15
14
14
14
14
13
13
12
11
10
9
9
8
8
9
10
11
12

Feels Like (°C)

17
18
18
18
17
16
15
14
14
14
14
13
13
12
11
10
8
7
6
7
7
8
11
12

Dew Point (°C)

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

Relative Humidity (%)

72
67
64
65
70
77
84
84
82
82
84
87
90
93
94
94
96
98
100
100
99
96
90
83

Pressure (mb)

1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1011
1011
1012
1012
1012
1012
1012
1012
1012
1012
1013
1013
1013
1013

Ozone (du)

372
371
370
369
368
367
367
367
367
366
366
365
364
363
363
362
362
361
361
361
361
360
360
360

Forecast for Utrecht, Utrecht, NL (52.08,5.03)

Generated: 07/05/21 11:19:47. Forecast: 07/05/21 to 13/05/21. Timezone: UTC+2.00