Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 3

Waning Crescent 17%

01:43

17:59

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

Sun - Rise: 06:07, Set: 21:26, Transit: 13:45. Moon - Rise: 01:43, Set: 17:59. Civil Dark: 22:06 - 05:26. Nautical Dark: 23:01 - 04:32. Astro Dark: 00:16 - 03:19

Total Clouds (% Sky Obscured)

89
85
68
52
59
51
56
46
32
31
34
24
27
23
18
12
4
31
27
47
60
53
33
56

Low Clouds (% Sky Obscured)

72
73
53
16
20
26
33
22
16
17
16
12
21
20
15
9
0
30
25
41
54
43
6
24

Medium Clouds (% Sky Obscured)

86
80
59
48
53
43
48
39
27
28
32
22
16
13
9
6
4
6
13
18
20
38
31
52

High Clouds (% Sky Obscured)

0
2
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4

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
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
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

4
5
5
5
3
0
0
0
0
0
0
4
5
5
5
0
0
0
0
5
6
8
9
15

Precipitation Amount (mm)

0.02
0.03
0.04
0.03
0.01
0
0
0
0
0
0
0.01
0.01
0.01
0.01
0
0
0
0
0.01
0.03
0.09
0.11
0.16

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

20
19
18
17
15
14
14
13
13
13
12
12
11
12
13
14
16
18
19
20
21
22
21
21

Feels Like (°C)

20
19
18
17
15
14
14
13
13
13
12
12
11
12
13
14
16
18
19
20
21
22
21
21

Dew Point (°C)

13
13
13
12
11
11
11
11
10
10
10
11
11
11
13
14
15
15
15
15
15
15
15
15

Relative Humidity (%)

65
68
71
74
77
80
81
83
84
86
89
94
97
98
99
96
90
84
79
73
66
64
66
69

Pressure (mb)

1013
1013
1013
1014
1015
1015
1015
1015
1014
1014
1014
1014
1014
1014
1014
1015
1015
1015
1014
1014
1013
1013
1013
1013

Ozone (du)

337
335
337
338
338
338
338
338
336
337
338
339
340
341
339
340
340
341
342
344
341
342
343
343

Wednesday 4

Waning Crescent 10%

02:22

19:03

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

Sun - Rise: 06:08, Set: 21:24, Transit: 13:45. Moon - Rise: 02:22, Set: 19:03. Civil Dark: 22:04 - 05:28. Nautical Dark: 22:58 - 04:35. Astro Dark: 00:12 - 03:23

Total Clouds (% Sky Obscured)

46
37
38
33
24
25
29
36
28
8
6
7
17
20
21
9
44
85
94
98
99
99
98
97

Low Clouds (% Sky Obscured)

6
2
17
7
7
10
8
6
6
2
0
2
6
9
21
9
0
15
49
48
41
38
16
19

Medium Clouds (% Sky Obscured)

46
36
34
31
23
22
27
34
27
8
5
6
14
15
0
0
0
5
11
19
31
27
31
66

High Clouds (% Sky Obscured)

0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
44
83
87
98
98
99
98
95

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
9
10
10
10

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
1
20
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
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain
None
Very Light Rain
None
Very Light Rain

Precipitation Probability (%)

24
28
26
11
6
4
0
0
5
0
0
0
0
0
0
0
0
0
5
7
5
7
5
6

Precipitation Amount (mm)

0.21
0.19
0.29
0.08
0.02
0.01
0
0
0.01
0
0
0
0
0
0
0
0
0
0.04
0.11
0.09
0.2
0.11
0.18

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

20
19
18
17
16
15
14
14
13
13
13
12
12
12
13
15
17
19
20
20
21
22
22
22

Feels Like (°C)

20
19
18
17
16
15
14
14
13
13
13
12
12
12
13
15
17
19
20
21
21
22
22
22

Dew Point (°C)

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

Relative Humidity (%)

72
76
80
83
85
86
87
88
90
93
96
99
100
100
100
100
93
87
82
80
74
72
70
70

Pressure (mb)

1013
1012
1013
1013
1013
1014
1014
1014
1013
1013
1012
1012
1012
1012
1012
1012
1012
1011
1011
1010
1009
1009
1008
1008

Ozone (du)

342
342
337
337
337
338
338
338
342
343
344
344
343
344
345
342
340
338
337
337
338
339
340
342

Thursday 5

Waning Crescent 5%

03:12

20:00

18 Bad
19 OK
20 OK
21 OK
22 Bad
23 Bad
00 OK
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

Sun - Rise: 06:10, Set: 21:22, Transit: 13:45. Moon - Rise: 03:12, Set: 20:00. Civil Dark: 22:02 - 05:30. Nautical Dark: 22:56 - 04:37. Astro Dark: 00:08 - 03:27

Total Clouds (% Sky Obscured)

61
35
27
20
58
49
41
99
93
100
99
100
93
100
99
99
99
99
99
99
93
93
93
93

Low Clouds (% Sky Obscured)

16
23
21
6
9
6
2
2
5
2
7
5
0
2
90
90
90
90
90
90
92
92
92
92

Medium Clouds (% Sky Obscured)

55
31
18
15
16
37
37
81
57
100
95
96
67
98
61
61
61
61
61
61
30
30
30
30

High Clouds (% Sky Obscured)

25
0
0
5
49
34
8
98
84
88
92
95
82
85
95
95
95
95
95
95
1
1
1
1

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

Precipitation Probability (%)

6
17
12
4
3
4
3
4
5
10
19
21
26
35
43
27
21
19
29
26
30
28
35
36

Precipitation Amount (mm)

0.13
0.27
0.26
0.06
0.02
0.03
0.04
0.06
0.07
0.09
0.12
0.14
0.16
0.23
0.38
0.2
0.11
0.19
0.45
0.29
0.65
0.51
0.95
0.85

Wind Speed/Direction (mph)

8
8
7
6
7
8
9
10
10
10
11
11
11
11
11
12
12
12
13
13
13
14
15
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

16
16
16
15
14
14
14
14
13
14
14
14
14
15
15
16
17
18
18
18
18
18
18
17

Relative Humidity (%)

72
77
79
81
83
85
87
90
91
94
98
100
100
100
100
100
100
100
97
93
91
92
89
87

Pressure (mb)

1007
1007
1007
1007
1006
1006
1006
1005
1004
1004
1003
1003
1002
1002
1002
1002
1002
1002
1003
1003
1003
1003
1003
1003

Ozone (du)

343
342
345
346
346
347
348
348
348
349
350
351
351
351
350
351
352
352
352
351
348
348
346
344

Friday 6

Waning Crescent 2%

04:15

20:46

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

Sun - Rise: 06:12, Set: 21:20, Transit: 13:45. Moon - Rise: 04:15, Set: 20:46. Civil Dark: 22:00 - 05:32. Nautical Dark: 22:53 - 04:40. Astro Dark: 00:03 - 03:31

Total Clouds (% Sky Obscured)

93
93
9
9
9
9
9
9
20
20
20
20
20
20
32
32
32
32
32
32
45
45
45
45

Low Clouds (% Sky Obscured)

92
92
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
2
2
4
4
4
4

Medium Clouds (% Sky Obscured)

30
30
9
9
9
9
9
9
19
19
19
19
19
19
31
31
31
31
31
31
31
31
31
31

High Clouds (% Sky Obscured)

1
1
0
0
0
0
0
0
0
0
0
0
0
0
2
2
2
2
2
2
20
20
20
20

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
9
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

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

Precipitation Probability (%)

32
18
10
8
4
3
3
3
2
0
0
0
0
0
0
0
4
5
11
10
12
16
20
25

Precipitation Amount (mm)

0.59
0.23
0.1
0.06
0.01
0.01
0.01
0.01
0.01
0
0
0
0
0
0
0
0.01
0.04
0.18
0.18
0.23
0.3
0.31
0.33

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

19
19
19
17
16
15
15
14
14
14
13
13
13
13
14
15
17
19
19
20
21
21
20
19

Feels Like (°C)

19
19
19
17
16
15
15
14
14
14
13
13
13
13
14
16
17
19
20
21
21
21
21
19

Dew Point (°C)

17
16
16
15
14
14
13
13
13
13
13
13
13
13
14
15
17
17
18
18
18
17
17
17

Relative Humidity (%)

85
85
84
88
89
90
91
93
94
96
98
100
100
100
100
100
98
93
91
85
83
81
82
87

Pressure (mb)

1004
1004
1004
1004
1004
1004
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1004
1004
1004
1003
1003
1003
1003

Ozone (du)

343
342
342
347
349
348
348
347
346
346
346
346
346
347
346
347
346
345
345
347
352
352
352
352

Saturday 7

Waning Crescent 0%

05:26

21:22

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
16 Bad
17 Bad

Sun - Rise: 06:13, Set: 21:19, Transit: 13:45. Moon - Rise: 05:26, Set: 21:22. Civil Dark: 21:58 - 05:34. Nautical Dark: 22:51 - 04:42. Astro Dark: 23:59 - 03:35

Total Clouds (% Sky Obscured)

45
45
82
82
82
82
82
82
70
70
70
70
70
70
94
94
94
94
94
94
88
88
88
88

Low Clouds (% Sky Obscured)

4
4
19
19
19
19
19
19
7
7
7
7
7
7
11
11
11
11
11
11
79
79
79
79

Medium Clouds (% Sky Obscured)

31
31
18
18
18
18
18
18
21
21
21
21
21
21
78
78
78
78
78
78
6
6
6
6

High Clouds (% Sky Obscured)

20
20
77
77
77
77
77
77
64
64
64
64
64
64
79
79
79
79
79
79
53
53
53
53

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
9
7
9
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
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
Very Light Rain
Very Light Rain

Precipitation Probability (%)

28
24
26
23
21
21
17
16
18
18
21
23
22
19
6
6
6
7
8
10
14
18
21
23

Precipitation Amount (mm)

0.38
0.31
0.31
0.22
0.15
0.18
0.14
0.13
0.14
0.17
0.21
0.23
0.17
0.1
0.02
0.01
0.01
0.01
0.03
0.09
0.15
0.18
0.2
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

18
18
18
17
16
15
14
14
14
14
14
14
14
14
15
15
17
18
19
20
20
20
19
19

Feels Like (°C)

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

Dew Point (°C)

16
16
17
16
15
14
14
14
14
14
14
14
14
14
15
15
17
18
18
18
18
18
18
17

Relative Humidity (%)

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

Pressure (mb)

1004
1003
1003
1003
1004
1004
1004
1005
1004
1004
1004
1004
1005
1005
1006
1007
1007
1008
1008
1008
1008
1008
1009
1009

Ozone (du)

351
351
351
351
351
352
350
348
350
349
348
347
346
346
352
351
349
348
349
349
350
351
352
352

Sunday 8

New Moon 1%

06:44

21:50

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
16 Bad
17 Bad

Sun - Rise: 06:15, Set: 21:17, Transit: 13:45. Moon - Rise: 06:44, Set: 21:50. Civil Dark: 21:56 - 05:36. Nautical Dark: 22:48 - 04:44. Astro Dark: 23:55 - 03:38

Total Clouds (% Sky Obscured)

88
88
76
76
76
76
76
76
54
54
54
54
54
54
55
55
55
55
55
55
82
82
82
82

Low Clouds (% Sky Obscured)

79
79
19
19
19
19
19
19
23
23
23
23
23
23
36
36
36
36
36
36
73
73
73
73

Medium Clouds (% Sky Obscured)

6
6
9
9
9
9
9
9
23
23
23
23
23
23
39
39
39
39
39
39
34
34
34
34

High Clouds (% Sky Obscured)

53
53
68
68
68
68
68
68
37
37
37
37
37
37
0
0
0
0
0
0
36
36
36
36

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
9
7
7

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
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
Light Rain
Light Rain

Precipitation Probability (%)

25
24
24
20
15
12
13
17
18
17
17
16
23
34
35
29
22
21
27
37
45
49
52
55

Precipitation Amount (mm)

0.18
0.18
0.19
0.14
0.08
0.06
0.07
0.13
0.18
0.16
0.11
0.11
0.16
0.26
0.31
0.23
0.12
0.09
0.19
0.43
0.68
0.85
0.98
0.97

Wind Speed/Direction (mph)

13
13
13
12
12
12
12
12
13
13
13
13
13
13
13
14
15
16
16
16
16
15
15
14

Chance of Frost

Temperature (°C)

18
18
18
17
17
16
15
15
14
14
14
14
14
14
15
15
16
17
17
17
18
19
19
19

Feels Like (°C)

18
18
18
17
17
16
15
15
14
14
14
14
15
15
15
16
17
17
18
18
19
19
20
19

Dew Point (°C)

16
16
16
16
15
15
14
14
14
14
14
14
14
14
15
15
16
17
17
17
18
19
19
19

Relative Humidity (%)

89
90
91
91
92
93
95
98
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Pressure (mb)

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

Ozone (du)

353
353
353
353
353
352
353
353
353
351
349
348
349
352
353
352
351
350
350
350
349
347
345
342

Monday 9

Waxing Crescent 5%

08:03

22:12

18 Bad
19 Bad
20 Bad
21 OK
22 OK
23 OK
00 OK
01 OK
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

Sun - Rise: 06:16, Set: 21:15, Transit: 13:45. Moon - Rise: 08:03, Set: 22:12. Civil Dark: 21:54 - 05:37. Nautical Dark: 22:45 - 04:46. Astro Dark: 23:51 - 03:42

Total Clouds (% Sky Obscured)

82
82
25
25
25
25
25
25
97
97
97
97
97
97
55
55
55
55
55
55
93
93
93
93

Low Clouds (% Sky Obscured)

73
73
0
0
0
0
0
0
26
26
26
26
26
26
14
14
14
14
14
14
62
62
62
62

Medium Clouds (% Sky Obscured)

34
34
25
25
25
25
25
25
35
35
35
35
35
35
30
30
30
30
30
30
63
63
63
63

High Clouds (% Sky Obscured)

36
36
0
0
0
0
0
0
95
95
95
95
95
95
41
41
41
41
41
41
79
79
79
79

ISS Passover

Visibility (miles)

9
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

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

Precipitation Probability (%)

54
42
30
18
5
0
3
9
15
16
16
15
18
25
29
21
9
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.66
0.32
0.15
0.07
0.02
0
0.01
0.05
0.11
0.12
0.12
0.11
0.13
0.18
0.2
0.11
0.02
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

19
18
17
17
16
15
15
14
14
14
14
14
14
15
15
17
18
19
20
20
21
22
22
22

Dew Point (°C)

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

Relative Humidity (%)

99
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
96
90
82
76
72
71

Pressure (mb)

1016
1016
1016
1016
1017
1018
1018
1017
1017
1017
1017
1017
1017
1017
1018
1018
1019
1020
1020
1020
1020
1020
1020
1020

Ozone (du)

340
339
337
334
331
329
327
326
325
324
323
322
321
320
320
319
319
319
318
318
318
318
318
317

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

Generated: 03/08/21 18:31:43. Forecast: 03/08/21 to 09/08/21. Timezone: UTC+2.00