Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 1

Waning Crescent 34%

00:12

16:12

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

Sun - Rise: 05:24, Set: 20:50, Transit: 13:06. Moon - Rise: 00:12, Set: 16:12. Civil Dark: 21:31 - 04:43. Nautical Dark: 22:27 - 03:47. Astro Dark: 23:48 - 02:29

Total Clouds (% Sky Obscured)

46
42
59
54
34
36
41
48
45
65
53
20
23
34
47
56
48
59
81
91
100
100
100
100

Low Clouds (% Sky Obscured)

32
33
52
48
16
24
20
25
21
49
2
12
20
31
24
4
7
53
48
10
15
63
2
1

Medium Clouds (% Sky Obscured)

41
38
41
43
30
27
37
41
41
62
53
18
13
22
45
55
46
48
77
57
43
52
52
47

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
81
99
99
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 (%)

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

Precipitation Amount (mm)

0.01
0.01
0.03
0.03
0.01
0
0
0
0.01
0.01
0.01
0
0
0
0
0
0
0
0
0.01
0.03
0.05
0.08
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
78
80
81
81
83
84
86
88
90
93
94
92
87
82
77
72
62
59
58
59
60
62
63

Pressure (mb)

1013
1013
1014
1014
1014
1015
1015
1015
1015
1015
1015
1015
1016
1016
1016
1016
1016
1015
1015
1015
1014
1014
1014
1014

Ozone (du)

347
347
347
346
345
347
347
345
344
344
344
346
345
344
343
345
345
344
344
344
343
343
344
346

Monday 2

Waning Crescent 25%

00:34

17:21

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

Sun - Rise: 05:25, Set: 20:48, Transit: 13:06. Moon - Rise: 00:34, Set: 17:21. Civil Dark: 21:29 - 04:44. Nautical Dark: 22:25 - 03:50. Astro Dark: 23:43 - 02:33

Total Clouds (% Sky Obscured)

100
97
95
50
27
40
26
24
13
14
28
35
29
34
36
31
76
93
91
98
98
96
73
78

Low Clouds (% Sky Obscured)

17
25
23
1
1
5
2
4
4
7
19
24
18
7
10
25
13
23
23
33
34
45
18
23

Medium Clouds (% Sky Obscured)

52
74
83
45
27
38
24
23
12
13
24
31
26
33
34
13
36
63
48
41
40
50
59
69

High Clouds (% Sky Obscured)

99
93
91
12
2
0
2
0
0
0
0
0
0
0
0
0
61
79
83
95
95
91
31
25

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

Precipitation Probability (%)

3
5
6
5
5
4
0
0
0
0
0
0
0
0
0
3
2
2
2
2
2
2
3
6

Precipitation Amount (mm)

0.01
0.03
0.05
0.03
0.01
0.01
0
0
0
0
0
0
0
0
0
0.04
0.02
0.02
0.03
0.04
0.03
0.03
0.03
0.05

Wind Speed/Direction (mph)

6
7
6
6
6
5
4
4
4
3
3
3
3
5
6
6
7
8
8
7
6
7
8
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

67
72
75
78
81
86
88
90
91
94
97
98
93
86
79
71
65
60
61
62
63
64
66
71

Pressure (mb)

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

Ozone (du)

348
349
350
349
348
347
346
343
341
339
339
338
336
334
333
332
331
330
329
329
329
328
328
330

Tuesday 3

Waning Crescent 17%

01:03

18:25

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

Sun - Rise: 05:27, Set: 20:47, Transit: 13:06. Moon - Rise: 01:03, Set: 18:25. Civil Dark: 21:27 - 04:46. Nautical Dark: 22:22 - 03:52. Astro Dark: 23:38 - 02:38

Total Clouds (% Sky Obscured)

81
95
96
91
84
96
95
84
75
54
18
14
14
14
14
14
14
59
59
59
59
59
59
40

Low Clouds (% Sky Obscured)

20
19
15
8
6
8
7
4
2
2
0
0
0
0
0
0
0
34
34
34
34
34
34
14

Medium Clouds (% Sky Obscured)

63
68
68
53
31
28
26
9
8
8
7
8
8
8
8
8
8
54
54
54
54
54
54
39

High Clouds (% Sky Obscured)

54
91
90
83
77
95
94
81
73
49
12
7
7
7
7
7
7
1
1
1
1
1
1
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

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

Precipitation Probability (%)

9
14
8
7
6
5
5
0
0
0
0
14
12
10
7
6
5
3
3
0
2
2
2
2

Precipitation Amount (mm)

0.08
0.15
0.07
0.07
0.03
0.01
0.01
0
0
0
0
0.12
0.13
0.11
0.08
0.06
0.04
0.01
0.03
0
0.01
0.01
0.01
0.01

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

18
16
15
15
15
15
14
13
13
12
12
12
14
15
17
18
19
20
22
22
23
22
22
21

Feels Like (°C)

18
16
15
15
15
15
14
13
13
12
12
12
14
15
17
18
19
20
22
22
23
22
22
21

Dew Point (°C)

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

Relative Humidity (%)

75
78
80
82
84
86
88
89
92
94
98
100
100
96
91
86
81
65
60
57
55
56
59
63

Pressure (mb)

1013
1013
1013
1014
1014
1013
1013
1013
1013
1013
1013
1012
1012
1012
1012
1013
1012
1013
1013
1012
1012
1012
1012
1012

Ozone (du)

331
331
332
332
333
336
336
336
336
337
337
338
338
339
340
341
342
341
343
343
342
340
339
333

Wednesday 4

Waning Crescent 10%

01:42

19:21

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

Sun - Rise: 05:28, Set: 20:45, Transit: 13:06. Moon - Rise: 01:42, Set: 19:21. Civil Dark: 21:25 - 04:48. Nautical Dark: 22:19 - 03:54. Astro Dark: 23:34 - 02:42

Total Clouds (% Sky Obscured)

40
40
40
40
40
98
98
98
98
98
98
100
100
100
100
100
100
97
97
97
97
97
97
83

Low Clouds (% Sky Obscured)

14
14
14
14
14
2
2
2
2
2
2
2
2
2
2
2
2
53
53
53
53
53
53
16

Medium Clouds (% Sky Obscured)

39
39
39
39
39
43
43
43
43
43
43
80
80
80
80
80
80
96
96
96
96
96
96
81

High Clouds (% Sky Obscured)

0
0
0
0
0
96
96
96
96
96
96
100
100
100
100
100
100
1
1
1
1
1
1
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
Very Light Rain
None
None
None
None
None
None
None
None
None
Very Light Rain
None
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

2
3
4
3
3
6
4
0
0
0
0
0
0
0
0
6
4
7
6
6
8
8
11
10

Precipitation Amount (mm)

0.01
0.03
0.05
0.05
0.03
0.02
0.01
0
0
0
0
0
0
0
0
0.01
0.02
0.08
0.07
0.11
0.08
0.07
0.13
0.09

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

71
78
82
85
88
92
95
96
98
100
100
100
100
100
98
92
87
86
84
73
75
78
80
81

Pressure (mb)

1012
1012
1012
1012
1011
1011
1010
1010
1009
1009
1009
1008
1008
1007
1007
1006
1005
1004
1003
1002
1002
1002
1001
1001

Ozone (du)

333
332
332
331
331
332
333
336
339
339
339
341
343
344
346
346
347
350
350
352
353
353
350
353

Thursday 5

Waning Crescent 5%

02:33

No Set

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

Sun - Rise: 05:30, Set: 20:43, Transit: 13:06. Moon - Rise: 02:33, Set: No Set. Civil Dark: 21:23 - 04:50. Nautical Dark: 22:17 - 03:57. Astro Dark: 23:29 - 02:46

Total Clouds (% Sky Obscured)

83
83
83
83
83
57
57
57
57
57
57
11
11
11
11
11
11
69
69
69
69
69
69
52

Low Clouds (% Sky Obscured)

16
16
16
16
16
0
0
0
0
0
0
9
9
9
9
9
9
66
66
66
66
66
66
3

Medium Clouds (% Sky Obscured)

81
81
81
81
81
57
57
57
57
57
57
6
6
6
6
6
6
48
48
48
48
48
48
31

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
2
2
2
2
2
31

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
8
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

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

Precipitation Probability (%)

11
14
14
10
8
11
9
9
11
10
10
10
7
6
4
3
3
4
7
15
31
37
42
44

Precipitation Amount (mm)

0.07
0.11
0.08
0.05
0.04
0.04
0.03
0.04
0.05
0.05
0.04
0.04
0.03
0.02
0.02
0.03
0.07
0.14
0.25
0.4
0.56
0.69
0.82
0.85

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
85
87
89
91
93
96
99
100
100
100
100
100
100
98
93
88
85
87
91
96
98
98
98

Pressure (mb)

1001
1001
1001
1001
1001
1001
1001
1001
1000
1000
1001
1000
1000
1001
1001
1001
1000
1000
999
999
999
999
999
998

Ozone (du)

354
353
352
352
351
351
351
351
351
351
351
354
355
356
357
355
353
351
351
352
353
354
355
356

Friday 6

Waning Crescent 1%

03:35

20:08

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
19 Bad

Sun - Rise: 05:32, Set: 20:41, Transit: 13:05. Moon - Rise: 03:35, Set: 20:08. Civil Dark: 21:21 - 04:52. Nautical Dark: 22:14 - 03:59. Astro Dark: 23:25 - 02:50

Total Clouds (% Sky Obscured)

52
52
52
52
52
45
45
45
45
45
45
66
66
66
66
66
66
100
100
100
100
100
100
37

Low Clouds (% Sky Obscured)

3
3
3
3
3
11
11
11
11
11
11
9
9
9
9
9
9
81
81
81
81
81
81
1

Medium Clouds (% Sky Obscured)

31
31
31
31
31
27
27
27
27
27
27
53
53
53
53
53
53
100
100
100
100
100
100
23

High Clouds (% Sky Obscured)

31
31
31
31
31
28
28
28
28
28
28
45
45
45
45
45
45
27
27
27
27
27
27
23

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
6
5
6

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

Precipitation Probability (%)

43
39
33
23
16
13
0
14
16
17
20
21
18
13
10
9
7
7
8
14
21
21
23
29

Precipitation Amount (mm)

0.72
0.51
0.32
0.15
0.04
0.01
0
0.01
0.02
0.03
0.06
0.08
0.07
0.06
0.07
0.05
0.05
0.06
0.08
0.22
0.36
0.31
0.26
0.28

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
98
98
98
98
99
100
100
100
100
100
100
100
100
100
100
100
98
94
91
89
90
91
94

Pressure (mb)

998
998
998
998
999
999
999
999
999
999
999
999
999
999
999
999
999
1000
1000
1000
1000
1000
1000
1001

Ozone (du)

356
356
356
356
356
357
357
357
357
358
359
360
360
361
361
362
362
362
362
362
361
359
356
355

Saturday 7

Waning Crescent 0%

04:47

20:44

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

Sun - Rise: 05:33, Set: 20:39, Transit: 13:05. Moon - Rise: 04:47, Set: 20:44. Civil Dark: 21:19 - 04:54. Nautical Dark: 22:12 - 04:01. Astro Dark: 23:21 - 02:54

Total Clouds (% Sky Obscured)

37
37
37
37
37
100
100
100
100
100
100
94
94
94
94
94
94
69
69
69
69
69
69
23

Low Clouds (% Sky Obscured)

1
1
1
1
1
100
100
100
100
100
100
93
93
93
93
93
93
15
15
15
15
15
15
13

Medium Clouds (% Sky Obscured)

23
23
23
23
23
13
13
13
13
13
13
19
19
19
19
19
19
21
21
21
21
21
21
14

High Clouds (% Sky Obscured)

23
23
23
23
23
48
48
48
48
48
48
0
0
0
0
0
0
61
61
61
61
61
61
6

ISS Passover

Visibility (miles)

8
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
None
None
None
None
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
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

Precipitation Probability (%)

28
17
12
10
11
0
0
0
0
7
13
14
8
5
0
0
5
7
8
11
13
14
11
9

Precipitation Amount (mm)

0.23
0.15
0.08
0.04
0.01
0
0
0
0
0.01
0.04
0.07
0.04
0.01
0
0
0.02
0.04
0.04
0.04
0.04
0.05
0.05
0.05

Wind Speed/Direction (mph)

10
9
8
9
10
11
11
11
11
11
11
11
12
13
13
14
14
14
14
14
14
14
13
12

Chance of Frost

Temperature (°C)

17
15
14
14
13
13
13
12
12
12
12
12
14
15
17
17
18
18
18
18
18
18
18
19

Feels Like (°C)

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

Dew Point (°C)

16
15
14
14
13
13
13
12
12
12
12
12
14
15
17
17
18
18
18
18
18
18
18
18

Relative Humidity (%)

96
99
100
100
100
100
100
100
100
100
100
100
100
100
100
99
97
96
97
100
100
100
95
94

Pressure (mb)

1001
1002
1003
1003
1004
1004
1004
1004
1005
1005
1005
1005
1006
1007
1007
1008
1008
1008
1008
1008
1009
1009
1009
1009

Ozone (du)

355
357
358
359
360
361
362
364
364
362
359
355
351
346
342
339
337
336
334
333
332
330
328
326

Forecast for Bourn, Cambridgeshire, UK (52.20,-0.05)

Generated: 01/08/21 20:48:26. Forecast: 01/08/21 to 07/08/21. Timezone: UTC+1.00