Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 27

Waning Gibbous 49%

23:21

13:17

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

Sun - Rise: 05:19, Set: 20:57, Transit: 13:07. Moon - Rise: 23:21, Set: 13:17. Civil Dark: 21:38 - 04:37. Nautical Dark: 22:36 - 03:40. Astro Dark: 00:05 - 02:14

Total Clouds (% Sky Obscured)

46
33
27
34
20
90
96
100
89
76
47
32
3
6
2
1
0
0
0
0
0
0
0
0

Low Clouds (% Sky Obscured)

38
30
26
27
19
67
74
88
66
30
2
2
2
2
2
2
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
27
16
0
47
49
57
41
50
40
24
2
3
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
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
8
8
4
8
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
0
0
3
17
21
34
33
22
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)

3
3
4
7
8
8
7
8
8
9
9
8
5
4
4
4
4
4
4
3
3
3
3
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
66
58
55
52
47
45
54
60
59
58
67
72
77
79
83
84
87
87
87
87
87
87
79

Pressure (mb)

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

Ozone (du)

367
365
363
363
366
368
368
370
374
380
384
382
380
382
380
378
380
375
367
364
361
360
359
358

Sunday 28

Third Quarter 37%

23:38

14:44

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

Sun - Rise: 05:20, Set: 20:55, Transit: 13:07. Moon - Rise: 23:38, Set: 14:44. Civil Dark: 21:37 - 04:39. Nautical Dark: 22:34 - 03:42. Astro Dark: 00:00 - 02:19

Total Clouds (% Sky Obscured)

0
3
0
20
20
32
48
51
62
60
68
47
13
7
3
45
35
35
38
59
48
45
78
83

Low Clouds (% Sky Obscured)

0
3
0
14
14
22
37
13
24
14
3
21
9
4
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
29
34
28
19
8
0
0
0
0
0
0
2
16
27
27
36
33

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
2
6
40
29
3
2
3
50
50
45
45
45
8
5
28
35

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
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)

1
1
1
1
1
2
3
3
3
2
3
6
9
7
5
3
4
4
4
4
3
3
3
3

Chance of Frost

Temperature (°C)

15
17
19
20
21
22
23
23
24
24
24
23
21
19
18
17
16
15
14
14
13
13
13
15

Feels Like (°C)

17
20
21
23
23
23
24
25
26
26
25
22
20
19
19
18
15
14
13
12
12
13
14
14

Dew Point (°C)

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

Relative Humidity (%)

72
66
60
56
51
47
45
41
40
39
39
49
62
63
67
69
70
70
70
70
71
71
74
71

Pressure (mb)

1025
1026
1026
1026
1026
1025
1025
1025
1025
1024
1024
1024
1024
1025
1025
1025
1025
1024
1024
1024
1024
1023
1023
1023

Ozone (du)

356
355
356
356
356
355
354
351
350
348
345
342
337
334
332
330
329
329
329
328
327
327
327
327

Monday 29

Waning Crescent 35%

00:01

16:12

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

Sun - Rise: 05:22, Set: 20:54, Transit: 13:07. Moon - Rise: 00:01, Set: 16:12. Civil Dark: 21:35 - 04:41. Nautical Dark: 22:31 - 03:45. Astro Dark: 23:54 - 02:24

Total Clouds (% Sky Obscured)

71
58
34
50
40
30
25
31
34
33
45
78
59
40
46
76
97
74
52
18
42
73
100
95

Low Clouds (% Sky Obscured)

0
2
3
15
22
22
19
26
31
31
31
6
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

26
17
0
0
4
0
0
0
0
0
0
0
0
2
0
0
0
0
0
1
3
1
0
0

High Clouds (% Sky Obscured)

35
40
40
40
10
4
0
0
0
2
13
70
59
41
51
80
97
82
62
26
46
78
99
90

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
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)

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

Chance of Frost

Temperature (°C)

16
18
20
22
23
24
25
26
26
26
26
25
23
21
19
18
17
17
16
16
16
16
16
16

Feels Like (°C)

16
17
19
21
22
25
26
26
27
27
26
25
22
20
19
17
17
16
16
16
16
16
16
16

Dew Point (°C)

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

Relative Humidity (%)

69
64
60
55
50
44
40
37
37
37
40
50
60
66
69
72
72
73
74
73
73
74
75
73

Pressure (mb)

1023
1023
1023
1022
1022
1021
1020
1020
1019
1019
1018
1018
1018
1019
1019
1019
1019
1019
1018
1018
1017
1017
1017
1017

Ozone (du)

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

Tuesday 30

Waning Crescent 27%

00:33

17:35

08 Bad
09 Bad
10 Bad
11 Bad
12 OK
13 OK
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

Sun - Rise: 05:23, Set: 20:52, Transit: 13:07. Moon - Rise: 00:33, Set: 17:35. Civil Dark: 21:33 - 04:42. Nautical Dark: 22:29 - 03:47. Astro Dark: 23:50 - 02:29

Total Clouds (% Sky Obscured)

100
100
80
60
19
48
79
100
100
100
100
100
86
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
5
11
16
16
17
16
19
23
24
30
23
7
46
70
92
92
93
92
93

Medium Clouds (% Sky Obscured)

0
0
0
0
0
27
17
45
77
89
82
52
62
94
94
91
89
92
96
100
100
100
100
100

High Clouds (% Sky Obscured)

100
100
83
66
17
36
80
100
100
100
100
100
57
100
96
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
6
5
6
4
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
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
3
5
7
17
25
30
49
61
68
78
95
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.3
0.4
0.7
0.6
1.2
2.1
2.3
2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

18
20
22
24
25
27
27
28
28
28
27
26
24
22
21
20
20
19
18
18
18
17
17
17

Feels Like (°C)

19
21
22
24
24
28
27
27
27
27
25
25
23
22
20
19
18
18
18
18
18
17
17
16

Dew Point (°C)

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

Relative Humidity (%)

66
64
60
56
49
45
41
40
41
44
53
60
65
65
60
61
59
63
69
82
89
90
92
92

Pressure (mb)

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

Ozone (du)

324
324
326
329
329
329
327
324
323
321
318
319
318
315
313
313
312
312
312
313
314
315
316
318

Wednesday 31

Waning Crescent 17%

01:20

18:48

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

Sun - Rise: 05:25, Set: 20:50, Transit: 13:07. Moon - Rise: 01:20, Set: 18:48. Civil Dark: 21:31 - 04:44. Nautical Dark: 22:26 - 03:49. Astro Dark: 23:45 - 02:33

Total Clouds (% Sky Obscured)

100
100
100
98
75
80
81
76
95
71
59
55
52
40
57
74
92
95
97
100
89
79
69
69

Low Clouds (% Sky Obscured)

93
93
93
90
66
76
82
70
63
54
39
55
50
46
48
49
49
34
29
32
32
37
42
48

Medium Clouds (% Sky Obscured)

88
67
68
67
67
57
53
48
35
21
5
45
35
29
27
22
19
26
32
39
35
31
30
28

High Clouds (% Sky Obscured)

100
90
76
70
70
72
72
73
87
46
25
49
45
46
50
52
55
67
83
99
77
55
36
26

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

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

Precipitation Probability (%)

95
95
95
95
95
95
81
26
15
10
1
83
86
84
76
69
64
55
46
37
44
51
58
54

Precipitation Amount (mm)

2.2
2.4
2
1.8
2
1.1
0.5
0
0
0
0
0.4
0.5
0.5
0.4
0.4
0.3
0.2
0
0
0
0
0.3
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

17
18
18
18
19
20
21
22
22
22
22
22
21
21
20
20
19
19
19
19
19
18
18
18

Feels Like (°C)

17
17
17
17
19
21
21
22
23
22
23
24
24
24
24
23
23
23
19
19
19
18
18
18

Dew Point (°C)

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

Relative Humidity (%)

90
90
89
88
81
72
71
68
68
69
69
72
76
81
86
86
88
88
88
88
88
88
89
90

Pressure (mb)

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

Ozone (du)

320
322
324
325
325
326
325
321
319
320
322
327
326
325
324
326
328
329
331
333
335
336
337
338

Thursday 1

Waning Crescent 10%

02:22

19:46

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

Sun - Rise: 05:26, Set: 20:49, Transit: 13:07. Moon - Rise: 02:22, Set: 19:46. Civil Dark: 21:29 - 04:46. Nautical Dark: 22:24 - 03:52. Astro Dark: 23:40 - 02:37

Total Clouds (% Sky Obscured)

69
68
77
86
95
95
96
96
97
99
100
100
100
100
94
89
84
68
50
34
28
23
19
32

Low Clouds (% Sky Obscured)

55
61
70
79
88
80
68
60
63
68
73
67
59
51
47
47
46
33
16
2
12
22
34
42

Medium Clouds (% Sky Obscured)

19
10
9
8
8
11
16
20
23
31
45
52
59
61
61
56
55
43
33
23
17
10
3
2

High Clouds (% Sky Obscured)

13
0
9
19
30
40
44
58
69
84
100
100
100
100
75
56
44
45
35
20
13
7
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 (%)

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

Precipitation Probability (%)

45
29
24
20
19
19
18
20
26
29
32
48
63
76
72
61
36
24
12
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

19
20
20
20
21
21
23
22
22
22
23
23
19
19
18
18
18
17
12
13
12
12
12
11

Dew Point (°C)

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

Relative Humidity (%)

88
86
84
81
77
74
67
59
54
58
64
70
72
73
74
76
75
75
80
84
89
89
89
89

Pressure (mb)

1011
1011
1011
1011
1011
1011
1010
1010
1010
1010
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009

Ozone (du)

338
338
339
339
339
339
339
340
340
342
343
345
347
350
353
352
352
351
353
356
358
353
348
343

Friday 2

Waning Crescent 4%

03:35

20:27

08 OK
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 OK
23 OK
00 Good

Sun - Rise: 05:28, Set: 20:47, Transit: 13:07. Moon - Rise: 03:35, Set: 20:27. Civil Dark: 21:27 - 04:48. Nautical Dark: 22:21 - 03:54. Astro Dark: 23:36 - 02:41

Total Clouds (% Sky Obscured)

45
58
55
52
48
52
55
54
61
68
72
66
59
54
40
29
13

Low Clouds (% Sky Obscured)

51
60
55
52
45
53
56
59
52
49
48
49
50
51
45
38
34

Medium Clouds (% Sky Obscured)

2
2
6
10
17
22
27
37
30
29
23
13
5
0
0
0
0

High Clouds (% Sky Obscured)

0
0
1
1
1
3
4
5
4
3
2
20
38
51
42
34
24

ISS Passover

Visibility (miles)

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

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

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

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
82
79
64
53
44
45
46
47
51
54
58
62
65
69
73
78

Pressure (mb)

1009
1009
1009
1009
1009
1009
1008
1008
1008
1008
1008
1008
1008
1009
1009
1009
1009

Ozone (du)

340
337
335
335
334
334
334
334
333
333
332
332
331
329
328
327
326

Forecast for Welwyn Garden City, Hertfordshire, United Kingdom (51.80,-0.21)

Generated: 27/07/24 08:02:31. Forecast: 27/07/24 to 02/08/24. Timezone: UTC+1.00