Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 24

Waxing Gibbous 88%

18:53

00:41

23 OK
00 OK
01 OK
02 OK
03 Good
04 Good
05 Good
06 Good
07 Good
08 Good
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

Sun - Rise: 05:14, Set: 21:00, Transit: 13:07. Moon - Rise: 18:53, Set: 00:41. Civil Dark: 21:43 - 04:31. Nautical Dark: 22:42 - 03:32. Astro Dark: 00:28 - 01:53

Total Clouds (% Sky Obscured)

20
37
26
36
5
2
2
0
0
0
66
76
67
58
57
76
100
93
100
80
94
85
94
94

Low Clouds (% Sky Obscured)

20
5
5
2
0
0
0
0
0
0
0
8
2
0
3
10
19
3
14
16
12
72
83
75

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
31
43
44
9
31
65
82
85
43
45
40
45
44

High Clouds (% Sky Obscured)

20
37
26
36
4
2
2
0
0
0
64
27
3
8
42
30
100
40
100
44
35
35
31
27

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 (%)

1
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
7
7
6
6
6
5
5
4
7
7
8
8
9
10
11
12
13
12
13
13
13
11
8

Chance of Frost

Temperature (°C)

20
19
17
16
16
15
14
13
15
17
19
21
23
23
25
26
27
27
27
27
25
24
22
20

Feels Like (°C)

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

Dew Point (°C)

10
10
11
10
10
10
9
9
9
9
9
8
7
6
6
6
6
6
6
4
4
9
10
11

Relative Humidity (%)

50
54
64
67
69
71
75
74
66
57
49
43
37
32
28
27
25
25
24
22
25
38
48
55

Pressure (mb)

1013
1013
1013
1013
1013
1012
1012
1012
1011
1011
1011
1011
1010
1009
1009
1008
1007
1007
1006
1006
1006
1007
1007
1007

Ozone (du)

330
331
332
334
336
338
338
339
334
330
329
326
327
326
326
325
324
322
322
320
319
319
320
321

Saturday 25

Waxing Gibbous 93%

19:43

01:24

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
20 Good
21 OK
22 Good

Sun - Rise: 05:15, Set: 20:59, Transit: 13:07. Moon - Rise: 19:43, Set: 01:24. Civil Dark: 21:41 - 04:33. Nautical Dark: 22:39 - 03:34. Astro Dark: 00:20 - 02:00

Total Clouds (% Sky Obscured)

91
90
81
80
93
97
96
96
94
100
82
79
88
83
63
67
67
58
73
58
49
0
18
13

Low Clouds (% Sky Obscured)

75
74
66
69
87
83
95
94
81
88
75
64
74
78
56
67
67
45
51
54
43
0
0
0

Medium Clouds (% Sky Obscured)

36
19
19
13
30
45
42
34
40
55
24
26
28
18
16
22
24
20
27
17
17
0
14
12

High Clouds (% Sky Obscured)

19
28
40
6
0
2
0
0
0
1
1
2
2
0
0
2
19
1
1
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
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
6
1
9
32
13
18
19
24
19
16
14
9
1
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)

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

Chance of Frost

Temperature (°C)

19
19
18
18
17
17
17
17
18
18
19
21
23
23
23
25
24
25
24
23
22
21
19
18

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

58
58
64
72
76
79
87
90
89
86
78
77
57
55
50
47
48
44
44
42
49
55
61
67

Pressure (mb)

1007
1007
1007
1006
1006
1006
1006
1006
1005
1005
1006
1006
1006
1006
1006
1006
1007
1007
1008
1008
1009
1010
1011
1012

Ozone (du)

322
323
322
322
323
324
325
327
328
328
329
330
331
332
331
329
329
329
329
329
329
329
329
329

Sunday 26

Waxing Gibbous 93%

20:21

02:20

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

Sun - Rise: 05:16, Set: 20:57, Transit: 13:07. Moon - Rise: 20:21, Set: 02:20. Civil Dark: 21:39 - 04:34. Nautical Dark: 22:37 - 03:37. Astro Dark: 00:14 - 02:06

Total Clouds (% Sky Obscured)

2
0
13
13
15
17
28
27
37
37
42
39
44
37
42
28
18
23
1
14
22
12
15
12

Low Clouds (% Sky Obscured)

0
0
10
10
13
15
22
24
34
33
38
33
34
28
25
18
11
15
0
7
20
0
0
0

Medium Clouds (% Sky Obscured)

2
0
0
0
0
0
0
0
0
0
0
0
0
2
10
2
3
3
1
4
5
6
6
4

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
2
2
2
2
2
0
0
0
0
0
0
2
0
0
2
3

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)

9
9
8
9
9
9
9
8
9
10
10
9
9
9
9
9
10
9
9
9
9
9
7
7

Chance of Frost

Temperature (°C)

17
16
15
15
14
14
13
13
15
16
18
19
21
23
24
25
26
27
27
27
27
25
23
22

Feels Like (°C)

16
16
16
15
14
13
13
13
14
15
16
18
19
20
22
23
24
25
26
26
25
24
23
22

Dew Point (°C)

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

Relative Humidity (%)

74
79
83
86
86
87
90
89
78
68
57
49
41
36
31
29
27
27
27
29
32
37
47
53

Pressure (mb)

1013
1013
1014
1014
1015
1016
1016
1017
1018
1019
1019
1019
1020
1020
1019
1019
1019
1019
1019
1018
1018
1018
1019
1020

Ozone (du)

331
330
329
330
330
329
329
329
328
327
327
327
327
326
326
326
326
326
327
326
325
325
324
324

Monday 27

Waxing Gibbous 97%

20:48

03:27

23 Good
00 Good
01 Bad
02 OK
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
20 Bad
21 Bad
22 OK

Sun - Rise: 05:18, Set: 20:56, Transit: 13:07. Moon - Rise: 20:48, Set: 03:27. Civil Dark: 21:38 - 04:36. Nautical Dark: 22:35 - 03:39. Astro Dark: 00:08 - 02:12

Total Clouds (% Sky Obscured)

8
15
49
41
78
71
63
56
59
65
68
77
69
86
95
97
100
100
100
81
49
48
48
38

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
1
0
0
0
0

Medium Clouds (% Sky Obscured)

2
4
8
11
78
71
63
56
15
19
23
66
24
63
24
31
21
78
77
50
11
8
6
1

High Clouds (% Sky Obscured)

4
13
41
17
3
2
19
43
34
30
26
30
45
64
90
95
100
100
100
43
41
40
40
31

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
2
5
2
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)

7
6
5
5
4
3
3
2
3
5
6
7
7
8
8
8
7
6
6
8
7
8
7
6

Chance of Frost

Temperature (°C)

21
19
18
18
17
16
16
17
17
20
22
24
25
27
28
29
29
30
30
30
29
28
26
24

Feels Like (°C)

21
20
19
18
18
17
16
17
18
19
21
23
24
26
27
27
28
29
29
27
28
27
25
24

Dew Point (°C)

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

Relative Humidity (%)

62
68
73
76
79
82
83
81
71
60
54
48
43
39
37
33
32
30
29
28
29
31
35
37

Pressure (mb)

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

Ozone (du)

324
323
323
324
324
323
322
321
321
320
319
318
318
318
318
318
320
322
325
326
325
324
324
325

Tuesday 28

Waxing Gibbous 100%

21:08

04:41

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

Sun - Rise: 05:19, Set: 20:54, Transit: 13:07. Moon - Rise: 21:08, Set: 04:41. Civil Dark: 21:36 - 04:38. Nautical Dark: 22:32 - 03:41. Astro Dark: 00:02 - 02:17

Total Clouds (% Sky Obscured)

33
5
4
1
0
0
0
2
3
4
18
7
2
3
6
8
17
32
28
24
27
30
28
32

Low 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

Medium Clouds (% Sky Obscured)

1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
3
3
7
9
6
2
2

High Clouds (% Sky Obscured)

32
5
4
1
0
0
0
2
3
4
18
7
2
3
6
8
17
27
17
5
8
13
23
28

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)

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

Chance of Frost

Temperature (°C)

23
21
20
19
18
17
17
17
19
21
24
27
28
30
32
32
33
33
33
33
32
30
27
25

Feels Like (°C)

23
21
20
19
19
18
18
19
20
23
25
26
28
30
30
31
31
31
31
32
32
30
29
28

Dew Point (°C)

8
8
9
9
9
9
10
12
12
12
12
11
10
9
8
8
7
7
7
6
6
6
6
7

Relative Humidity (%)

39
43
48
52
55
59
63
68
63
55
46
38
32
27
23
22
20
18
19
19
19
23
26
31

Pressure (mb)

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

Ozone (du)

325
325
326
327
331
333
328
327
326
326
326
325
324
323
322
321
320
319
319
319
319
318
318
317

Wednesday 29

Full Moon 100%

21:24

05:57

23 OK
00 OK
01 OK
02 OK
03 OK
04 OK
05 OK
06 OK
07 OK
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 OK
21 Good
22 OK

Sun - Rise: 05:21, Set: 20:53, Transit: 13:07. Moon - Rise: 21:24, Set: 05:57. Civil Dark: 21:34 - 04:40. Nautical Dark: 22:30 - 03:44. Astro Dark: 23:57 - 02:22

Total Clouds (% Sky Obscured)

36
37
37
33
29
30
35
39
45
51
58
61
63
66
65
73
76
76
81
85
62
37
14
37

Low 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

Medium Clouds (% Sky Obscured)

1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
7
10
7
4
2
6

High Clouds (% Sky Obscured)

36
37
37
33
29
30
35
39
45
51
58
61
63
66
65
73
76
76
81
85
62
35
7
33

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)

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

Chance of Frost

Temperature (°C)

23
22
20
19
19
18
18
18
19
21
24
26
28
29
31
31
32
32
32
32
31
29
27
25

Feels Like (°C)

27
26
25
18
20
20
20
19
19
20
22
23
24
24
26
32
32
30
30
31
31
30
29
29

Dew Point (°C)

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

Relative Humidity (%)

38
45
55
61
68
76
74
73
72
60
51
43
37
31
27
25
23
21
21
21
21
25
30
35

Pressure (mb)

1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1014
1014
1013
1013
1013
1013
1012
1012
1012
1013
1013

Ozone (du)

318
320
322
322
322
322
322
321
321
321
322
322
323
323
324
321
319
317
315
314
312
313
314
315

Thursday 30

Waning Gibbous 98%

21:37

07:14

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

Sun - Rise: 05:22, Set: 20:51, Transit: 13:07. Moon - Rise: 21:37, Set: 07:14. Civil Dark: 21:32 - 04:41. Nautical Dark: 22:28 - 03:46. Astro Dark: 23:52 - 02:26

Total Clouds (% Sky Obscured)

56
77
75
75
76
78
89
100
99
98
97
98
99
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
6
9
20
31
41

Medium Clouds (% Sky Obscured)

25
45
31
16
4
30
55
80
82
85
87
75
64
52
67
81
95
95
94
94

High Clouds (% Sky Obscured)

56
77
74
71
58
72
86
100
95
90
86
90
95
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
9

Fog (%)

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

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
2
1
0
1
0
0
9
15
20

Precipitation Amount (mm)

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

Chance of Frost

Temperature (°C)

23
22
20
19
18
17
17
18
18
20
22
23
25
26
27
28
29
29
28
27

Feels Like (°C)

28
27
26
18
19
19
19
19
19
18
18
19
19
19
19
28
28
27
29
30

Dew Point (°C)

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

Relative Humidity (%)

43
53
66
71
76
82
81
81
80
69
60
54
45
38
33
31
29
27
34
41

Pressure (mb)

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

Ozone (du)

318
320
322
320
317
314
315
315
316
315
315
315
313
312
310
309
308
307
308
310

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

Generated: 24/07/26 23:42:25. Forecast: 24/07/26 to 30/07/26. Timezone: UTC+1.00