Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 12

Waning Gibbous 95%

22:36

06:13

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

Sun - Rise: 04:58, Set: 21:15, Transit: 13:06. Moon - Rise: 22:36, Set: 06:13. Civil Dark: 22:01 - 04:13. Nautical Dark: 23:08 - 03:06. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

0
0
0
56
22
12
3
22
28
32
36
32
32
1
34
35
5
0
0
0
0
0
33
51

Low Clouds (% Sky Obscured)

0
0
0
0
14
12
3
22
27
32
35
32
32
0
0
19
0
0
0
0
0
0
33
50

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
8
5
0
0
0
0
0
0
0
1

High Clouds (% Sky Obscured)

0
0
0
31
6
0
2
2
3
5
8
7
4
1
34
35
5
0
0
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
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)

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

Chance of Frost

Temperature (°C)

16
18
20
22
24
25
26
27
28
28
29
28
28
27
25
23
21
20
19
18
16
15
15
14

Feels Like (°C)

17
19
21
23
24
26
26
27
27
27
27
26
26
26
24
22
20
19
19
18
16
15
16
14

Dew Point (°C)

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

Relative Humidity (%)

78
71
62
57
50
41
38
34
31
29
28
29
35
38
42
51
56
61
66
71
78
83
90
92

Pressure (mb)

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

Ozone (du)

324
325
326
329
332
333
334
335
337
337
335
336
338
338
339
339
342
345
347
346
345
345
345
344

Sunday 13

Waning Gibbous 89%

22:51

07:37

06 Bad
07 Bad
08 Bad
09 Bad
10 OK
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 OK

Sun - Rise: 04:59, Set: 21:14, Transit: 13:06. Moon - Rise: 22:51, Set: 07:37. Civil Dark: 22:00 - 04:14. Nautical Dark: 23:07 - 03:08. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

63
62
60
50
34
71
76
67
80
74
69
84
71
62
57
61
100
100
100
100
100
91
64
23

Low Clouds (% Sky Obscured)

56
42
45
47
31
68
49
65
74
55
59
46
46
33
45
40
42
44
33
43
35
24
0
0

Medium Clouds (% Sky Obscured)

11
26
21
11
0
0
23
2
22
22
20
30
30
21
12
22
56
73
81
72
100
52
42
13

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
2
2
40
50
100
100
100
100
71
75
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
3
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
Very Light Rain
Light Rain
None
None
None
None
None
None
None
None

Precipitation Probability (%)

2
1
0
0
0
0
0
1
0
3
4
4
15
6
40
66
23
5
15
17
8
3
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.8
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

14
15
17
19
21
23
25
26
27
27
27
27
26
25
24
22
21
20
19
18
18
17
17
17

Feels Like (°C)

15
15
17
19
22
23
23
26
27
27
27
26
25
23
23
22
20
19
18
18
16
15
17
17

Dew Point (°C)

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

Relative Humidity (%)

87
78
71
62
56
53
52
47
42
38
39
46
52
51
56
68
81
85
86
82
68
61
64
70

Pressure (mb)

1014
1014
1014
1013
1013
1013
1012
1012
1011
1011
1010
1010
1010
1010
1010
1010
1011
1011
1011
1011
1011
1011
1010
1010

Ozone (du)

343
342
341
340
339
338
335
333
330
331
331
328
326
327
325
327
327
328
330
332
339
337
336
335

Monday 14

Waning Gibbous 80%

23:04

09:00

06 Bad
07 OK
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 Bad
00 Good
01 Good
02 Good
03 OK
04 OK
05 OK

Sun - Rise: 05:00, Set: 21:13, Transit: 13:06. Moon - Rise: 23:04, Set: 09:00. Civil Dark: 21:59 - 04:16. Nautical Dark: 23:05 - 03:10. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

54
34
41
50
44
86
57
89
74
86
80
74
81
82
67
50
41
48
0
8
16
23
24
27

Low Clouds (% Sky Obscured)

37
0
36
50
44
64
44
10
26
57
57
47
57
55
39
43
0
0
0
8
16
23
22
22

Medium Clouds (% Sky Obscured)

25
18
12
0
0
13
0
30
16
14
11
1
72
23
15
16
15
21
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
2
2
4
2
0
35
40
50
50
0
0
0
0
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
0
0
0
0
0
0
0
0
0
0
0
0
2
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)

7
8
10
11
12
13
15
13
14
15
16
18
16
14
11
12
11
10
10
10
9
8
8
8

Chance of Frost

Temperature (°C)

17
18
19
21
22
24
25
25
26
26
25
25
23
22
21
19
18
16
15
14
13
12
12
12

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
68
64
58
52
45
45
40
34
31
34
36
43
48
47
43
49
56
61
67
75
83
86
86

Pressure (mb)

1011
1011
1011
1011
1012
1012
1012
1012
1012
1012
1012
1012
1013
1013
1014
1014
1015
1016
1016
1016
1016
1016
1016
1017

Ozone (du)

335
334
333
332
331
329
330
332
335
339
336
340
342
343
345
345
346
347
351
359
364
366
364
360

Tuesday 15

Waning Gibbous 70%

23:16

10:23

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 Bad
21 Bad
22 Bad
23 Bad
00 OK
01 OK
02 OK
03 OK
04 Bad
05 Bad

Sun - Rise: 05:02, Set: 21:12, Transit: 13:06. Moon - Rise: 23:16, Set: 10:23. Civil Dark: 21:57 - 04:17. Nautical Dark: 23:03 - 03:12. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

26
40
66
64
75
98
100
100
100
100
96
93
88
82
74
68
59
50
46
37
31
20
30
48

Low Clouds (% Sky Obscured)

23
26
28
31
41
60
61
65
73
81
75
62
67
45
43
29
27
25
39
33
26
20
29
37

Medium Clouds (% Sky Obscured)

0
19
53
62
67
72
70
70
65
45
73
91
78
82
74
68
59
50
46
37
31
20
30
48

High Clouds (% Sky Obscured)

0
1
2
3
6
9
12
8
13
15
20
4
20
30
40
40
40
4
8
15
3
13
3
16

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
7
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
12
19
27
38
49
67
75
79
80
66
47
12
16
15
0
2
23
19
21
9

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.4
0.6
0.6
0.7
0.4
0.2
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
75
66
56
46
38
38
43
39
43
49
49
45
46
47
50
55
57
61
60
69
87
89
92

Pressure (mb)

1017
1017
1017
1017
1017
1016
1016
1016
1016
1016
1016
1016
1015
1015
1015
1015
1015
1016
1016
1016
1015
1015
1015
1015

Ozone (du)

358
357
355
355
350
347
343
339
335
333
333
331
329
327
325
322
320
316
313
310
307
303
304
302

Wednesday 16

Waning Gibbous 67%

23:27

11:46

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
23 OK
00 OK
01 OK
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 05:03, Set: 21:11, Transit: 13:07. Moon - Rise: 23:27, Set: 11:46. Civil Dark: 21:56 - 04:19. Nautical Dark: 23:01 - 03:14. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

48
61
79
100
100
100
100
100
100
100
86
72
59
66
52
25
5
0
0
24
49
73
75
78

Low Clouds (% Sky Obscured)

37
24
14
9
12
21
29
35
41
47
39
31
22
39
19
0
0
0
0
22
43
65
70
77

Medium Clouds (% Sky Obscured)

42
40
10
55
47
50
50
50
50
49
50
50
45
49
52
25
5
0
0
24
35
30
22
14

High Clouds (% Sky Obscured)

8
46
60
86
100
100
100
88
100
81
77
63
31
13
20
25
5
0
0
23
32
41
38
41

ISS Passover

Visibility (miles)

9
9
9
9
9
8
9
8
4
9
7
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 (%)

3
6
27
34
27
40
42
47
45
45
34
38
20
32
28
22
24
24
23
24
23
21
22
21

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

11
12
13
15
16
17
18
19
20
20
19
20
20
20
20
19
18
18
17
16
16
16
16
16

Dew Point (°C)

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

Relative Humidity (%)

92
92
93
89
92
81
91
89
85
94
92
94
91
91
92
93
93
95
95
96
96
95
95
93

Pressure (mb)

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

Ozone (du)

300
301
301
300
299
299
300
304
305
305
306
310
312
315
316
318
319
321
323
325
323
321
319
316

Thursday 17

Waning Gibbous 59%

23:40

13:10

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 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 05:04, Set: 21:10, Transit: 13:07. Moon - Rise: 23:40, Set: 13:10. Civil Dark: 21:55 - 04:20. Nautical Dark: 22:59 - 03:17. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

81
86
91
96
97
98
99
100
100
100
90
80
69
64
63
62
74
87
100
95
91
87
74
62

Low Clouds (% Sky Obscured)

81
71
55
41
52
63
74
61
50
36
39
47
54
40
25
10
8
4
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

11
29
53
72
85
88
91
87
79
65
58
57
58
58
55
50
33
17
1
16
30
45
35
23

High Clouds (% Sky Obscured)

46
67
81
93
93
92
92
95
97
100
75
57
40
32
34
17
43
72
100
84
74
61
46
32

ISS Passover

Visibility (miles)

9
9
8
7
7
7
8
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
Very Light Rain
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

Precipitation Probability (%)

19
27
34
40
46
51
52
60
68
71
71
69
65
55
42
20
15
10
0
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
92
88
84
79
75
72
68
69
70
72
79
85
93
92
92
92
90
90
89
89
89
92
89

Pressure (mb)

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

Ozone (du)

314
311
311
311
310
311
312
312
314
315
317
318
318
319
320
322
324
325
326
327
328
328
329
329

Friday 18

Third Quarter 48%

23:56

14:37

06 Bad
07 OK
08 OK
09 OK
10 OK
11 OK
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

Sun - Rise: 05:06, Set: 21:09, Transit: 13:07. Moon - Rise: 23:56, Set: 14:37. Civil Dark: 21:53 - 04:22. Nautical Dark: 22:57 - 03:19. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

49
42
30
19
24
29
34
36
42
52
66
76
83
89
92
99
93
86
75

Low Clouds (% Sky Obscured)

0
0
0
0
9
17
24
27
31
33
27
21
14
10
5
1
1
0
0

Medium Clouds (% Sky Obscured)

11
9
7
5
4
3
1
1
1
1
19
34
50
57
57
63
52
38
27

High Clouds (% Sky Obscured)

19
19
9
10
10
11
11
12
14
13
10
8
10
39
67
96
86
75
64

ISS Passover

Visibility (miles)

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

Precipitation Type

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
4
5
1
7
5
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

14
15
17
18
20
21
22
23
23
24
25
24
24
23
21
19
18
17
16

Feels Like (°C)

12
12
15
15
15
16
17
17
20
21
20
20
21
22
17
16
16
15
15

Dew Point (°C)

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

Relative Humidity (%)

87
86
74
65
57
50
45
40
35
30
26
29
32
35
41
48
58
62
67

Pressure (mb)

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

Ozone (du)

330
330
330
331
331
331
332
333
332
332
332
334
335
337
339
341
344
343
343

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

Generated: 12/07/25 06:26:17. Forecast: 12/07/25 to 18/07/25. Timezone: UTC+1.00