Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 2

Waning Gibbous 63%

21:11

13:02

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
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 06:17, Set: 19:45, Transit: 13:00. Moon - Rise: 21:11, Set: 13:02. Civil Dark: 20:20 - 05:42. Nautical Dark: 21:02 - 04:59. Astro Dark: 21:50 - 04:13

Total Clouds (% Sky Obscured)

78
84
87
100
100
100
100
100
100
100
93
77
96
94
96
100
100
99
100
88
100
98
98
96

Low Clouds (% Sky Obscured)

78
84
78
94
60
72
76
79
68
71
79
77
88
88
88
82
86
69
40
30
22
21
27
19

Medium Clouds (% Sky Obscured)

27
84
21
19
20
20
26
18
33
28
22
29
26
30
21
17
49
52
21
9
48
19
23
38

High Clouds (% Sky Obscured)

58
40
79
77
100
93
94
88
100
100
36
0
3
2
5
100
100
93
100
88
96
88
83
55

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 (%)

60
33
24
0
1
9
0
0
13
5
0
0
0
1
19
3
13
16
16
2
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)

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

Chance of Frost

Temperature (°C)

18
18
19
19
19
19
19
19
18
18
18
18
18
18
18
18
18
18
18
18
19
20
20
21

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

78
73
73
63
70
75
81
84
86
92
92
93
95
90
89
89
90
89
89
85
75
66
59
52

Pressure (mb)

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

Ozone (du)

300
299
298
297
296
298
297
296
296
296
297
298
298
297
296
296
296
296
295
294
295
293
293
293

Thursday 3

Waning Gibbous 51%

21:43

14:28

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
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 06:18, Set: 19:42, Transit: 12:59. Moon - Rise: 21:43, Set: 14:28. Civil Dark: 20:17 - 05:44. Nautical Dark: 21:00 - 05:01. Astro Dark: 21:47 - 04:15

Total Clouds (% Sky Obscured)

96
99
100
100
97
65
75
73
59
83
95
74
99
75
96
100
100
100
99
100
100
100
100
100

Low Clouds (% Sky Obscured)

24
37
46
72
55
28
8
5
14
17
20
19
20
21
60
100
95
94
97
98
89
99
100
99

Medium Clouds (% Sky Obscured)

19
30
15
17
14
20
14
12
20
26
44
40
42
35
22
15
20
92
89
88
98
100
100
100

High Clouds (% Sky Obscured)

88
90
100
100
83
62
57
54
19
55
54
66
65
49
66
68
96
100
86
80
78
100
91
91

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
2
9
8
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
Very Light Rain
None
None
None
None

Precipitation Probability (%)

0
1
5
2
6
11
4
6
3
0
0
4
17
15
16
17
27
28
47
69
40
72
61
46

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

22
23
23
23
23
22
22
21
19
18
18
17
17
17
17
17
17
18
19
20
20
20
20
19

Feels Like (°C)

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

Dew Point (°C)

10
11
10
12
14
14
16
16
15
14
14
14
15
14
14
15
15
15
16
17
18
18
16
16

Relative Humidity (%)

46
46
43
48
55
60
68
74
75
76
79
82
83
82
82
87
87
83
85
86
86
89
80
81

Pressure (mb)

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

Ozone (du)

291
290
290
289
289
289
289
289
290
290
290
289
288
287
288
289
290
289
289
288
293
294
295
295

Friday 4

Third Quarter 39%

22:30

15:48

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 OK
07 OK
08 Bad
09 OK
10 Bad
11 Bad
12 Bad

Sun - Rise: 06:20, Set: 19:40, Transit: 12:59. Moon - Rise: 22:30, Set: 15:48. Civil Dark: 20:15 - 05:45. Nautical Dark: 20:57 - 05:03. Astro Dark: 21:44 - 04:17

Total Clouds (% Sky Obscured)

100
100
99
99
100
100
100
100
100
55
55
60
60
99
98
54
49
27
31
70
43
62
49
87

Low Clouds (% Sky Obscured)

36
18
40
29
27
20
0
2
0
0
0
0
0
0
0
0
0
0
2
5
7
12
18
21

Medium Clouds (% Sky Obscured)

100
100
78
97
99
40
15
15
20
20
30
11
3
0
0
0
0
2
5
6
8
7
6
7

High Clouds (% Sky Obscured)

100
98
87
42
91
82
93
40
100
55
55
60
60
99
98
52
49
23
19
59
23
46
46
76

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
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

69
78
19
9
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
2
1

Precipitation Amount (mm)

0
0.7
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)

12
14
13
14
14
12
11
9
8
8
8
8
8
8
7
6
5
5
5
6
6
7
7
7

Chance of Frost

Temperature (°C)

18
18
18
19
19
18
17
16
16
15
14
14
14
13
13
13
12
12
11
13
15
16
18
19

Feels Like (°C)

15
14
13
14
14
14
14
13
12
12
13
12
12
12
10
10
11
9
11
12
13
15
16
17

Dew Point (°C)

14
10
8
6
5
6
7
7
8
8
9
9
9
9
9
10
10
10
10
9
9
8
8
7

Relative Humidity (%)

79
60
51
44
40
44
49
55
59
64
68
70
74
76
79
81
86
87
88
77
67
59
51
46

Pressure (mb)

1013
1014
1014
1014
1014
1015
1016
1017
1018
1018
1019
1019
1020
1020
1020
1021
1021
1022
1023
1023
1024
1024
1025
1025

Ozone (du)

296
295
297
299
301
304
309
311
315
321
321
319
319
315
312
310
307
305
303
302
300
298
297
296

Saturday 5

Waning Crescent 28%

23:36

16:53

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

Sun - Rise: 06:21, Set: 19:38, Transit: 12:59. Moon - Rise: 23:36, Set: 16:53. Civil Dark: 20:12 - 05:47. Nautical Dark: 20:55 - 05:05. Astro Dark: 21:41 - 04:20

Total Clouds (% Sky Obscured)

69
71
84
67
50
40
60
47
39
32
22
15
28
29
30
35
40
40
46
58
71
74
79
85

Low Clouds (% Sky Obscured)

18
17
13
9
5
0
0
0
0
2
5
8
6
3
0
0
0
0
0
0
0
0
0
2

Medium Clouds (% Sky Obscured)

7
4
3
4
5
5
6
5
11
10
6
4
1
0
0
0
1
1
11
58
71
74
79
85

High Clouds (% Sky Obscured)

61
53
48
34
16
2
11
6
1
0
0
3
24
29
30
35
40
40
45
55
50
50
52
63

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 (%)

3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1

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
7
7
6
6
5
4
4
3
3
3
4
3
3
3
4
4
4
4
6
7
9
9
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

17
19
19
18
19
19
19
16
16
17
15
14
14
12
12
11
11
11
11
13
14
16
17
19

Dew Point (°C)

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

Relative Humidity (%)

42
39
38
36
36
37
47
52
56
58
59
62
63
63
64
65
68
71
72
69
63
56
55
48

Pressure (mb)

1025
1025
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1023
1023
1022
1022
1022
1021
1021
1021
1020
1020
1019
1019

Ozone (du)

294
292
290
289
289
288
288
288
288
290
290
290
290
290
289
289
290
290
291
291
291
290
290
290

Sunday 6

Waning Crescent 18%

00:58

17:40

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
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 06:23, Set: 19:36, Transit: 12:58. Moon - Rise: 00:58, Set: 17:40. Civil Dark: 20:10 - 05:49. Nautical Dark: 20:52 - 05:07. Astro Dark: 21:38 - 04:22

Total Clouds (% Sky Obscured)

82
81
80
86
61
80
95
99
98
98
99
100
94
87
79
76
72
68
65
63
61
72
85
98

Low Clouds (% Sky Obscured)

2
50
55
15
20
6
7
9
10
15
20
21
23
26
28
26
25
27
24
17
14
23
31
42

Medium Clouds (% Sky Obscured)

79
67
80
84
10
0
4
95
10
72
85
88
73
57
43
41
39
46
53
51
49
47
42
37

High Clouds (% Sky Obscured)

52
10
0
45
56
80
94
96
94
96
98
70
46
26
12
8
6
3
13
24
31
43
53
63

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
8
6
4
6
8
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 (%)

8
11
3
3
2
1
4
7
24
25
4
20
23
21
25
23
19
12
11
11
9
12
7
2

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

Chance of Frost

Temperature (°C)

24
25
25
24
24
24
23
21
20
19
19
18
18
18
17
17
17
17
17
18
18
19
19
20

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

46
38
39
43
41
39
44
49
51
61
63
65
67
72
76
79
77
74
72
65
58
53
54
55

Pressure (mb)

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

Ozone (du)

290
290
290
291
292
290
291
293
297
298
299
300
301
302
302
303
305
307
309
308
308
307
307
307

Monday 7

Waning Crescent 10%

02:28

18:12

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 OK
07 OK
08 OK
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 06:25, Set: 19:33, Transit: 12:58. Moon - Rise: 02:28, Set: 18:12. Civil Dark: 20:08 - 05:50. Nautical Dark: 20:49 - 05:09. Astro Dark: 21:35 - 04:24

Total Clouds (% Sky Obscured)

100
99
100
100
100
100
100
100
100
100
100
100
84
70
54
44
35
21
22
24
20
39
58
76

Low Clouds (% Sky Obscured)

39
37
35
26
16
6
2
1
0
23
46
69
57
45
33
22
11
0
0
3
3
29
54
76

Medium Clouds (% Sky Obscured)

36
36
35
57
78
100
100
99
97
98
99
100
84
69
54
35
22
6
9
12
10
7
3
0

High Clouds (% Sky Obscured)

88
94
100
100
100
100
100
100
100
100
100
100
84
69
43
27
15
2
1
1
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 (%)

16
12
1
3
0
0
0
0
0
0
1
0
3
7
5
10
14
18
15
20
36
46
47
36

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

17
20
20
20
21
21
22
14
14
13
13
12
12
11
11
11
11
11
11
10
10
11
12
13

Dew Point (°C)

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

Relative Humidity (%)

56
55
53
52
55
58
61
65
67
72
73
74
75
76
76
76
77
77
79
71
64
57
55
52

Pressure (mb)

1015
1015
1014
1014
1014
1014
1014
1014
1014
1014
1014
1013
1013
1013
1013
1012
1012
1012
1011
1011
1010
1010
1010
1009

Ozone (du)

306
305
304
304
304
305
305
306
306
307
309
311
313
318
323
328
334
339
345
345
344
344
346
348

Tuesday 8

Waning Crescent 4%

03:57

18:34

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 Bad
05 Bad
06 Bad

Sun - Rise: 06:26, Set: 19:31, Transit: 12:58. Moon - Rise: 03:57, Set: 18:34. Civil Dark: 20:05 - 05:52. Nautical Dark: 20:47 - 05:11. Astro Dark: 21:32 - 04:26

Total Clouds (% Sky Obscured)

77
77
76
70
68
64
73
86
97
87
81
78
65
51
40
54
64
73

Low Clouds (% Sky Obscured)

77
77
76
70
68
57
45
34
23
21
23
21
19
17
24
27
30
34

Medium Clouds (% Sky Obscured)

0
0
0
4
7
11
20
29
35
24
16
5
12
16
21
21
20
16

High Clouds (% Sky Obscured)

0
0
0
0
0
1
31
55
79
65
51
52
54
32
5
31
58
73

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

27
17
0
10
15
18
22
22
16
14
11
0
2
2
0
1
1
1

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

17
18
18
18
17
16
16
15
14
14
14
13
13
13
12
12
11
11

Feels Like (°C)

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

Dew Point (°C)

7
7
7
7
7
8
8
9
9
9
9
9
9
9
8
7
7
7

Relative Humidity (%)

49
49
48
47
51
56
59
65
69
72
75
76
77
77
75
73
75
76

Pressure (mb)

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

Ozone (du)

350
348
347
346
347
348
349
351
353
355
357
360
362
362
362
362
359
357

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

Generated: 02/09/26 13:29:05. Forecast: 02/09/26 to 08/09/26. Timezone: UTC+1.00