Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 9

Waning Gibbous 72%

19:23

12:25

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
08 Bad
09 Bad
10 Bad

Sun - Rise: 07:12, Set: 16:18, Transit: 11:44. Moon - Rise: 19:23, Set: 12:25. Civil Dark: 16:55 - 06:36. Nautical Dark: 17:35 - 05:55. Astro Dark: 18:14 - 05:16

Total Clouds (% Sky Obscured)

58
62
78
78
95
99
94
100
100
100
100
100
100
100
100
100
100
100
96
90
96
82
89
99

Low Clouds (% Sky Obscured)

57
60
62
63
71
63
63
69
66
71
68
80
83
77
80
85
97
94
91
78
71
69
60
58

Medium Clouds (% Sky Obscured)

8
30
39
78
57
57
78
21
99
95
100
90
100
87
100
100
98
100
96
90
96
64
61
60

High Clouds (% Sky Obscured)

32
62
57
41
34
74
59
94
99
100
59
100
100
100
68
100
100
68
45
60
45
61
76
42

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
6
9
9
7
9
2
7
5
9
9
9
8

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

Precipitation Probability (%)

0
0
1
1
1
2
2
10
15
5
6
28
48
65
81
82
95
95
75
64
24
21
24
45

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.4
0.4
0.6
0.9
0.3
0.2
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
77
72
75
79
84
88
87
87
87
84
83
86
88
92
93
93
93
93
92
92
87
89
87

Pressure (mb)

1016
1015
1014
1014
1013
1013
1013
1013
1013
1012
1012
1011
1010
1010
1009
1008
1007
1007
1006
1005
1005
1006
1006
1005

Ozone (du)

265
265
265
268
266
264
264
264
264
264
265
266
268
272
272
270
270
271
274
276
276
278
280
283

Monday 10

Waning Gibbous 61%

20:48

13:01

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
08 Bad
09 Bad
10 Bad

Sun - Rise: 07:14, Set: 16:17, Transit: 11:44. Moon - Rise: 20:48, Set: 13:01. Civil Dark: 16:53 - 06:37. Nautical Dark: 17:34 - 05:57. Astro Dark: 18:13 - 05:17

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
81
94
71
87
93
61
43
52
100
97
100
100
99
100
99
100
92

Low Clouds (% Sky Obscured)

72
81
93
91
68
71
89
70
87
71
84
84
59
9
33
35
32
29
50
63
61
69
89
85

Medium Clouds (% Sky Obscured)

89
100
100
100
100
100
100
61
37
2
12
26
0
0
2
62
83
48
68
74
52
82
59
71

High Clouds (% Sky Obscured)

79
96
100
100
100
100
100
27
30
0
0
30
30
43
52
100
87
100
100
90
100
36
88
57

ISS Passover

Visibility (miles)

9
9
5
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
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

76
95
95
95
93
70
18
7
2
3
1
0
0
0
1
0
0
0
0
0
0
0
4
2

Precipitation Amount (mm)

0.5
0.6
1.8
1.6
0.4
0.4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

10
10
10
9
8
8
7
7
6
7
8
7
5
6
5
4
5
5
5
4
5
5
7
7

Dew Point (°C)

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

Relative Humidity (%)

80
80
83
86
89
84
77
80
84
87
88
88
88
90
90
93
93
94
94
95
95
93
90
84

Pressure (mb)

1005
1004
1003
1002
1002
1001
1001
1002
1003
1003
1004
1005
1005
1006
1006
1007
1007
1007
1007
1007
1007
1007
1007
1006

Ozone (du)

286
289
292
296
305
311
315
315
313
311
307
303
301
296
298
300
298
298
299
299
298
297
295
291

Tuesday 11

Waning Gibbous 50%

22:13

13:25

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
08 Bad
09 Bad
10 Bad

Sun - Rise: 07:16, Set: 16:15, Transit: 11:44. Moon - Rise: 22:13, Set: 13:25. Civil Dark: 16:52 - 06:39. Nautical Dark: 17:32 - 05:58. Astro Dark: 18:12 - 05:19

Total Clouds (% Sky Obscured)

95
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

89
76
73
65
73
73
51
77
79
82
77
68
67
72
81
62
65
79
91
89
85
87
89
90

Medium Clouds (% Sky Obscured)

59
64
40
40
51
26
30
89
92
97
99
98
99
100
97
96
98
94
100
100
88
100
86
95

High Clouds (% Sky Obscured)

52
100
100
100
100
100
100
100
100
95
98
100
100
100
100
100
100
100
100
100
100
100
96
92

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
4
8
7
4
3
5
5
7
4
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
Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
Very Light Rain
Very Light Rain
None

Precipitation Probability (%)

1
0
0
1
0
0
6
34
39
79
81
83
95
95
85
89
86
93
89
68
48
55
53
49

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.5
0.4
0.4
0.3
1.4
0.5
0.6
0.5
0.7
0.5
0.2
0
0.2
0.2
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

13
13
14
14
14
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
84
82
82
82
83
83
79
77
76
82
86
86
89
90
87
90
92
93
90
89
86
86
86

Pressure (mb)

1006
1005
1005
1005
1004
1004
1004
1004
1003
1003
1003
1003
1003
1003
1003
1003
1003
1003
1003
1003
1003
1004
1004
1004

Ozone (du)

289
289
285
278
276
274
273
273
273
271
270
270
269
267
269
269
270
270
270
270
269
270
269
270

Wednesday 12

Third Quarter 39%

23:34

13:42

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
08 Bad
09 Bad
10 Bad

Sun - Rise: 07:17, Set: 16:14, Transit: 11:45. Moon - Rise: 23:34, Set: 13:42. Civil Dark: 16:50 - 06:40. Nautical Dark: 17:31 - 06:00. Astro Dark: 18:11 - 05:20

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

91
80
65
79
82
84
88
73
73
76
66
52
40
46
51
57
51
43
41
45
50
51
57
60

Medium Clouds (% Sky Obscured)

99
88
98
100
98
88
96
72
64
45
32
38
77
84
69
63
44
43
98
47
59
15
74
17

High Clouds (% Sky Obscured)

89
92
96
100
100
100
100
100
100
100
100
100
100
100
100
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
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
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

41
40
41
45
46
48
56
52
47
42
46
38
6
12
12
0
3
8
10
11
11
10
8
7

Precipitation Amount (mm)

0
0
0
0
0
0
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

13
14
14
14
14
13
13
13
13
13
13
13
13
13
13
12
12
12
12
12
12
13
13
14

Feels Like (°C)

10
11
11
11
10
11
11
10
9
10
9
9
10
10
10
10
10
10
10
9
9
9
10
10

Dew Point (°C)

11
11
11
11
11
11
11
11
10
10
10
10
11
11
11
11
11
11
11
11
10
10
10
10

Relative Humidity (%)

86
84
83
82
83
86
86
86
86
86
84
84
87
90
92
93
93
92
90
90
87
86
83
79

Pressure (mb)

1005
1005
1004
1004
1004
1004
1004
1005
1004
1004
1004
1004
1003
1003
1003
1003
1002
1003
1003
1003
1003
1004
1004
1004

Ozone (du)

271
272
272
272
272
272
271
271
271
270
270
272
271
269
268
267
266
268
269
271
272
272
271
273

Thursday 13

Waning Crescent 29%

00:51

13:55

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
08 Bad
09 Bad
10 Bad

Sun - Rise: 07:19, Set: 16:12, Transit: 11:45. Moon - Rise: 00:51, Set: 13:55. Civil Dark: 16:49 - 06:42. Nautical Dark: 17:30 - 06:01. Astro Dark: 18:09 - 05:21

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
99
99
98
98
99
99
99
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

89
76
68
60
53
49
44
52
60
68
70
71
72
75
77
80
75
70
65
63
61
58
57
56

Medium Clouds (% Sky Obscured)

10
66
45
58
100
100
100
100
100
100
99
97
95
96
96
97
97
96
96
97
98
99
98
97

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
96
93
91
72
49
24
24
24
29
53
75
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
8
9
9
9
9
9
9
9
6
5
5
4
6
8
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None

Precipitation Probability (%)

1
1
3
10
12
6
0
23
32
39
54
72
92
95
95
76
73
72
70
68
58
39
34
28

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.2
0.4
0.6
1.3
1
0.4
0.3
0.3
0.2
0.3
0.2
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
78
80
82
83
89
93
93
93
90
86
84
87
89
90
93
98
96
95
93
90
89
86
82

Pressure (mb)

1005
1005
1005
1005
1005
1006
1006
1007
1007
1007
1007
1007
1007
1007
1006
1005
1004
1004
1003
1003
1002
1002
1002
1002

Ozone (du)

274
276
279
278
282
283
283
281
282
282
283
284
283
283
283
283
283
284
284
284
285
285
285
287

Friday 14

Waning Crescent 21%

02:04

14:05

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
08 Bad
09 Bad
10 Bad

Sun - Rise: 07:21, Set: 16:11, Transit: 11:45. Moon - Rise: 02:04, Set: 14:05. Civil Dark: 16:48 - 06:44. Nautical Dark: 17:29 - 06:03. Astro Dark: 18:08 - 05:23

Total Clouds (% Sky Obscured)

100
99
98
98
99
99
100
100
100
100
100
100
100
96
92
89
74
60
45
54
58
58
56
55

Low Clouds (% Sky Obscured)

54
57
61
64
56
49
49
59
68
81
77
73
73
78
75
72
69
60
45
54
58
56
53
48

Medium Clouds (% Sky Obscured)

96
97
97
95
91
88
85
89
94
100
79
56
42
47
42
26
18
10
3
3
3
4
18
34

High Clouds (% Sky Obscured)

100
96
92
87
88
93
100
100
100
100
71
42
13
12
10
14
10
4
2
6
15
28
33
42

ISS Passover

Visibility (miles)

9
9
9
9
9
8
7
6
7
8
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
Very Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
None
None
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

19
24
25
23
55
71
83
71
62
52
53
56
54
52
43
9
11
10
0
3
3
2
14
16

Precipitation Amount (mm)

0
0
0
0
0.2
0.4
0.5
0.3
0.2
0
0
0.2
0.2
0.2
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

11
11
11
11
11
11
12
12
12
12
12
11
11
11
10
10
10
10
10
10
10
10
10
10

Relative Humidity (%)

78
76
76
78
78
83
89
93
93
92
92
92
93
93
93
92
91
90
91
90
90
90
90
86

Pressure (mb)

1001
1001
1000
1000
1000
999
999
999
999
999
999
1000
1000
1001
1001
1001
1002
1002
1002
1003
1003
1003
1004
1004

Ozone (du)

288
290
292
294
295
297
299
300
299
297
296
297
297
298
300
302
304
305
306
307
309
311
313
315

Saturday 15

Waning Crescent 13%

03:16

14:15

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: 07:23, Set: 16:09, Transit: 11:45. Moon - Rise: 03:16, Set: 14:15. Civil Dark: 16:47 - 06:45. Nautical Dark: 17:28 - 06:04. Astro Dark: 18:07 - 05:24

Total Clouds (% Sky Obscured)

55
70
86
100
100
100
100
100
100
100
100
100
100
100
100
100
98
95
90

Low Clouds (% Sky Obscured)

45
45
45
43
45
47
48
57
63
68
72
75
77
85
91
100
96
91
87

Medium Clouds (% Sky Obscured)

51
52
57
68
82
90
100
100
99
98
99
99
100
100
100
100
88
67
40

High Clouds (% Sky Obscured)

48
63
73
85
92
96
100
100
100
100
100
100
100
100
100
100
76
50
38

ISS Passover

Visibility (miles)

9
9
9
9
9
8
7
6
6
6
7
5
4
2
4
6
8
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
Light Rain
Light Rain
Light Rain
Light Rain
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

12
25
29
28
52
69
85
78
73
65
74
79
80
85
93
95
95
87
75

Precipitation Amount (mm)

0
0
0
0
0
0.4
0.6
0.5
0.4
0
0.3
0.4
0.4
0.5
0.6
0.8
0.6
0.5
0.4

Wind Speed/Direction (mph)

8
9
8
8
7
6
5
5
4
4
5
6
7
9
9
10
10
10
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

10
11
11
11
11
11
11
11
10
10
10
10
10
10
10
10
10
9
9

Relative Humidity (%)

83
80
82
82
83
84
89
92
92
93
93
95
95
96
96
95
93
93
91

Pressure (mb)

1004
1004
1003
1003
1003
1003
1003
1003
1003
1003
1003
1002
1002
1002
1002
1001
1001
1001
1001

Ozone (du)

317
319
317
314
312
310
308
305
304
303
302
302
301
301
302
302
302
304
306

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

Generated: 09/11/25 11:28:40. Forecast: 09/11/25 to 15/11/25. Timezone: UTC+0.00