Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 21

Waxing Gibbous 87%

16:22

02:49

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

Sun - Rise: 07:38, Set: 17:52, Transit: 12:45. Moon - Rise: 16:22, Set: 02:49. Civil Dark: 18:26 - 07:04. Nautical Dark: 19:05 - 06:24. Astro Dark: 19:44 - 05:46

Total Clouds (% Sky Obscured)

9
24
49
63
94
92
84
77
57
39
36
40
38
36
33
32
27
82
83
100
97
100
100
100

Low Clouds (% Sky Obscured)

9
24
49
63
90
69
47
39
50
31
27
30
29
28
26
21
15
28
5
2
2
57
81
91

Medium Clouds (% Sky Obscured)

9
24
49
63
82
70
60
60
0
0
0
0
0
0
0
2
2
56
67
100
97
100
97
100

High Clouds (% Sky Obscured)

0
2
2
35
30
25
0
0
0
0
0
0
0
2
2
8
12
70
62
67
13
55
95
100

ISS Passover

Visibility (miles)

9
9
9
2
3
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
4

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

Precipitation Probability (%)

9
44
95
95
95
29
27
5
3
0
0
0
2
3
1
0
2
1
0
0
2
26
61
87

Precipitation Amount (mm)

0
0
0.6
0.9
0.8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.6

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

3
4
2
4
4
4
3
4
4
4
6
7
7
8
8
9
9
10
11
10
7
6
6
5

Dew Point (°C)

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

Relative Humidity (%)

82
85
82
91
93
93
85
85
88
88
87
78
71
63
60
58
57
59
65
71
71
70
69
77

Pressure (mb)

1008
1008
1007
1006
1005
1005
1005
1005
1006
1007
1008
1009
1010
1010
1010
1010
1010
1010
1010
1010
1009
1008
1007
1005

Ozone (du)

309
308
307
307
309
309
311
312
316
315
313
312
308
305
302
298
294
292
291
290
290
291
292
292

Thursday 22

Waxing Gibbous 94%

16:33

04:06

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 Bad
21 Bad
22 Bad

Sun - Rise: 07:40, Set: 17:50, Transit: 12:45. Moon - Rise: 16:33, Set: 04:06. Civil Dark: 18:24 - 07:05. Nautical Dark: 19:03 - 06:26. Astro Dark: 19:42 - 05:47

Total Clouds (% Sky Obscured)

100
100
100
100
85
90
56
74
100
100
100
100
100
100
100
100
100
100
98
96
92
95
94
91

Low Clouds (% Sky Obscured)

93
97
97
100
65
75
43
34
94
98
98
96
82
90
100
100
93
96
94
92
89
94
88
86

Medium Clouds (% Sky Obscured)

100
100
100
44
36
35
0
50
81
91
100
100
100
100
100
78
43
46
69
88
77
86
85
73

High Clouds (% Sky Obscured)

100
100
100
55
50
13
0
0
100
100
71
45
91
100
100
77
98
66
11
36
45
2
4
42

ISS Passover

Visibility (miles)

7
3
2
4
9
8
9
9
9
6
2
1
1
2
8
9
9
9
9
9
9
6
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
Moderate Rain
Light Rain
Light Rain
None
None
None
Light Rain
Light Rain
Moderate Rain
Moderate Rain
Moderate Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
Very Light Rain
Very Light Rain
None
None

Precipitation Probability (%)

95
95
95
95
72
33
19
56
95
95
95
95
95
95
95
90
69
38
23
22
49
47
2
1

Precipitation Amount (mm)

1.2
2.2
2.6
0.8
0.5
0
0
0
0.4
2
3
5.1
5.1
1.6
0.4
0.5
0.3
0
0
0
0.3
0.3
0
0

Wind Speed/Direction (mph)

13
14
16
17
17
17
15
15
15
15
15
15
14
13
12
19
23
25
26
25
24
23
24
23

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
7
6
7
7
8
8
8
8
6
6
5
5
6
7
2
2
0
-1
-1
-1
0
-1
0

Dew Point (°C)

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

Relative Humidity (%)

91
93
91
92
84
86
80
80
80
86
93
93
95
93
92
84
87
88
84
79
84
85
77
69

Pressure (mb)

1004
1002
1000
998
996
995
993
992
990
989
988
987
988
989
991
993
995
998
999
1001
1003
1004
1006
1007

Ozone (du)

293
293
293
298
300
302
308
312
305
303
301
301
301
302
304
306
309
310
309
308
309
310
313
315

Friday 23

Waxing Gibbous 91%

16:46

05:26

23 Bad
00 Bad
01 Bad
02 OK
03 Good
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 Bad

Sun - Rise: 07:41, Set: 17:48, Transit: 12:44. Moon - Rise: 16:46, Set: 05:26. Civil Dark: 18:22 - 07:07. Nautical Dark: 19:01 - 06:28. Astro Dark: 19:40 - 05:49

Total Clouds (% Sky Obscured)

81
74
51
22
12
91
99
86
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

69
65
48
14
3
0
1
3
3
0
0
17
52
62
89
87
88
90
93
93
91
88
87
86

Medium Clouds (% Sky Obscured)

78
68
8
8
4
3
10
17
31
43
97
99
99
98
100
100
100
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

10
2
0
2
5
83
98
84
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
7
6
3
2
2
4
4
5

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
Light Rain
Light Rain
Light Rain
Light Rain
Moderate Rain
Moderate Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
1
18
50
85
95
95
95
95
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.5
1.1
1.7
2.2
3.8
3.8
1.3
1.2
1.2
0.8

Wind Speed/Direction (mph)

22
21
20
20
18
16
14
12
10
9
9
9
11
12
13
14
15
18
19
20
18
17
18
18

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-1
-1
-0
0
1
1
0
1
1
1
3
4
5
5
6
6
6
5
7
7
7
9
10
11

Dew Point (°C)

2
2
2
2
2
2
2
3
3
3
4
4
5
6
7
8
9
10
11
11
12
13
14
14

Relative Humidity (%)

66
68
72
72
71
72
76
82
83
82
81
78
77
78
82
85
88
91
93
93
93
95
93
93

Pressure (mb)

1008
1009
1010
1011
1011
1012
1012
1013
1013
1013
1013
1013
1012
1011
1010
1008
1006
1003
1001
999
997
996
995
994

Ozone (du)

317
319
324
322
318
314
313
312
308
307
304
301
300
297
295
291
288
287
285
283
281
281
281
281

Saturday 24

Waxing Gibbous 98%

16:00

05:50

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

Sun - Rise: 06:43, Set: 16:45, Transit: 11:44. Moon - Rise: 16:00, Set: 05:50. Civil Dark: 17:20 - 06:09. Nautical Dark: 17:59 - 05:29. Astro Dark: 18:38 - 04:50

Total Clouds (% Sky Obscured)

100
100
81
42
46
44
12
58
15
18
12
15
15
17
18
18
13
8
2
22
37
86
100
100

Low Clouds (% Sky Obscured)

84
83
71
42
5
10
11
58
15
18
12
15
15
17
18
18
13
7
2
2
0
3
3
0

Medium Clouds (% Sky Obscured)

100
100
81
6
46
44
0
0
0
3
0
0
0
0
0
0
0
0
0
0
0
0
12
23

High Clouds (% Sky Obscured)

100
100
78
42
45
0
0
0
0
0
0
0
0
0
0
0
0
0
0
20
37
84
100
100

ISS Passover

Visibility (miles)

9
4
3
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
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
95
89
6
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.8
0.8
0.8
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)

19
20
21
20
18
19
19
20
20
20
20
21
21
22
21
20
18
16
13
11
10
10
10
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

11
10
10
5
4
3
2
3
3
4
4
5
6
6
6
6
7
6
6
6
6
5
3
3

Dew Point (°C)

14
13
13
7
6
4
4
4
5
5
5
5
5
4
4
4
4
3
3
3
3
3
3
3

Relative Humidity (%)

93
93
93
76
80
70
72
73
73
76
72
66
63
58
57
57
58
60
61
65
70
73
74
74

Pressure (mb)

994
993
993
995
996
997
999
1000
1001
1002
1004
1005
1006
1007
1008
1009
1010
1012
1013
1014
1015
1016
1016
1016

Ozone (du)

281
281
280
281
283
285
286
287
290
290
295
301
303
301
292
287
284
285
283
283
281
278
275
274

Sunday 25

Waxing Gibbous 100%

16:19

07:17

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 Bad
21 Bad
22 Bad

Sun - Rise: 06:45, Set: 16:44, Transit: 11:44. Moon - Rise: 16:19, Set: 07:17. Civil Dark: 17:18 - 06:10. Nautical Dark: 17:58 - 05:31. Astro Dark: 18:36 - 04:52

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
95
94
88
85
84
86
91
95

Low Clouds (% Sky Obscured)

1
3
40
75
16
12
14
18
91
94
91
87
81
78
76
73
80
86
86
85
84
86
91
94

Medium Clouds (% Sky Obscured)

35
36
49
94
95
98
100
100
99
99
96
94
91
65
39
13
8
5
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
100
100
100
100
100
99
99
99
100
85
100
100
87
74
51
36
16
0
0
0
0
6
11

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
4
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
Very Light Rain
Light Rain
Light Rain
None
Very Light Rain
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
5
11
16
28
47
68
95
87
42
61
31
18
18
15
6
8
9
2
6
8

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.2
0.8
0.5
0
0.3
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

10
9
9
9
9
10
9
9
10
13
16
16
17
17
17
17
17
17
17
16
16
16
16
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

3
3
3
4
4
4
4
4
5
5
5
6
6
7
7
7
8
9
9
9
12
12
12
12

Dew Point (°C)

3
4
4
4
4
4
4
4
5
6
7
8
9
10
11
13
15
14
14
13
13
13
13
13

Relative Humidity (%)

75
78
78
75
73
74
74
75
75
80
77
85
87
87
89
89
90
89
89
87
87
87
86
85

Pressure (mb)

1016
1016
1016
1016
1015
1015
1015
1014
1013
1012
1012
1011
1010
1009
1009
1008
1008
1008
1008
1008
1008
1008
1008
1008

Ozone (du)

274
272
271
269
266
265
262
259
258
257
256
255
257
260
263
265
267
267
267
267
267
266
265
264

Monday 26

Full Moon 99%

16:46

08:48

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 OK
18 OK
19 OK
20 OK
21 OK
22 OK

Sun - Rise: 06:47, Set: 16:42, Transit: 11:44. Moon - Rise: 16:46, Set: 08:48. Civil Dark: 17:16 - 06:12. Nautical Dark: 17:56 - 05:33. Astro Dark: 18:35 - 04:54

Total Clouds (% Sky Obscured)

98
86
71
57
70
85
100
98
95
92
85
69
44
46
55
67
57
46
34
36
36
35
30
26

Low Clouds (% Sky Obscured)

96
80
61
43
61
79
94
91
88
82
79
69
44
46
55
67
57
46
34
36
36
35
30
26

Medium Clouds (% Sky Obscured)

0
2
6
10
10
10
10
10
7
0
1
1
2
12
26
44
32
17
0
0
0
0
0
0

High Clouds (% Sky Obscured)

12
15
14
16
13
10
8
25
38
47
32
19
16
13
10
8
6
4
0
0
0
0
0
0

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

3
8
6
3
21
38
61
59
48
21
30
55
80
80
69
54
43
29
2
0
1
0
1
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

17
17
18
19
20
20
20
20
20
20
21
19
18
18
17
16
16
14
12
10
10
10
10
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
80
82
83
82
83
86
87
83
82
79
82
84
86
84
84
84
81
80
78
80
81
82
81

Pressure (mb)

1008
1007
1007
1006
1005
1005
1005
1004
1005
1006
1006
1007
1008
1008
1009
1010
1011
1012
1013
1015
1015
1016
1017
1018

Ozone (du)

264
263
264
265
265
266
266
266
267
268
269
269
269
269
278
287
295
299
303
306
308
310
312
308

Tuesday 27

Waning Gibbous 95%

17:24

10:17

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

Sun - Rise: 06:49, Set: 16:40, Transit: 11:44. Moon - Rise: 17:24, Set: 10:17. Civil Dark: 17:15 - 06:14. Nautical Dark: 17:54 - 05:34. Astro Dark: 18:33 - 04:55

Total Clouds (% Sky Obscured)

24
16
9
7
18
28
38
35
33
42
63
67
58
67
73
81
87
93
100

Low Clouds (% Sky Obscured)

24
16
7
2
14
26
38
33
28
27
28
34
34
45
51
52
46
40
38

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

0
0
1
1
1
1
1
7
14
20
16
14
10
17
27
37
45
54
62

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
0
0
0
0
0
0
0
0
0
0
0
0
3
4
3

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

7
6
6
6
6
6
6
6
6
6
5
6
6
6
11
11
11
10
10

Dew Point (°C)

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

Relative Humidity (%)

80
78
82
84
87
87
85
84
82
78
77
76
74
70
73
73
74
76
78

Pressure (mb)

1018
1019
1019
1020
1020
1021
1021
1021
1022
1023
1023
1023
1024
1024
1024
1024
1024
1024
1025

Ozone (du)

303
299
296
293
291
287
283
279
277
275
272
271
269
268
268
268
268
267
266

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

Generated: 21/10/26 23:40:01. Forecast: 21/10/26 to 27/10/26. Timezone: UTC+1.00