Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 15

Waxing Crescent 43%

13:00

21:01

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 Good
10 Good
11 Good
12 OK
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad

Sun - Rise: 07:21, Set: 16:09, Transit: 11:45. Moon - Rise: 13:00, Set: 21:01. Civil Dark: 16:46 - 06:44. Nautical Dark: 17:27 - 06:03. Astro Dark: 18:08 - 05:23

Total Clouds (% Sky Obscured)

80
76
90
100
100
97
94
92
73
69
54
49
79
80
65
2
5
3
20
47
100
100
95
100

Low Clouds (% Sky Obscured)

52
76
86
97
90
83
90
92
67
56
44
41
33
4
13
1
1
0
0
24
33
4
2
1

Medium Clouds (% Sky Obscured)

25
40
90
47
46
93
75
6
0
0
0
0
0
0
0
0
0
0
0
3
47
69
95
100

High Clouds (% Sky Obscured)

4
2
14
64
100
42
35
2
0
0
0
0
65
62
59
2
3
2
20
25
100
100
68
100

ISS Passover

Visibility (miles)

9
9
9
8
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
46
41
21
3
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
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)

7
7
8
10
12
13
14
16
15
15
15
14
14
13
11
11
11
11
12
11
9
6
3
1

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
7
6
3
3
2
2
0
1
0
0
-1
-1
-2
-2
-2
1
2
2
2
3
3
2
2

Dew Point (°C)

7
7
7
7
6
6
5
4
3
2
2
1
0
-1
-3
-3
0
0
-1
-0
-1
0
0
-1

Relative Humidity (%)

93
95
96
96
96
93
90
83
78
78
82
82
80
76
69
68
76
68
63
62
60
66
72
73

Pressure (mb)

994
995
995
996
997
998
999
1000
1001
1002
1003
1004
1004
1005
1006
1006
1007
1007
1006
1006
1006
1006
1005
1004

Ozone (du)

319
315
313
306
307
312
315
320
321
306
306
310
307
307
306
303
303
295
290
291
292
288
287
282

Monday 16

Waxing Crescent 41%

13:14

22:14

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
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad

Sun - Rise: 07:23, Set: 16:08, Transit: 11:45. Moon - Rise: 13:14, Set: 22:14. Civil Dark: 16:45 - 06:46. Nautical Dark: 17:26 - 06:04. Astro Dark: 18:07 - 05:25

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
99
100
100
100
98
88
97
64
60
54
87
61
96
92
100
100
100

Low Clouds (% Sky Obscured)

12
95
77
93
91
91
100
99
100
100
100
96
81
80
44
42
52
42
34
29
31
65
64
76

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
99
98
91
91
16
12
8
10
10
5
1
18
90
24
100
46
100

High Clouds (% Sky Obscured)

100
95
100
100
100
100
99
50
40
40
35
0
0
0
0
0
5
54
7
52
86
88
100
82

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
3
0
0
0
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Moderate Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
Very Light Rain
Light Rain

Precipitation Probability (%)

22
68
89
95
95
95
95
95
95
95
95
67
10
13
3
2
13
3
0
0
9
45
62
83

Precipitation Amount (mm)

0
0
0.3
0.7
0.6
0.4
1.9
2.9
1.5
1.2
0.6
0.3
0
0
0
0
0
0
0
0
0
0
0.3
0.6

Wind Speed/Direction (mph)

4
5
7
10
12
14
16
17
17
14
11
11
15
17
19
20
20
23
21
20
18
17
14
14

Chance of Frost

Temperature (°C)

3
4
4
4
3
3
3
4
5
6
7
8
9
9
10
11
11
12
12
12
12
12
11
10

Feels Like (°C)

1
0
0
-1
-2
-3
-3
-1
-1
2
4
5
4
4
3
5
6
5
5
7
6
6
6
5

Dew Point (°C)

-1
-1
-1
-1
-1
0
1
4
5
6
7
8
7
7
6
7
7
7
7
7
7
7
7
7

Relative Humidity (%)

72
72
72
72
77
83
86
94
98
98
98
95
91
82
76
77
76
72
73
71
72
75
78
78

Pressure (mb)

1003
1003
1001
1000
997
995
992
989
987
985
983
982
982
982
982
983
983
984
984
984
984
984
983
982

Ozone (du)

277
274
270
268
266
267
266
264
262
261
261
264
269
274
278
286
294
290
294
296
296
298
302
303

Tuesday 17

First Quarter 53%

13:27

23:28

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
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad

Sun - Rise: 07:25, Set: 16:06, Transit: 11:46. Moon - Rise: 13:27, Set: 23:28. Civil Dark: 16:44 - 06:47. Nautical Dark: 17:25 - 06:06. Astro Dark: 18:06 - 05:26

Total Clouds (% Sky Obscured)

100
99
78
54
78
84
92
86
81
82
81
74
99
100
100
100
90
63
76
88
98
97
85
72

Low Clouds (% Sky Obscured)

71
81
75
54
47
63
76
69
69
62
64
62
60
57
60
91
80
63
58
56
48
41
45
40

Medium Clouds (% Sky Obscured)

100
94
78
0
20
11
70
70
63
65
65
65
98
80
100
84
60
63
64
84
88
96
53
26

High Clouds (% Sky Obscured)

100
93
50
2
52
60
82
63
60
60
69
71
97
100
100
100
34
23
45
69
82
86
26
43

ISS Passover

Visibility (miles)

4
3
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

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
None

Precipitation Probability (%)

90
75
6
2
0
0
1
13
26
3
1
5
9
14
13
8
7
10
14
25
14
23
15
16

Precipitation Amount (mm)

0.6
0.5
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
88
90
87
84
87
84
84
84
85
81
82
85
84
85
84
82
76
77
77
77
76
78
82

Pressure (mb)

982
981
981
982
982
983
983
984
984
984
984
984
984
984
985
985
985
986
985
985
985
985
985
985

Ozone (du)

305
306
314
312
303
301
300
303
307
309
311
314
317
319
319
321
321
322
320
322
326
330
331
334

Wednesday 18

Waxing Gibbous 63%

13:38

00:43

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
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad

Sun - Rise: 07:26, Set: 16:05, Transit: 11:46. Moon - Rise: 13:38, Set: 00:43. Civil Dark: 16:43 - 06:49. Nautical Dark: 17:24 - 06:07. Astro Dark: 18:05 - 05:27

Total Clouds (% Sky Obscured)

87
98
100
100
68
61
66
100
83
97
100
100
100
100
100
100
100
100
99
99
98
98
97
97

Low Clouds (% Sky Obscured)

44
51
57
70
58
61
66
82
67
53
51
77
84
86
85
76
69
62
74
83
92
92
91
91

Medium Clouds (% Sky Obscured)

58
91
97
88
41
20
35
88
54
94
100
100
100
79
71
98
96
94
95
96
97
83
91
91

High Clouds (% Sky Obscured)

71
91
100
100
57
60
54
50
28
42
88
100
100
100
100
100
100
100
77
53
16
31
50
58

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
8
6
3

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
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

16
16
4
1
0
3
12
36
25
32
27
36
54
53
44
37
38
38
47
58
82
90
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0.4
0.9
1.4

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

9
9
9
8
8
8
8
8
8
8
8
8
8
8
8
9
9
10
10
10
10
10
9
9

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
87
85
81
85
88
90
90
87
90
93
94
95
95
93
93
93
93
93
93
91
95
95
95

Pressure (mb)

985
985
985
985
985
985
985
985
985
985
985
985
985
985
985
986
986
987
987
987
988
988
989
991

Ozone (du)

336
338
342
342
343
347
349
344
340
339
339
348
346
347
348
353
351
347
346
343
342
343
340
340

Thursday 19

Waxing Gibbous 73%

13:50

01:59

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

Sun - Rise: 07:28, Set: 16:04, Transit: 11:46. Moon - Rise: 13:50, Set: 01:59. Civil Dark: 16:42 - 06:50. Nautical Dark: 17:23 - 06:09. Astro Dark: 18:04 - 05:29

Total Clouds (% Sky Obscured)

97
97
98
95
92
89
91
93
96
91
78
48
57
63
65
69
70
74
64
49
34
35
34
29

Low Clouds (% Sky Obscured)

93
94
96
90
85
78
72
66
63
61
51
26
41
44
37
28
23
19
17
12
9
12
15
19

Medium Clouds (% Sky Obscured)

92
88
86
89
79
57
29
58
25
17
12
4
55
42
30
27
24
25
19
14
8
6
3
0

High Clouds (% Sky Obscured)

55
9
45
55
60
52
8
0
0
8
13
19
43
22
0
4
7
11
8
4
0
0
0
0

ISS Passover

Visibility (miles)

3
3
4
5
7
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
None
None
None
None
None
None
None
None
None
None
Light Rain
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
95
94
74
48
22
9
9
3
0
0
0
51
50
55
42
29
12
10
8
0
0
0
0

Precipitation Amount (mm)

1.6
0.9
0.8
0.5
0
0
0
0
0
0
0
0
0
0
0.4
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

3
3
3
3
2
2
2
2
1
1
-0
-1
-0
2
2
2
2
2
2
5
4
4
3
4

Dew Point (°C)

7
7
6
5
4
4
3
2
2
2
1
1
0
3
3
3
4
4
4
4
3
4
3
2

Relative Humidity (%)

93
90
88
87
84
82
81
78
79
82
80
82
83
83
85
85
82
79
75
77
77
79
79
82

Pressure (mb)

992
993
995
996
997
999
999
1000
1001
1002
1003
1004
1005
1001
1002
1004
1005
1006
1008
1009
1010
1011
1012
1014

Ozone (du)

337
337
333
331
333
337
336
337
337
339
339
341
341
341
341
341
339
337
335
334
333
332
332
332

Friday 20

Waxing Gibbous 82%

14:03

03:19

18 OK
19 Good
20 Good
21 Good
22 OK
23 OK
00 OK
01 OK
02 OK
03 OK
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

Sun - Rise: 07:30, Set: 16:03, Transit: 11:46. Moon - Rise: 14:03, Set: 03:19. Civil Dark: 16:41 - 06:52. Nautical Dark: 17:22 - 06:10. Astro Dark: 18:03 - 05:30

Total Clouds (% Sky Obscured)

20
13
7
14
20
26
28
31
37
47
58
74
84
85
86
86
86
86
88
90
88
88
94
100

Low Clouds (% Sky Obscured)

17
13
7
10
10
10
19
29
37
41
42
42
42
39
41
41
42
45
39
36
34
35
41
46

Medium Clouds (% Sky Obscured)

0
0
0
8
13
15
12
10
7
5
3
3
4
4
10
10
15
20
20
20
15
22
28
39

High Clouds (% Sky Obscured)

0
0
0
0
0
0
1
1
1
2
3
9
24
40
38
57
52
57
59
63
66
72
84
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
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
1
4
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
6
5
5
4
4
4
4
5
5
5
5
6
6
5
6
6
7
8
8
8
9
9
10

Chance of Frost

Temperature (°C)

4
3
3
2
2
1
1
1
1
1
1
1
1
2
3
3
5
7
8
9
9
10
9
9

Feels Like (°C)

4
1
0
0
0
-1
-1
-1
-1
-1
-1
-1
-1
-0
-0
0
1
2
3
7
7
8
7
7

Dew Point (°C)

2
1
0
-1
-1
-2
-2
-2
-2
-2
-2
-2
-2
-1
-1
-0
1
1
2
3
3
4
5
6

Relative Humidity (%)

83
83
83
83
83
81
81
83
83
84
83
83
83
83
80
77
72
67
63
64
66
68
73
78

Pressure (mb)

1015
1016
1017
1018
1019
1019
1020
1020
1020
1021
1021
1021
1021
1021
1021
1021
1020
1020
1019
1019
1018
1017
1017
1016

Ozone (du)

332
333
335
337
336
336
335
336
337
338
336
334
332
327
321
316
320
323
327
325
323
321
323
324

Saturday 21

Waxing Gibbous 90%

14:20

04:44

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

Sun - Rise: 07:31, Set: 16:02, Transit: 11:46. Moon - Rise: 14:20, Set: 04:44. Civil Dark: 16:40 - 06:53. Nautical Dark: 17:21 - 06:12. Astro Dark: 18:02 - 05:32

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
96
92
90
91
94
96
93
91
89

Low Clouds (% Sky Obscured)

54
62
71
76
82
86
85
83
81
74
67
63
52
43
32
39
45
52

Medium Clouds (% Sky Obscured)

56
69
81
87
91
95
90
83
74
50
29
4
14
27
40
58
65
66

High Clouds (% Sky Obscured)

100
100
100
100
100
100
85
69
54
60
63
66
66
69
70
62
56
47

ISS Passover

Visibility (miles)

9
9
8
8
7
6
5
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

Precipitation Type

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

Precipitation Probability (%)

14
24
33
49
66
79
87
94
91
71
44
2
3
4
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0.3
0.5
0.5
0.6
0.6
0.3
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
87
87
90
91
93
95
93
93
91
93
95
94
93
90
87
84
81

Pressure (mb)

1016
1015
1014
1013
1013
1012
1011
1010
1010
1010
1010
1010
1010
1011
1011
1012
1012
1012

Ozone (du)

325
323
322
320
318
317
315
315
316
316
314
312
310
309
308
307
309
310

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

Generated: 15/11/26 18:27:33. Forecast: 15/11/26 to 21/11/26. Timezone: UTC+0.00