Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 13

Waxing Crescent 25%

12:18

18:40

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

Sun - Rise: 07:18, Set: 16:12, Transit: 11:45. Moon - Rise: 12:18, Set: 18:40. Civil Dark: 16:49 - 06:41. Nautical Dark: 17:30 - 06:00. Astro Dark: 18:10 - 05:20

Total Clouds (% Sky Obscured)

0
2
3
4
9
99
100
68
7
5
22
11
30
48
65
45
43
45
63
58
20
39
73
94

Low Clouds (% Sky Obscured)

0
0
0
0
3
0
0
0
0
0
0
0
0
22
25
0
0
0
51
48
0
14
18
18

Medium Clouds (% Sky Obscured)

0
0
0
0
0
19
0
0
0
1
3
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
2
2
2
5
98
100
68
6
4
22
11
30
36
43
45
40
45
27
22
20
34
61
92

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
1
23
100
99
91
53
18
4
2
1
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
3
3
3
3
3
3
3
3
3
4
4
4
4
4
4
5
6
7
7
5
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

73
76
76
77
77
77
77
78
78
80
80
81
81
80
77
69
58
55
56
57
62
69
75
79

Pressure (mb)

1019
1020
1020
1020
1020
1020
1020
1020
1020
1020
1019
1019
1019
1019
1019
1019
1018
1018
1017
1016
1015
1014
1014
1013

Ozone (du)

270
269
269
270
271
272
274
275
273
273
265
261
262
263
263
264
265
265
264
263
261
261
265
266

Saturday 14

Waxing Crescent 33%

12:42

19:48

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: 07:20, Set: 16:10, Transit: 11:45. Moon - Rise: 12:42, Set: 19:48. Civil Dark: 16:47 - 06:42. Nautical Dark: 17:28 - 06:01. Astro Dark: 18:09 - 05:22

Total Clouds (% Sky Obscured)

86
79
84
100
100
100
100
100
100
99
94
96
98
91
99
99
100
71
85
100
100
66
71
40

Low Clouds (% Sky Obscured)

0
14
8
9
15
23
18
39
53
42
46
52
43
80
52
82
73
67
73
72
63
38
38
36

Medium Clouds (% Sky Obscured)

0
0
25
20
15
25
100
75
57
17
15
96
86
8
15
27
78
69
85
100
100
24
71
7

High Clouds (% Sky Obscured)

83
74
80
100
100
100
100
100
100
88
42
48
90
89
99
96
25
30
37
100
86
35
18
4

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
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
Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
1
0
4
54
85
56
51
52
26
27
31
18

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.5
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

0
0
0
-0
-0
-1
-1
-1
-1
-1
1
1
1
1
2
2
4
4
6
7
7
6
7
4

Dew Point (°C)

1
1
1
1
1
1
1
1
1
0
1
1
2
1
2
3
5
8
9
9
8
7
8
7

Relative Humidity (%)

83
86
86
88
88
86
86
85
83
82
82
83
83
78
80
76
84
91
90
87
79
78
87
90

Pressure (mb)

1013
1012
1012
1011
1010
1008
1007
1006
1005
1004
1003
1002
1001
1000
1000
999
998
996
995
994
993
993
992
993

Ozone (du)

267
266
265
267
269
271
273
280
283
282
286
288
292
291
291
290
290
292
295
294
305
313
311
323

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 OK
08 OK
09 Good
10 Bad
11 Bad
12 Bad
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)

61
54
100
88
100
92
91
96
84
60
45
100
59
20
20
10
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

51
54
76
58
66
92
80
91
75
42
25
1
2
2
0
0
13
35
32
32
34
23
35
25

Medium Clouds (% Sky Obscured)

31
0
92
9
24
8
19
20
19
0
0
35
13
20
20
10
80
46
78
94
100
100
100
100

High Clouds (% Sky Obscured)

14
4
1
28
50
14
0
0
0
0
45
65
55
20
20
10
91
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
1
0
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
9
9
13
15
21
12
3
3
0
0
0
0
0
0
0
0
0
2
8
31

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)

12
14
15
15
16
16
16
16
11
12
12
10
7
7
7
8
9
9
9
8
7
5
5
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
88
90
84
87
84
79
71
75
93
94
85
83
84
86
80
73
66
61
59
60
64
65
63

Pressure (mb)

993
993
993
994
995
996
997
998
1000
1001
1002
1003
1004
1005
1006
1006
1006
1007
1006
1006
1005
1004
1004
1002

Ozone (du)

331
334
328
333
341
334
339
340
328
319
315
315
309
303
305
307
308
308
305
302
302
296
291
286

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
100
100
100
100
100
100
100
100
100
100
100
100
100
88
94
100
100

Low Clouds (% Sky Obscured)

50
73
100
97
95
92
94
97
100
100
100
100
87
100
100
100
100
100
97
71
66
85
97
99

Medium Clouds (% Sky Obscured)

100
100
100
98
100
100
99
98
74
99
38
100
100
100
100
100
100
100
99
89
62
45
30
18

High Clouds (% Sky Obscured)

100
100
100
100
100
100
79
58
36
58
44
70
70
70
72
100
100
100
96
92
67
58
57
100

ISS Passover

Visibility (miles)

8
2
2
2
0
0
0
2
9
9
5
5
9
6
4
9
2
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
Moderate Rain
Moderate Rain
Moderate Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None

Precipitation Probability (%)

95
95
95
95
95
95
95
95
95
95
85
73
95
87
78
95
95
72
47
32
29
16
12
23

Precipitation Amount (mm)

1.1
2.3
1
1.3
3.1
4
3.8
1.5
0.7
0.7
0.4
0.3
0.7
0.6
0.2
1.6
0.9
0.4
0
0
0
0
0
0

Wind Speed/Direction (mph)

8
8
10
12
16
15
14
14
15
14
14
13
12
12
13
15
21
18
15
16
16
14
11
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-1
2
3
3
3
4
5
6
8
8
8
7
6
6
5
3
4
3
4
3
3
3
3
2

Relative Humidity (%)

71
88
94
96
96
98
98
96
95
93
96
90
88
91
88
81
85
81
83
78
75
75
76
76

Pressure (mb)

1001
999
997
995
991
988
985
982
980
978
977
976
976
976
976
977
979
980
982
983
984
985
986
986

Ozone (du)

283
281
279
275
274
271
271
271
274
276
279
281
283
287
293
298
298
303
310
313
311
312
316
308

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
100
100
100
100
100
100
79
74
75
97
100
83
65
46
48
54
58
56
57
58
65
73
84

Low Clouds (% Sky Obscured)

93
63
52
72
75
73
70
71
68
59
59
54
34
37
43
48
54
58
56
57
58
65
73
66

Medium Clouds (% Sky Obscured)

26
90
100
100
100
100
100
40
29
27
73
93
67
53
42
48
54
58
56
57
58
65
73
84

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
62
62
62
83
100
39
37
40
37
37
30
31
31
31
26
25
30

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

24
16
5
15
31
22
51
64
77
76
73
62
23
16
0
6
9
10
42
57
68
66
65
60

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

6
6
5
5
5
5
6
5
5
5
4
4
4
4
4
4
5
5
6
6
6
6
5
5

Feels Like (°C)

2
3
2
3
3
4
3
3
4
4
4
2
2
1
2
2
3
3
3
4
4
3
3
2

Dew Point (°C)

3
3
4
4
4
4
5
5
4
4
4
3
3
3
3
3
4
4
5
4
4
5
4
3

Relative Humidity (%)

81
85
91
91
91
93
93
94
94
96
96
94
94
93
93
91
91
90
90
90
90
93
91
91

Pressure (mb)

987
986
986
986
985
984
984
984
984
984
985
986
986
989
990
991
991
991
991
992
992
992
993
993

Ozone (du)

309
313
314
322
332
339
340
335
332
329
329
331
333
336
338
340
344
347
351
348
345
343
340
338

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
88
88
76
65
53
52
51
56
60
65
75
85
85
85
85
85
85
85
85
75
67
70
72

Low Clouds (% Sky Obscured)

63
62
61
55
52
50
50
49
51
50
52
51
51
48
50
42
35
31
25
23
20
21
23
26

Medium Clouds (% Sky Obscured)

77
71
69
62
47
30
27
24
20
10
5
5
5
5
10
10
15
20
20
20
15
33
47
55

High Clouds (% Sky Obscured)

52
54
46
29
12
0
2
2
3
4
4
10
25
40
35
54
48
52
41
32
21
17
22
32

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

Very Light Rain
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 (%)

50
35
10
8
5
1
10
15
16
16
12
2
3
2
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.2
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
6
5
5
5
5
5
5
4
4
5
4
4
5
6
7
8
9
9
9
9
9

Chance of Frost

Temperature (°C)

4
3
3
2
2
2
1
1
1
1
1
1
1
2
2
2
3
4
5
5
5
5
5
4

Feels Like (°C)

1
-0
-1
-1
-1
-1
-1
-1
-1
-1
-1
-0
-0
-1
0
-1
-0
-0
-1
4
4
3
4
3

Dew Point (°C)

2
2
1
1
0
-0
-1
-1
-1
-1
-1
-1
-2
-2
-1
-2
-1
-1
-1
-0
0
1
1
1

Relative Humidity (%)

89
89
88
88
88
88
88
88
86
86
84
84
83
80
80
77
73
67
64
67
68
72
73
77

Pressure (mb)

994
994
995
996
996
997
998
999
999
1000
1001
1001
1002
1002
1003
1004
1004
1004
1004
1004
1004
1004
1004
1004

Ozone (du)

335
337
339
341
340
338
337
331
326
320
322
323
325
325
326
327
327
327
327
326
325
324
322
321

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

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)

76
82
91
91
89
89
89
90
90
89
90
91
88
83
79
75
73
69

Low Clouds (% Sky Obscured)

41
55
70
75
80
84
83
80
78
80
81
82
79
74
72
69
66
63

Medium Clouds (% Sky Obscured)

52
50
48
47
50
58
64
69
80
89
90
91
88
81
71
55
40
29

High Clouds (% Sky Obscured)

53
78
91
91
89
89
89
90
90
89
90
91
85
80
70
56
47
35

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

1
2
0
12
23
32
43
52
61
69
70
65
60
51
44
40
30
5

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.3
0.3
0.3
0.2
0.2
0
0
0
0
0

Wind Speed/Direction (mph)

9
10
11
11
12
13
15
15
16
17
17
18
18
16
15
15
14
13

Chance of Frost

Temperature (°C)

4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
5
6

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
73
69
63
68
71
75
76
77
79
80
82
83
82
83
83
82
80

Pressure (mb)

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

Ozone (du)

320
319
319
319
319
319
319
320
321
322
323
324
325
327
328
329
331
332

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

Generated: 13/11/26 18:09:47. Forecast: 13/11/26 to 19/11/26. Timezone: UTC+0.00