Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 27

Waning Gibbous 99%

16:46

08:48

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 OK
15 OK
16 OK
17 Good
18 OK
19 OK
20 OK
21 OK
22 OK
23 Bad

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)

86
87
89
94
100
100
98
100
92
57
43
49
43
40
34
27
27
11
14
18
28
31
24
62

Low Clouds (% Sky Obscured)

85
85
89
94
100
96
80
78
70
31
39
40
38
35
29
25
27
11
14
18
28
31
24
24

Medium Clouds (% Sky Obscured)

0
0
29
16
32
99
96
54
90
57
0
0
0
4
3
4
0
0
0
0
0
0
3
26

High Clouds (% Sky Obscured)

0
6
88
41
36
6
48
5
4
35
4
0
0
0
0
0
0
0
0
0
0
0
0
2

ISS Passover

Visibility (miles)

9
9
9
9
9
9
5
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
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

33
0
0
2
19
94
95
83
47
21
3
3
17
10
2
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0.8
0.9
0.5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

16
16
16
15
16
16
15
15
14
14
14
14
14
14
13
13
12
11
10
10
9
9
8
8

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
79
78
80
80
82
86
86
84
82
75
68
64
67
66
69
66
67
68
70
73
78
79
82

Pressure (mb)

1004
1004
1003
1003
1003
1003
1003
1004
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1017
1017
1018
1019
1020
1021

Ozone (du)

260
258
259
259
261
263
266
268
269
274
276
280
285
296
305
310
317
311
311
314
313
312
310
309

Wednesday 28

Waning Gibbous 95%

17:24

10:17

00 Bad
01 OK
02 OK
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 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 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)

53
42
32
53
96
95
63
100
61
67
74
67
69
90
58
73
67
43
54
54
58
56
56
58

Low Clouds (% Sky Obscured)

20
28
32
28
22
27
29
29
25
26
31
36
55
83
55
61
48
4
9
10
19
19
21
29

Medium Clouds (% Sky Obscured)

22
17
9
20
11
20
22
32
11
16
18
19
17
3
0
3
4
5
7
54
56
56
5
28

High Clouds (% Sky Obscured)

2
0
0
24
93
67
50
100
20
25
4
3
2
2
0
1
25
30
35
50
58
56
56
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
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
2
2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
84
84
84
84
82
82
84
82
78
75
71
66
64
68
73
74
77
81
83
84
85
88
88

Pressure (mb)

1022
1022
1023
1023
1023
1024
1024
1025
1025
1025
1025
1026
1026
1026
1026
1026
1026
1027
1027
1027
1027
1028
1028
1028

Ozone (du)

310
311
308
309
306
304
299
296
293
291
290
286
284
281
281
279
279
278
278
276
273
270
269
268

Thursday 29

Waning Gibbous 88%

18:20

11:35

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 OK
21 OK
22 OK
23 Bad

Sun - Rise: 06:50, Set: 16:38, Transit: 11:44. Moon - Rise: 18:20, Set: 11:35. Civil Dark: 17:13 - 06:15. Nautical Dark: 17:52 - 05:36. Astro Dark: 18:31 - 04:57

Total Clouds (% Sky Obscured)

58
59
53
63
75
100
100
100
100
99
70
59
90
99
99
99
75
80
72
58
43
48
46
81

Low Clouds (% Sky Obscured)

31
32
31
47
56
85
75
75
75
80
70
59
77
79
63
6
0
19
22
26
32
40
45
52

Medium Clouds (% Sky Obscured)

4
5
4
6
75
75
70
59
60
55
3
3
6
4
4
7
4
16
13
8
6
5
4
0

High Clouds (% Sky Obscured)

55
50
50
45
50
60
55
55
17
48
16
6
42
99
97
99
75
50
51
26
10
15
6
70

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
2
58
100
100
98
89
98
95
90
26
6
6
6
6
6
6
6
6
6
6
6
6

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

8
8
8
8
8
7
7
6
6
6
6
6
6
6
6
6
7
7
7
7
7
7
7
7

Relative Humidity (%)

90
90
90
90
90
90
88
88
85
80
72
67
65
62
61
63
69
72
76
77
81
81
82
82

Pressure (mb)

1028
1028
1028
1027
1027
1027
1027
1028
1028
1028
1028
1028
1028
1028
1027
1027
1027
1027
1027
1028
1028
1028
1027
1027

Ozone (du)

267
267
267
267
266
267
267
268
269
268
268
266
264
264
263
263
262
261
260
260
261
261
261
260

Friday 30

Waning Gibbous 79%

19:34

12:35

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
23 Bad

Sun - Rise: 06:52, Set: 16:36, Transit: 11:44. Moon - Rise: 19:34, Set: 12:35. Civil Dark: 17:11 - 06:17. Nautical Dark: 17:51 - 05:37. Astro Dark: 18:29 - 04:58

Total Clouds (% Sky Obscured)

68
66
65
83
87
97
96
87
82
98
97
95
69
79
71
67
62
60
59
62
62
64
78
62

Low Clouds (% Sky Obscured)

50
51
48
49
49
52
49
43
35
32
29
29
34
33
38
33
25
17
13
11
8
17
26
36

Medium Clouds (% Sky Obscured)

0
0
31
36
31
45
29
2
3
52
6
16
4
5
7
13
23
31
27
26
22
22
23
22

High Clouds (% Sky Obscured)

43
42
8
45
57
65
83
81
79
92
92
87
42
47
30
31
17
18
22
31
38
30
42
9

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 (%)

6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

6
6
6
7
7
7
6
7
7
6
6
6
6
6
6
7
7
7
7
7
7
7
7
6

Relative Humidity (%)

81
82
82
84
84
85
84
85
82
76
70
64
61
58
57
61
65
70
73
77
80
81
82
82

Pressure (mb)

1027
1027
1027
1026
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1028
1028
1028
1029
1029
1029

Ozone (du)

260
260
259
259
260
260
261
261
261
260
261
260
259
258
259
259
259
259
259
260
260
260
260
261

Saturday 31

Waning Gibbous 69%

20:59

13:16

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
23 Bad

Sun - Rise: 06:54, Set: 16:34, Transit: 11:44. Moon - Rise: 20:59, Set: 13:16. Civil Dark: 17:09 - 06:19. Nautical Dark: 17:49 - 05:39. Astro Dark: 18:28 - 05:00

Total Clouds (% Sky Obscured)

71
60
64
64
68
72
73
88
89
93
83
62
65
70
80
85
91
96
97
97
96
94
90
86

Low Clouds (% Sky Obscured)

41
47
58
63
68
72
73
80
75
67
64
53
54
60
61
61
64
68
73
79
88
91
90
86

Medium Clouds (% Sky Obscured)

13
6
3
5
7
8
7
5
4
4
4
5
5
6
6
4
5
5
12
23
31
29
28
16

High Clouds (% Sky Obscured)

31
18
23
29
35
48
43
45
31
39
33
8
20
32
44
57
69
81
81
81
77
62
49
34

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 (%)

6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6

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
3
5
4
15
18
19

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

8
8
8
8
8
8
8
8
8
9
9
10
12
12
12
12
12
12
13
9
9
9
9
9

Dew Point (°C)

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

Relative Humidity (%)

81
81
81
81
79
81
79
79
77
71
64
58
55
58
61
64
69
73
80
83
87
91
84
80

Pressure (mb)

1029
1029
1029
1029
1029
1029
1029
1030
1030
1030
1030
1030
1030
1030
1029
1029
1030
1030
1030
1030
1031
1031
1031
1032

Ozone (du)

261
260
260
260
261
262
262
262
262
264
264
264
264
264
264
265
265
265
265
265
266
267
268
268

Sunday 1

Third Quarter 57%

22:27

13:44

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
23 Bad

Sun - Rise: 06:56, Set: 16:32, Transit: 11:44. Moon - Rise: 22:27, Set: 13:44. Civil Dark: 17:08 - 06:20. Nautical Dark: 17:47 - 05:41. Astro Dark: 18:26 - 05:02

Total Clouds (% Sky Obscured)

88
91
95
96
97
98
97
85
81
82
78
79
90
75
70
65
60
65
59
58
58
60
54
47

Low Clouds (% Sky Obscured)

69
40
11
10
10
13
28
34
44
51
59
67
69
67
65
65
50
40
34
32
35
33
28
19

Medium Clouds (% Sky Obscured)

13
10
5
10
17
25
30
29
33
30
28
19
15
5
5
5
5
10
14
18
17
15
16
16

High Clouds (% Sky Obscured)

38
41
49
61
67
71
46
22
2
3
2
2
3
2
0
0
0
0
0
0
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 (%)

6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6

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 (%)

17
11
0
0
0
0
2
2
1
10
11
6
7
8
12
38
37
17
29
22
0
4
8
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
78
82
87
88
88
90
85
81
77
70
65
60
60
60
61
66
72
76
80
84
87
87
88

Pressure (mb)

1032
1032
1032
1033
1033
1033
1034
1034
1035
1035
1035
1035
1036
1036
1036
1036
1036
1037
1038
1038
1039
1039
1039
1040

Ozone (du)

269
270
270
270
271
271
272
271
270
269
270
270
270
271
272
273
274
274
274
275
276
278
279
280

Monday 2

Waning Crescent 46%

23:52

14:04

Sun - Rise: 06:57, Set: 16:30, Transit: 11:44. Moon - Rise: 23:52, Set: 14:04. Civil Dark: 17:06 - 06:22. Nautical Dark: 17:46 - 05:42. Astro Dark: 18:25 - 05:03

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

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

Generated: 27/10/26 00:58:17. Forecast: 27/10/26 to 02/11/26. Timezone: UTC+0.00