Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 26

Full Moon 100%

16:19

07:17

00 OK
01 OK
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: 06:45, 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)

22
39
53
63
100
100
100
100
100
100
100
100
100
100
82
88
73
75
70
72
81
78
87
89

Low Clouds (% Sky Obscured)

5
35
33
19
2
40
2
60
83
91
90
95
100
92
82
88
70
72
66
68
79
68
86
88

Medium Clouds (% Sky Obscured)

0
14
37
63
95
91
98
100
100
100
100
97
92
76
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

22
39
53
63
100
100
100
100
100
100
100
100
100
100
2
1
0
0
0
0
0
19
0
0

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

0
0
0
0
2
4
21
53
89
78
89
95
80
54
22
2
2
14
1
2
1
3
2
17

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.6
0.4
0.6
0.7
0.4
0.3
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

8
8
8
7
8
8
8
7
9
12
14
16
17
17
17
17
17
18
17
17
16
17
18
19

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

2
2
3
3
4
4
4
5
6
5
6
6
7
8
10
12
12
12
11
11
11
11
11
10

Dew Point (°C)

3
3
3
4
4
4
4
4
5
8
9
9
11
12
14
14
14
12
12
12
12
13
13
12

Relative Humidity (%)

75
78
78
79
79
77
74
75
77
88
91
91
93
95
96
92
87
80
83
83
84
85
87
82

Pressure (mb)

1013
1013
1013
1013
1013
1013
1012
1012
1011
1011
1010
1009
1008
1007
1006
1005
1005
1006
1006
1007
1007
1006
1006
1006

Ozone (du)

273
272
270
269
268
268
268
268
268
267
266
267
268
268
269
268
267
266
266
264
263
261
259
257

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

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)

92
100
98
100
99
100
100
100
100
77
63
96
67
70
31
24
11
14
13
14
24
23
18
18

Low Clouds (% Sky Obscured)

89
84
82
99
83
100
75
71
63
73
63
69
64
68
28
23
10
14
13
14
24
23
18
18

Medium Clouds (% Sky Obscured)

0
0
13
20
23
50
34
25
100
77
63
92
0
70
4
5
4
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

6
72
89
54
57
58
50
31
26
2
2
53
1
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
7
3
9
6
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
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

24
11
20
15
5
26
58
85
95
71
93
46
5
5
21
3
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0.3
0.4
0.8
0.4
0.9
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

18
19
21
20
21
20
20
20
20
18
16
17
17
14
14
15
14
12
10
10
10
10
10
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
89
83
83
82
80
83
83
86
90
84
89
83
75
75
74
75
78
78
78
80
82
84
85

Pressure (mb)

1005
1005
1004
1004
1003
1003
1003
1004
1004
1005
1006
1007
1008
1009
1010
1011
1013
1014
1016
1017
1018
1019
1020
1021

Ozone (du)

257
258
257
258
259
261
262
264
265
269
271
269
269
275
284
296
303
305
309
311
311
312
312
313

Wednesday 28

Waning Gibbous 95%

17:24

10:17

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

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)

17
18
75
82
100
42
46
44
70
82
60
41
65
59
51
30
24
2
9
16
22
22
19
17

Low Clouds (% Sky Obscured)

17
17
13
12
21
30
13
20
16
31
21
25
65
56
36
26
22
1
8
14
21
22
19
17

Medium Clouds (% Sky Obscured)

0
4
0
13
63
14
18
17
33
34
21
13
13
0
6
0
0
2
0
4
4
4
0
0

High Clouds (% Sky Obscured)

0
0
50
45
100
8
25
11
28
71
38
6
24
6
3
4
2
2
2
2
2
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 (%)

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
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
8
8
7
7
7
7
8
8
9
10
11
11
13
11
9
7
5
5
4
4
4
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
6
6
6
4
4
6
5
6
7
8
10
11
12
12
13
13
12
12
11
11
10
10
9

Dew Point (°C)

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

Relative Humidity (%)

85
85
87
88
87
87
88
88
84
77
73
70
66
64
64
66
72
77
80
81
83
84
87
90

Pressure (mb)

1021
1022
1023
1023
1024
1024
1025
1025
1026
1026
1026
1027
1027
1027
1027
1027
1027
1027
1028
1028
1028
1029
1029
1029

Ozone (du)

310
308
307
305
305
305
299
296
294
292
287
283
282
281
281
279
279
277
277
277
277
277
275
274

Thursday 29

Waning Gibbous 88%

18:20

11:35

00 OK
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 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
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)

18
20
31
55
88
100
56
65
65
67
89
75
78
72
64
80
90
100
97
100
100
97
91
67

Low Clouds (% Sky Obscured)

18
20
31
55
84
100
56
65
65
60
51
47
50
42
34
28
19
10
18
28
37
33
31
30

Medium Clouds (% Sky Obscured)

1
0
0
0
0
0
0
0
0
0
6
3
3
4
3
3
2
2
8
18
27
31
49
34

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
3
35
19
34
35
35
65
81
100
92
100
100
80
54
7

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
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
91
93
95
93
91
88
90
85
77
74
71
66
62
58
60
63
67
69
71
72
74
73
77

Pressure (mb)

1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1027
1027
1026
1026
1027
1027
1027
1027
1027
1026
1026

Ozone (du)

272
271
269
268
268
268
269
267
267
267
267
267
266
265
265
265
264
264
264
264
264
264
263
263

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 OK
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)

90
86
80
80
75
69
71
70
74
71
69
69
72
75
71
73
74
75
64
51
40
54
63
73

Low Clouds (% Sky Obscured)

29
32
36
36
36
39
39
39
36
34
34
31
36
42
47
56
66
75
61
47
30
41
52
63

Medium Clouds (% Sky Obscured)

56
79
62
78
65
67
67
64
68
71
69
69
70
65
60
40
45
45
34
31
25
35
51
45

High Clouds (% Sky Obscured)

49
8
15
56
60
55
41
40
40
40
50
49
54
55
40
29
16
10
10
4
0
1
2
3

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
1
1
1
3
3
3
6
9
6

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
84
85
85
85
85
88
88
87
81
77
75
71
71
71
70
74
75
77
79
81
84
84
85

Pressure (mb)

1026
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1024
1024
1025
1025
1025
1025
1026
1026
1026
1026

Ozone (du)

263
263
263
263
263
264
263
264
264
264
264
265
265
265
265
265
266
266
267
267
266
266
265
265

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 OK

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)

74
77
81
83
86
88
89
92
92
92
91
91
89
90
91
91
92
91
86
80
73
62
48
32

Low Clouds (% Sky Obscured)

55
47
38
57
75
88
89
92
90
87
85
82
84
87
90
90
92
91
80
64
51
42
30
15

Medium Clouds (% Sky Obscured)

43
47
54
54
49
44
51
65
71
76
80
87
88
90
91
91
92
90
75
62
52
35
16
0

High Clouds (% Sky Obscured)

3
4
3
1
1
1
6
18
35
41
49
54
62
69
76
59
45
28
19
10
1
1
1
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
8
6
3
0
2
4
7
8
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
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

10
10
2
3
1
0
6
18
29
37
38
35
46
51
51
50
47
42
32
23
10
6
3
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
90
93
95
96
96
96
96
98
98
95
95
92
90
92
92
89
87
84
84
83
82
84
87

Pressure (mb)

1026
1026
1026
1025
1025
1025
1025
1026
1026
1026
1026
1026
1026
1026
1026
1026
1027
1027
1028
1028
1029
1030
1030
1031

Ozone (du)

264
264
264
264
264
265
265
265
265
265
265
264
264
263
263
263
264
264
265
266
268
270
269
269

Sunday 1

Third Quarter 57%

22:27

13:44

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)

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: 26/10/26 00:49:02. Forecast: 25/10/26 to 01/11/26. Timezone: UTC+0.00