Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 28

Waning Gibbous 95%

17:24

10:17

01 Good
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 Good
18 OK
19 OK
20 Bad
21 Bad
22 Bad
23 Bad
00 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)

5
32
47
100
56
50
63
73
87
75
73
77
82
87
95
54
4
34
39
94
100
74
99
100

Low Clouds (% Sky Obscured)

5
28
28
26
24
25
24
15
25
28
37
43
70
82
90
43
1
17
22
25
30
30
30
27

Medium Clouds (% Sky Obscured)

5
4
47
28
10
32
20
20
28
29
35
45
27
21
15
5
3
0
4
4
3
5
4
4

High Clouds (% Sky Obscured)

5
32
47
100
40
7
30
35
35
2
9
3
4
3
1
0
2
30
30
89
100
58
98
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
3
2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
85
84
84
84
84
87
84
78
73
67
65
64
68
72
75
77
83
85
87
88
90
90
90

Pressure (mb)

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

Ozone (du)

308
307
309
311
310
307
304
301
297
294
292
291
288
286
282
280
279
278
277
275
272
270
268
267

Thursday 29

Waning Gibbous 88%

18:20

11:35

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

100
90
100
100
100
100
100
98
90
68
43
17
37
40
43
44
40
47
33
45
64
47
73
79

Low Clouds (% Sky Obscured)

31
39
40
52
57
51
50
42
36
19
25
7
34
29
27
39
35
37
6
8
30
39
52
52

Medium Clouds (% Sky Obscured)

4
6
46
58
100
100
99
97
66
62
6
4
4
4
3
0
0
3
0
4
0
0
0
0

High Clouds (% Sky Obscured)

100
77
100
100
100
100
100
93
51
38
15
6
2
9
25
25
30
35
29
45
57
12
37
55

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
1
0
0
0
0
0
0
0
0
0
0
0
0
9
100
100

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
1
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
3
3
3
3
3
3
4
4
5
5
4
4
5
5
6
5
5
5
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

7
7
7
7
7
7
7
7
7
7
8
8
9
9
9
8
7
7
7
8
9
8
8
8

Relative Humidity (%)

90
90
91
90
88
90
90
87
81
77
72
68
67
66
67
68
68
71
75
85
91
90
91
91

Pressure (mb)

1028
1028
1028
1028
1028
1029
1029
1029
1029
1030
1030
1030
1029
1029
1028
1028
1029
1029
1029
1029
1029
1029
1029
1029

Ozone (du)

268
267
268
267
267
267
269
270
269
269
268
266
266
266
267
267
266
265
265
264
264
263
263
262

Friday 30

Waning Gibbous 79%

19:34

12:35

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

64
53
58
58
49
48
39
37
38
63
41
42
65
62
54
60
41
59
78
88
93
92
91
92

Low Clouds (% Sky Obscured)

54
53
53
58
49
48
39
37
38
47
41
42
47
50
45
47
34
44
57
74
72
65
63
64

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

19
4
18
3
6
7
5
5
3
41
4
7
47
30
15
27
11
23
37
37
61
66
72
67

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 (%)

100
100
98
99
91
95
94
94
100
38
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
90
90
90
90
90
90
88
80
73
65
57
52
50
54
60
65
73
77
81
84
85
87
87

Pressure (mb)

1029
1029
1029
1029
1029
1029
1029
1030
1030
1030
1030
1029
1029
1029
1029
1029
1030
1030
1031
1031
1031
1031
1031
1031

Ozone (du)

263
263
263
262
263
262
262
262
262
261
261
261
261
262
263
263
262
264
265
265
265
265
266
266

Saturday 31

Waning Gibbous 69%

20:59

13:16

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
00 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
93
93
61
87
73
74
83
78
61
64
73
76
78
82
80
82
83
86
83
82
68
77
88

Low Clouds (% Sky Obscured)

69
69
68
61
72
71
66
57
53
48
48
51
47
50
54
55
56
48
44
41
37
37
37
40

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

32
57
56
21
48
31
27
32
26
5
5
17
20
25
33
25
32
41
57
62
61
44
56
74

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
88
88
90
88
90
91
91
84
76
67
61
57
55
59
66
73
80
83
85
87
88
88
88

Pressure (mb)

1031
1031
1031
1031
1032
1032
1032
1032
1032
1032
1032
1032
1032
1032
1032
1032
1032
1033
1033
1034
1034
1034
1034
1034

Ozone (du)

266
266
266
266
267
267
266
266
266
267
266
266
266
266
266
266
265
265
265
265
266
266
267
267

Sunday 1

Third Quarter 57%

22:27

13:44

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
00 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)

77
73
70
65
82
70
68
73
63
64
57
58
59
65
77
88
100
97
95
94
82
76
69
72

Low Clouds (% Sky Obscured)

46
57
59
62
69
69
68
63
58
58
50
48
48
45
62
81
100
96
89
80
60
37
16
16

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
3
7
13
29
36
45
48
42
40
26
12
5
3

High Clouds (% Sky Obscured)

61
55
39
19
39
18
11
19
9
12
6
12
18
17
14
9
7
8
4
3
4
4
5
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
2
3
2
10
12
6
9
9
5
4

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
90
88
90
90
91
91
88
80
71
65
63
69
75
80
84
87
90
88
87
87
90
91
95

Pressure (mb)

1034
1034
1034
1034
1035
1035
1035
1036
1036
1036
1036
1036
1036
1036
1036
1036
1037
1037
1037
1038
1038
1038
1038
1038

Ozone (du)

267
267
267
266
267
268
268
270
270
270
271
270
271
273
274
275
276
278
278
278
278
277
276
275

Monday 2

Waning Crescent 46%

23:52

14:04

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
00 OK

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)

69
66
70
74
77
82
73
76
75
68
67
75
63
59
55
51
55
48
46
43
48
45
42
40

Low Clouds (% Sky Obscured)

18
20
16
12
12
29
39
54
57
60
63
63
59
55
55
42
34
28
27
29
29
26
19
23

Medium Clouds (% Sky Obscured)

1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

2
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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 (%)

2
0
0
0
0
0
0
0
0
0
0
1
1
0
4
4
2
7
8
7
6
3
2
3

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
95
93
93
93
93
90
85
82
76
69
63
65
65
66
71
77
84
85
87
90
91
93
95

Pressure (mb)

1039
1039
1039
1039
1039
1039
1039
1040
1040
1040
1040
1039
1039
1039
1039
1039
1039
1039
1039
1039
1040
1039
1039
1039

Ozone (du)

274
273
273
274
275
277
277
278
278
280
281
282
282
282
282
281
281
280
281
283
284
283
282
281

Tuesday 3

Waning Crescent 34%

No Rise

14:19

Sun - Rise: 06:59, Set: 16:29, Transit: 11:44. Moon - Rise: No Rise, Set: 14:19. Civil Dark: 17:04 - 06:24. Nautical Dark: 17:44 - 05:44. Astro Dark: 18:23 - 05:05

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: 28/10/26 01:32:39. Forecast: 28/10/26 to 03/11/26. Timezone: UTC+0.00