Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 19

Waxing Crescent 46%

14:25

22:11

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 Good
22 OK
23 Good
00 Good

Sun - Rise: 05:52, Set: 20:15, Transit: 13:04. Moon - Rise: 14:25, Set: 22:11. Civil Dark: 20:52 - 05:16. Nautical Dark: 21:39 - 04:29. Astro Dark: 22:34 - 03:34

Total Clouds (% Sky Obscured)

77
82
86
89
100
100
100
99
80
78
71
73
63
68
100
83
66
45
47
69
13
22
12
5

Low Clouds (% Sky Obscured)

77
70
79
86
84
79
81
68
62
29
29
23
40
60
89
83
60
23
47
69
13
12
8
2

Medium Clouds (% Sky Obscured)

77
82
86
89
73
26
25
17
11
16
44
41
26
10
50
4
10
19
0
0
0
8
2
0

High Clouds (% Sky Obscured)

77
82
86
89
100
100
100
97
30
34
0
0
0
0
7
28
5
0
0
0
0
0
0
1

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

95
95
95
20
23
25
15
4
2
0
0
3
22
17
72
72
85
81
46
13
4
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

18
17
16
16
15
15
15
16
17
19
20
21
22
22
23
21
21
20
19
18
17
16
15
14

Feels Like (°C)

16
15
15
15
14
14
13
14
15
16
17
20
21
20
20
17
18
17
17
16
14
14
13
12

Dew Point (°C)

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

Relative Humidity (%)

57
59
71
81
82
82
83
83
71
57
49
42
37
33
32
37
42
36
41
46
50
56
63
71

Pressure (mb)

1009
1009
1008
1008
1008
1007
1007
1007
1007
1007
1006
1006
1005
1005
1004
1004
1004
1003
1003
1003
1004
1004
1005
1005

Ozone (du)

294
293
294
296
299
302
304
306
308
312
315
318
322
324
324
326
336
344
333
330
335
340
343
342

Thursday 20

First Quarter 56%

15:38

22:40

01 Good
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
00 Bad

Sun - Rise: 05:54, Set: 20:13, Transit: 13:04. Moon - Rise: 15:38, Set: 22:40. Civil Dark: 20:50 - 05:17. Nautical Dark: 21:36 - 04:31. Astro Dark: 22:31 - 03:36

Total Clouds (% Sky Obscured)

12
37
59
85
80
92
90
60
66
65
76
83
91
89
81
100
84
100
79
62
66
85
91
92

Low Clouds (% Sky Obscured)

5
26
53
71
64
65
67
55
28
40
66
81
90
84
80
85
73
66
75
44
51
84
89
88

Medium Clouds (% Sky Obscured)

3
9
15
66
68
83
56
12
36
20
27
22
11
24
18
10
29
17
17
23
26
12
10
26

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
2
5
26
2
70
0
70
12
13
0
0
0
1

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

0
0
0
0
0
0
0
0
10
45
51
34
34
53
57
53
63
84
76
72
51
27
5
2

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.2
0.3
0
0
0
0.3
0
0
0.5
0.6
0.7
0.5
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

14
13
13
13
13
13
13
14
17
18
19
19
20
20
20
20
20
19
18
16
15
15
14
14

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
84
86
87
87
84
84
75
64
52
50
50
44
45
45
47
45
49
59
71
80
80
75
76

Pressure (mb)

1005
1005
1004
1004
1004
1004
1004
1004
1004
1004
1004
1004
1004
1004
1005
1005
1005
1005
1006
1007
1008
1008
1009
1009

Ozone (du)

341
343
344
346
347
349
350
352
351
350
351
353
351
348
348
347
345
345
344
342
341
339
339
338

Friday 21

Waxing Gibbous 66%

16:43

23:18

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 OK
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 OK

Sun - Rise: 05:56, Set: 20:11, Transit: 13:03. Moon - Rise: 16:43, Set: 23:18. Civil Dark: 20:48 - 05:19. Nautical Dark: 21:34 - 04:33. Astro Dark: 22:27 - 03:39

Total Clouds (% Sky Obscured)

91
92
97
99
96
94
89
89
93
97
73
82
91
82
83
93
99
36
45
57
83
77
52
42

Low Clouds (% Sky Obscured)

87
86
83
79
85
83
76
69
65
64
50
46
73
65
62
64
50
25
23
23
16
18
19
20

Medium Clouds (% Sky Obscured)

31
27
32
33
29
27
25
59
77
89
44
26
27
24
23
28
29
2
8
18
22
17
11
7

High Clouds (% Sky Obscured)

2
10
2
16
25
26
30
30
41
51
25
38
33
22
17
35
66
2
4
6
31
38
21
19

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
1
0
1
0
0
0
0
0
0
9
8
4
14
6
12
13
4
10
11
3
2
1
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)

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

Chance of Frost

Temperature (°C)

14
13
13
13
12
12
12
13
14
15
16
18
19
19
19
19
19
18
17
15
14
13
12
12

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

75
76
77
79
81
83
83
79
70
60
52
45
41
41
41
40
39
38
38
46
54
62
71
79

Pressure (mb)

1010
1010
1010
1010
1011
1011
1011
1012
1012
1013
1013
1013
1013
1013
1013
1013
1013
1014
1014
1015
1016
1016
1017
1017

Ozone (du)

336
335
335
336
338
338
339
338
339
340
341
342
342
342
346
348
348
348
350
349
349
349
350
351

Saturday 22

Waxing Gibbous 75%

17:38

00:10

01 OK
02 OK
03 Good
04 OK
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: 05:57, Set: 20:09, Transit: 13:03. Moon - Rise: 17:38, Set: 00:10. Civil Dark: 20:45 - 05:21. Nautical Dark: 21:31 - 04:35. Astro Dark: 22:24 - 03:42

Total Clouds (% Sky Obscured)

31
22
14
34
58
95
99
98
87
67
57
54
95
94
94
89
86
84
75
66
58
52
51
55

Low Clouds (% Sky Obscured)

16
12
8
17
25
32
38
42
26
22
20
19
70
81
90
85
80
72
60
46
35
40
50
55

Medium Clouds (% Sky Obscured)

2
1
4
4
5
6
4
7
9
14
20
25
27
25
23
21
19
16
12
7
2
3
5
4

High Clouds (% Sky Obscured)

12
8
4
19
33
86
94
92
74
56
37
14
9
4
0
0
0
1
3
3
7
6
2
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 (%)

1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
2
2
1
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)

6
6
6
5
5
6
6
7
7
8
8
8
8
9
9
9
9
8
7
6
5
4
2
3

Chance of Frost

Temperature (°C)

11
11
10
10
10
10
10
12
14
16
17
19
20
20
20
20
19
19
18
17
16
15
14
14

Feels Like (°C)

11
10
10
10
10
9
9
10
11
14
16
17
19
17
16
16
16
16
16
15
14
13
13
12

Dew Point (°C)

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

Relative Humidity (%)

83
85
87
88
90
90
83
67
54
43
39
36
34
34
36
35
36
37
40
42
44
46
48
49

Pressure (mb)

1017
1017
1017
1018
1018
1018
1019
1019
1019
1020
1020
1020
1019
1020
1020
1020
1020
1020
1021
1021
1022
1022
1023
1023

Ozone (du)

352
352
352
352
352
353
354
354
354
354
354
354
355
355
355
355
355
353
351
351
350
349
348
348

Sunday 23

Waxing Gibbous 83%

18:21

No Set

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

Sun - Rise: 05:59, Set: 20:07, Transit: 13:03. Moon - Rise: 18:21, Set: No Set. Civil Dark: 20:43 - 05:23. Nautical Dark: 21:29 - 04:37. Astro Dark: 22:21 - 03:45

Total Clouds (% Sky Obscured)

50
50
47
40
6
7
16
26
35
46
58
67
63
63
54
34
36
38
42
39
35
25
15
6

Low Clouds (% Sky Obscured)

50
50
47
40
5
6
11
17
24
22
20
19
17
15
14
14
18
22
40
39
35
25
15
6

Medium Clouds (% Sky Obscured)

3
0
0
0
0
0
0
0
0
8
17
25
23
22
17
8
5
7
8
5
1
1
1
0

High Clouds (% Sky Obscured)

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

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

Chance of Frost

Temperature (°C)

13
13
13
12
12
11
11
13
15
17
19
20
21
22
22
23
22
21
21
19
18
16
15
14

Feels Like (°C)

11
11
11
11
11
11
11
13
15
18
19
20
21
22
22
22
22
22
22
18
18
17
16
16

Dew Point (°C)

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

Relative Humidity (%)

50
53
54
55
57
66
68
63
54
48
41
36
32
30
27
25
27
28
29
36
43
54
56
60

Pressure (mb)

1023
1023
1023
1023
1023
1023
1024
1024
1024
1024
1024
1024
1023
1023
1022
1022
1022
1022
1022
1023
1023
1023
1023
1023

Ozone (du)

348
348
348
349
348
348
347
347
347
347
348
348
348
348
347
347
347
347
347
346
346
345
344
343

Monday 24

Waxing Gibbous 90%

18:51

01:13

01 Good
02 Good
03 Good
04 OK
05 OK
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: 06:01, Set: 20:05, Transit: 13:03. Moon - Rise: 18:51, Set: 01:13. Civil Dark: 20:41 - 05:24. Nautical Dark: 21:26 - 04:39. Astro Dark: 22:18 - 03:48

Total Clouds (% Sky Obscured)

9
11
14
29
45
58
58
60
59
61
62
64
74
81
90
90
90
91
84
75
65
64
56
54

Low Clouds (% Sky Obscured)

9
11
14
29
45
58
58
60
59
61
62
64
68
72
76
75
76
81
64
45
25
19
13
8

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
6
13
14
14
13
11
12
8
8
8
7
10
10
24
31

High 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

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
3
1
0
4
1
0
0
0
0
0
0
0
0
0
0
0
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
5
5
4
4
4
5
5
6
7
7
8
9
8
7
7
7
7
7
7
7
7
6
5

Chance of Frost

Temperature (°C)

13
13
12
12
12
12
13
14
15
17
18
19
20
20
21
21
20
20
19
18
16
15
14
14

Feels Like (°C)

15
12
12
12
12
12
12
12
13
13
14
15
16
19
19
18
18
17
17
17
17
17
16
15

Dew Point (°C)

7
6
6
5
5
5
5
5
5
5
6
6
6
6
6
6
5
5
5
5
6
7
7
7

Relative Humidity (%)

65
64
65
65
63
62
59
55
51
46
44
41
38
38
37
37
37
37
38
43
50
58
61
64

Pressure (mb)

1023
1023
1023
1023
1023
1023
1023
1023
1022
1022
1022
1022
1021
1021
1020
1019
1019
1019
1019
1019
1019
1019
1019
1019

Ozone (du)

342
343
343
344
343
343
343
342
341
341
339
338
336
335
335
334
334
334
333
332
332
331
331
332

Tuesday 25

Waxing Gibbous 95%

19:14

02:25

Sun - Rise: 06:02, Set: 20:02, Transit: 13:02. Moon - Rise: 19:14, Set: 02:25. Civil Dark: 20:38 - 05:26. Nautical Dark: 21:23 - 04:41. Astro Dark: 22:14 - 03:50

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: 19/08/26 01:51:50. Forecast: 19/08/26 to 25/08/26. Timezone: UTC+1.00