Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 20

Waxing Crescent 21%

07:58

01:23

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
01 Bad
02 Bad

Sun - Rise: 04:59, Set: 20:55, Transit: 12:57. Moon - Rise: 07:58, Set: 01:23. Civil Dark: 21:38 - 04:16. Nautical Dark: 22:39 - 03:15. Astro Dark: 00:43 - N/A

Total Clouds (% Sky Obscured)

84
86
76
90
68
78
70
90
85
100
80
96
100
99
100
100
100
80
59
76
99
100
74
98

Low Clouds (% Sky Obscured)

81
70
67
75
54
78
56
65
50
83
71
71
14
36
62
36
17
0
0
0
0
0
0
55

Medium Clouds (% Sky Obscured)

10
1
44
74
42
6
26
45
32
45
11
16
21
24
23
4
0
0
7
7
9
16
6
12

High Clouds (% Sky Obscured)

1
0
19
0
0
0
0
0
0
0
0
45
82
95
100
100
100
80
59
76
99
86
69
96

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 (%)

8
6
4
2
0
2
13
9
22
25
26
9
5
7
6
2
1
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)

11
11
11
13
13
13
16
14
16
16
16
16
18
17
15
15
13
11
10
9
7
6
6
5

Chance of Frost

Temperature (°C)

12
12
12
11
12
12
14
14
15
16
17
17
19
18
17
17
16
16
15
13
13
12
11
11

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
87
76
76
76
79
74
75
66
73
69
66
56
59
65
73
78
80
84
86
89
92
93
95

Pressure (mb)

1011
1012
1013
1014
1014
1015
1016
1017
1017
1018
1018
1018
1019
1019
1020
1020
1021
1022
1023
1024
1024
1024
1025
1025

Ozone (du)

384
379
371
370
369
368
366
362
361
353
350
347
345
344
342
342
341
341
343
343
342
341
340
336

Thursday 21

Waxing Crescent 31%

09:28

01:46

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

Sun - Rise: 04:58, Set: 20:56, Transit: 12:57. Moon - Rise: 09:28, Set: 01:46. Civil Dark: 21:40 - 04:14. Nautical Dark: 22:41 - 03:13. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

92
83
91
94
96
94
95
97
100
95
88
100
99
86
36
42
10
49
95
88
13
40
33
1

Low Clouds (% Sky Obscured)

73
65
75
76
55
59
68
56
60
57
52
44
27
9
11
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

19
20
51
40
76
42
36
53
32
21
15
18
5
3
3
2
3
14
44
3
5
15
15
0

High Clouds (% Sky Obscured)

73
58
59
34
66
38
73
85
100
90
79
100
85
85
27
34
10
49
80
55
13
30
13
1

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
25
13
0
1
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
1
1
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
6
7
7
8
9
10
10
11
11
9
9
9
9
8
8
8
6
6
6
5
5
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

9
9
9
9
9
9
10
12
14
15
17
19
19
19
20
20
20
18
16
16
16
14
13
14

Dew Point (°C)

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

Relative Humidity (%)

96
96
96
95
88
80
71
67
62
60
59
58
56
56
57
61
65
72
76
82
86
89
89
89

Pressure (mb)

1025
1025
1025
1026
1026
1026
1026
1027
1027
1026
1026
1026
1026
1025
1025
1025
1025
1025
1026
1026
1026
1026
1025
1025

Ozone (du)

337
337
339
339
338
335
335
336
336
335
335
334
335
335
335
333
331
329
330
332
333
335
340
341

Friday 22

Waxing Crescent 42%

10:55

02:03

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

Sun - Rise: 04:57, Set: 20:57, Transit: 12:57. Moon - Rise: 10:55, Set: 02:03. Civil Dark: 21:41 - 04:13. Nautical Dark: 22:44 - 03:11. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

1
8
91
23
87
10
8
7
10
4
36
75
76
73
70
94
69
92
98
100
81
97
99
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
3
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
3
0
0
20
19
22
17
23
32
36
38
33

High Clouds (% Sky Obscured)

1
7
67
23
60
10
8
7
10
4
36
62
75
73
70
92
57
61
96
100
74
97
99
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
0
0
0
0
0
0
1
0
0
6
7
9

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

Chance of Frost

Temperature (°C)

13
13
12
13
15
17
19
21
23
24
25
26
26
26
25
25
23
22
20
19
18
17
17
17

Feels Like (°C)

14
13
13
14
14
16
19
20
22
23
24
24
24
25
25
24
22
22
19
18
17
18
17
17

Dew Point (°C)

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

Relative Humidity (%)

89
90
90
89
84
77
71
66
61
58
54
53
51
52
56
60
64
72
77
82
86
88
88
87

Pressure (mb)

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

Ozone (du)

339
339
339
338
339
338
339
339
339
339
340
339
339
338
338
337
337
337
336
338
339
340
340
339

Saturday 23

First Quarter 53%

12:19

02:16

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
01 Bad
02 Bad

Sun - Rise: 04:55, Set: 20:59, Transit: 12:57. Moon - Rise: 12:19, Set: 02:16. Civil Dark: 21:43 - 04:12. Nautical Dark: 22:46 - 03:09. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
98
100
89
80
73
82
91
100
89
84
66
65
42
40
45
49
50
51
49
60
53
55

Low Clouds (% Sky Obscured)

0
0
0
2
0
2
2
43
30
58
49
54
54
51
42
40
44
46
48
45
39
39
37
35

Medium Clouds (% Sky Obscured)

38
49
79
90
83
77
59
64
62
64
58
49
37
38
13
11
12
17
14
14
14
11
6
3

High Clouds (% Sky Obscured)

100
100
97
99
73
45
18
45
68
90
89
84
66
54
28
3
3
3
2
4
3
24
20
18

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

13
24
24
25
39
48
58
37
20
1
13
61
58
55
56
55
47
27
24
29
10
3
6
7

Precipitation Amount (mm)

0
0
0
0
0
0
0.4
0
0
0
0
0.5
0.3
0.3
0.3
0.3
0.2
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

16
16
16
16
17
18
19
20
21
23
24
24
24
24
24
24
23
22
21
20
19
18
17
17

Feels Like (°C)

16
16
16
16
18
19
20
22
20
23
25
26
26
26
25
27
27
26
25
23
21
20
18
18

Dew Point (°C)

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

Relative Humidity (%)

87
87
87
86
82
78
78
77
84
68
63
58
64
65
69
74
80
81
85
88
92
95
96
95

Pressure (mb)

1025
1025
1025
1026
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1028
1028
1029
1029
1029
1029
1029

Ozone (du)

337
337
336
336
338
341
348
352
353
348
349
347
343
341
341
340
338
336
333
329
327
326
326
325

Sunday 24

Waxing Gibbous 64%

13:37

02:28

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

Sun - Rise: 04:54, Set: 21:00, Transit: 12:57. Moon - Rise: 13:37, Set: 02:28. Civil Dark: 21:44 - 04:10. Nautical Dark: 22:48 - 03:06. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

47
53
62
60
58
59
52
47
47
44
55
67
69
56
39
23
7
10
16
17
15
12
8
4

Low Clouds (% Sky Obscured)

32
33
32
35
43
50
52
47
47
44
47
49
51
40
29
17
7
10
16
17
15
12
8
4

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
7
14
21
16
11
7
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

17
15
15
20
15
15
4
1
1
1
1
1
1
1
1
1
1
1
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 (%)

2
0
0
0
0
0
0
0
1
2
4
17
13
14
8
6
17
14
1
1
3
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
4
4
5
6
6
7
7
7
7
8
9
9
5
5
5
5
4
4
3

Chance of Frost

Temperature (°C)

16
16
16
16
17
18
20
21
23
24
25
25
25
26
25
24
23
20
18
17
16
15
14
13

Feels Like (°C)

17
16
16
16
17
18
20
23
24
25
26
26
26
26
26
24
24
22
21
21
20
19
18
13

Dew Point (°C)

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

Relative Humidity (%)

95
93
95
95
92
88
84
79
72
70
65
63
66
68
68
69
75
78
82
86
86
84
86
84

Pressure (mb)

1030
1030
1030
1030
1031
1031
1031
1031
1031
1031
1031
1030
1030
1030
1030
1030
1030
1031
1031
1031
1031
1031
1031
1031

Ozone (du)

324
324
324
323
323
322
322
323
324
325
326
326
325
326
325
325
325
325
325
326
325
324
323
323

Monday 25

Waxing Gibbous 74%

14:53

02:38

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

Sun - Rise: 04:53, Set: 21:01, Transit: 12:57. Moon - Rise: 14:53, Set: 02:38. Civil Dark: 21:46 - 04:09. Nautical Dark: 22:50 - 03:04. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
8
15
23
33
40
49
48
43
43
41
34
28
25
23
22
15
13

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
7
15
22
32
40
49
48
43
43
41
34
28
24
23
22
15
7

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
1
2

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
6
13

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
1
2
4
7
7
10
11
11
10
6
4
8
6
1
2
2
1
3
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)

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

Chance of Frost

Temperature (°C)

12
12
12
13
14
16
18
20
21
23
24
24
24
25
24
23
22
20
19
17
16
15
15
15

Feels Like (°C)

13
13
13
12
12
15
16
17
18
19
21
26
26
25
26
26
26
22
21
21
20
20
18
15

Dew Point (°C)

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

Relative Humidity (%)

83
84
81
82
82
79
77
75
69
66
61
60
60
58
63
68
74
77
82
86
83
80
78
76

Pressure (mb)

1031
1031
1031
1030
1030
1030
1030
1030
1029
1029
1029
1028
1028
1027
1027
1027
1027
1027
1027
1028
1028
1028
1028
1027

Ozone (du)

322
322
321
320
319
318
318
318
319
320
321
323
326
328
327
326
325
326
326
327
328
329
330
332

Tuesday 26

Waxing Gibbous 82%

16:07

02:49

03 Good
04 OK
05 OK
06 OK
07 Bad
08 OK
09 OK
10 OK
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 OK
00 OK

Sun - Rise: 04:52, Set: 21:03, Transit: 12:57. Moon - Rise: 16:07, Set: 02:49. Civil Dark: 21:47 - 04:07. Nautical Dark: 22:53 - 03:02. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

14
21
28
35
37
24
21
33
44
56
56
62
74
76
70
62
48
37
36
34
34
34

Low Clouds (% Sky Obscured)

0
0
0
0
2
5
7
5
3
0
10
19
26
17
10
5
6
7
8
7
8
9

Medium Clouds (% Sky Obscured)

2
21
28
35
37
24
21
33
44
56
56
57
49
51
52
54
46
37
36
33
30
25

High Clouds (% Sky Obscured)

14
21
28
35
35
15
15
15
15
15
20
24
24
11
6
4
2
1
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

Fog (%)

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

Precipitation Probability (%)

3
10
14
17
25
26
20
20
21
24
23
16
6
21
21
17
20
16
3
9
10
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

14
14
15
15
16
18
19
21
22
23
25
25
25
25
25
24
24
23
21
20
19
18

Feels Like (°C)

15
15
15
14
14
16
17
18
19
19
20
26
26
26
25
25
26
25
24
25
24
23

Dew Point (°C)

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

Relative Humidity (%)

74
71
71
72
72
70
68
67
65
62
61
62
62
63
65
67
71
73
77
81
82
83

Pressure (mb)

1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1026
1026
1026
1025
1025
1025
1025
1025
1026
1026
1026
1026

Ozone (du)

334
336
338
340
343
343
344
345
346
347
348
348
348
348
347
347
346
344
342
340
337
333

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

Generated: 20/05/26 03:05:25. Forecast: 20/05/26 to 26/05/26. Timezone: UTC+1.00