Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 26

Waxing Gibbous 82%

16:07

02:49

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

Sun - Rise: 04:51, Set: 21:03, Transit: 12:57. Moon - Rise: 16:07, Set: 02:49. Civil Dark: 21:47 - 04:06. Nautical Dark: 22:53 - 03:00. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
8
22
33
55
45
35
0
0
0
3
34
43
43
40
44
51
41
33

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
8
22
15
0
0
0
0
0
0
0
0
0
0
0
0
21
24
6

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
9
17
14
11
0
0
0
1
5
6
11
10
15
14
13
14

High Clouds (% Sky Obscured)

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

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
4
9
9
7
0
4
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
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
1
0
0
5
35
42
50
20
33
27
9
26
26
22
4
13
15
15

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.3
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

3
4
5
5
4
4
5
6
7
5
4
5
4
5
3
6
7
8
8
8
8
8
8
10

Chance of Frost

Temperature (°C)

22
24
27
29
30
31
32
32
32
32
32
31
29
25
23
21
19
18
18
17
16
15
15
16

Feels Like (°C)

24
26
28
30
32
33
34
34
34
35
35
34
32
29
26
23
21
20
18
17
16
15
15
15

Dew Point (°C)

14
13
13
13
14
14
15
17
18
19
20
23
23
21
18
17
18
18
17
16
16
15
15
14

Relative Humidity (%)

59
49
43
38
37
35
36
39
42
45
50
65
73
78
74
79
92
95
98
98
98
96
96
92

Pressure (mb)

1028
1028
1028
1027
1027
1026
1025
1025
1025
1024
1024
1024
1024
1025
1025
1025
1025
1025
1025
1025
1025
1026
1026
1026

Ozone (du)

316
315
314
314
315
315
314
314
315
315
315
317
319
321
323
324
325
326
326
326
326
327
328
329

Wednesday 27

Waxing Gibbous 89%

17:21

03:02

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

Sun - Rise: 04:50, Set: 21:04, Transit: 12:58. Moon - Rise: 17:21, Set: 03:02. Civil Dark: 21:49 - 04:05. Nautical Dark: 22:55 - 02:59. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

25
31
40
39
31
1
3
10
5
1
32
60
63
67
41
39
78
90
92
100
100
60
61
100

Low Clouds (% Sky Obscured)

0
0
9
3
21
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
1
0
0

Medium Clouds (% Sky Obscured)

11
14
12
12
9
1
3
10
4
1
18
28
31
33
22
21
21
9
16
54
71
60
61
85

High Clouds (% Sky Obscured)

0
12
26
19
9
1
3
10
5
1
1
2
0
19
0
0
46
65
73
100
100
19
40
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
4
2
9
9
9
8

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
Very Light Rain
Light Rain
Light Rain
None
None
Very Light Rain
Light Rain

Precipitation Probability (%)

11
8
10
7
2
3
12
3
2
1
1
0
1
4
10
1
14
63
95
95
65
46
50
68

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
1.2
1.2
0
0
0.3
0.4

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

16
18
19
20
21
22
22
21
21
21
20
18
17
15
13
12
11
11
11
11
10
9
10
11

Dew Point (°C)

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

Relative Humidity (%)

85
78
71
66
62
61
59
58
58
57
58
62
66
66
66
67
66
69
77
90
92
93
92
92

Pressure (mb)

1027
1027
1027
1027
1027
1027
1026
1026
1026
1025
1025
1025
1026
1026
1026
1026
1026
1026
1025
1025
1025
1024
1024
1024

Ozone (du)

329
329
328
328
327
327
327
327
329
329
329
329
330
330
329
329
331
333
332
332
332
333
335
337

Thursday 28

Waxing Gibbous 95%

18:35

03:18

08 Bad
09 Bad
10 OK
11 OK
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
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 04:49, Set: 21:05, Transit: 12:58. Moon - Rise: 18:35, Set: 03:18. Civil Dark: 21:50 - 04:04. Nautical Dark: 22:57 - 02:57. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
9
8
67
75
94
95
90
100
100
100
100
100
100
97
99
100
91
77
96
94
89
81

Low Clouds (% Sky Obscured)

0
0
0
6
0
0
0
0
21
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

15
23
3
0
4
6
53
55
63
84
88
83
44
100
98
81
85
86
57
24
53
51
52
30

High Clouds (% Sky Obscured)

100
100
5
7
49
57
57
89
74
100
95
99
100
100
100
89
73
83
83
77
88
80
69
56

ISS Passover

Visibility (miles)

7
5
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

Very Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

53
60
27
14
3
7
0
0
0
0
0
0
0
0
0
0
9
6
5
3
5
5
2
8

Precipitation Amount (mm)

0.2
0.6
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
12
11
12
12
11
12
11
10
8
7
8
9
7
6
5
4
5
4
3
3
3
3
4

Chance of Frost

Temperature (°C)

15
17
18
20
23
25
26
27
27
28
27
24
23
21
20
19
18
18
18
17
17
17
17
18

Feels Like (°C)

13
14
16
20
22
24
25
25
26
27
28
24
21
20
19
18
18
17
18
19
19
17
18
19

Dew Point (°C)

14
15
15
15
14
15
15
16
17
18
18
18
17
16
15
14
14
14
15
15
15
15
15
15

Relative Humidity (%)

90
85
80
69
58
53
51
51
51
54
57
68
72
73
69
72
76
79
83
88
87
87
85
78

Pressure (mb)

1024
1024
1024
1023
1023
1022
1022
1021
1021
1021
1021
1021
1021
1022
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021

Ozone (du)

339
340
339
336
335
333
331
329
329
329
329
329
329
331
335
337
339
338
335
334
331
329
328
329

Friday 29

Waxing Gibbous 98%

19:49

03:38

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
03 Bad
04 Bad
05 Bad
06 OK
07 OK

Sun - Rise: 04:48, Set: 21:06, Transit: 12:58. Moon - Rise: 19:49, Set: 03:38. Civil Dark: 21:52 - 04:03. Nautical Dark: 22:59 - 02:55. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

72
64
74
82
61
60
100
100
100
100
100
100
100
100
98
97
95
82
69
54
47
49
36
30

Low Clouds (% Sky Obscured)

0
0
4
8
12
9
5
0
0
0
0
0
0
0
11
21
34
31
28
23
18
12
7
10

Medium Clouds (% Sky Obscured)

50
42
58
66
61
60
79
48
38
34
33
92
93
83
52
43
94
82
69
54
47
49
36
30

High Clouds (% Sky Obscured)

41
25
48
74
61
60
100
100
100
100
100
80
66
49
46
38
35
35
20
20
15
15
20
16

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

7
1
0
0
0
0
0
0
1
8
1
16
44
40
22
13
23
23
28
47
15
6
2
10

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.2
0
0
0
0
0
0
0.3
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

20
22
23
24
26
27
27
27
27
26
25
24
23
21
20
20
19
19
18
18
17
17
17
18

Feels Like (°C)

20
22
23
25
26
28
29
27
27
26
26
26
25
24
22
21
21
21
19
19
19
19
19
20

Dew Point (°C)

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

Relative Humidity (%)

68
62
55
50
47
47
48
49
53
57
67
73
79
86
88
88
88
86
89
90
92
92
92
89

Pressure (mb)

1021
1022
1022
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1020
1020
1020
1020
1020
1020
1020

Ozone (du)

328
328
327
326
326
325
325
325
325
324
323
324
325
326
327
327
327
329
332
334
335
333
332
333

Saturday 30

Waxing Gibbous 100%

21:01

04:06

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 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 04:47, Set: 21:08, Transit: 12:58. Moon - Rise: 21:01, Set: 04:06. Civil Dark: 21:53 - 04:02. Nautical Dark: 23:01 - 02:53. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

28
35
44
50
57
56
55
55
68
84
95
49
63
83
95
93
90
93
97
100
100
100
100
81

Low Clouds (% Sky Obscured)

13
15
26
37
48
48
47
47
39
31
23
23
40
58
52
46
41
40
39
38
25
11
0
0

Medium Clouds (% Sky Obscured)

28
35
44
36
46
50
50
30
13
14
23
22
14
10
12
13
11
42
69
95
93
88
89
81

High Clouds (% Sky Obscured)

17
18
15
21
22
21
24
22
54
75
80
42
62
83
79
71
62
75
87
100
100
100
100
81

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
Very Light Rain
Light Rain
Very Light Rain

Precipitation Probability (%)

14
1
0
0
0
0
0
6
7
7
7
16
15
6
8
7
3
20
37
15
37
46
55
49

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

5
5
5
6
5
4
5
7
9
9
10
10
9
8
7
6
7
7
5
3
3
4
5
6

Chance of Frost

Temperature (°C)

19
21
22
23
24
26
26
27
27
27
26
25
23
22
20
19
18
17
16
16
16
16
16
16

Feels Like (°C)

21
22
23
23
25
27
27
26
26
26
25
26
25
24
24
23
22
21
15
16
17
16
16
15

Dew Point (°C)

17
16
16
16
16
17
16
16
16
16
17
17
16
16
15
15
15
14
14
14
14
13
13
13

Relative Humidity (%)

85
75
68
63
60
58
54
50
49
53
56
60
64
69
74
77
81
83
85
85
86
83
83
81

Pressure (mb)

1020
1020
1019
1019
1019
1018
1018
1017
1017
1016
1016
1016
1015
1015
1015
1014
1014
1014
1014
1014
1013
1013
1013
1013

Ozone (du)

330
331
332
333
335
337
337
338
339
340
339
337
338
340
341
340
339
339
336
333
330
328
327
326

Sunday 31

Full Moon 99%

22:07

04:44

08 Bad
09 OK
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
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 04:47, Set: 21:09, Transit: 12:58. Moon - Rise: 22:07, Set: 04:44. Civil Dark: 21:55 - 04:01. Nautical Dark: 23:03 - 02:52. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

63
45
65
83
100
100
100
100
93
85
79
81
82
83
73
63
53
71
84
94
96
98
100
100

Low Clouds (% Sky Obscured)

0
0
12
25
37
43
48
49
29
15
0
15
31
46
49
48
46
42
43
39
39
37
39
39

Medium Clouds (% Sky Obscured)

63
45
65
83
95
87
76
57
59
66
73
63
51
31
13
5
0
12
24
36
29
20
8
9

High Clouds (% Sky Obscured)

63
35
50
73
100
100
100
100
69
38
7
8
13
12
10
10
9
29
44
63
78
90
99
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 (%)

34
3
3
1
2
12
18
18
16
11
1
5
9
5
6
6
1
9
11
12
15
16
14
13

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
67
62
57
54
51
58
64
73
73
74
74
73
73
72
71
68
67
70
74
78
80
83
84

Pressure (mb)

1013
1014
1014
1014
1014
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1014
1014
1013
1013
1013
1013
1013
1013

Ozone (du)

325
324
323
326
328
330
335
341
347
351
354
358
354
351
347
345
344
342
342
343
343
343
343
343

Monday 1

Waning Gibbous 97%

23:02

05:36

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: 04:46, Set: 21:10, Transit: 12:58. Moon - Rise: 23:02, Set: 05:36. Civil Dark: 21:56 - 04:00. Nautical Dark: 23:05 - 02:50. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

37
35
50
65
79
79
78
74
62
49
34
32
27
25
22
27
32

Medium Clouds (% Sky Obscured)

9
10
14
14
23
36
41
41
38
39
35
40
54
65
69
77
80

High Clouds (% Sky Obscured)

97
96
97
99
100
100
100
100
100
100
100
97
94
90
94
97
100

ISS Passover

Visibility (miles)

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

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

12
11
20
25
32
38
39
39
37
33
29
24
18
11
23
30
36

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

12
12
13
13
13
13
16
15
14
15
15
15
13
14
15
14
14

Dew Point (°C)

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

Relative Humidity (%)

83
82
81
73
66
61
58
55
53
56
61
64
67
72
77
80
84

Pressure (mb)

1013
1013
1013
1012
1012
1012
1011
1011
1010
1010
1010
1009
1009
1009
1009
1008
1008

Ozone (du)

342
341
340
339
338
338
338
338
338
339
340
341
343
346
348
348
349

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

Generated: 26/05/26 08:42:53. Forecast: 26/05/26 to 01/06/26. Timezone: UTC+1.00