Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 26

Waxing Gibbous 89%

20:00

02:08

23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
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

Sun - Rise: 04:44, Set: 21:23, Transit: 13:04. Moon - Rise: 20:00, Set: 02:08. Civil Dark: 22:11 - 03:56. Nautical Dark: 23:28 - 02:40. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

23
40
44
72
83
58
28
40
49
85
68
100
58
100
100
100
99
93
73
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
4
0
7
16
5
2
0
0
3
15
28
25
0
8
2
2
2
0
0

Medium Clouds (% Sky Obscured)

23
40
42
67
51
36
23
20
10
0
0
0
2
40
13
10
32
35
27
95
48
44
21
22

High Clouds (% Sky Obscured)

23
40
44
40
45
32
4
16
33
81
54
100
58
100
100
100
97
86
60
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
8
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 (%)

95
95
95
25
16
8
7
4
0
0
0
0
0
0
0
1
0
1
0
0
0
1
1
2

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

Chance of Frost

Temperature (°C)

23
21
21
21
20
20
19
20
21
22
24
26
27
28
29
30
30
30
30
29
28
27
25
24

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
77
80
88
89
92
92
89
80
69
57
48
45
43
41
38
37
35
35
38
42
46
50
58

Pressure (mb)

1016
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1016
1016
1015
1015
1015
1015
1014
1014
1015
1015
1015

Ozone (du)

312
313
312
312
313
315
315
315
314
313
315
314
315
315
316
317
316
317
318
318
319
320
323
323

Saturday 27

Waxing Gibbous 96%

20:58

02:43

23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 OK
05 OK
06 OK
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 OK
22 Good

Sun - Rise: 04:44, Set: 21:23, Transit: 13:04. Moon - Rise: 20:58, Set: 02:43. Civil Dark: 22:11 - 03:56. Nautical Dark: 23:27 - 02:41. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
61
100
50
54
39
26
38
52
78
89
82
76
78
97
74
68
74
91
59
74
69
46
4

Low Clouds (% Sky Obscured)

21
25
57
48
54
39
26
38
34
76
65
56
34
60
65
64
40
39
50
33
18
0
0
4

Medium Clouds (% Sky Obscured)

50
8
29
25
28
1
0
0
27
30
56
42
56
63
58
47
34
24
7
0
0
0
0
0

High Clouds (% Sky Obscured)

100
55
100
0
0
0
0
0
0
0
0
0
2
2
22
45
58
29
50
24
50
67
46
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
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

19
39
90
40
3
0
0
0
0
3
10
7
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0.8
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
8
8
8
8
9
9
9
12
12
14
13
13
14
14
14
14
13
13
15
15
13
10
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

61
68
75
78
80
83
86
83
81
75
69
61
49
40
42
48
43
37
37
40
45
45
46
52

Pressure (mb)

1015
1016
1015
1016
1016
1016
1016
1016
1017
1017
1017
1017
1018
1018
1018
1019
1019
1019
1019
1019
1020
1021
1021
1022

Ozone (du)

325
330
339
347
333
325
323
322
322
323
326
331
329
331
333
330
328
327
326
326
329
331
330
338

Sunday 28

Waxing Gibbous 99%

21:44

03:30

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

Sun - Rise: 04:45, Set: 21:23, Transit: 13:04. Moon - Rise: 21:44, Set: 03:30. Civil Dark: 22:11 - 03:57. Nautical Dark: 23:27 - 02:42. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

14
55
62
68
72
63
26
37
7
32
64
93
92
77
91
100
100
100
100
48
47
51
87
53

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
29
37
63
27
7
10
2
5
2
0
0
2
4
6
6

Medium Clouds (% Sky Obscured)

0
0
28
10
30
35
26
37
5
2
2
42
84
70
76
69
73
63
100
48
47
51
47
45

High Clouds (% Sky Obscured)

11
45
43
56
66
45
2
23
2
4
29
45
47
55
70
100
100
100
100
1
23
43
87
53

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
2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

14
14
12
12
12
12
11
11
12
15
17
17
18
19
19
21
21
21
21
21
23
22
21
18

Dew Point (°C)

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

Relative Humidity (%)

63
69
75
80
84
86
86
81
70
62
55
48
43
40
39
40
39
40
42
42
42
51
55
56

Pressure (mb)

1023
1024
1024
1024
1024
1025
1025
1025
1026
1026
1026
1026
1026
1026
1026
1025
1025
1025
1024
1024
1024
1024
1024
1024

Ozone (du)

349
348
345
345
343
341
341
342
342
340
338
337
337
337
338
342
341
341
343
348
346
343
342
343

Monday 29

Waxing Gibbous 100%

22:18

04:30

23 Bad
00 OK
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
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

Sun - Rise: 04:46, Set: 21:23, Transit: 13:04. Moon - Rise: 22:18, Set: 04:30. Civil Dark: 22:10 - 03:58. Nautical Dark: 23:26 - 02:43. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

49
46
100
100
100
100
100
100
99
97
41
87
97
99
99
100
100
98
96
94
94
95
85
93

Low Clouds (% Sky Obscured)

7
6
5
2
0
0
0
0
2
0
0
8
20
56
57
52
47
37
42
40
44
48
25
50

Medium Clouds (% Sky Obscured)

43
40
40
43
43
43
38
38
39
56
40
84
96
92
60
84
67
98
63
94
94
92
71
45

High Clouds (% Sky Obscured)

49
46
100
100
100
100
100
100
82
64
6
4
2
0
2
14
17
21
17
18
18
34
46
31

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
1
3
18
25
25
21
15
5
10
16
18
17
17
19
26
35
28
21
19
6
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)

2
2
3
4
2
3
2
1
2
2
2
2
2
2
2
3
5
5
4
3
2
5
4
2

Chance of Frost

Temperature (°C)

18
18
17
17
16
16
16
16
16
17
19
20
21
21
21
21
21
21
20
20
19
19
18
17

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

59
61
63
65
66
67
68
66
61
56
50
45
42
39
36
35
40
42
45
53
58
59
60
65

Pressure (mb)

1025
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1024

Ozone (du)

341
343
341
343
346
347
349
351
353
356
359
362
360
362
361
360
360
360
363
363
363
364
365
365

Tuesday 30

Full Moon 99%

22:43

05:39

23 Bad
00 Bad
01 Bad
02 OK
03 OK
04 OK
05 Bad
06 Bad
07 Bad
08 OK
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

Sun - Rise: 04:46, Set: 21:22, Transit: 13:04. Moon - Rise: 22:43, Set: 05:39. Civil Dark: 22:10 - 03:59. Nautical Dark: 23:25 - 02:44. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

85
70
64
43
39
38
51
57
67
48
61
96
99
100
98
97
97
98
99
99
100
100
100
100

Low Clouds (% Sky Obscured)

36
17
19
5
9
18
37
53
54
19
17
16
9
7
26
43
61
61
59
62
75
89
100
100

Medium Clouds (% Sky Obscured)

48
47
46
43
39
24
13
0
6
11
14
24
35
47
56
67
70
79
84
91
91
91
91
87

High Clouds (% Sky Obscured)

15
0
0
0
0
0
4
16
15
30
48
93
97
99
87
75
64
46
27
8
8
9
4
15

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 (%)

3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
8
15
23
24
21
15
16

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
4
4
3
4
4
4
3
4
4
4
5
4
4
5
6
7
8
7
6
8
8
9
11

Chance of Frost

Temperature (°C)

17
16
16
15
15
14
14
15
15
17
19
21
22
23
24
24
23
23
22
21
20
19
19
18

Feels Like (°C)

16
15
16
15
15
15
14
15
14
16
19
22
22
23
24
23
23
22
22
22
22
18
18
18

Dew Point (°C)

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

Relative Humidity (%)

65
67
73
74
79
86
86
82
77
72
63
56
49
45
39
37
35
33
36
38
42
46
50
55

Pressure (mb)

1024
1024
1024
1024
1024
1024
1025
1025
1025
1025
1025
1025
1025
1024
1024
1023
1023
1022
1022
1021
1021
1021
1021
1021

Ozone (du)

365
365
364
364
361
357
349
344
343
340
338
336
336
333
329
327
324
322
320
318
316
316
316
316

Wednesday 1

Waning Gibbous 96%

23:02

06:53

23 Bad
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 OK
22 OK

Sun - Rise: 04:47, Set: 21:22, Transit: 13:05. Moon - Rise: 23:02, Set: 06:53. Civil Dark: 22:10 - 04:00. Nautical Dark: 23:24 - 02:46. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
99
99
98
89
81
72
66
61
55
62
71
80
83
86
89
81
73
66
53
40
26
22

Low Clouds (% Sky Obscured)

99
98
99
99
98
89
81
72
66
61
55
62
71
79
80
82
84
81
73
66
53
40
26
22

Medium Clouds (% Sky Obscured)

81
75
50
27
4
2
1
0
0
0
0
8
15
19
25
29
36
23
14
3
2
1
0
0

High Clouds (% Sky Obscured)

28
42
28
14
0
3
6
8
5
3
1
3
5
6
5
5
4
5
6
7
5
4
2
2

ISS Passover

Visibility (miles)

9
9
8
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 (%)

17
19
32
35
28
22
17
14
18
19
19
22
24
28
26
24
18
15
11
9
10
7
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)

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

Chance of Frost

Temperature (°C)

18
18
18
18
18
17
18
18
18
18
19
19
20
21
22
22
22
22
22
21
21
20
18
17

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

60
65
72
74
78
83
83
86
89
85
81
77
71
68
64
60
57
54
56
57
60
61
64
66

Pressure (mb)

1020
1020
1019
1019
1018
1018
1018
1018
1017
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1019
1019
1020
1020
1021

Ozone (du)

316
316
316
316
317
317
317
317
317
317
317
317
318
319
320
321
322
323
323
323
323
324
325
327

Thursday 2

Waning Gibbous 91%

23:02

08:09

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

Sun - Rise: 04:48, Set: 21:22, Transit: 13:05. Moon - Rise: 23:02, Set: 08:09. Civil Dark: 22:09 - 04:00. Nautical Dark: 23:23 - 02:47. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

19
12
19
26
33
32
20
5
5
0
5
15
30
48
38
31
24
25
26
27

Low Clouds (% Sky Obscured)

19
4
6
9
10
7
3
0
4
0
5
15
30
48
38
31
24
25
26
27

Medium Clouds (% Sky Obscured)

0
0
1
1
2
25
20
5
5
0
5
15
30
48
38
31
24
25
26
27

High Clouds (% Sky Obscured)

3
3
5
6
6
25
20
5
5
0
5
10
5
5
14
17
20
13
8
0

ISS Passover

Visibility (miles)

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

Fog (%)

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
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
7
14
19
34
46
57
55
54
56

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

7
8
8
8
8
8
8
8
8
8
7
7
7
7
8
7
7
7
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

17
17
17
12
12
12
11
11
11
12
12
13
13
13
14
21
21
20
20
21

Dew Point (°C)

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

Relative Humidity (%)

69
74
79
83
84
89
84
80
76
73
72
68
62
56
51
57
62
69
70
70

Pressure (mb)

1021
1022
1022
1022
1022
1023
1023
1023
1024
1024
1024
1025
1025
1024
1024
1024
1024
1024
1024
1025

Ozone (du)

326
325
325
325
325
325
326
328
329
330
331
333
336
339
342
348
355
361
365
369

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

Generated: 26/06/26 23:19:45. Forecast: 26/06/26 to 02/07/26. Timezone: UTC+1.00