Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 8

Waning Crescent 34%

00:18

14:37

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

Sun - Rise: 04:53, Set: 21:19, Transit: 13:06. Moon - Rise: 00:18, Set: 14:37. Civil Dark: 22:05 - 04:07. Nautical Dark: 23:15 - 02:57. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

0
1
0
19
32
17
19
10
17
28
20
20
4
2
2
2
2
3
5
22
27
37
32
2

Low Clouds (% Sky Obscured)

0
0
0
5
16
17
19
7
15
28
16
16
0
0
0
0
0
0
0
0
8
30
32
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
2
2
0
0
0
0
0
0
1
12
14
5
0
0

High Clouds (% Sky Obscured)

0
1
0
13
18
1
0
4
3
3
3
2
4
2
2
2
2
3
5
2
5
3
4
2

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)

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

Chance of Frost

Temperature (°C)

23
25
26
28
29
30
31
32
32
31
31
30
27
24
23
23
22
21
21
20
19
19
21
23

Feels Like (°C)

24
26
28
29
31
32
32
33
33
33
32
30
26
24
23
23
23
22
21
21
21
21
23
25

Dew Point (°C)

13
13
14
14
14
14
14
14
14
13
14
17
19
17
15
14
14
14
13
13
13
13
13
13

Relative Humidity (%)

53
49
46
41
39
37
35
34
33
33
34
44
58
64
62
58
58
61
62
64
67
67
59
53

Pressure (mb)

1020
1020
1020
1020
1019
1019
1019
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018

Ozone (du)

319
320
320
321
321
321
321
320
319
318
317
317
318
319
319
319
320
320
321
322
322
322
322
323

Thursday 9

Waning Crescent 23%

00:38

16:05

09 Good
10 Good
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 OK
07 Bad
08 OK

Sun - Rise: 04:54, Set: 21:18, Transit: 13:06. Moon - Rise: 00:38, Set: 16:05. Civil Dark: 22:04 - 04:08. Nautical Dark: 23:14 - 02:59. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

7
3
31
65
64
70
81
80
90
99
100
100
100
100
100
100
100
100
100
100
92
42
72
37

Low Clouds (% Sky Obscured)

5
0
0
39
39
0
0
0
0
0
6
1
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
37
40
34
30
24
23
26
21
4
0
0
0
0
8
10
13
2
0
0

High Clouds (% Sky Obscured)

3
3
31
65
64
64
62
60
74
98
100
100
100
100
100
100
100
100
100
100
90
42
72
37

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)

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

Chance of Frost

Temperature (°C)

25
27
29
31
32
32
33
33
33
33
32
31
29
26
25
24
23
22
21
21
20
20
21
23

Feels Like (°C)

26
29
31
31
31
31
32
33
33
32
31
29
27
26
25
23
22
21
21
20
19
20
21
23

Dew Point (°C)

13
14
14
14
14
12
11
10
9
8
10
16
17
17
15
15
15
15
15
15
15
15
14
14

Relative Humidity (%)

48
44
39
36
33
28
26
24
22
22
25
40
49
56
53
55
60
63
66
69
72
71
65
58

Pressure (mb)

1019
1018
1018
1017
1017
1016
1016
1015
1015
1015
1015
1015
1015
1016
1016
1016
1016
1016
1016
1016
1017
1017
1017
1017

Ozone (du)

323
323
323
325
326
326
326
327
327
327
327
326
326
327
327
327
327
328
330
331
331
332
332
331

Friday 10

Waning Crescent 23%

01:08

17:35

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

Sun - Rise: 04:55, Set: 21:17, Transit: 13:06. Moon - Rise: 01:08, Set: 17:35. Civil Dark: 22:03 - 04:10. Nautical Dark: 23:12 - 03:01. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

33
53
18
47
26
26
21
31
4
2
2
0
1
1
1
0
0
0
0
3
3
5
5
8

Low Clouds (% Sky Obscured)

0
0
0
4
17
20
21
12
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
31
13
16
8
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

33
52
15
38
3
1
4
27
3
2
2
0
1
1
1
0
0
0
0
1
1
2
2
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
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
8
8
8
9
9
11
12
12
13
15
13
9
6
6
6
6
6
6
6
7
7
10
11

Chance of Frost

Temperature (°C)

25
27
29
30
31
32
32
32
31
30
28
26
24
22
21
20
19
18
18
17
17
18
18
21

Feels Like (°C)

25
27
29
30
32
32
31
30
30
28
26
25
24
24
21
20
19
19
18
18
18
18
18
20

Dew Point (°C)

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

Relative Humidity (%)

51
44
39
35
33
31
29
29
31
32
36
43
51
61
66
71
77
82
88
90
90
88
73
60

Pressure (mb)

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

Ozone (du)

331
332
331
330
330
332
332
332
331
330
329
328
329
329
329
329
329
330
330
329
329
330
329
329

Saturday 11

Waning Crescent 14%

01:53

19:02

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

Sun - Rise: 04:57, Set: 21:16, Transit: 13:06. Moon - Rise: 01:53, Set: 19:02. Civil Dark: 22:02 - 04:11. Nautical Dark: 23:11 - 03:03. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

7
10
11
13
18
15
25
30
26
24
16
9
2
19
51
77
85
80
57
59
63
63
75
65

Low Clouds (% Sky Obscured)

0
5
11
13
18
15
25
26
25
22
15
7
0
16
31
76
85
80
46
47
52
49
38
28

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)

3
3
2
2
4
2
5
7
4
1
0
1
2
2
14
3
1
0
0
0
0
5
41
56

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)

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

Chance of Frost

Temperature (°C)

23
25
27
28
29
30
30
31
30
29
28
26
23
21
20
18
17
17
16
16
16
16
16
18

Feels Like (°C)

22
24
25
26
27
27
28
27
27
26
25
23
21
19
18
16
14
13
13
14
14
13
13
13

Dew Point (°C)

12
12
10
9
9
8
8
8
8
10
11
13
14
16
17
17
15
14
14
14
15
14
12
10

Relative Humidity (%)

50
42
36
30
27
25
24
23
25
30
34
43
56
70
85
93
92
85
85
87
93
87
73
61

Pressure (mb)

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

Ozone (du)

328
328
329
328
327
326
327
327
327
327
326
326
325
325
326
326
325
325
325
325
326
326
325
324

Sunday 12

Waning Crescent 6%

02:59

20:16

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

Sun - Rise: 04:58, Set: 21:16, Transit: 13:06. Moon - Rise: 02:59, Set: 20:16. Civil Dark: 22:01 - 04:12. Nautical Dark: 23:09 - 03:05. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

58
47
47
45
49
53
56
60
65
65
0
0
0
0
0
0
31
63
91
86
83
80
64
45

Low Clouds (% Sky Obscured)

18
22
23
26
23
23
21
16
7
0
0
0
0
0
0
0
14
26
36
44
55
65
64
45

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)

58
35
29
20
26
36
51
55
65
65
0
0
0
0
0
0
26
50
71
63
52
41
26
10

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
3
6
8
7
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)

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

Chance of Frost

Temperature (°C)

20
21
23
25
27
27
28
28
27
26
25
24
22
20
18
17
15
15
14
14
14
15
15
17

Feels Like (°C)

15
17
19
21
23
23
23
24
23
21
20
22
21
21
20
19
18
11
11
11
11
10
9
14

Dew Point (°C)

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

Relative Humidity (%)

49
41
36
32
29
27
26
26
26
28
30
38
46
57
66
79
95
95
92
92
87
82
78
72

Pressure (mb)

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

Ozone (du)

323
323
322
321
321
322
323
323
323
323
323
323
324
324
324
325
326
326
326
326
325
324
323
325

Monday 13

Waning Crescent 2%

04:23

21:09

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

Sun - Rise: 04:59, Set: 21:15, Transit: 13:06. Moon - Rise: 04:23, Set: 21:09. Civil Dark: 22:00 - 04:14. Nautical Dark: 23:07 - 03:07. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

28
19
11
3
2
1
0
0
0
0
11
21
32
52
73
93
91
90
90
81
78
79
66
54

Low Clouds (% Sky Obscured)

28
19
11
3
2
1
0
0
0
0
2
5
7
11
14
17
18
19
20
25
20
25
20
16

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)

3
2
1
0
0
0
0
0
0
0
5
12
20
39
57
75
66
57
49
33
17
1
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)

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

Chance of Frost

Temperature (°C)

19
21
23
25
27
27
27
28
27
26
25
23
21
19
17
16
15
15
14
14
14
15
16
18

Feels Like (°C)

15
15
15
15
15
27
25
24
24
25
25
21
21
20
20
19
19
11
11
12
11
11
10
16

Dew Point (°C)

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

Relative Humidity (%)

67
63
50
41
33
31
30
28
31
35
39
47
57
66
72
78
84
87
89
93
87
83
77
63

Pressure (mb)

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

Ozone (du)

327
329
330
330
331
331
331
332
332
333
334
333
332
331
331
330
330
330
330
330
331
332
333
333

Tuesday 14

New Moon 0%

05:57

21:45

09 OK
10 OK
11 OK
12 OK
13 OK
14 OK
15 OK
16 OK
17 OK
18 Bad
19 OK
20 OK
21 OK
22 OK
23 OK
00 OK

Sun - Rise: 05:00, Set: 21:14, Transit: 13:06. Moon - Rise: 05:57, Set: 21:45. Civil Dark: 21:59 - 04:15. Nautical Dark: 23:05 - 03:10. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

38
34
27
23
25
24
26
36
40
45
35
30
30
26
26
27

Low Clouds (% Sky Obscured)

14
10
9
9
6
7
9
9
7
6
9
18
28
26
26
27

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
10
23
30
26
26
27

High Clouds (% Sky Obscured)

0
0
0
0
2
3
4
17
24
30
30
25
25
21
26
27

ISS Passover

Visibility (miles)

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

Precipitation Type

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
2
4
4

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

21
23
25
26
28
28
28
28
27
26
26
24
22
20
19
18

Feels Like (°C)

16
16
17
18
20
27
26
24
25
25
25
21
21
21
20
20

Dew Point (°C)

11
10
8
6
5
5
5
4
3
2
1
3
5
7
8
10

Relative Humidity (%)

52
43
35
28
23
22
22
21
20
20
19
25
33
44
51
58

Pressure (mb)

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

Ozone (du)

334
334
335
337
338
336
335
334
330
327
324
322
321
319
321
322

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

Generated: 08/07/26 09:16:10. Forecast: 08/07/26 to 14/07/26. Timezone: UTC+1.00