Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 12

Waning Crescent 2%

02:59

20:16

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

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)

33
29
3
0
0
0
0
0
0
0
0
34
42
47
60
55
50
70
87
62
24
25
29
29

Low Clouds (% Sky Obscured)

17
0
0
0
0
0
0
0
0
0
0
25
31
40
53
53
49
69
86
57
24
25
29
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)

33
15
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
3
4
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)

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

Chance of Frost

Temperature (°C)

28
28
28
28
27
26
24
21
19
18
16
15
14
14
13
13
14
15
17
19
21
23
25
26

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

29
28
28
29
31
33
40
48
56
64
71
78
83
87
93
95
95
89
83
80
69
50
37
29

Pressure (mb)

1024
1024
1024
1023
1023
1024
1024
1025
1025
1026
1026
1025
1025
1025
1025
1025
1025
1025
1024
1024
1024
1023
1022
1022

Ozone (du)

317
319
322
323
323
323
321
322
323
323
323
323
324
324
326
329
329
330
331
331
333
333
334
334

Monday 13

Waning Crescent 0%

04:23

21:09

14 OK
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
08 OK
09 Good
10 Good
11 OK
12 OK
13 OK

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)

30
54
56
55
62
53
60
72
79
84
87
87
87
73
70
75
73
43
35
8
8
15
27
23

Low Clouds (% Sky Obscured)

28
26
28
30
34
30
26
40
43
56
70
69
56
56
66
71
72
43
35
8
8
15
27
23

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
49
50
50
45
30
40
40
45
50
46
45
55
31
4
4
5
1
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
1
9
9
9
9
9
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
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)

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

Chance of Frost

Temperature (°C)

27
27
27
27
26
24
22
20
18
17
17
17
17
16
16
16
17
18
20
23
25
27
29
30

Feels Like (°C)

24
24
22
22
21
20
19
17
16
16
14
14
15
14
14
15
16
16
20
22
24
26
26
27

Dew Point (°C)

6
6
6
7
9
11
12
13
14
16
16
16
16
16
16
16
16
16
16
15
12
10
9
9

Relative Humidity (%)

26
25
26
29
34
42
53
64
77
92
96
95
95
95
98
98
98
89
77
61
46
35
29
27

Pressure (mb)

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

Ozone (du)

333
330
328
327
327
328
327
327
325
323
320
319
318
317
316
316
319
322
323
324
325
326
327
328

Tuesday 14

New Moon 0%

05:57

21:45

14 OK
15 OK
16 Bad
17 OK
18 Good
19 Good
20 Bad
21 OK
22 OK
23 OK
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

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)

17
19
32
19
0
5
48
37
31
25
44
71
87
96
94
92
89
88
89
89
90
93
96
94

Low Clouds (% Sky Obscured)

17
19
13
0
0
0
0
0
0
0
0
5
11
17
19
21
20
15
7
0
0
0
0
4

Medium Clouds (% Sky Obscured)

0
16
24
19
0
0
0
34
31
25
44
52
51
55
42
30
21
23
25
27
41
30
29
23

High Clouds (% Sky Obscured)

0
0
2
3
0
5
47
30
16
2
44
71
87
96
76
53
35
35
35
35
30
35
40
50

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
2
8
14
17
21
24
24
19
5
7
5
0
1
1
0
1

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)

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

Chance of Frost

Temperature (°C)

30
31
31
31
30
28
27
24
23
21
20
19
19
18
18
18
18
18
20
22
25
26
28
30

Feels Like (°C)

27
28
28
27
26
25
24
22
20
20
19
18
18
17
16
16
16
16
17
19
20
22
24
24

Dew Point (°C)

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

Relative Humidity (%)

26
25
25
25
26
29
37
47
56
65
72
80
82
83
85
85
82
70
54
45
39
35
33
30

Pressure (mb)

1019
1019
1019
1019
1019
1019
1020
1020
1020
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1020
1020
1020

Ozone (du)

327
326
326
327
326
325
327
328
327
325
324
324
323
322
322
322
322
323
324
324
323
323
323
323

Wednesday 15

Waxing Crescent 2%

07:29

22:09

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

Sun - Rise: 05:01, Set: 21:13, Transit: 13:06. Moon - Rise: 07:29, Set: 22:09. Civil Dark: 21:58 - 04:17. Nautical Dark: 23:03 - 03:12. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

93
85
51
60
65
57
43
31
23
14
6
3
3
2
44
73
100
89
80
73
83
92
100
100

Low Clouds (% Sky Obscured)

8
11
8
4
0
0
0
0
0
0
0
0
0
0
2
4
6
4
2
0
12
22
33
28

Medium Clouds (% Sky Obscured)

19
14
13
16
16
18
21
24
17
9
3
0
3
1
4
4
2
1
1
2
3
5
6
5

High Clouds (% Sky Obscured)

60
66
44
54
62
49
30
10
7
4
2
2
1
1
42
73
100
89
80
73
83
92
100
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 (%)

2
2
6
8
8
9
7
0
0
0
0
0
0
1
1
0
0
0
0
1
14
19
19
17

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

27
25
24
24
24
24
27
35
45
53
60
62
64
58
59
62
61
55
45
34
28
24
21
20

Pressure (mb)

1020
1019
1019
1019
1019
1020
1020
1020
1021
1021
1021
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1019

Ozone (du)

322
322
321
321
321
323
323
322
323
323
325
328
329
329
329
328
327
328
326
325
324
325
326
327

Thursday 16

Waxing Crescent 7%

08:57

22:27

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
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad

Sun - Rise: 05:03, Set: 21:12, Transit: 13:07. Moon - Rise: 08:57, Set: 22:27. Civil Dark: 21:56 - 04:18. Nautical Dark: 23:01 - 03:14. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
100
99
84
83
78
75
81
85
91
89
89
78
73
78
73
76
82
84
89
94
98
97

Low Clouds (% Sky Obscured)

25
20
15
7
0
0
0
0
0
0
0
0
0
0
3
7
10
18
23
25
20
20
15
14

Medium Clouds (% Sky Obscured)

6
3
53
78
69
24
29
34
42
48
50
51
50
49
52
49
52
58
60
59
47
36
27
35

High Clouds (% Sky Obscured)

100
100
100
71
77
52
54
52
64
75
85
85
78
68
67
62
56
53
37
40
59
77
96
89

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

Precipitation Probability (%)

22
24
22
23
25
9
8
1
6
7
6
14
17
21
37
42
36
63
80
94
80
69
60
55

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.5
0.7
0.5
0.4
0.3
0.2

Wind Speed/Direction (mph)

12
12
11
9
8
8
8
7
7
5
4
3
5
6
7
7
8
8
8
8
9
8
8
7

Chance of Frost

Temperature (°C)

31
31
31
30
30
30
27
26
24
23
22
21
20
20
19
19
19
19
20
21
22
23
24
25

Feels Like (°C)

26
27
27
26
27
28
28
27
27
26
25
24
19
19
20
19
18
18
18
18
16
17
18
18

Dew Point (°C)

5
5
6
6
7
8
8
9
10
10
9
9
9
9
8
8
8
8
7
6
5
4
2
1

Relative Humidity (%)

19
19
20
22
23
25
29
34
41
42
44
46
48
48
49
48
48
48
41
36
31
27
24
21

Pressure (mb)

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

Ozone (du)

327
327
327
327
328
329
329
329
330
328
327
326
325
325
324
323
322
321
321
321
321
322
324
326

Friday 17

Waxing Crescent 14%

10:20

22:40

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
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad

Sun - Rise: 05:04, Set: 21:11, Transit: 13:07. Moon - Rise: 10:20, Set: 22:40. Civil Dark: 21:55 - 04:20. Nautical Dark: 22:59 - 03:16. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

95
93
91
88
84
84
85
85
88
93
98
98
99
100
91
87
88
87
86
80
81
77
77
76

Low Clouds (% Sky Obscured)

13
12
29
46
62
64
65
65
51
37
23
23
22
22
26
20
24
24
24
28
23
23
27
21

Medium Clouds (% Sky Obscured)

45
59
51
44
36
45
52
61
54
45
37
30
21
11
13
19
27
32
33
34
34
34
35
33

High Clouds (% Sky Obscured)

85
78
66
56
45
46
49
49
56
62
69
81
91
100
84
68
53
48
49
45
49
52
55
43

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

Precipitation Probability (%)

43
31
38
40
37
36
39
50
50
62
58
57
50
37
52
56
57
65
72
75
69
64
64
55

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

1
0
-1
1
2
4
7
10
13
12
12
11
11
11
10
10
10
9
8
7
6
5
3
2

Relative Humidity (%)

19
17
16
19
22
25
34
44
59
59
58
59
58
59
59
56
54
51
43
36
30
27
23
21

Pressure (mb)

1016
1015
1015
1015
1015
1015
1015
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1017
1017
1017
1017
1017
1017
1017

Ozone (du)

326
327
327
326
325
324
323
322
322
321
321
321
321
322
323
324
324
325
324
324
323
322
320
319

Saturday 18

Waxing Crescent 23%

11:39

22:52

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

Sun - Rise: 05:05, Set: 21:09, Transit: 13:07. Moon - Rise: 11:39, Set: 22:52. Civil Dark: 21:54 - 04:21. Nautical Dark: 22:57 - 03:18. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

67
67
70
76
87
91
93
94
80
66
52

Low Clouds (% Sky Obscured)

23
29
50
66
83
74
63
55
58
62
52

Medium Clouds (% Sky Obscured)

26
24
41
57
74
76
77
80
62
46
33

High Clouds (% Sky Obscured)

21
5
15
29
43
48
57
62
53
37
23

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

48
46
35
23
5
8
6
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

8
8
9
9
10
11
10
9
9
9
9

Chance of Frost

Temperature (°C)

26
26
27
26
25
23
22
21
20
19
18

Feels Like (°C)

26
26
25
26
27
29
20
20
20
20
21

Dew Point (°C)

1
1
1
3
5
6
7
7
6
7
7

Relative Humidity (%)

20
19
18
22
27
33
36
39
42
46
50

Pressure (mb)

1017
1017
1017
1017
1018
1018
1019
1019
1020
1020
1020

Ozone (du)

319
318
317
316
315
314
314
314
315
315
316

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

Generated: 12/07/26 14:35:08. Forecast: 12/07/26 to 18/07/26. Timezone: UTC+1.00