Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 4

Waning Gibbous 77%

23:28

09:25

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

Sun - Rise: 04:49, Set: 21:21, Transit: 13:05. Moon - Rise: 23:28, Set: 09:25. Civil Dark: 22:08 - 04:02. Nautical Dark: 23:21 - 02:50. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

1
12
29
40
52
50
39
37
21
45
59
34
38
67
84
98
14
14
100
100
97
80
16
38

Low Clouds (% Sky Obscured)

1
12
29
40
52
50
39
37
21
19
20
23
29
30
21
14
0
0
0
0
0
0
0
9

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
5
5
3
0
0
0
0
0
0
0
0
0
0
16
5

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
1
31
51
11
14
58
81
96
14
14
100
100
97
80
3
38

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
7
10
11
12
12
13
13
15
17
16
15
16
16
14
13
12
11
11
11
10
9
8
8

Chance of Frost

Temperature (°C)

14
14
16
18
20
21
22
24
26
26
27
27
27
27
26
24
22
20
19
18
17
17
16
15

Feels Like (°C)

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

Dew Point (°C)

13
12
13
14
14
13
12
11
12
13
13
13
12
12
13
13
13
13
13
14
13
13
13
14

Relative Humidity (%)

92
87
81
76
68
58
51
45
42
42
41
40
38
40
45
51
57
63
68
74
77
81
83
89

Pressure (mb)

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

Ozone (du)

335
335
335
336
336
336
336
335
334
331
331
331
331
332
332
334
336
338
337
337
338
339
342
337

Sunday 5

Waning Gibbous 77%

23:39

10:40

05 Bad
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 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad

Sun - Rise: 04:50, Set: 21:21, Transit: 13:05. Moon - Rise: 23:39, Set: 10:40. Civil Dark: 22:08 - 04:04. Nautical Dark: 23:20 - 02:52. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

53
47
74
59
89
91
82
91
72
76
84
74
100
100
82
94
97
100
99
75
100
92
89
93

Low Clouds (% Sky Obscured)

15
18
22
27
77
85
77
78
53
31
41
30
35
32
34
26
40
20
16
0
16
0
0
2

Medium Clouds (% Sky Obscured)

3
47
3
1
10
13
25
35
22
18
2
36
60
58
0
1
86
71
83
21
50
48
33
26

High Clouds (% Sky Obscured)

53
47
74
59
64
34
7
41
29
56
56
34
89
100
66
87
83
93
57
56
55
55
60
83

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
7
9
10
11
11
11
11
11
12
11
10
11
14
12
12
10
8
7
8
8
8
7
7

Chance of Frost

Temperature (°C)

15
15
17
18
20
22
22
23
24
26
27
28
28
27
26
25
23
22
20
19
18
17
16
16

Feels Like (°C)

14
14
15
16
18
20
21
22
22
24
25
26
26
24
23
22
21
19
19
17
16
15
14
14

Dew Point (°C)

14
13
14
14
14
14
14
13
13
14
13
13
12
11
11
12
12
12
12
12
11
12
11
12

Relative Humidity (%)

92
87
81
73
67
63
58
53
50
46
43
40
36
36
39
42
48
54
59
62
65
71
72
75

Pressure (mb)

1025
1025
1025
1025
1025
1025
1025
1024
1024
1023
1023
1022
1021
1021
1021
1021
1021
1022
1022
1022
1021
1021
1021
1020

Ozone (du)

337
338
338
338
338
338
337
336
333
331
331
330
330
330
330
331
332
331
330
329
328
327
325
326

Monday 6

Waning Gibbous 67%

23:51

11:56

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 OK
00 OK
01 OK
02 OK
03 OK
04 Bad

Sun - Rise: 04:51, Set: 21:20, Transit: 13:05. Moon - Rise: 23:51, Set: 11:56. Civil Dark: 22:07 - 04:05. Nautical Dark: 23:18 - 02:54. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

88
65
49
67
71
63
49
67
100
96
100
100
88
75
90
87
76
70
40
42
38
40
39
87

Low Clouds (% Sky Obscured)

7
14
19
31
31
41
31
33
44
31
52
16
18
12
21
9
0
0
0
0
0
0
0
5

Medium Clouds (% Sky Obscured)

40
30
19
28
35
27
26
12
20
22
29
19
19
41
36
65
55
59
32
38
38
40
39
37

High Clouds (% Sky Obscured)

83
22
3
4
2
12
10
67
100
86
100
100
72
35
66
46
39
3
14
7
3
4
2
29

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
3
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
7
9
10
12
12
13
14
14
13
14
14
14
14
13
11
9
7
8
9
8
8
8
8

Chance of Frost

Temperature (°C)

15
16
17
18
19
21
22
24
25
26
27
27
27
27
26
25
23
22
20
19
18
17
16
15

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
78
72
61
53
42
37
34
30
28
25
24
24
25
27
32
36
43
47
54
62
68
72
74

Pressure (mb)

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

Ozone (du)

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

Tuesday 7

Third Quarter 57%

00:03

13:15

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 Good
22 Good
23 Good
00 Good
01 Good
02 OK
03 OK
04 Good

Sun - Rise: 04:52, Set: 21:19, Transit: 13:05. Moon - Rise: 00:03, Set: 13:15. Civil Dark: 22:06 - 04:06. Nautical Dark: 23:17 - 02:56. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

90
93
92
89
90
89
88
89
88
89
87
81
77
67
50
41
3
3
2
4
7
25
23
16

Low Clouds (% Sky Obscured)

11
15
13
10
7
9
10
12
20
27
34
23
11
0
0
0
0
0
0
0
4
7
10
12

Medium Clouds (% Sky Obscured)

34
31
30
29
29
25
19
13
13
13
16
10
6
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

30
35
38
38
43
39
44
48
45
43
40
51
64
66
48
40
2
2
1
2
2
8
7
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
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

13
14
14
15
16
18
20
21
23
23
23
24
23
23
23
23
20
20
19
18
17
17
16
16

Dew Point (°C)

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

Relative Humidity (%)

74
75
67
55
46
41
37
33
31
30
29
27
27
26
27
30
36
46
53
58
63
66
71
74

Pressure (mb)

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

Ozone (du)

322
323
322
321
321
319
318
317
315
315
314
313
313
314
314
313
313
313
314
314
314
314
314
314

Wednesday 8

Waning Crescent 45%

00:18

14:37

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

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)

16
16
18
19
18
15
12
9
9
7
5
42
50
58
87
85
84
80
73
67
78
87
94
96

Low Clouds (% Sky Obscured)

12
13
14
14
15
13
9
6
4
2
0
4
8
11
10
6
2
3
5
6
8
11
15
20

Medium Clouds (% Sky Obscured)

0
0
2
1
1
1
1
0
0
0
0
5
10
15
31
31
32
35
38
33
49
57
66
71

High Clouds (% Sky Obscured)

0
0
2
3
3
3
3
3
4
4
3
39
35
35
60
46
38
28
20
15
22
31
43
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
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)

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

Chance of Frost

Temperature (°C)

16
17
18
19
21
23
25
26
28
29
29
30
30
30
30
26
25
23
22
21
20
19
19
19

Feels Like (°C)

17
18
18
19
21
23
25
26
28
28
29
30
29
29
28
27
28
28
27
26
25
19
19
19

Dew Point (°C)

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

Relative Humidity (%)

78
76
65
55
47
39
34
30
27
26
25
24
25
25
26
33
42
53
57
62
66
62
59
56

Pressure (mb)

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

Ozone (du)

315
314
315
315
316
316
316
317
318
318
319
319
320
321
322
323
323
324
325
327
328
329
330
331

Thursday 9

Waning Crescent 34%

00:38

16:05

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
03 Bad
04 Bad

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)

97
99
97
95
93
94
95
96
91
86
80
82
84
84
84
83
83
70
58
47
46
51
60
65

Low Clouds (% Sky Obscured)

23
26
25
22
18
14
13
9
9
8
8
8
9
16
13
13
14
14
15
15
16
16
16
21

Medium Clouds (% Sky Obscured)

74
79
70
59
43
38
33
32
27
22
18
20
22
24
24
28
27
23
27
26
23
24
20
20

High Clouds (% Sky Obscured)

47
51
56
74
74
76
77
72
54
41
35
55
70
82
79
76
72
53
34
14
19
25
32
35

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
3
3
1
5
4
0
3
4
2
7
7
6
13
12
3
5
11
4
9
14
13
15

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
4
4
4
4
4
4
4
3
3
2
5
8
12
10
10
9
8
8
7
6
6
6

Chance of Frost

Temperature (°C)

19
20
20
22
23
24
25
27
28
28
29
29
28
27
27
25
23
21
20
19
18
18
17
17

Feels Like (°C)

18
18
17
20
20
19
20
21
21
27
27
27
28
29
31
25
24
23
22
21
20
17
18
19

Dew Point (°C)

10
9
9
8
7
6
6
6
6
5
5
4
6
7
9
11
12
13
13
14
14
15
15
15

Relative Humidity (%)

53
49
46
41
36
31
28
27
24
22
21
19
23
27
33
40
49
60
65
71
77
82
86
90

Pressure (mb)

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

Ozone (du)

331
331
331
331
332
332
332
331
331
332
332
333
333
334
334
334
334
335
335
336
337
337
338
338

Friday 10

Waning Crescent 23%

01:08

17:35

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

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)

75
85
85
85
80
84
86
91
89
84
81
70
57
47
44
44
44
49
54
58

Low Clouds (% Sky Obscured)

17
21
19
16
17
12
10
10
7
8
10
15
17
19
14
13
7
9
11
12

Medium Clouds (% Sky Obscured)

25
30
29
23
18
12
6
0
4
7
11
8
6
3
6
10
14
10
5
0

High Clouds (% Sky Obscured)

37
40
40
46
46
62
75
84
83
78
73
51
34
21
24
29
32
41
46
49

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

15
14
20
18
1
6
6
0
0
0
0
1
1
0
0
0
0
2
3
4

Precipitation Amount (mm)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

15
14
14
13
12
11
10
10
9
8
8
7
7
7
6
7
8
9
10
11

Relative Humidity (%)

83
79
73
61
51
42
38
35
31
31
30
29
29
30
31
37
43
52
60
69

Pressure (mb)

1015
1015
1015
1015
1015
1015
1014
1014
1014
1014
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013

Ozone (du)

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

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

Generated: 04/07/26 04:39:13. Forecast: 04/07/26 to 10/07/26. Timezone: UTC+1.00