Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 16

Waxing Crescent 14%

08:57

22:27

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

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)

16
18
29
18
44
22
3
3
1
0
2
4
28
45
41
43
47
28
12
32
28
5
37
45

Low Clouds (% Sky Obscured)

16
18
23
0
0
0
0
0
0
0
0
4
27
45
41
37
21
0
0
0
0
0
5
5

Medium Clouds (% Sky Obscured)

6
18
28
18
44
21
2
2
1
0
0
0
0
0
0
21
36
24
9
27
24
0
25
27

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
2
1
2
0
0
1
0
2
3
5
5
5
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
11
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)

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

Chance of Frost

Temperature (°C)

27
27
26
26
24
23
21
19
18
17
16
15
15
14
14
15
16
18
20
22
23
25
26
26

Feels Like (°C)

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

Dew Point (°C)

3
3
5
7
7
9
11
12
13
13
12
13
13
12
12
11
9
7
6
6
6
5
4
4

Relative Humidity (%)

21
21
25
30
33
42
54
62
72
77
79
83
87
90
90
78
63
50
40
37
32
27
24
23

Pressure (mb)

1018
1017
1017
1017
1017
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1017
1017
1017
1017
1016

Ozone (du)

346
346
345
343
341
339
338
339
339
338
338
338
339
340
339
339
339
340
340
340
340
341
342
342

Friday 17

Waxing Crescent 14%

10:20

22:40

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

28
18
18
20
2
6
13
2
25
68
30
20
23
31
15
20
23
22
8
33
53
34
97
100

Low Clouds (% Sky Obscured)

15
15
18
19
0
6
13
0
14
5
6
18
23
31
14
20
23
22
8
33
33
4
34
57

Medium Clouds (% Sky Obscured)

13
3
0
0
0
0
0
0
5
43
2
0
0
0
0
0
0
0
0
0
10
26
43
100

High Clouds (% Sky Obscured)

0
0
0
4
2
1
3
2
10
32
30
4
0
0
2
2
0
0
0
4
19
8
55
60

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)

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

Chance of Frost

Temperature (°C)

26
26
26
25
24
21
19
18
17
16
15
14
14
13
13
14
15
17
19
20
21
22
22
23

Feels Like (°C)

25
25
25
24
22
19
19
17
16
15
14
12
14
14
14
13
14
16
18
19
20
20
21
20

Dew Point (°C)

3
2
2
2
5
9
12
12
12
12
12
12
12
12
12
11
8
6
3
2
2
2
3
3

Relative Humidity (%)

21
20
21
21
28
46
60
69
75
80
83
84
89
92
93
80
62
48
36
29
26
27
28
28

Pressure (mb)

1016
1016
1016
1016
1016
1017
1018
1019
1019
1020
1019
1019
1019
1019
1020
1020
1020
1020
1020
1020
1020
1020
1019
1019

Ozone (du)

341
338
338
337
338
337
337
336
335
331
329
330
330
330
329
332
334
334
335
336
336
337
337
338

Saturday 18

Waxing Crescent 23%

11:39

22:52

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

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)

80
79
46
41
68
86
49
50
14
0
8
11
10
27
5
16
50
71
23
25
29
25
23
43

Low Clouds (% Sky Obscured)

61
47
36
35
60
70
27
11
8
0
5
5
3
3
0
0
0
18
23
23
28
24
23
22

Medium Clouds (% Sky Obscured)

80
73
23
17
65
81
24
24
2
0
0
0
0
0
0
0
0
0
2
2
2
0
0
1

High Clouds (% Sky Obscured)

60
42
0
0
0
0
0
0
0
0
0
0
2
20
3
15
49
57
5
5
2
2
2
14

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 (%)

1
3
1
14
6
3
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
15
14
15
12
9
10
10
9
8
8
7
8
8
9
10
10
11
11
11
11
11
11
11

Chance of Frost

Temperature (°C)

22
22
21
21
19
17
17
15
14
13
12
12
11
11
11
12
14
15
16
18
19
20
21
21

Feels Like (°C)

19
17
17
16
18
15
14
14
13
13
12
11
10
9
9
10
12
12
12
15
16
17
18
18

Dew Point (°C)

3
9
11
12
14
12
12
13
12
12
11
11
10
10
10
9
9
8
7
4
3
2
1
0

Relative Humidity (%)

29
45
50
57
70
72
75
85
86
90
93
95
95
93
91
83
72
61
52
40
33
29
25
24

Pressure (mb)

1019
1020
1020
1020
1021
1022
1022
1023
1023
1023
1023
1023
1023
1024
1024
1024
1025
1025
1025
1025
1025
1025
1024
1024

Ozone (du)

341
350
360
360
360
361
362
362
360
359
354
349
347
344
344
343
344
347
348
347
347
347
348
348

Sunday 19

Waxing Crescent 32%

12:55

23:03

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

Sun - Rise: 05:07, Set: 21:08, Transit: 13:07. Moon - Rise: 12:55, Set: 23:03. Civil Dark: 21:52 - 04:23. Nautical Dark: 22:55 - 03:21. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

64
27
23
17
10
4
16
26
31
25
18
9
18
25
27
37
22
18
19
22
24
25
26
28

Low Clouds (% Sky Obscured)

23
24
22
16
8
0
0
0
0
0
0
2
2
2
2
6
11
16
18
20
23
21
23
25

Medium Clouds (% Sky Obscured)

2
3
3
3
3
3
3
3
3
3
3
3
7
10
16
17
9
2
0
0
0
0
0
0

High Clouds (% Sky Obscured)

24
2
0
0
0
0
16
26
31
25
18
2
8
11
7
18
3
0
0
0
0
0
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
12
11
10
8
8
6
4
4
4
4
4
5
5
5
6
7
7
7
7
7
7
7

Chance of Frost

Temperature (°C)

22
22
21
21
19
17
15
15
14
13
12
12
11
12
12
13
14
16
18
19
20
21
22
23

Feels Like (°C)

18
17
18
18
16
15
13
13
13
12
11
11
10
10
10
12
12
14
16
17
19
20
21
21

Dew Point (°C)

1
1
2
2
1
2
2
3
4
4
4
4
3
3
3
2
1
-1
-2
-2
-1
-1
-2
-2

Relative Humidity (%)

24
26
27
28
28
34
40
45
51
55
57
56
56
56
54
47
39
31
27
24
23
22
20
19

Pressure (mb)

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

Ozone (du)

349
351
353
354
356
357
355
353
352
347
343
338
335
333
331
330
331
327
325
328
327
325
323
323

Monday 20

Waxing Crescent 43%

14:11

23:15

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

Sun - Rise: 05:08, Set: 21:07, Transit: 13:07. Moon - Rise: 14:11, Set: 23:15. Civil Dark: 21:51 - 04:24. Nautical Dark: 22:53 - 03:23. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

35
49
42
25
13
3
11
19
27
25
31
34
40
52
63
25
22
17
36
54
72
58
39
25

Low Clouds (% Sky Obscured)

26
42
24
14
6
2
9
16
23
15
15
15
18
29
41
25
22
17
33
35
38
36
35
25

Medium Clouds (% Sky Obscured)

4
9
13
10
7
1
11
19
26
24
24
21
24
28
32
0
0
0
3
7
9
7
4
0

High Clouds (% Sky Obscured)

3
6
7
3
1
0
0
0
0
0
0
0
2
2
2
3
3
2
2
1
1
3
7
12

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)

8
9
11
11
9
8
8
6
5
5
5
5
6
6
6
7
7
7
8
9
9
9
9
9

Chance of Frost

Temperature (°C)

24
23
22
22
21
19
17
16
15
15
15
14
14
13
14
14
16
18
20
21
23
24
25
26

Feels Like (°C)

22
21
19
19
19
18
16
16
15
15
15
14
13
12
13
13
13
14
15
15
15
16
24
23

Dew Point (°C)

-1
1
5
6
8
10
11
12
13
13
14
13
13
13
13
13
12
11
11
10
9
9
8
8

Relative Humidity (%)

19
23
31
36
44
57
66
77
85
90
95
96
95
96
96
90
77
65
57
49
42
36
34
32

Pressure (mb)

1026
1026
1026
1026
1027
1028
1028
1029
1029
1029
1029
1029
1029
1029
1029
1030
1029
1029
1029
1028
1028
1027
1027
1026

Ozone (du)

322
325
325
325
332
341
330
329
331
333
332
332
331
333
335
333
331
329
327
326
326
326
328
330

Tuesday 21

First Quarter 53%

15:27

23:29

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
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 05:09, Set: 21:06, Transit: 13:07. Moon - Rise: 15:27, Set: 23:29. Civil Dark: 21:49 - 04:26. Nautical Dark: 22:51 - 03:25. Astro Dark: N/A - 01:23

Total Clouds (% Sky Obscured)

48
69
89
93
97
100
98
97
95
93
92
91
93
95
98
91
84
77
71
67
62
70
78
83

Low Clouds (% Sky Obscured)

37
45
53
51
51
52
37
20
2
6
9
12
15
18
22
18
14
10
20
30
40
42
45
47

Medium Clouds (% Sky Obscured)

8
14
21
33
42
47
44
40
40
56
75
91
93
95
96
86
76
66
50
36
21
42
66
83

High Clouds (% Sky Obscured)

30
46
57
68
77
100
93
86
71
57
45
41
39
30
19
14
8
0
9
18
27
40
51
60

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
1
1
3
6
6
5
23
27
23

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

23
23
24
25
23
23
22
21
20
19
14
14
14
15
15
14
13
13
13
14
15
16
23
22

Dew Point (°C)

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

Relative Humidity (%)

31
32
34
36
42
48
55
59
62
67
68
69
72
73
73
74
65
57
50
46
41
38
43
48

Pressure (mb)

1026
1025
1025
1024
1024
1024
1024
1024
1024
1024
1023
1023
1022
1022
1021
1021
1021
1020
1020
1019
1019
1018
1018
1018

Ozone (du)

332
333
335
337
339
342
344
345
346
347
349
352
355
358
362
365
365
364
364
365
365
366
367
368

Wednesday 22

Waxing Gibbous 63%

No Rise

23:46

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 OK
10 OK
11 OK
12 OK

Sun - Rise: 05:11, Set: 21:04, Transit: 13:07. Moon - Rise: No Rise, Set: 23:46. Civil Dark: 21:48 - 04:28. Nautical Dark: 22:49 - 03:27. Astro Dark: 00:51 - 01:36

Total Clouds (% Sky Obscured)

80
76
71
73
76
77
78
76
76
68
54
48
55
57
61
48
37
30
25
24
24

Low Clouds (% Sky Obscured)

54
61
67
55
43
29
24
16
10
12
16
19
20
21
22
22
28
30
25
24
24

Medium Clouds (% Sky Obscured)

80
71
61
45
31
17
23
29
35
30
22
18
22
25
29
28
32
30
25
24
24

High Clouds (% Sky Obscured)

47
34
20
25
31
37
44
52
60
47
20
0
0
0
0
0
1
1
1
1
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

Fog (%)

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

Precipitation Probability (%)

26
28
33
56
53
5
9
11
0
0
0
0
0
0
0
1
1
1
2
1
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

16
14
13
12
10
8
7
6
5
6
6
6
6
6
6
6
7
7
8
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

22
21
21
21
15
15
15
15
15
14
13
13
13
13
13
12
14
14
14
15
15

Dew Point (°C)

13
13
13
13
13
12
12
12
12
12
12
12
12
12
12
12
11
9
7
6
5

Relative Humidity (%)

54
58
63
67
71
75
82
86
90
93
95
95
96
93
89
86
70
57
47
42
36

Pressure (mb)

1018
1018
1019
1019
1020
1020
1021
1021
1021
1022
1022
1022
1021
1022
1022
1022
1022
1021
1021
1021
1020

Ozone (du)

370
370
370
370
364
358
352
346
341
335
334
333
331
329
327
325
324
323
321
320
320

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

Generated: 16/07/26 16:05:25. Forecast: 16/07/26 to 22/07/26. Timezone: UTC+1.00