Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 7

Waning Gibbous 69%

02:25

08:51

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

Sun - Rise: 06:18, Set: 19:46, Transit: 13:02. Moon - Rise: 02:25, Set: 08:51. Civil Dark: 20:21 - 05:43. Nautical Dark: 21:04 - 05:00. Astro Dark: 21:51 - 04:13

Total Clouds (% Sky Obscured)

0
2
0
4
3
0
33
36
35
21
23
48
34
27
15
5
27
1
2
21
7
2
0
0

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
21
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
4
2
0
18
15
12
2
0
0
0
4
4
5
7
1
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
2
0
4
3
0
33
36
29
10
23
31
34
27
12
5
27
1
2
2
7
2
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
1
3
9
0
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)

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

Chance of Frost

Temperature (°C)

10
10
10
9
9
9
8
8
7
8
9
12
14
17
19
21
22
23
23
23
23
21
19
17

Feels Like (°C)

9
9
9
8
8
6
6
5
5
6
9
11
14
16
18
20
21
22
24
24
23
22
19
17

Dew Point (°C)

7
7
7
6
6
6
6
6
5
5
6
7
7
9
10
11
11
12
14
15
16
17
15
14

Relative Humidity (%)

80
80
81
82
84
84
84
85
84
84
78
70
62
59
54
52
51
51
54
58
67
75
80
81

Pressure (mb)

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

Ozone (du)

355
357
357
357
356
354
352
349
348
347
346
341
341
342
345
347
348
349
348
347
347
350
355
356

Wednesday 8

Waning Gibbous 59%

03:11

09:51

22 OK
23 OK
00 Bad
01 OK
02 Good
03 OK
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 Bad
21 Bad

Sun - Rise: 06:16, Set: 19:48, Transit: 13:02. Moon - Rise: 03:11, Set: 09:51. Civil Dark: 20:23 - 05:41. Nautical Dark: 21:06 - 04:58. Astro Dark: 21:53 - 04:10

Total Clouds (% Sky Obscured)

0
0
1
2
4
38
92
92
100
100
100
100
100
100
59
100
99
93
96
63
100
77
91
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
9
6
0
7
0
0
0
0
0
13
34
43
73
56
27
27
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
27
38
93
86
44
34
45
34
70
88
0
3
2
3
0

High Clouds (% Sky Obscured)

0
0
1
2
4
38
53
55
100
100
100
100
99
100
35
99
96
89
85
54
100
69
91
100

ISS Passover

Visibility (miles)

9
9
7
3
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
1
6
20
63
63
100
100
100
1
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
Very 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 (%)

27
28
47
22
1
1
0
0
0
0
0
2
0
0
0
0
6
23
24
3
0
0
0
0

Precipitation Amount (mm)

0
0
0.3
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
5
5
5
5
5
5
6
5
6
8
10
11
13
15
16
16
17
19
15
13
12
12

Chance of Frost

Temperature (°C)

16
15
14
13
12
12
11
11
10
10
11
13
14
16
17
18
17
16
15
14
12
12
10
8

Feels Like (°C)

17
16
15
14
13
11
11
10
10
8
9
11
11
13
14
14
12
12
11
9
8
8
5
4

Dew Point (°C)

14
14
13
13
12
11
10
9
9
8
9
10
10
11
11
11
9
10
11
10
8
7
5
3

Relative Humidity (%)

86
92
93
96
96
95
91
88
88
88
84
82
74
69
65
63
59
65
74
78
76
73
69
67

Pressure (mb)

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

Ozone (du)

358
357
356
355
354
354
354
353
352
354
356
357
357
357
359
363
367
371
373
379
384
388
388
388

Thursday 9

Waning Gibbous 50%

03:46

11:00

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

Sun - Rise: 06:14, Set: 19:50, Transit: 13:02. Moon - Rise: 03:46, Set: 11:00. Civil Dark: 20:25 - 05:38. Nautical Dark: 21:08 - 04:55. Astro Dark: 21:56 - 04:07

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
91
69
88
100
100
100
99
94
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
9
1
1
0
28
21
7
13
3
1
1
12

Medium Clouds (% Sky Obscured)

0
20
18
72
100
95
99
63
89
90
98
91
65
24
40
18
78
95
94
100
100
95
90
80

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
98
98
70
77
43
51
100
100
100
95
60
100
100
100
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 (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
6
5
5
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)

9
11
10
9
8
7
6
6
4
2
2
3
5
7
8
9
9
10
11
12
12
12
12
10

Chance of Frost

Temperature (°C)

7
6
6
5
5
4
4
4
4
4
5
6
8
9
10
11
12
12
12
12
11
10
9
9

Feels Like (°C)

3
1
1
0
1
1
1
1
2
2
3
3
4
5
6
7
8
8
8
7
6
5
4
4

Dew Point (°C)

2
1
-1
0
-1
-1
-1
0
0
0
0
0
0
-0
-1
-1
-1
0
1
2
1
-0
1
1

Relative Humidity (%)

70
66
65
70
69
68
71
75
75
75
71
65
60
52
47
44
42
43
47
52
51
50
56
60

Pressure (mb)

1022
1023
1023
1024
1024
1023
1023
1023
1023
1023
1023
1023
1023
1022
1021
1020
1019
1018
1017
1016
1015
1014
1014
1013

Ozone (du)

384
379
378
375
372
367
365
364
363
361
362
361
359
358
356
355
354
353
353
353
353
351
351
351

Friday 10

Third Quarter 40%

04:11

12:16

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

Sun - Rise: 06:11, Set: 19:51, Transit: 13:01. Moon - Rise: 04:11, Set: 12:16. Civil Dark: 20:26 - 05:36. Nautical Dark: 21:10 - 04:53. Astro Dark: 21:58 - 04:04

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
95
89
82
86
90
95
96
98
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
15
30
61
80
84
90
92
96
100
84
70
50
42
42
52
50
43
37
29
25
18

Medium Clouds (% Sky Obscured)

56
12
2
31
20
29
37
47
52
52
82
88
86
84
81
82
82
81
92
97
91
87
73
63

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
76
53
29
46
52
68
78
88
100
100
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 (%)

3
1
0
0
0
0
9
6
3
6
21
9
18
27
31
16
5
2
5
11
2
5
6
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
13
13
12
11
11
10
9
9
9
8
11
12
13
16
15
17
18
15
14
13
12
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

4
3
3
3
4
4
4
5
6
6
7
8
7
6
7
6
7
6
4
5
5
4
3
2

Dew Point (°C)

1
2
2
2
3
4
4
5
6
7
8
9
9
7
7
6
5
3
6
3
3
2
1
2

Relative Humidity (%)

62
64
64
65
68
74
75
77
81
85
90
93
88
81
77
67
61
54
67
57
62
62
61
69

Pressure (mb)

1012
1011
1010
1008
1007
1007
1006
1005
1004
1004
1004
1004
1004
1004
1005
1005
1005
1005
1006
1006
1007
1007
1008
1009

Ozone (du)

353
352
351
352
350
349
350
351
352
351
353
354
355
356
355
355
357
358
359
361
365
370
377
383

Saturday 11

Waning Crescent 30%

04:30

13:35

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
16 Bad
17 Bad
18 Bad
19 Bad
20 OK
21 Good

Sun - Rise: 06:09, Set: 19:53, Transit: 13:01. Moon - Rise: 04:30, Set: 13:35. Civil Dark: 20:28 - 05:34. Nautical Dark: 21:12 - 04:50. Astro Dark: N/A - 04:01

Total Clouds (% Sky Obscured)

91
85
76
70
54
63
65
62
64
68
86
86
90
83
76
84
92
100
83
65
47
33
19
6

Low Clouds (% Sky Obscured)

30
39
53
56
54
51
51
49
47
48
49
50
54
58
62
65
69
72
64
56
47
32
16
0

Medium Clouds (% Sky Obscured)

65
63
0
0
0
0
5
11
16
26
36
46
36
25
16
26
31
35
24
14
1
1
1
1

High Clouds (% Sky Obscured)

72
43
20
15
3
15
10
12
15
1
1
0
0
0
1
1
0
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
8
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
1
4
6
32
42
42
68
70
73
65
53
42
31
20
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

12
12
12
13
13
12
11
11
12
12
13
13
15
14
15
13
13
13
13
12
11
11
9
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

1
1
1
1
0
2
1
1
1
1
3
3
5
5
6
7
6
6
6
6
6
7
6
6

Dew Point (°C)

2
2
1
1
1
2
2
2
2
2
3
4
4
5
5
6
6
6
6
5
5
5
5
4

Relative Humidity (%)

72
72
72
72
72
75
76
76
78
76
74
74
66
68
65
68
68
68
68
69
69
71
74
78

Pressure (mb)

1009
1009
1009
1009
1010
1010
1010
1010
1010
1010
1010
1011
1011
1011
1011
1012
1012
1012
1012
1013
1013
1014
1014
1015

Ozone (du)

382
379
379
379
382
386
392
396
395
395
396
398
401
405
418
437
450
463
475
474
473
472
468
464

Sunday 12

Waning Crescent 20%

04:45

14:55

22 Good
23 Good
00 Good
01 OK
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 Bad
21 Bad

Sun - Rise: 06:07, Set: 19:55, Transit: 13:01. Moon - Rise: 04:45, Set: 14:55. Civil Dark: 20:30 - 05:31. Nautical Dark: 21:14 - 04:47. Astro Dark: 22:01 - 03:58

Total Clouds (% Sky Obscured)

3
1
0
26
53
79
71
63
50
66
84
98
96
92
92
93
96
100
98
96
93
83
63
50

Low Clouds (% Sky Obscured)

0
0
0
6
12
17
21
24
23
36
55
69
69
69
73
87
94
100
93
86
79
68
56
45

Medium Clouds (% Sky Obscured)

1
1
0
7
13
28
28
25
20
32
45
64
66
68
74
87
96
100
87
73
60
51
43
50

High Clouds (% Sky Obscured)

1
1
0
2
3
3
3
2
0
5
10
14
42
69
92
93
96
95
63
32
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
1
0
7
16
34
52
71
91
95
95
89
70
47
16

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.6
0.7
0.8
0.6
0.3
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

7
6
5
5
4
4
4
4
4
4
6
7
9
10
11
12
11
11
10
10
10
10
10
9

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
83
86
86
88
89
91
89
89
88
79
73
66
60
54
48
54
59
67
66
66
65
69
74

Pressure (mb)

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

Ozone (du)

460
460
459
459
456
453
450
448
445
443
440
438
435
432
429
426
426
425
425
424
423
421
420
419

Monday 13

Waning Crescent 12%

04:58

16:16

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

Sun - Rise: 06:05, Set: 19:56, Transit: 13:01. Moon - Rise: 04:58, Set: 16:16. Civil Dark: 20:32 - 05:29. Nautical Dark: 21:16 - 04:45. Astro Dark: 22:03 - 03:55

Total Clouds (% Sky Obscured)

33
19
5
23
44
61
53
47
45
58
72
86
89
92
93
83
73
69
77
77
78

Low Clouds (% Sky Obscured)

30
19
5
23
41
57
51
45
39
58
72
86
88
87
87
75
59
46
53
55
59

Medium Clouds (% Sky Obscured)

33
19
5
23
44
57
42
45
43
42
40
45
36
18
0
0
0
0
3
10
18

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
1
1
2
9
15
20
16
10
4
3
2
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

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

Precipitation Probability (%)

13
14
14
19
19
16
14
10
3
4
3
1
10
11
5
8
8
2
3
3
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
79
82
84
83
81
81
81
81
81
78
75
73
69
67
64
65
67
69
70
73

Pressure (mb)

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

Ozone (du)

417
412
407
402
398
394
390
390
390
390
387
384
381
377
373
369
366
364
361
360
359

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

Generated: 07/04/26 22:55:08. Forecast: 07/04/26 to 13/04/26. Timezone: UTC+1.00