Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 2

Waning Gibbous 93%

23:44

06:38

20 Bad
21 Bad
22 Bad
23 OK
00 OK
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

Sun - Rise: 04:45, Set: 21:11, Transit: 12:59. Moon - Rise: 23:44, Set: 06:38. Civil Dark: 21:57 - 03:59. Nautical Dark: 23:07 - 02:48. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

78
69
54
22
31
44
64
73
73
77
79
91
100
100
98
100
100
100
66
93
85
61
80
80

Low Clouds (% Sky Obscured)

36
12
47
22
31
44
64
73
73
77
72
53
62
61
69
100
100
100
52
88
81
50
54
60

Medium Clouds (% Sky Obscured)

20
2
0
0
0
0
0
0
0
0
3
75
32
96
98
100
96
66
10
20
15
11
25
29

High Clouds (% Sky Obscured)

15
2
0
0
0
0
2
2
2
5
15
87
100
100
44
100
45
45
14
5
0
28
42
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
4
7
9
1
9
9
7
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
Light Rain
Light Rain
Light Rain
Very Light Rain
None
Very Light Rain
Light Rain
None
None
Very Light Rain

Precipitation Probability (%)

95
95
0
0
0
0
0
0
0
0
0
0
8
39
79
95
95
63
25
50
54
36
31
42

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.5
1.7
0.8
0.2
0
0.3
0.4
0
0
0.2

Wind Speed/Direction (mph)

10
9
8
9
10
10
10
10
9
9
10
12
12
13
15
14
15
17
19
17
17
17
18
17

Chance of Frost

Temperature (°C)

13
13
13
13
13
13
12
12
12
12
12
13
14
14
14
14
14
14
15
17
19
19
19
17

Feels Like (°C)

11
11
12
12
12
11
11
10
10
10
10
10
10
10
10
10
10
10
10
13
15
17
15
13

Dew Point (°C)

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

Relative Humidity (%)

87
89
92
92
95
95
96
96
96
95
95
90
84
73
64
84
89
95
95
96
86
77
75
81

Pressure (mb)

1004
1005
1005
1006
1006
1006
1006
1006
1006
1006
1006
1006
1006
1005
1004
1003
1002
1001
1000
999
998
998
998
998

Ozone (du)

402
402
400
389
386
384
380
374
369
363
361
357
355
353
352
350
351
354
358
362
367
375
380
391

Wednesday 3

Waning Gibbous 88%

00:15

07:49

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
16 Bad
17 Bad
18 Bad
19 Bad

Sun - Rise: 04:45, Set: 21:12, Transit: 12:59. Moon - Rise: 00:15, Set: 07:49. Civil Dark: 21:58 - 03:58. Nautical Dark: 23:09 - 02:47. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

91
84
64
91
81
95
95
95
90
88
93
88
100
99
93
93
100
88
93
94
75
87
88
51

Low Clouds (% Sky Obscured)

57
68
64
70
68
63
61
68
64
67
64
60
69
65
71
63
73
56
62
53
39
62
49
49

Medium Clouds (% Sky Obscured)

27
14
0
29
16
29
30
28
25
30
44
23
79
32
32
82
61
86
70
49
32
43
45
10

High Clouds (% Sky Obscured)

50
43
0
0
0
0
0
0
0
0
0
29
60
50
1
1
76
35
14
31
18
16
2
7

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

45
21
2
7
7
4
11
12
23
4
10
6
27
56
73
72
74
72
71
68
67
65
50
29

Precipitation Amount (mm)

0.4
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0.4
0.4
0.3
0.4
0.3
0.3
0.4
0
0

Wind Speed/Direction (mph)

16
16
15
15
15
15
15
15
15
14
14
15
16
16
18
18
17
16
16
16
17
16
17
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

12
12
11
11
10
9
9
9
9
9
9
9
10
9
10
11
12
12
11
11
12
12
13
12

Dew Point (°C)

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

Relative Humidity (%)

85
89
92
93
92
89
87
87
86
84
81
77
76
78
75
82
89
92
80
77
78
81
79
79

Pressure (mb)

998
998
998
997
997
996
996
995
995
994
994
994
994
994
994
994
994
995
995
996
996
997
998
999

Ozone (du)

393
395
398
399
400
400
400
401
401
403
405
407
407
407
406
405
404
403
402
401
403
403
402
401

Thursday 4

Waning Gibbous 81%

00:38

09:04

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 OK
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad

Sun - Rise: 04:44, Set: 21:13, Transit: 12:59. Moon - Rise: 00:38, Set: 09:04. Civil Dark: 22:00 - 03:57. Nautical Dark: 23:11 - 02:46. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

44
47
57
49
44
43
38
70
82
89
61
60
67
65
60
34
58
70
85
100
96
90
83
81

Low Clouds (% Sky Obscured)

44
44
51
49
44
43
38
49
67
73
42
36
49
50
45
34
33
29
23
25
30
35
29
33

Medium Clouds (% Sky Obscured)

5
5
14
4
7
3
4
69
82
85
61
60
67
57
27
3
12
21
29
46
45
45
44
46

High Clouds (% Sky Obscured)

3
23
31
3
3
0
0
2
2
6
11
2
2
2
2
2
24
47
72
90
72
54
36
30

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
7

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
0
0
0
0
0
0
0
0
0
0
1
1
6
2
3
0
0
2
2
6
16
23
24

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

78
80
83
83
86
89
92
95
93
91
80
77
72
66
56
52
47
45
47
50
49
56
65
66

Pressure (mb)

1000
1001
1001
1002
1003
1004
1004
1005
1006
1006
1007
1008
1008
1009
1010
1010
1010
1010
1011
1011
1011
1011
1011
1011

Ozone (du)

398
398
398
401
402
402
397
392
389
387
384
382
380
376
372
372
372
373
380
375
369
365
364
362

Friday 5

Waning Gibbous 72%

00:55

10:19

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
16 Bad
17 Bad
18 Bad
19 Bad

Sun - Rise: 04:43, Set: 21:14, Transit: 12:59. Moon - Rise: 00:55, Set: 10:19. Civil Dark: 22:01 - 03:56. Nautical Dark: 23:12 - 02:44. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

76
73
66
63
64
65
66
66
75
88
100
100
100
100
99
97
96
93
98
93
90
92
89
67

Low Clouds (% Sky Obscured)

36
10
6
4
1
15
10
5
5
10
15
11
15
14
16
21
19
30
48
54
51
48
47
27

Medium Clouds (% Sky Obscured)

44
38
25
14
30
30
35
55
68
75
78
72
85
97
98
95
68
41
45
41
44
81
49
37

High Clouds (% Sky Obscured)

17
5
14
23
36
37
41
43
64
82
100
100
78
60
43
28
10
28
57
80
57
29
1
1

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
3
8
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
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

4
0
0
0
0
2
18
24
40
46
25
22
19
16
16
16
16
12
14
10
19
20
15
9

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

75
78
80
83
83
81
78
81
84
91
95
95
86
78
74
80
69
70
58
61
52
55
61
74

Pressure (mb)

1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1011
1011
1011
1011
1011
1012
1012

Ozone (du)

360
361
361
364
365
367
369
370
369
371
372
375
374
374
375
376
375
377
379
380
382
382
381
379

Saturday 6

Waning Gibbous 62%

01:09

11:35

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

Sun - Rise: 04:43, Set: 21:15, Transit: 12:59. Moon - Rise: 01:09, Set: 11:35. Civil Dark: 22:02 - 03:56. Nautical Dark: 23:14 - 02:43. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

54
42
35
40
49
50
50
58
41
27
13
39
30
15
33
55
79
79
80
80
81
82
84
89

Low Clouds (% Sky Obscured)

15
5
7
14
21
14
7
0
0
0
0
39
30
8
11
14
16
29
41
53
52
49
38
36

Medium Clouds (% Sky Obscured)

28
15
18
19
22
16
11
6
6
9
8
0
0
0
5
11
13
14
12
15
13
10
4
30

High Clouds (% Sky Obscured)

9
1
1
0
0
12
23
56
41
22
3
5
7
8
11
12
15
16
17
17
32
54
71
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 (%)

7
0
0
0
0
0
0
0
0
0
0
35
16
0
7
10
13
13
12
11
10
7
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)

5
4
4
3
3
2
2
2
3
2
3
4
10
11
12
12
13
13
14
14
15
13
12
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

16
14
13
14
14
14
14
13
11
11
13
15
15
16
15
17
18
19
19
18
17
17
18
17

Dew Point (°C)

13
12
12
12
12
11
11
10
10
10
11
11
12
12
12
12
13
13
13
12
12
12
12
12

Relative Humidity (%)

78
83
83
90
92
90
92
92
92
92
89
83
79
74
71
70
68
67
64
60
58
60
64
68

Pressure (mb)

1012
1013
1013
1013
1014
1014
1014
1015
1015
1015
1016
1017
1014
1014
1015
1015
1016
1016
1016
1017
1017
1017
1018
1018

Ozone (du)

378
376
376
379
376
376
372
372
371
372
371
367
364
361
358
358
357
357
357
356
356
356
356
356

Sunday 7

Waning Gibbous 52%

01:21

12:52

20 Bad
21 Bad
22 Bad
23 OK
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

Sun - Rise: 04:42, Set: 21:16, Transit: 13:00. Moon - Rise: 01:21, Set: 12:52. Civil Dark: 22:03 - 03:55. Nautical Dark: 23:16 - 02:42. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

94
100
71
43
15
40
72
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
99
87

Low Clouds (% Sky Obscured)

37
35
24
13
2
24
47
71
74
74
74
81
87
93
93
96
98
95
91
87
81
74
69
61

Medium Clouds (% Sky Obscured)

56
82
71
43
15
40
72
93
94
96
98
96
93
87
80
77
73
83
92
100
96
94
93
72

High Clouds (% Sky Obscured)

89
97
71
43
15
40
72
100
100
100
100
97
91
91
94
97
100
81
69
54
54
59
69
59

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
8
7
6

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

Precipitation Probability (%)

1
0
0
0
0
1
3
3
8
9
6
36
51
64
64
63
59
63
71
83
94
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.3
0.2
0
0.2
0.3
0.6
0.7
0.8
0.9
0.8

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

17
16
15
14
13
13
13
13
13
13
13
14
15
16
17
17
17
17
16
16
16
16
15
15

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

73
79
87
86
86
87
86
84
84
84
84
84
78
70
65
68
74
78
83
87
93
93
95
95

Pressure (mb)

1019
1019
1020
1020
1020
1020
1019
1019
1019
1018
1018
1017
1017
1016
1016
1015
1015
1014
1014
1013
1013
1013
1013
1013

Ozone (du)

352
348
344
342
341
339
339
340
340
344
348
352
350
348
346
348
351
353
357
361
365
365
366
366

Monday 8

Third Quarter 41%

01:32

14:10

20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 OK
02 OK
03 Good
04 OK
05 OK
06 OK
07 OK
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 04:42, Set: 21:17, Transit: 13:00. Moon - Rise: 01:32, Set: 14:10. Civil Dark: 22:04 - 03:55. Nautical Dark: 23:17 - 02:41. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

69
52
50
48
46
33
20
7
19
29
41
46
58
69
69
70
72

Low Clouds (% Sky Obscured)

52
43
43
44
45
33
19
7
7
7
6
11
14
19
14
15
16

Medium Clouds (% Sky Obscured)

52
32
20
10
0
0
0
0
15
29
41
45
49
46
46
48
48

High Clouds (% Sky Obscured)

37
15
11
8
4
4
3
2
19
29
41
46
34
4
6
9
12

ISS Passover

Visibility (miles)

7
8
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

Precipitation Type

Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

73
33
23
15
8
7
5
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
95
96
95
95
93
91
91
91
88
85
84
76
68
61
56
52

Pressure (mb)

1014
1014
1015
1016
1016
1017
1017
1018
1019
1019
1020
1020
1020
1021
1021
1021
1021

Ozone (du)

373
379
385
386
386
387
387
387
386
379
372
365
361
357
354
352
349

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

Generated: 02/06/26 20:04:35. Forecast: 02/06/26 to 08/06/26. Timezone: UTC+1.00