Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 1

Waning Gibbous 97%

23:02

05:36

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
16 Bad
17 Bad
18 Bad

Sun - Rise: 04:46, Set: 21:10, Transit: 12:58. Moon - Rise: 23:02, Set: 05:36. Civil Dark: 21:56 - 04:00. Nautical Dark: 23:05 - 02:50. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

88
91
93
94
100
100
100
100
100
100
100
100
100
98
100
100
100
100
100
100
100
100
96
51

Low Clouds (% Sky Obscured)

85
83
78
78
71
81
78
81
88
79
89
68
68
70
64
62
60
69
77
66
56
52
28
51

Medium Clouds (% Sky Obscured)

79
91
93
94
96
92
100
100
94
100
35
100
81
63
29
11
7
5
11
71
85
32
10
2

High Clouds (% Sky Obscured)

88
91
93
94
100
100
100
100
100
100
100
100
76
92
100
100
60
55
55
57
48
38
38
10

ISS Passover

Visibility (miles)

9
9
9
9
2
2
4
4
0
1
9
9
6
8
9
3
9
9
4
9
8
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

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

Precipitation Probability (%)

95
95
95
95
95
95
95
95
95
95
43
19
45
65
84
88
60
57
60
60
56
48
43
45

Precipitation Amount (mm)

0
0
0.3
0.9
1.2
0.4
0.8
1.1
2.9
1.1
0
0
0
0.3
0.6
0.6
0.2
0
0.2
0.2
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

17
17
16
16
15
15
15
15
15
15
15
15
15
16
16
17
18
18
19
19
19
19
19
18

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
79
82
86
96
98
98
95
96
96
96
95
95
92
89
86
83
78
69
68
68
64
65
62

Pressure (mb)

1010
1010
1009
1008
1008
1007
1006
1005
1003
1003
1003
1003
1003
1003
1003
1003
1003
1003
1003
1003
1003
1003
1003
1003

Ozone (du)

348
348
349
352
354
357
360
363
364
368
377
377
378
382
384
389
396
396
398
400
400
400
399
399

Tuesday 2

Waning Gibbous 93%

23:44

06:38

19 Bad
20 Bad
21 Bad
22 OK
23 OK
00 Good
01 Good
02 OK
03 OK
04 OK
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

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)

31
61
51
24
21
7
9
26
32
41
63
96
53
52
97
100
100
100
99
100
100
84
84
87

Low Clouds (% Sky Obscured)

31
39
34
24
21
7
9
26
32
41
55
66
49
43
56
50
43
100
99
100
100
36
54
53

Medium Clouds (% Sky Obscured)

4
61
51
3
0
0
0
0
0
0
0
0
3
0
27
91
39
41
48
68
30
45
39
39

High Clouds (% Sky Obscured)

3
50
3
0
0
0
0
0
0
2
51
81
30
45
92
100
98
6
65
70
0
0
0
8

ISS Passover

Visibility (miles)

9
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
2
9
5
5
4

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

Precipitation Probability (%)

35
27
17
3
0
0
0
0
0
0
0
0
0
0
1
5
15
77
95
85
41
74
68
68

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
1.5
0.6
0
0.6
0.4
0.5

Wind Speed/Direction (mph)

12
11
11
9
8
8
8
8
8
8
8
9
11
12
14
16
14
19
17
20
18
16
18
17

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
82
86
86
92
92
95
95
96
96
96
93
89
83
75
71
75
66
87
93
95
93
89
86

Pressure (mb)

1004
1005
1005
1006
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1006
1006
1005
1004
1003
1002
1001
1000
1000

Ozone (du)

400
399
398
400
391
378
372
369
368
365
362
360
357
353
351
350
356
359
361
357
364
367
369
369

Wednesday 3

Waning Gibbous 88%

00:15

07:49

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
16 Bad
17 Bad
18 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)

90
100
100
100
100
100
100
81
77
80
86
66
62
83
92
82
69
88
86
86
83
72
87
79

Low Clouds (% Sky Obscured)

78
48
55
52
72
63
61
51
70
70
67
66
56
53
53
65
55
65
67
70
73
52
62
41

Medium Clouds (% Sky Obscured)

59
100
100
100
100
100
100
35
14
1
10
5
4
58
71
18
21
29
27
24
26
29
31
33

High Clouds (% Sky Obscured)

57
100
100
100
0
54
100
55
42
2
4
0
0
0
0
23
0
0
1
9
0
30
61
79

ISS Passover

Visibility (miles)

5
6
9
9
7
9
4
9
9
9
9
9
9
9
9
9
9
5
8
6
6
8
7
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

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

Precipitation Probability (%)

51
39
31
55
38
64
95
47
32
16
1
1
2
38
48
47
51
56
55
64
67
65
70
73

Precipitation Amount (mm)

0.3
0
0
0.3
0
0.3
1.2
0
0
0
0
0
0
0
0
0
0
0.2
0
0.3
0.3
0.3
0.3
0.4

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
89
92
93
92
90
93
89
93
93
92
93
89
86
89
89
70
66
65
66
72
72
73
78

Pressure (mb)

999
999
999
999
998
998
997
997
997
997
997
997
997
997
998
998
998
998
999
999
999
999
1000
1000

Ozone (du)

368
368
371
378
390
401
403
405
399
396
395
397
397
398
399
401
401
401
401
400
403
406
408
408

Thursday 4

Waning Gibbous 81%

00:38

09:04

19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 OK
04 Bad
05 OK
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

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)

76
84
86
86
83
83
73
64
22
40
36
50
59
67
72
76
97
98
99
99
100
100
100
100

Low Clouds (% Sky Obscured)

44
49
60
69
63
59
43
29
9
8
3
1
21
41
61
47
32
20
29
44
57
66
56
72

Medium Clouds (% Sky Obscured)

41
56
61
57
52
30
21
13
6
12
18
25
32
41
36
43
42
98
99
90
38
35
35
100

High Clouds (% Sky Obscured)

64
35
0
0
0
5
0
0
0
0
1
1
2
4
4
15
61
74
82
89
100
100
99
99

ISS Passover

Visibility (miles)

7
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

Very Light Rain
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 (%)

59
43
36
29
26
7
6
3
0
0
0
0
0
0
0
1
0
0
5
7
9
11
11
18

Precipitation Amount (mm)

0.3
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
86
90
92
92
92
91
91
90
93
93
91
85
79
70
60
54
50
47
45
45
47
50
53

Pressure (mb)

1001
1002
1003
1004
1004
1005
1005
1006
1007
1007
1008
1009
1010
1010
1011
1011
1011
1012
1012
1012
1012
1012
1012
1013

Ozone (du)

407
403
396
396
395
395
395
396
396
394
387
383
380
379
376
372
370
369
372
372
373
372
372
371

Friday 5

Waning Gibbous 72%

00:55

10:19

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
16 Bad
17 Bad
18 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)

100
100
100
94
81
80
79
79
87
86
81
78
70
82
94
99
100
100
92
83
75
75
76
77

Low Clouds (% Sky Obscured)

55
29
4
8
16
25
33
41
49
54
59
64
51
49
46
60
75
89
79
68
58
64
67
67

Medium Clouds (% Sky Obscured)

84
80
99
88
44
41
39
36
37
32
29
29
61
60
71
79
87
95
92
83
75
66
45
35

High Clouds (% Sky Obscured)

99
100
100
61
29
0
5
9
13
9
9
4
70
82
93
70
42
15
13
11
9
6
5
0

ISS Passover

Visibility (miles)

7
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
Very Light Rain
None
None
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None

Precipitation Probability (%)

23
5
0
1
1
0
4
5
4
6
5
2
52
50
46
75
92
95
95
95
87
67
52
38

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.2
0
0
0.4
0.6
0.7
0.9
0.7
0.5
0.3
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

67
76
79
83
87
88
91
91
91
91
91
87
81
75
70
66
61
58
54
52
52
51
54
57

Pressure (mb)

1013
1013
1014
1014
1014
1014
1014
1014
1014
1014
1015
1015
1015
1011
1010
1010
1009
1009
1008
1008
1008
1007
1008
1009

Ozone (du)

371
371
373
374
375
375
378
379
379
376
375
376
377
376
375
373
375
376
378
385
392
399
396
393

Saturday 6

Waning Gibbous 62%

01:09

11:35

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
16 Bad
17 Bad
18 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)

80
83
86
74
63
52
62
75
86
86
84
82
77
73
69
77
84
90
80
72
64
68
72
76

Low Clouds (% Sky Obscured)

59
53
46
42
39
36
51
63
80
82
76
70
69
69
69
66
71
76
65
54
43
32
20
12

Medium Clouds (% Sky Obscured)

33
24
14
23
39
52
39
37
55
51
39
26
25
26
36
48
47
42
31
19
6
9
11
11

High Clouds (% Sky Obscured)

10
20
23
19
18
15
12
12
7
14
27
39
39
54
40
32
28
25
34
43
46
45
44
42

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 (%)

33
24
12
6
1
0
1
0
0
0
0
0
0
0
0
6
8
6
16
18
17
16
15
12

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

13
12
12
13
12
12
11
8
8
8
8
8
8
10
10
11
11
12
12
16
16
16
16
17

Dew Point (°C)

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

Relative Humidity (%)

61
65
71
77
79
81
84
85
90
93
90
88
84
79
74
69
68
66
64
63
62
61
63
65

Pressure (mb)

1010
1011
1011
1012
1013
1013
1013
1014
1015
1015
1016
1017
1017
1018
1018
1019
1019
1019
1020
1020
1020
1020
1020
1020

Ozone (du)

391
387
383
379
377
376
375
372
370
367
366
364
363
362
361
359
357
355
353
352
351
351
350
349

Sunday 7

Waning Gibbous 52%

01:21

12:52

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

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)

83
90
99
100
100
100
99
98
94
92
92
92
92
92
90
90
89
87

Low Clouds (% Sky Obscured)

9
5
0
17
34
54
68
79
89
72
61
54
50
45
41
55
71
84

Medium Clouds (% Sky Obscured)

11
12
12
22
30
45
67
80
89
90
92
92
84
75
64
49
32
16

High Clouds (% Sky Obscured)

58
72
99
99
100
100
71
41
12
9
5
1
1
2
2
20
38
55

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

10
7
0
26
39
53
58
61
64
58
50
32
28
22
14
15
15
18

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

68
72
78
83
86
87
89
89
89
89
86
83
80
78
76
73
72
72

Pressure (mb)

1020
1020
1020
1020
1020
1020
1020
1020
1020
1019
1019
1019
1019
1019
1019
1019
1019
1020

Ozone (du)

349
350
351
352
352
352
351
350
349
348
348
348
347
347
347
347
346
345

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

Generated: 01/06/26 19:49:13. Forecast: 01/06/26 to 07/06/26. Timezone: UTC+1.00