Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 18

Waxing Crescent 1%

05:24

22:57

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

Sun - Rise: 05:00, Set: 21:03, Transit: 13:02. Moon - Rise: 05:24, Set: 22:57. Civil Dark: 21:48 - 04:14. Nautical Dark: 22:53 - 03:08. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

70
30
64
41
70
47
64
53
70
70
70
70
59
58
52
54
83
88
78
70
93
86
81
79

Low Clouds (% Sky Obscured)

35
63
74
42
54
38
43
5
3
13
18
26
31
33
35
40
44
59
66
57
84
76
30
58

Medium Clouds (% Sky Obscured)

89
71
69
63
53
45
45
48
43
33
15
2
3
2
37
39
50
69
25
52
55
27
52
39

High Clouds (% Sky Obscured)

37
7
7
53
63
60
60
80
50
16
2
8
3
2
1
3
2
2
0
0
0
0
0
0

ISS Passover

Visibility (miles)

-
-
-
-
-
-
-
-
-
-
-
-
-
9
9
9
9
9
9
9
9
9
8
6

Fog (%)

-
-
-
-
-
-
-
-
-
-
-
-
-
0
0
0
0
0
1
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

0
0
0
0
0
0
0
100
0
0
0
0
0
0
2
3
1
2
3
2
21
29
52
73

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

12
12
13
12
11
9
9
9
8
7
5
6
5
6
5
5
4
4
3
4
5
5
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

4
5
4
4
5
5
5
6
6
6
6
5
5
5
5
5
5
5
5
6
6
6
6
6

Relative Humidity (%)

64
60
55
54
55
58
57
66
75
78
83
86
87
93
93
94
94
94
93
88
88
80
74
70

Pressure (mb)

1008
1008
1008
1008
1008
1008
1007
1008
1008
1009
1009
1009
1009
1008
1008
1008
1008
1008
1008
1008
1009
1009
1009
1009

Ozone (du)

431
432
436
438
440
441
440
435
434
436
438
438
438
437
437
437
432
427
429
433
432
430
425
419

Tuesday 19

Waxing Crescent 5%

06:29

00:13

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
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 04:58, Set: 21:04, Transit: 13:02. Moon - Rise: 06:29, Set: 00:13. Civil Dark: 21:50 - 04:12. Nautical Dark: 22:56 - 03:05. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

82
71
81
62
72
72
98
91
87
99
97
89
96
98
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

70
65
52
40
39
1
57
45
11
26
31
37
70
77
73
86
91
85
100
100
100
100
83
85

Medium Clouds (% Sky Obscured)

44
2
52
37
52
35
70
86
87
93
93
76
89
96
100
100
100
100
70
87
88
31
78
100

High Clouds (% Sky Obscured)

7
34
38
0
3
54
58
32
46
49
9
10
8
13
17
100
100
100
34
100
18
14
100
100

ISS Passover

Visibility (miles)

6
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
2
1
1
1
1
1
3
5

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

Precipitation Probability (%)

69
66
57
44
40
35
35
11
16
1
0
4
17
40
54
94
95
95
95
95
57
37
16
33

Precipitation Amount (mm)

0.4
0.3
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0.5
1.7
1.7
1.1
1.1
0.2
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

10
10
10
11
13
11
11
10
9
8
7
6
6
6
6
5
5
5
6
6
6
6
8
9

Dew Point (°C)

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

Relative Humidity (%)

68
64
62
55
48
54
58
70
76
83
87
88
90
93
93
91
95
98
98
98
98
96
95
95

Pressure (mb)

1009
1009
1009
1008
1008
1008
1008
1008
1008
1009
1009
1009
1008
1008
1008
1007
1006
1005
1005
1004
1004
1004
1004
1003

Ozone (du)

409
403
399
400
395
391
386
383
379
377
380
379
376
375
374
378
380
386
394
394
397
396
394
393

Wednesday 20

Waxing Crescent 12%

07:53

01:04

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
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 04:57, Set: 21:06, Transit: 13:02. Moon - Rise: 07:53, Set: 01:04. Civil Dark: 21:51 - 04:11. Nautical Dark: 22:59 - 03:03. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
96
99
94
97
67
87
75
96
100
90
88
92
92
75
84
98
68
66
59
67
86
93
68

Low Clouds (% Sky Obscured)

41
64
78
54
59
54
49
47
49
48
48
44
42
63
64
60
84
58
61
55
50
64
59
45

Medium Clouds (% Sky Obscured)

99
89
94
48
89
26
71
63
76
63
62
49
72
47
26
57
85
18
31
47
21
38
37
25

High Clouds (% Sky Obscured)

88
21
38
50
44
54
52
40
44
75
40
16
44
50
3
0
0
3
34
1
0
0
0
0

ISS Passover

Visibility (miles)

9
4
8
6
5
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

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

Precipitation Probability (%)

71
76
66
80
65
40
22
16
9
10
5
5
35
44
45
61
74
35
15
21
13
11
20
22

Precipitation Amount (mm)

0.4
0.4
0.2
0.4
0.2
0
0
0
0
0
0
0
0
0.2
0
0
0.4
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
84
80
76
75
74
74
76
77
80
80
81
81
81
83
84
81
88
88
86
83
72
70
74

Pressure (mb)

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

Ozone (du)

388
387
388
389
390
392
391
389
389
395
397
397
398
397
392
389
386
381
376
377
378
376
367
361

Thursday 21

Waxing Crescent 21%

09:24

01:37

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
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 04:55, Set: 21:07, Transit: 13:02. Moon - Rise: 09:24, Set: 01:37. Civil Dark: 21:53 - 04:09. Nautical Dark: 23:01 - 03:00. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

76
73
83
92
100
100
91
91
92
93
77
96
99
100
100
100
100
100
99
97
94
92
90
79

Low Clouds (% Sky Obscured)

59
42
33
25
5
32
61
65
69
65
52
38
23
43
35
57
56
48
51
49
40
38
45
59

Medium Clouds (% Sky Obscured)

22
34
52
60
42
31
55
55
60
61
63
84
87
92
96
100
99
98
98
94
90
86
75
34

High Clouds (% Sky Obscured)

0
0
0
3
89
99
52
52
36
25
32
54
79
100
100
98
92
89
82
55
28
3
4
10

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 (%)

8
7
28
12
23
26
8
0
1
0
1
2
0
4
7
21
31
37
29
33
31
16
18
16

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

68
64
61
57
58
77
77
75
76
80
83
84
84
84
79
81
77
86
89
87
83
77
72
69

Pressure (mb)

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

Ozone (du)

356
359
357
351
350
350
348
347
345
346
346
346
347
344
343
343
343
344
343
343
343
342
342
343

Friday 22

Waxing Crescent 31%

10:55

01:58

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 OK
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 04:54, Set: 21:09, Transit: 13:02. Moon - Rise: 10:55, Set: 01:58. Civil Dark: 21:55 - 04:07. Nautical Dark: 23:04 - 02:57. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

85
95
96
97
93
85
74
68
82
91
94
95
58
47
73
32
69
82
95
90
96
95
93
95

Low Clouds (% Sky Obscured)

70
77
85
91
79
56
21
15
9
4
7
10
13
8
6
1
1
1
1
0
2
3
3
5

Medium Clouds (% Sky Obscured)

50
58
27
31
32
35
33
38
46
52
47
77
16
11
13
18
29
34
53
47
39
28
38
46

High Clouds (% Sky Obscured)

5
35
35
35
22
24
28
25
28
35
56
74
57
34
67
11
65
78
92
84
88
86
87
91

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 (%)

2
3
6
13
9
15
13
4
3
0
4
6
5
3
2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

68
66
67
66
67
66
65
70
77
82
82
79
82
86
87
90
87
79
77
71
68
66
62
61

Pressure (mb)

1024
1024
1024
1024
1024
1024
1024
1024
1024
1025
1025
1025
1025
1025
1024
1024
1024
1024
1024
1024
1024
1024
1024
1023

Ozone (du)

342
341
340
340
340
339
338
338
339
339
341
346
352
350
349
349
347
346
345
344
344
344
343
342

Saturday 23

First Quarter 42%

No Rise

02:13

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
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 04:53, Set: 21:10, Transit: 13:02. Moon - Rise: No Rise, Set: 02:13. Civil Dark: 21:57 - 04:06. Nautical Dark: 23:07 - 02:55. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

88
84
74
63
75
88
100
100
100
99
96
93
90
90
94
96
82
67
52
59
67
76
64
60

Low Clouds (% Sky Obscured)

8
8
7
7
9
11
12
8
4
0
10
19
29
40
54
65
57
49
41
52
62
71
56
41

Medium Clouds (% Sky Obscured)

52
35
17
0
18
39
55
63
64
69
63
57
54
50
46
42
37
28
18
24
28
31
23
15

High Clouds (% Sky Obscured)

88
82
70
58
72
87
100
100
99
98
94
90
88
87
87
86
65
48
30
30
30
25
20
25

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
1
9
10
7
13
13
14
18
18
30
45
44
24
19
13
0
0
0
0
2
1

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

Chance of Frost

Temperature (°C)

22
23
24
24
25
24
23
23
22
20
19
18
17
17
16
16
16
16
16
16
17
18
19
20

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

57
55
55
56
56
59
64
69
74
79
84
86
86
89
89
90
90
87
85
83
76
68
61
57

Pressure (mb)

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

Ozone (du)

342
341
341
341
341
341
340
340
338
337
335
336
336
337
337
337
337
337
336
336
337
338
340
340

Sunday 24

Waxing Gibbous 53%

12:20

02:24

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

Sun - Rise: 04:51, Set: 21:12, Transit: 13:02. Moon - Rise: 12:20, Set: 02:24. Civil Dark: 21:59 - 04:04. Nautical Dark: 23:10 - 02:52. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

40
33
22
10
16
22
32
27
23
23
31
39
43
37
30
24
15
7
0
2
5
7
4
2

Low Clouds (% Sky Obscured)

27
19
12
2
6
8
10
10
9
4
9
17
26
28
30
24
15
7
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

7
6
5
4
4
3
2
1
1
1
8
14
27
20
11
2
1
1
0
0
0
0
0
0

High Clouds (% Sky Obscured)

20
16
18
10
16
22
32
27
19
7
3
2
1
1
1
1
1
1
0
2
5
7
4
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
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
1
0
3
12
21
19
15
13
15
10
0
1
2
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
8
8
8
7
7
5
4
3
3
3
3
3
3
3
3
3
3
3
4
4
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

18
19
23
22
22
22
22
23
18
17
17
16
16
15
12
13
12
13
12
12
16
17
17
18

Dew Point (°C)

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

Relative Humidity (%)

51
46
46
48
48
54
63
71
73
74
75
79
80
83
86
87
88
87
84
83
75
69
64
60

Pressure (mb)

1026
1026
1026
1026
1026
1027
1027
1027
1028
1028
1029
1029
1029
1029
1030
1030
1030
1030
1030
1031
1031
1031
1031
1031

Ozone (du)

340
340
340
340
340
339
338
337
337
336
336
334
333
331
331
330
330
330
330
330
330
331
332
332

Forecast for Sheffield, Sheffield, United Kingdom (53.38,-1.47)

Generated: 18/05/26 01:31:47. Forecast: 18/05/26 to 24/05/26. Timezone: UTC+1.00