Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 20

Waning Gibbous 48%

04:06

11:28

12 Bad
13 Bad
14 OK
15 Good
16 OK
17 OK
18 OK
19 OK
20 OK
21 OK
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: 05:54, Set: 20:23, Transit: 13:09. Moon - Rise: 04:06, Set: 11:28. Civil Dark: 21:02 - 05:14. Nautical Dark: 21:52 - 04:24. Astro Dark: 22:53 - 03:22

Total Clouds (% Sky Obscured)

74
63
26
9
39
22
27
40
47
42
46
82
78
49
55
77
100
73
94
98
100
100
100
100

Low Clouds (% Sky Obscured)

7
6
6
1
1
1
1
2
6
8
0
3
2
0
0
0
0
0
21
48
80
87
87
85

Medium Clouds (% Sky Obscured)

28
18
19
6
28
17
22
29
34
35
43
80
78
45
49
71
100
72
92
90
100
100
100
100

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
34
51
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
6
9
9
3
3
4
3

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

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
5
7
3
2
3
12
31
54
44
39
77
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0
0
0.4
1
1
1
0.7

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

9
11
12
13
13
13
14
13
11
9
9
9
7
6
7
7
6
6
6
7
7
7
7
7

Dew Point (°C)

3
3
4
4
5
5
7
8
8
8
8
8
8
8
7
8
7
7
7
7
8
8
8
9

Relative Humidity (%)

58
55
53
52
52
53
60
68
75
76
80
87
90
90
90
93
91
91
93
91
93
95
96
95

Pressure (mb)

1009
1008
1008
1007
1007
1006
1006
1006
1006
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1008
1008

Ozone (du)

372
371
370
371
371
369
368
367
367
369
370
373
374
376
377
378
378
376
374
372
370
371
372
374

Monday 21

Third Quarter 37%

04:23

No Set

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: 05:51, Set: 20:25, Transit: 13:09. Moon - Rise: 04:23, Set: No Set. Civil Dark: 21:04 - 05:12. Nautical Dark: 21:55 - 04:21. Astro Dark: 22:56 - 03:18

Total Clouds (% Sky Obscured)

100
100
100
99
91
73
61
59
68
56
65
65
82
76
76
74
73
60
63
100
100
55
100
49

Low Clouds (% Sky Obscured)

87
80
100
95
87
73
61
59
68
56
65
65
82
76
76
70
65
53
57
63
62
52
43
47

Medium Clouds (% Sky Obscured)

99
99
100
97
67
56
50
59
34
0
22
0
25
26
0
0
3
3
2
64
68
38
41
31

High Clouds (% Sky Obscured)

68
94
100
76
2
0
0
0
0
0
0
0
0
3
39
55
55
47
63
100
100
24
66
25

ISS Passover

Visibility (miles)

6
8
9
9
6
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
3
16
30
41
64
2
2
1
1

Precipitation Type

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

Precipitation Probability (%)

78
62
48
65
63
46
22
8
11
13
6
11
19
29
25
3
1
2
3
0
0
0
3
14

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

9
9
10
10
9
8
8
9
9
9
8
8
7
8
8
8
8
7
7
7
8
7
7
7

Relative Humidity (%)

93
93
93
87
83
83
84
87
93
93
93
93
90
91
91
93
95
95
93
93
90
84
78
73

Pressure (mb)

1008
1009
1009
1009
1009
1009
1010
1010
1011
1012
1012
1012
1013
1013
1013
1014
1014
1014
1015
1015
1015
1016
1016
1016

Ozone (du)

376
374
373
371
370
372
375
379
379
382
383
381
377
376
375
374
373
373
372
373
373
376
378
378

Tuesday 22

Waning Crescent 26%

04:35

12:57

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: 05:49, Set: 20:27, Transit: 13:09. Moon - Rise: 04:35, Set: 12:57. Civil Dark: 21:06 - 05:10. Nautical Dark: 21:57 - 04:18. Astro Dark: 23:00 - 03:14

Total Clouds (% Sky Obscured)

50
90
100
81
93
91
100
100
100
100
100
100
100
100
100
79
100
100
98
76
59
43
55
63

Low Clouds (% Sky Obscured)

47
24
7
0
6
0
0
0
56
12
0
0
0
0
9
21
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

3
38
60
60
1
30
30
33
100
100
100
100
100
99
74
78
83
92
47
53
56
17
18
33

High Clouds (% Sky Obscured)

50
90
100
81
43
43
100
100
100
100
100
100
100
100
100
66
100
98
86
70
44
1
1
2

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
6
4
3
3
5
9
9
9
9
9
9
9

Fog (%)

1
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
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None

Precipitation Probability (%)

6
5
9
4
5
4
22
14
4
11
31
54
81
95
95
84
57
37
31
22
17
2
11
4

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.7
0.7
0.5
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

66
63
61
65
72
63
63
70
75
79
79
80
84
91
91
91
91
90
90
90
90
89
89
87

Pressure (mb)

1016
1016
1016
1015
1015
1015
1014
1014
1013
1013
1013
1013
1013
1012
1012
1012
1012
1012
1012
1013
1014
1015
1015
1016

Ozone (du)

380
380
383
383
383
382
379
379
376
379
380
381
382
384
385
386
386
386
386
387
386
384
381
378

Wednesday 23

Waning Crescent 17%

04:45

14:26

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

Sun - Rise: 05:47, Set: 20:29, Transit: 13:09. Moon - Rise: 04:45, Set: 14:26. Civil Dark: 21:08 - 05:07. Nautical Dark: 22:00 - 04:15. Astro Dark: 23:04 - 03:10

Total Clouds (% Sky Obscured)

68
52
88
100
68
73
67
49
13
0
0
1
1
0
1
1
3
5
10
61
77
70
75
86

Low Clouds (% Sky Obscured)

0
12
23
35
32
33
30
24
8
0
0
0
0
0
0
0
3
5
10
31
43
43
58
69

Medium Clouds (% Sky Obscured)

25
40
52
70
61
51
42
28
13
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
20
36
31
27
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 (%)

11
11
14
7
12
12
12
8
1
0
0
0
0
0
0
0
0
0
0
0
0
0
2
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)

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

Chance of Frost

Temperature (°C)

14
15
15
15
14
14
14
13
12
11
9
9
8
7
7
7
6
6
6
6
8
10
11
12

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
79
67
69
70
63
69
75
81
88
90
91
91
91
91
90
88
88
88
85
79
76
76
72

Pressure (mb)

1016
1017
1017
1017
1018
1018
1019
1019
1020
1021
1022
1023
1023
1023
1023
1024
1024
1024
1024
1025
1025
1025
1025
1025

Ozone (du)

375
371
370
371
375
378
377
376
373
372
370
368
368
367
365
362
361
362
363
364
364
362
361
360

Thursday 24

Waning Crescent 9%

04:54

15:57

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: 05:45, Set: 20:30, Transit: 13:09. Moon - Rise: 04:54, Set: 15:57. Civil Dark: 21:10 - 05:05. Nautical Dark: 22:02 - 04:12. Astro Dark: 23:08 - 03:05

Total Clouds (% Sky Obscured)

97
81
70
52
73
95
99
95
91
82
84
91
97
93
90
86
86
90
91
93
93
93
92
91

Low Clouds (% Sky Obscured)

77
75
70
52
63
54
39
34
34
10
36
51
58
62
67
73
67
64
62
59
57
56
49
46

Medium Clouds (% Sky Obscured)

0
0
0
0
5
12
18
14
7
0
2
2
31
35
39
40
41
42
43
54
71
80
85
90

High Clouds (% Sky Obscured)

47
50
60
52
58
61
60
59
68
54
57
70
80
53
27
1
0
3
4
4
5
5
5
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
8
8

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
1
4
1
3
2
1
0
0
0
0
0
0
0
0
0
0
0
0
11
18
25
41
52

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

71
70
65
62
61
64
70
72
75
77
84
81
81
82
82
84
85
87
87
88
87
85
85
87

Pressure (mb)

1025
1025
1025
1025
1024
1024
1024
1024
1024
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1024
1024
1024
1024
1024

Ozone (du)

361
362
364
364
360
359
354
352
349
349
350
350
349
349
349
348
348
347
347
346
346
347
347
349

Friday 25

Waning Crescent 3%

05:04

17:29

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: 05:43, Set: 20:32, Transit: 13:09. Moon - Rise: 05:04, Set: 17:29. Civil Dark: 21:12 - 05:02. Nautical Dark: 22:05 - 04:09. Astro Dark: 23:12 - 03:01

Total Clouds (% Sky Obscured)

86
90
94
98
97
95
89
92
96
97
94
83
69
72
75
81
79
80
85
84
84
85
85
85

Low Clouds (% Sky Obscured)

40
53
69
87
66
47
27
42
59
79
73
64
58
70
75
81
79
79
77
74
71
70
69
67

Medium Clouds (% Sky Obscured)

85
84
84
83
89
84
80
80
79
79
74
70
60
51
43
36
19
13
10
13
17
24
14
7

High Clouds (% Sky Obscured)

15
16
17
23
33
33
28
27
26
25
35
35
35
30
30
20
20
24
28
29
36
33
38
40

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

62
64
62
56
53
48
40
47
53
58
64
70
76
69
59
42
36
27
10
19
22
22
26
27

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
90
92
92
90
92
92
92
93
93
95
96
96
96
96
95
95
95
95
95
95
95
96
96

Pressure (mb)

1024
1024
1024
1023
1023
1023
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022

Ozone (du)

352
355
354
353
352
351
351
351
351
352
352
355
358
361
361
362
362
362
362
362
363
364
365
366

Saturday 26

Waning Crescent 3%

05:15

19:05

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

Sun - Rise: 05:40, Set: 20:34, Transit: 13:08. Moon - Rise: 05:15, Set: 19:05. Civil Dark: 21:15 - 05:00. Nautical Dark: 22:08 - 04:06. Astro Dark: 23:16 - 02:56

Total Clouds (% Sky Obscured)

85
81
80
79
73
70
69
77
76
80
79
81
84
84
87
86
77
68
62

Low Clouds (% Sky Obscured)

64
57
53
50
38
30
27
36
37
33
35
41
38
42
46
53
54
54
50

Medium Clouds (% Sky Obscured)

0
1
1
1
1
1
0
5
10
15
14
15
16
24
28
34
30
28
26

High Clouds (% Sky Obscured)

29
15
14
11
10
10
6
5
3
1
8
16
22
19
15
11
7
4
2

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

26
31
34
33
28
27
25
20
16
5
14
12
4
8
6
2
5
2
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
95
93
92
92
92
92
92
95
96
98
96
96
93
95
93
95
93
95

Pressure (mb)

1022
1022
1022
1022
1022
1022
1022
1022
1022
1023
1023
1023
1023
1023
1023
1023
1023
1024
1024

Ozone (du)

367
369
369
370
371
370
370
370
369
369
368
369
370
371
371
371
371
373
374

Forecast for Lancaster, Lancashire, United Kingdom (54.05,-2.80)

Generated: 20/04/25 11:19:08. Forecast: 20/04/25 to 26/04/25. Timezone: UTC+1.00