Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 21

Waxing Crescent 35%

08:22

03:39

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

Sun - Rise: 05:56, Set: 20:55, Transit: 13:25. Moon - Rise: 08:22, Set: 03:39. Civil Dark: 21:37 - 05:11. Nautical Dark: 22:37 - 04:10. Astro Dark: 00:04 - 02:40

Total Clouds (% Sky Obscured)

77
71
62
25
22
23
26
27
26
22
20
24
28
29
33
35
29
21
14
15
4
0
13
0

Low Clouds (% Sky Obscured)

27
23
16
21
18
17
17
17
13
9
13
18
23
24
24
28
26
16
12
10
2
0
8
0

Medium Clouds (% Sky Obscured)

2
15
0
0
0
0
0
0
6
9
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
0
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
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
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
84
82
85
85
88
90
91
93
93
91
82
73
67
64
63
60
58
56
54
54
56
61
73

Pressure (mb)

1035
1035
1035
1035
1035
1034
1034
1034
1034
1034
1034
1034
1034
1034
1034
1033
1033
1033
1033
1032
1032
1032
1032
1032

Ozone (du)

375
375
374
371
371
372
373
373
376
380
383
382
382
383
384
386
389
391
393
392
394
393
395
388

Wednesday 22

Waxing Crescent 46%

09:58

04:10

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

Sun - Rise: 05:53, Set: 20:57, Transit: 13:25. Moon - Rise: 09:58, Set: 04:10. Civil Dark: 21:40 - 05:08. Nautical Dark: 22:41 - 04:06. Astro Dark: 00:11 - 02:31

Total Clouds (% Sky Obscured)

22
24
100
100
100
100
100
97
65
63
77
100
28
66
50
54
61
64
67
50
69
73
56
41

Low Clouds (% Sky Obscured)

11
8
7
2
4
0
0
0
0
0
4
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
5
75
77
96
2
29
11
8
12
15
3
5
3
2
2
5
29
2
1
2
2
2

High Clouds (% Sky Obscured)

3
10
100
100
42
100
100
89
62
63
72
100
18
50
47
50
50
54
36
34
49
66
45
32

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
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)

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

Chance of Frost

Temperature (°C)

8
6
6
5
5
5
5
5
5
5
4
6
9
10
12
13
14
15
15
15
14
14
13
11

Feels Like (°C)

7
6
6
3
3
4
4
4
3
5
4
5
7
10
11
11
11
12
12
13
13
12
11
9

Dew Point (°C)

5
4
3
3
3
2
2
2
2
2
1
2
3
2
1
0
0
1
1
0
1
2
3
4

Relative Humidity (%)

84
85
85
83
83
82
83
82
82
83
80
74
65
56
47
41
38
38
39
37
39
43
51
63

Pressure (mb)

1032
1032
1032
1032
1032
1032
1032
1032
1032
1032
1032
1032
1032
1032
1032
1032
1032
1032
1031
1031
1031
1031
1030
1030

Ozone (du)

385
381
379
376
373
372
373
374
373
371
370
368
367
366
367
367
365
364
362
359
356
356
355
355

Thursday 23

Waxing Crescent 58%

11:39

04:25

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

Sun - Rise: 05:50, Set: 20:59, Transit: 13:25. Moon - Rise: 11:39, Set: 04:25. Civil Dark: 21:42 - 05:05. Nautical Dark: 22:44 - 04:02. Astro Dark: 00:18 - 02:22

Total Clouds (% Sky Obscured)

66
60
63
60
63
53
39
23
15
31
36
34
30
19
43
36
31
18
32
49
65
71
51
44

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
8
23
27
18
9

Medium Clouds (% Sky Obscured)

2
4
26
14
17
6
7
17
8
19
29
25
21
7
25
24
23
10
9
23
42
40
27
14

High Clouds (% Sky Obscured)

59
60
51
60
63
53
29
2
2
13
7
9
8
15
23
11
2
5
31
30
20
24
14
23

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
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)

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

Chance of Frost

Temperature (°C)

9
7
7
7
7
7
7
7
7
6
6
7
11
14
15
15
15
16
16
16
16
14
13
12

Feels Like (°C)

8
6
5
5
5
5
5
5
6
5
5
6
10
13
14
14
15
15
16
16
15
13
12
11

Dew Point (°C)

3
2
2
2
2
2
1
1
0
-1
-2
-2
1
2
2
2
1
1
2
3
3
3
3
5

Relative Humidity (%)

69
71
70
70
69
69
67
65
64
61
60
55
49
45
42
39
38
38
37
39
43
46
51
62

Pressure (mb)

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

Ozone (du)

356
356
356
356
356
355
353
353
352
352
353
353
354
354
354
355
356
355
355
356
356
355
356
357

Friday 24

First Quarter 54%

13:15

04:34

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

Sun - Rise: 05:48, Set: N/A, Transit: 13:25. Moon - Rise: 13:15, Set: 04:34. Civil Dark: 21:45 - 05:02. Nautical Dark: 22:47 - 03:58. Astro Dark: 00:27 - 02:12

Total Clouds (% Sky Obscured)

20
15
8
3
3
4
2
26
50
73
65
67
60
49
41
33
55
78
97
77
60
44
52
61

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
26
50
73
65
59
50
42
34
26
17
9
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

1
0
0
1
0
0
1
2
2
2
2
2
0
0
0
0
24
51
71
53
36
20
52
61

High Clouds (% Sky Obscured)

20
15
8
3
3
4
2
4
7
4
19
38
40
16
10
8
41
66
89
69
49
28
16
3

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
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

4
3
3
3
2
1
1
-0
0
1
1
2
2
3
3
4
4
4
4
4
5
5
6
6

Relative Humidity (%)

66
67
68
69
70
69
70
70
71
75
75
71
65
62
59
59
57
54
53
53
55
57
62
70

Pressure (mb)

1026
1026
1026
1026
1026
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1024
1024
1024
1024
1023
1023
1023
1023
1023

Ozone (du)

357
358
358
360
362
363
363
362
361
361
362
362
360
359
359
359
360
359
358
357
359
361
369
379

Saturday 25

Waxing Gibbous 69%

14:45

04:39

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
20 Bad

Sun - Rise: 05:45, Set: 21:01, Transit: 13:24. Moon - Rise: 14:45, Set: 04:39. Civil Dark: 21:47 - 04:59. Nautical Dark: 22:51 - 03:54. Astro Dark: 00:38 - 01:58

Total Clouds (% Sky Obscured)

70
66
48
45
59
74
88
91
97
100
100
96
99
99
98
97
91
85
78
77
75
74
82
91

Low Clouds (% Sky Obscured)

0
0
0
0
24
47
70
74
79
82
88
92
97
97
94
91
84
77
71
72
73
74
77
80

Medium Clouds (% Sky Obscured)

70
66
43
36
34
35
33
39
48
52
37
31
34
26
35
92
74
55
42
26
13
5
20
34

High Clouds (% Sky Obscured)

0
1
0
0
25
43
59
65
66
73
80
39
24
18
20
20
10
5
15
19
22
32
57
67

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
1
1
8
11
14
29
28
23
21
19
13
48
41
11
18
15
6
10
10

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
78
78
79
79
79
74
70
69
68
69
67
61
61
64
71
70
70
71
74
75
79
81
84

Pressure (mb)

1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1024
1024
1024
1024
1024
1025
1025
1025
1025
1026
1026
1027

Ozone (du)

373
376
378
379
376
375
374
373
372
371
370
371
371
372
373
372
373
373
374
374
374
373
372
371

Sunday 26

Waxing Gibbous 78%

16:12

04:43

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
20 Bad

Sun - Rise: 05:43, Set: 21:04, Transit: 13:24. Moon - Rise: 16:12, Set: 04:43. Civil Dark: 21:50 - 04:56. Nautical Dark: 22:54 - 03:51. Astro Dark: 00:51 - 01:32

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
99
97
97
98
98
98
100
100
100
100
100
95
91
100
100
100
100

Low Clouds (% Sky Obscured)

84
84
85
85
90
95
100
97
94
91
84
76
65
62
57
52
68
83
95
91
96
95
91
87

Medium Clouds (% Sky Obscured)

47
50
54
53
46
38
29
37
46
54
65
75
85
72
58
45
44
44
43
41
41
44
57
67

High Clouds (% Sky Obscured)

74
64
58
64
76
64
54
70
83
95
95
95
95
95
95
95
86
77
69
72
76
90
90
95

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 (%)

9
17
12
2
5
5
1
4
3
2
4
5
4
4
3
1
3
3
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

8
8
8
8
8
8
8
8
8
8
8
9
9
9
9
9
9
14
13
12
12
12
13
13

Dew Point (°C)

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

Relative Humidity (%)

87
87
90
90
90
90
91
91
90
88
88
83
79
72
69
65
63
61
60
58
59
59
60
67

Pressure (mb)

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

Ozone (du)

370
370
370
370
371
372
374
376
375
374
373
374
374
374
373
372
371
370
370
370
369
368
367
367

Monday 27

Waxing Gibbous 86%

17:35

04:45

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

Sun - Rise: 05:40, Set: 21:06, Transit: 13:24. Moon - Rise: 17:35, Set: 04:45. Civil Dark: 21:53 - 04:53. Nautical Dark: 22:58 - 03:47. Astro Dark: 01:17 - N/A

Total Clouds (% Sky Obscured)

100
100
100
100
99
98
97
96
95
89
81
64
60
31
26
26
26
25
30
35
45
55

Low Clouds (% Sky Obscured)

83
82
81
80
80
80
89
92
90
88
81
64
60
31
26
26
26
25
30
35
45
55

Medium Clouds (% Sky Obscured)

76
79
81
84
71
58
39
40
40
38
44
50
56
31
26
26
26
24
19
12
6
0

High Clouds (% Sky Obscured)

95
100
100
100
68
36
4
4
4
4
6
5
6
20
26
26
26
18
6
28
45
55

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

Fog (%)

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

Precipitation Probability (%)

1
2
2
0
3
2
0
1
2
0
2
2
1
4
5
4
4
4
1
3
4
5

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

75
84
87
87
88
87
84
83
81
80
78
72
67
62
60
60
58
58
57
56
56
58

Pressure (mb)

1031
1032
1031
1031
1031
1031
1031
1031
1031
1031
1031
1031
1030
1030
1030
1030
1030
1030
1030
1029
1029
1029

Ozone (du)

367
368
368
369
369
369
369
368
368
367
367
367
368
369
369
370
371
370
370
369
369
369

Forecast for Tarbert, Western Isles, United Kingdom (57.90,-6.81)

Generated: 21/04/26 21:13:57. Forecast: 21/04/26 to 27/04/26. Timezone: UTC+1.00