Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 15

Waning Crescent 6%

04:03

18:03

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
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad

Sun - Rise: 02:12, Set: 23:20, Transit: 12:55. Moon - Rise: 04:03, Set: 18:03. Civil Dark: N/A - N/A. Nautical Dark: N/A - N/A. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

99
97
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
99
98
97

Low Clouds (% Sky Obscured)

85
75
91
79
81
73
48
57
72
79
81
84
84
85
87
89
88
88
87
88
91
90
90
91

Medium Clouds (% Sky Obscured)

57
55
50
77
69
69
96
100
100
100
100
100
100
100
100
100
100
100
99
87
96
95
91
80

High Clouds (% Sky Obscured)

4
15
77
89
100
100
100
100
100
100
100
100
100
100
100
95
93
80
67
60
60
60
28
3

ISS Passover

Visibility (miles)

0
0
0
0
0
0
0
0
0
0
0
1
2
3
0
0
0
0
0
0
0
0
0
0

Fog (%)

0
0
0
0
0
0
0
0
1
2
2
2
2
1
1
1
1
2
1
1
1
1
2
100

Precipitation Type

Snow
Snow
Snow
Snow
Snow
None
None
None
None
None
None
None
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow

Precipitation Probability (%)

68
65
53
47
46
27
12
19
29
32
41
48
53
52
54
58
56
54
51
51
51
48
48
45

Precipitation Amount (mm)

0.5
0.5
0.3
0.3
0.2
0
0
0
0
0
0
0
0.1
0.1
0.2
0.2
0.3
0.2
0.2
0.2
0.2
0.2
0.2
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

0
0
1
1
1
1
1
1
1
1
1
0
1
0
0
-0
-0
-1
-1
-1
-1
-2
-2
-2

Feels Like (°C)

-4
-3
-3
-3
-3
-3
-3
-2
-2
-2
-3
-3
-3
-3
-3
-3
-3
-4
-4
-3
-4
-4
-4
-4

Dew Point (°C)

-0
0
1
1
1
1
1
1
1
1
1
0
0
-0
-0
-1
-1
-1
-1
-1
-1
-2
-2
-2

Relative Humidity (%)

96
98
100
100
100
100
100
100
100
100
98
98
96
96
98
98
98
98
98
100
100
100
100
98

Pressure (mb)

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

Ozone (du)

459
461
461
460
460
460
460
461
462
463
467
469
470
472
475
481
484
490
494
494
488
487
482
477

Thursday 16

Waning Crescent 2%

01:56

22:00

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
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad

Sun - Rise: 01:46, Set: 23:38, Transit: 12:55. Moon - Rise: 01:56, Set: 22:00. Civil Dark: N/A - N/A. Nautical Dark: N/A - N/A. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

96
97
98
97
93
94
94
100
97
90
74
85
86
86
76
98
97
98
99
96
99
99
94
98

Low Clouds (% Sky Obscured)

92
94
97
96
88
86
92
100
96
86
72
85
86
86
76
78
64
70
75
71
59
61
68
69

Medium Clouds (% Sky Obscured)

36
4
0
0
0
0
0
0
0
0
0
0
0
0
0
11
19
25
58
65
75
69
66
69

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
3
0
2
5
55
62
54
41
34
40
45
35
42

ISS Passover

Visibility (miles)

0
0
0
0
0
0
0
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

100
100
96
2
1
0
0
0
2
1
0
0
0
0
0
0
1
0
0
0
2
5
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 (%)

32
31
25
18
8
5
14
8
16
13
13
1
1
2
1
3
6
6
2
0
0
1
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
5
5
5
5
6
6
6
6
6
6
6
6
6
6
7
7
7
7
6
6
6
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-4
-5
-4
-4
-4
-4
-4
-5
-4
-4
-4
-4
-4
-3
-3
-4
-6
-6
-6
-6
-6
-6
-7
-7

Dew Point (°C)

-2
-2
-1
-1
-1
-1
-1
-2
-2
-2
-1
-2
-2
-2
-2
-3
-3
-4
-3
-3
-4
-4
-4
-4

Relative Humidity (%)

100
98
98
100
98
98
96
94
92
94
94
91
89
86
87
87
89
87
89
89
87
89
89
89

Pressure (mb)

1018
1018
1019
1019
1020
1020
1021
1022
1022
1023
1023
1024
1024
1024
1025
1025
1026
1026
1026
1027
1027
1027
1027
1027

Ozone (du)

464
455
453
452
453
451
443
439
439
442
439
429
420
412
405
400
397
395
391
390
388
386
385
385

Friday 17

New Moon 0%

No Rise

No Set

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
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad

Sun - Rise: N/A, Set: 00:03, Transit: 12:55. Moon - Rise: No Rise, Set: No Set. Civil Dark: N/A - N/A. Nautical Dark: N/A - N/A. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

98
99
97
94
93
94
94
89
98
100
100
97
98
99
99
100
100
100
100
82
90
99
100
100

Low Clouds (% Sky Obscured)

54
55
52
59
52
57
65
64
62
64
67
71
67
76
80
84
85
88
87
82
79
74
61
45

Medium Clouds (% Sky Obscured)

71
74
79
66
65
79
69
88
92
88
0
0
0
0
0
0
0
61
70
82
83
89
94
100

High Clouds (% Sky Obscured)

43
51
39
30
26
13
28
57
90
94
100
80
84
89
91
95
96
93
97
42
60
90
97
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
6
4
3
1
1
1
1
1
3
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 (%)

1
0
0
0
0
0
2
0
0
0
0
0
0
0
0
0
0
1
2
0
0
1
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)

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

Chance of Frost

Temperature (°C)

-3
-3
-3
-3
-3
-3
-3
-3
-3
-3
-2
-2
-2
-2
-2
-2
-1
-1
-1
-2
-2
-2
-2
-2

Feels Like (°C)

-6
-6
-6
-6
-6
-6
-6
-5
-5
-5
-5
-4
-4
-5
-5
-5
-5
-5
-5
-6
-5
-5
-6
-6

Dew Point (°C)

-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-4
-3
-2
-2
-3
-3
-2
-2
-2
-2
-2
-2
-3
-3

Relative Humidity (%)

89
89
92
94
94
94
96
94
92
92
91
92
94
94
94
94
94
92
94
94
94
94
91
89

Pressure (mb)

1027
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1027
1027
1027
1027
1026
1026
1026
1025
1025
1025
1024

Ozone (du)

386
386
386
381
379
378
375
371
369
369
369
370
369
367
367
367
365
363
361
359
357
356
355
353

Saturday 18

Waxing Crescent 2%

No Rise

No Set

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
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad

Sun - Rise: N/A, Set: N/A, Transit: 12:55. Moon - Rise: No Rise, Set: No Set. Civil Dark: N/A - N/A. Nautical Dark: N/A - N/A. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
100
100
99
99
96
93
90
93
91
95
95
95
95
97
98
100
100
100
99
99
98
98

Low Clouds (% Sky Obscured)

52
60
67
67
62
57
63
66
67
76
81
88
88
87
87
91
96
100
100
99
99
98
97
96

Medium Clouds (% Sky Obscured)

75
49
28
49
70
91
77
62
47
54
61
68
68
68
65
56
47
39
46
50
53
36
20
3

High Clouds (% Sky Obscured)

90
78
63
59
50
45
45
43
35
35
0
0
0
0
0
0
0
0
0
2
5
1
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
8
3
3
1
0
0
0
0
0
0
0
0
0
0
0
0

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
Snow
Snow
Snow
Snow
None
Snow
Snow
Snow
Snow
Snow
None

Precipitation Probability (%)

1
1
0
1
2
1
7
7
13
20
17
25
31
46
50
54
55
43
53
55
58
61
51
45

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0.1
0.1
0.2
0.2
0
0.2
0.2
0.1
0.2
0.1
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-6
-6
-6
-7
-6
-5
-5
-5
-5
-5
-4
-3
-3
-4
-3
-3
-3
-4
-3
-3
-3
-3
-3
-3

Dew Point (°C)

-4
-4
-4
-4
-3
-3
-2
-2
-2
-2
-1
-0
0
0
1
1
1
1
1
1
1
2
1
1

Relative Humidity (%)

86
86
87
89
91
91
92
92
92
92
94
96
96
96
98
98
98
96
96
96
96
100
98
98

Pressure (mb)

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

Ozone (du)

353
354
353
354
361
367
377
377
377
383
392
395
391
392
396
399
401
404
404
405
407
409
412
413

Sunday 19

Waxing Crescent 6%

No Rise

No Set

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

Sun - Rise: N/A, Set: N/A, Transit: 12:54. Moon - Rise: No Rise, Set: No Set. Civil Dark: N/A - N/A. Nautical Dark: N/A - N/A. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

99
75
54
57
56
50
50
51
70
70
77
64
39
37
32
32
38
39
49
60
68
75
82
88

Low Clouds (% Sky Obscured)

97
75
54
57
56
50
50
51
70
70
72
58
39
37
32
32
25
12
30
48
66
75
82
88

Medium Clouds (% Sky Obscured)

2
1
0
0
0
0
3
6
8
27
46
45
39
35
22
4
5
6
4
2
0
2
3
5

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
27
53
64
39
37
32
12
10
7
27
44
62
66
71
76

ISS Passover

Visibility (miles)

0
6
9
9
9
9
9
9
8
6
7
9
9
9
9
9
8
7
6
6
6
6
7
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

Snow
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

48
43
33
32
30
25
24
20
12
12
10
1
2
2
1
1
2
0
0
1
1
8
13
18

Precipitation Amount (mm)

0.1
0.1
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
8
8
8
8
8
8
8
7
7
6
5
5
5
6
6
7
7
6
6
6
5

Chance of Frost

Temperature (°C)

1
1
1
1
1
-0
-0
0
-1
-1
-1
-1
-1
-2
-3
-3
-2
-3
-3
-4
-3
-3
-4
-3

Feels Like (°C)

-3
-4
-3
-3
-2
-4
-3
-3
-3
-4
-4
-4
-4
-4
-5
-6
-5
-5
-5
-6
-6
-6
-8
-9

Dew Point (°C)

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

Relative Humidity (%)

98
96
96
92
91
91
89
89
89
89
87
89
91
89
89
91
91
91
91
91
92
92
91
89

Pressure (mb)

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

Ozone (du)

409
409
408
406
405
403
403
403
402
401
399
399
398
399
399
398
399
400
401
402
403
403
403
403

Monday 20

Waxing Crescent 14%

No Rise

No Set

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
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad

Sun - Rise: N/A, Set: N/A, Transit: 12:54. Moon - Rise: No Rise, Set: No Set. Civil Dark: N/A - N/A. Nautical Dark: N/A - N/A. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

90
94
98
82
66
50
42
36
27
40
54
69
80
90
100
100
100
99
95
90
86
78
70
64

Low Clouds (% Sky Obscured)

90
92
93
79
63
47
41
36
27
40
54
69
80
90
98
97
97
96
93
90
86
78
70
64

Medium Clouds (% Sky Obscured)

5
5
10
9
9
5
5
4
4
9
13
17
28
39
50
34
18
2
1
1
0
0
0
0

High Clouds (% Sky Obscured)

70
62
51
39
23
12
10
8
4
3
2
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
6
3
0
0
0
0
0
0
0
1
1
1
4
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
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
None
None
None
None
None
None
None
None

Precipitation Probability (%)

25
33
43
50
56
58
54
50
47
47
47
48
46
44
42
37
33
30
27
22
14
13
11
3

Precipitation Amount (mm)

0
0
0.1
0.2
0.3
0.3
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.1
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-9
-9
-9
-9
-6
-6
-5
-5
-5
-4
-4
-3
-3
-3
-3
-4
-6
-6
-5
-5
-6
-6
-11
-10

Dew Point (°C)

-5
-5
-5
-5
-5
-5
-4
-4
-4
-3
-3
-2
-2
-2
-2
-2
-3
-4
-4
-5
-6
-7
-8
-8

Relative Humidity (%)

87
86
84
82
82
81
81
83
84
84
87
91
92
94
96
98
96
96
94
96
94
94
92
92

Pressure (mb)

1020
1019
1019
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1017
1017
1017
1018
1018
1018
1018
1018
1018
1018

Ozone (du)

403
403
403
402
402
403
403
403
404
404
405
405
405
405
406
406
405
405
404
408
411
415
414
413

Tuesday 21

Waxing Crescent 23%

No Rise

No Set

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

Sun - Rise: N/A, Set: N/A, Transit: 12:54. Moon - Rise: No Rise, Set: No Set. Civil Dark: N/A - N/A. Nautical Dark: N/A - N/A. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

57
50
46
44
42
38
39
39
36
38
29
20
47
74
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

57
50
46
44
42
38
39
39
36
38
29
20
47
50
51
55
63
74
78
82
85

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
25
52
78
84
92
96

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
33
67
100
100
100
100
67
33
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
8

Fog (%)

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

Precipitation Probability (%)

6
5
2
4
2
0
1
1
1
3
4
2
6
6
5
8
10
11
22
26
25

Precipitation Amount (mm)

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

Chance of Frost

Temperature (°C)

-7
-7
-6
-6
-5
-5
-4
-4
-4
-3
-3
-3
-3
-3
-3
-4
-3
-3
-2
-2
-3

Feels Like (°C)

-10
-10
-10
-10
-8
-7
-7
-6
-6
-6
-5
-5
-5
-5
-5
-5
-7
-7
-7
-7
-8

Dew Point (°C)

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

Relative Humidity (%)

90
89
87
87
85
85
85
85
84
84
86
87
86
87
89
91
91
92
92
92
92

Pressure (mb)

1018
1018
1018
1018
1017
1017
1017
1017
1016
1016
1015
1014
1013
1013
1012
1011
1010
1009
1008
1007
1007

Ozone (du)

413
414
415
417
419
421
424
425
426
428
430
431
433
434
434
434
435
437
438
437
437

Forecast for Longyearbyen, Spitsbergen, Svalbard and Jan Mayen (78.15,16.04)

Generated: 15/04/26 05:27:31. Forecast: 15/04/26 to 21/04/26. Timezone: UTC+2.00