Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 20

Waxing Crescent 13%

No Rise

No Set

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

Sun - Rise: 05:12, Set: 21:59, Transit: 13:35. Moon - Rise: No Rise, Set: No Set. Civil Dark: 23:25 - 03:39. Nautical Dark: N/A - N/A. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

1
1
0
1
0
0
2
5
0
2
6
3
1
3
6
10
54
100
96
75
58
100
100
93

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
4
2
0
1
6
10
21
23
18
46
50
54
44
27

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
1
6
3
1
0
6
10
54
0
39
2
0
0
0
0

High Clouds (% Sky Obscured)

1
0
0
0
0
0
2
4
0
0
0
0
0
0
6
10
54
100
95
63
4
80
80
60

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
5
0
0
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
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
1
3
4
1
1
0
1
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
5
5
4
4
4
3
3
3
3
3
3
4
5
8
9
10
11
12
12
12
13
14
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-7
-7
-6
-6
-7
-6
-6
-5
-4
-4
-4
-3
-3
-1
0
0
0
0
0
2
2
2
1
-2

Relative Humidity (%)

72
73
74
71
69
68
68
70
67
68
66
66
69
75
76
76
77
79
83
93
94
96
91
78

Pressure (mb)

1030
1030
1030
1030
1030
1030
1030
1030
1030
1029
1029
1028
1028
1027
1027
1027
1026
1026
1026
1026
1026
1026
1026
1025

Ozone (du)

369
370
371
374
378
379
379
378
380
386
390
393
395
394
385
382
387
390
389
392
394
395
395
397

Tuesday 21

Waxing Crescent 23%

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: 05:07, Set: 22:03, Transit: 13:35. Moon - Rise: No Rise, Set: No Set. Civil Dark: 23:32 - 03:31. Nautical Dark: N/A - N/A. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

77
67
80
100
94
64
84
61
80
100
100
100
100
98
92
90
85
100
99
98
99
96
99
99

Low Clouds (% Sky Obscured)

5
8
9
19
22
26
27
27
23
28
24
27
37
50
92
90
85
99
92
91
93
85
84
82

Medium Clouds (% Sky Obscured)

36
0
0
0
24
25
25
17
0
0
0
18
99
56
70
0
0
0
0
0
0
20
56
48

High Clouds (% Sky Obscured)

59
54
80
100
76
43
59
43
79
100
100
100
100
95
20
0
0
69
69
8
0
1
0
10

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
1
0
5
1
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
1

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
1
1
3
3
5
1
1
2
3
15
18
21
26
35
44
42
41
39
31

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
12
11
14
16
18
20
20
22
25
28
31
26
20
23
25
27
29
30
28
26
26
28

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
81
77
68
66
67
65
64
61
59
57
62
64
65
67
69
74
82
89
91
94
88
91
91

Pressure (mb)

1025
1024
1024
1024
1023
1023
1022
1020
1019
1018
1017
1016
1015
1014
1013
1012
1011
1010
1010
1009
1009
1009
1008
1008

Ozone (du)

398
398
397
397
397
396
397
396
397
396
399
401
403
403
406
404
404
401
401
396
397
393
392
392

Wednesday 22

Waxing Crescent 34%

No Rise

No Set

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

Sun - Rise: 04:57, Set: 22:07, Transit: 13:35. Moon - Rise: No Rise, Set: No Set. Civil Dark: 23:39 - 03:23. Nautical Dark: N/A - N/A. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

83
13
17
65
87
92
83
55
76
25
34
44
31
29
32
43
29
25
30
27
46
55
53
56

Low Clouds (% Sky Obscured)

68
12
17
56
74
80
70
52
66
25
34
44
31
29
32
28
25
23
19
12
2
2
6
9

Medium Clouds (% Sky Obscured)

20
0
0
1
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
4
2

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
3
2
2
4
27
8
7
19
21
46
55
53
56

ISS Passover

Visibility (miles)

2
9
8
5
1
1
2
7
9
9
9
9
9
9
9
9
9
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
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

24
24
27
39
43
45
32
25
24
18
12
10
8
6
4
4
2
3
4
4
4
5
4
2

Precipitation Amount (mm)

0
0
0
0
0
0.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

26
25
25
25
26
26
28
29
28
27
26
25
24
23
23
22
21
19
16
14
13
12
12
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
81
81
81
78
80
77
62
61
63
61
60
60
61
63
65
69
75
76
78
79
81
81
82

Pressure (mb)

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

Ozone (du)

391
389
390
390
392
395
394
394
394
394
393
391
389
387
384
382
381
380
377
374
371
369
368
366

Thursday 23

Waxing Crescent 46%

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: 04:53, Set: 22:12, Transit: 13:35. Moon - Rise: No Rise, Set: No Set. Civil Dark: 23:47 - 03:14. Nautical Dark: N/A - N/A. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

55
60
65
70
64
54
63
81
95
100
73
100
80
100
99
99
98
97
96
86
76
69
71
75

Low Clouds (% Sky Obscured)

11
14
32
39
39
26
28
31
33
34
36
34
28
29
34
40
38
39
40
34
27
20
13
8

Medium Clouds (% Sky Obscured)

10
19
41
26
21
3
7
18
28
41
43
48
50
48
37
44
96
96
86
86
76
69
71
71

High Clouds (% Sky Obscured)

55
60
65
70
31
21
22
64
95
100
10
100
42
98
97
95
95
95
95
86
76
69
71
75

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

Precipitation Probability (%)

1
1
2
0
1
1
1
6
9
11
28
37
43
65
78
88
88
82
70
65
53
20
38
36

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.4
0.4
0.5
0.4
0.3
0.3
0.2
0
0
0

Wind Speed/Direction (mph)

13
14
14
14
14
13
13
12
9
8
6
5
5
4
3
3
2
4
7
10
9
9
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-8
-8
-7
-7
-6
-6
-4
-3
-3
-3
-3
-1
-3
-2
-3
-3
-4
-4
-4
-3
-4
-4
-5
-6

Dew Point (°C)

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

Relative Humidity (%)

84
82
82
81
79
75
71
68
66
65
64
62
64
64
66
68
72
78
78
80
78
78
78
78

Pressure (mb)

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

Ozone (du)

367
366
368
370
372
372
372
372
372
372
374
373
372
371
369
368
367
366
365
365
365
365
363
362

Friday 24

First Quarter 57%

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: 04:48, Set: 22:17, Transit: 13:35. Moon - Rise: No Rise, Set: No Set. Civil Dark: 23:55 - 03:05. Nautical Dark: N/A - N/A. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

77
86
93
96
95
95
96
99
94
94
94
89
92
72
100
100
100
100
100
100
100
99
97
97

Low Clouds (% Sky Obscured)

30
38
85
83
72
77
85
74
74
75
75
77
74
39
20
29
51
72
90
95
91
91
91
86

Medium Clouds (% Sky Obscured)

72
71
74
62
45
37
46
64
74
89
71
50
38
53
81
100
98
99
100
99
97
96
87
78

High Clouds (% Sky Obscured)

77
86
93
68
79
85
85
71
51
4
4
2
2
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
5
2
1
1
1
1
5
6
6
9
9
9
9
5
3
2
0
0
0
0
1

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

Precipitation Probability (%)

19
35
40
40
50
51
44
54
44
36
36
35
22
28
37
36
64
73
76
72
70
71
68
62

Precipitation Amount (mm)

0
0
0.1
0
0.2
0.2
0
0.2
0.1
0
0
0
0
0
0
0
0.2
0.3
0.4
0.3
0.3
0.4
0.4
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-6
-7
-6
-7
-6
-6
-6
-6
-6
-6
-6
-7
-6
-7
-7
-8
-8
-6
-7
-6
-7
-8
-9
-11

Dew Point (°C)

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

Relative Humidity (%)

79
78
76
79
78
78
79
79
78
81
79
76
72
71
73
81
85
86
89
89
89
87
87
87

Pressure (mb)

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

Ozone (du)

363
365
366
369
372
373
378
384
387
394
400
404
406
411
416
421
421
422
423
424
426
428
430
431

Saturday 25

Waxing Gibbous 68%

11:49

06:19

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 OK
00 OK
01 Bad
02 Bad
03 Bad
04 Bad

Sun - Rise: 04:43, Set: 22:21, Transit: 13:34. Moon - Rise: 11:49, Set: 06:19. Civil Dark: 00:04 - 02:55. Nautical Dark: N/A - N/A. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

96
99
98
97
96
96
95
97
98
100
89
77
66
62
59
56
42
27
12
19
25
32
41
50

Low Clouds (% Sky Obscured)

86
86
86
82
63
45
27
27
27
30
25
15
8
9
11
13
11
9
7
12
19
24
32
40

Medium Clouds (% Sky Obscured)

65
59
62
61
73
84
95
97
98
100
89
77
66
62
59
53
38
24
9
5
6
11
18
24

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)

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

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 (%)

55
48
40
30
31
29
21
34
37
36
35
32
22
24
24
19
29
30
17
28
30
26
28
28

Precipitation Amount (mm)

0.2
0.2
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
12
12
12
12
12
11
11
13
16
15
15
14
13
11
10
8
7
6
6
6
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
82
80
77
74
70
68
65
63
61
60
60
60
60
65
70
76
77
81
80
82
82
82
84

Pressure (mb)

1004
1004
1005
1005
1005
1005
1005
1005
1005
1006
1006
1006
1007
1007
1008
1008
1008
1009
1009
1009
1010
1010
1010
1011

Ozone (du)

433
434
435
435
436
437
439
441
444
447
450
453
456
459
460
462
463
463
463
463
463
463
463
459

Sunday 26

Waxing Gibbous 78%

14:04

05:42

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

Sun - Rise: 04:38, Set: 22:26, Transit: 13:34. Moon - Rise: 14:04, Set: 05:42. Civil Dark: 00:14 - 02:43. Nautical Dark: N/A - N/A. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

59
60
61
62
47
33
18
14
10
6
19
32
45
51
57
63
72
82
93
94
95
92

Low Clouds (% Sky Obscured)

46
44
43
44
35
27
18
14
10
6
18
29
40
37
35
34
28
23
18
17
17
16

Medium Clouds (% Sky Obscured)

33
32
32
31
24
17
10
7
4
1
6
12
19
25
25
15
16
8
9
10
21
22

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
1
1
2
9
18
26
33
40
50
40
30
18

ISS Passover

Visibility (miles)

2
2
4
7
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 (%)

24
22
18
15
23
22
10
19
23
20
30
31
18
30
30
17
18
18
6
11
12
3

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-10
-11
-11
-11
-11
-9
-9
-8
-8
-7
-6
-5
-5
-5
-5
-5
-5
-7
-7
-7
-8
-8

Dew Point (°C)

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

Relative Humidity (%)

84
85
82
77
74
69
64
60
58
57
56
56
57
57
62
67
73
76
79
82
80
82

Pressure (mb)

1011
1012
1012
1013
1013
1013
1013
1014
1014
1014
1014
1014
1015
1015
1015
1016
1016
1016
1016
1017
1017
1017

Ozone (du)

455
452
451
450
448
447
445
443
441
439
437
436
436
435
434
433
433
429
426
422
420
419

Forecast for Kilpisjärvi, Tunturi-Lappi, Finland (69.07,20.76)

Generated: 20/04/26 05:45:29. Forecast: 20/04/26 to 26/04/26. Timezone: UTC+3.00