Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 21

First Quarter 63%

16:06

00:07

23 Bad
00 OK
01 OK
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
21 Bad
22 Bad

Sun - Rise: 05:47, Set: 21:45, Transit: 13:46. Moon - Rise: 16:06, Set: 00:07. Civil Dark: 22:28 - 05:03. Nautical Dark: 23:33 - 04:01. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

54
47
46
87
96
100
99
96
100
99
100
100
100
98
99
93
86
98
100
80
64
74
56
51

Low Clouds (% Sky Obscured)

34
39
46
85
88
100
99
76
88
66
90
100
100
77
88
48
44
43
50
50
62
68
41
43

Medium Clouds (% Sky Obscured)

0
0
0
0
0
4
0
0
41
86
78
74
67
67
64
31
35
24
30
0
0
0
0
0

High Clouds (% Sky Obscured)

3
3
3
1
22
64
19
92
100
98
100
36
16
20
65
87
74
97
100
78
3
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
2
4
5
7
5
2
3
7
14
16
8
10
1
1
3
0
2
1
1
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)

7
6
5
4
4
4
5
6
5
7
9
9
11
13
13
14
15
15
15
15
14
12
11
9

Chance of Frost

Temperature (°C)

16
15
15
15
15
15
15
15
16
17
17
18
18
18
19
19
21
21
21
20
19
18
17
16

Feels Like (°C)

16
16
16
15
14
14
14
14
14
14
15
16
16
15
15
15
17
17
17
16
16
16
14
14

Dew Point (°C)

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

Relative Humidity (%)

81
85
86
80
71
71
76
82
79
65
65
64
69
61
51
50
49
48
49
52
54
56
60
64

Pressure (mb)

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

Ozone (du)

345
345
345
346
346
345
343
341
341
340
340
342
343
344
345
347
348
351
354
357
358
357
357
358

Wednesday 22

Waxing Gibbous 72%

17:20

00:23

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
21 OK
22 Good

Sun - Rise: 05:48, Set: 21:43, Transit: 13:46. Moon - Rise: 17:20, Set: 00:23. Civil Dark: 22:27 - 05:05. Nautical Dark: 23:30 - 04:03. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

61
59
66
75
71
57
72
73
72
95
100
75
84
86
89
91
71
68
69
68
89
44
28
18

Low Clouds (% Sky Obscured)

55
56
63
75
69
47
66
65
44
79
66
71
72
44
33
32
25
32
28
18
16
11
7
13

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
14
2
2

High Clouds (% Sky Obscured)

0
0
0
0
0
53
72
70
72
89
100
75
80
84
89
91
62
39
50
56
79
28
24
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 (%)

2
1
0
0
2
2
6
1
1
0
1
1
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)

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

Chance of Frost

Temperature (°C)

15
14
14
14
14
14
14
14
14
15
16
17
18
20
21
21
22
22
21
21
20
19
18
16

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

66
64
62
61
60
59
60
64
62
62
62
61
60
54
46
43
41
41
42
44
47
53
60
74

Pressure (mb)

1022
1022
1022
1022
1022
1021
1021
1021
1021
1022
1022
1022
1022
1022
1022
1021
1021
1021
1021
1021
1021
1021
1021
1021

Ozone (du)

358
357
357
357
358
359
358
356
353
349
346
343
341
339
336
335
333
330
328
326
324
324
322
321

Thursday 23

Waxing Gibbous 80%

18:31

00:46

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

Sun - Rise: 05:49, Set: 21:42, Transit: 13:46. Moon - Rise: 18:31, Set: 00:46. Civil Dark: 22:25 - 05:06. Nautical Dark: 23:28 - 04:05. Astro Dark: N/A - 02:10

Total Clouds (% Sky Obscured)

23
13
40
37
32
48
51
57
54
52
48
46
59
84
94
99
81
75
70
63
52
53
54
56

Low Clouds (% Sky Obscured)

20
13
38
37
32
48
51
57
54
52
48
46
59
64
55
39
38
49
32
24
36
31
25
20

Medium Clouds (% Sky Obscured)

2
1
3
4
2
21
18
23
48
40
27
20
19
41
44
36
51
50
37
13
25
17
10
2

High Clouds (% Sky Obscured)

1
0
0
0
1
4
6
8
0
3
4
14
21
73
93
98
57
46
48
48
36
36
28
31

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
3
8
6
1
1
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)

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

Chance of Frost

Temperature (°C)

15
14
14
13
13
13
13
13
14
15
17
19
21
22
23
24
25
25
25
25
25
24
22
20

Feels Like (°C)

16
16
15
15
15
14
15
14
16
17
19
21
23
24
24
23
24
24
24
24
25
25
23
21

Dew Point (°C)

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

Relative Humidity (%)

83
89
89
90
92
92
92
93
90
79
71
57
50
44
39
36
35
33
34
35
36
39
48
58

Pressure (mb)

1021
1021
1021
1021
1021
1021
1020
1020
1020
1020
1020
1020
1019
1019
1018
1017
1017
1016
1016
1015
1014
1014
1014
1014

Ozone (du)

320
319
319
319
320
321
322
322
322
321
321
322
322
322
322
323
324
323
323
323
324
324
324
324

Friday 24

Waxing Gibbous 88%

19:33

01:17

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

Sun - Rise: 05:51, Set: 21:40, Transit: 13:46. Moon - Rise: 19:33, Set: 01:17. Civil Dark: 22:23 - 05:08. Nautical Dark: 23:26 - 04:08. Astro Dark: 01:21 - 02:21

Total Clouds (% Sky Obscured)

66
84
73
69
81
77
87
51
46
41
33
23
20
21
25
25
25
25
28
59
100
100
99
98

Low Clouds (% Sky Obscured)

20
22
23
36
50
61
55
46
38
29
19
10
18
21
25
25
11
0
0
0
0
6
13
23

Medium Clouds (% Sky Obscured)

5
8
10
14
18
22
30
34
39
35
31
23
20
21
25
25
25
25
28
52
55
51
48
43

High Clouds (% Sky Obscured)

52
82
73
41
42
25
30
3
0
0
0
0
10
21
25
25
25
25
28
57
92
92
92
93

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
2
3
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
0
0

Wind Speed/Direction (mph)

4
2
1
2
2
4
5
5
6
7
9
10
11
11
11
12
13
12
12
11
10
9
6
4

Chance of Frost

Temperature (°C)

18
18
17
17
16
16
15
16
16
18
20
23
24
25
26
27
26
26
25
24
23
22
20
19

Feels Like (°C)

20
19
17
16
16
15
14
14
16
17
19
21
23
24
25
25
24
24
23
23
21
19
19
17

Dew Point (°C)

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

Relative Humidity (%)

64
67
68
69
69
70
72
70
67
56
46
40
37
35
33
30
28
28
30
30
31
35
46
53

Pressure (mb)

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

Ozone (du)

324
323
323
323
324
325
326
329
332
335
336
337
338
339
340
339
338
338
339
338
338
340
342
345

Saturday 25

Waxing Gibbous 85%

20:23

02:00

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
21 Bad
22 Bad

Sun - Rise: 05:52, Set: 21:39, Transit: 13:46. Moon - Rise: 20:23, Set: 02:00. Civil Dark: 22:22 - 05:10. Nautical Dark: 23:23 - 04:10. Astro Dark: 01:10 - 02:29

Total Clouds (% Sky Obscured)

43
45
53
64
95
93
96
71
81
82
78
78
96
92
89
92
95
95
88
81
74
76
78
81

Low Clouds (% Sky Obscured)

20
19
17
29
54
59
66
45
55
56
56
61
78
77
77
75
73
71
67
63
60
65
69
74

Medium Clouds (% Sky Obscured)

43
45
53
58
86
56
46
53
60
64
69
70
56
46
31
38
44
51
51
49
48
36
26
16

High Clouds (% Sky Obscured)

37
38
40
28
16
5
16
32
40
27
12
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
Very Light Rain
Light Rain
Very Light Rain
Very Light Rain
None

Precipitation Probability (%)

12
10
26
22
11
2
8
11
16
58
83
95
95
87
74
95
77
55
58
65
69
67
59
42

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.3
0.5
0.9
0.8
0.7
0.4
0.6
0.3
0
0
0.3
0.4
0.3
0.2
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

18
17
17
16
17
18
18
18
18
18
19
19
20
20
21
21
21
21
21
20
20
19
19
18

Feels Like (°C)

17
17
17
17
17
17
16
17
18
17
16
17
17
17
18
18
18
18
18
18
18
18
16
17

Dew Point (°C)

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

Relative Humidity (%)

55
58
64
73
83
76
78
79
81
69
59
52
49
51
47
47
47
47
48
50
51
53
55
59

Pressure (mb)

1005
1005
1005
1004
1004
1004
1004
1004
1004
1004
1004
1005
1005
1005
1005
1005
1006
1006
1006
1006
1007
1007
1007
1008

Ozone (du)

349
344
341
338
337
339
340
342
342
342
342
340
339
337
337
335
336
337
338
339
340
340
341
341

Sunday 26

Waxing Gibbous 93%

21:01

02:56

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 OK
19 OK
20 OK
21 OK
22 OK

Sun - Rise: 05:54, Set: 21:37, Transit: 13:46. Moon - Rise: 21:01, Set: 02:56. Civil Dark: 22:20 - 05:11. Nautical Dark: 23:21 - 04:13. Astro Dark: 01:02 - 02:37

Total Clouds (% Sky Obscured)

76
70
65
63
62
61
66
73
77
84
91
99
98
97
96
87
77
60
47
36
20
20
24
24

Low Clouds (% Sky Obscured)

71
69
65
54
41
29
38
54
68
73
76
79
83
85
86
70
54
35
26
17
10
14
18
20

Medium Clouds (% Sky Obscured)

15
10
3
13
26
37
27
18
12
16
25
33
32
25
23
31
41
45
41
36
20
20
24
24

High Clouds (% Sky Obscured)

0
1
1
3
5
6
6
5
4
25
52
77
77
69
57
35
19
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 (%)

34
32
26
27
25
12
22
25
26
34
40
46
44
37
21
17
11
1
9
9
0
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)

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

Chance of Frost

Temperature (°C)

17
17
17
16
16
16
15
16
17
17
18
19
20
20
21
21
21
21
21
21
21
20
19
18

Feels Like (°C)

18
18
17
17
15
16
16
15
15
14
17
16
16
17
17
17
19
19
18
19
19
19
18
19

Dew Point (°C)

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

Relative Humidity (%)

63
67
73
78
79
80
83
79
74
71
63
57
51
49
48
46
45
44
43
44
46
47
52
58

Pressure (mb)

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

Ozone (du)

341
342
343
344
345
345
346
345
344
343
343
343
343
342
341
340
339
338
337
336
334
332
332
331

Monday 27

Waxing Gibbous 97%

21:28

04:03

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 OK
17 OK
18 OK
19 OK

Sun - Rise: 05:55, Set: 21:36, Transit: 13:46. Moon - Rise: 21:28, Set: 04:03. Civil Dark: 22:18 - 05:13. Nautical Dark: 23:19 - 04:15. Astro Dark: 00:55 - 02:43

Total Clouds (% Sky Obscured)

37
44
50
55
69
79
73
70
64
69
75
80
73
71
73
61
51
37
33
28
22

Low Clouds (% Sky Obscured)

30
44
45
35
20
10
7
7
8
14
39
51
54
61
63
45
45
34
29
24
19

Medium Clouds (% Sky Obscured)

37
31
21
24
23
25
22
19
19
27
30
29
27
24
21
14
7
0
0
0
0

High Clouds (% Sky Obscured)

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

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 (%)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

17
17
17
17
16
16
15
17
18
19
22
24
26
27
27
28
28
28
28
27
27

Feels Like (°C)

20
19
19
18
16
16
15
16
15
14
22
23
24
24
24
24
30
29
27
27
27

Dew Point (°C)

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

Relative Humidity (%)

65
65
64
63
66
69
73
72
69
68
59
50
45
40
36
33
32
30
29
30
32

Pressure (mb)

1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1019
1018
1018
1018
1018
1018
1018
1018
1017

Ozone (du)

331
330
329
328
327
326
325
325
324
323
323
323
322
322
321
320
320
319
319
319
318

Forecast for Utrecht, Gemeente Utrecht, Netherlands (52.09,5.12)

Generated: 21/07/26 23:24:40. Forecast: 21/07/26 to 27/07/26. Timezone: UTC+2.00