Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 26

Waxing Gibbous 82%

17:59

03:27

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

Sun - Rise: 05:28, Set: 21:43, Transit: 13:36. Moon - Rise: 17:59, Set: 03:27. Civil Dark: 22:28 - 04:43. Nautical Dark: 23:34 - 03:36. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
4
57
71
57
62
59
67
74
73
47
51
29
28
21
8
1
1

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
20
4
10
20
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
3
42
59
35
32
25
15
12
13
12
19
9
0
0
5
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
1
0
0
1
38
44
39
20
19
14
27
20
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
1
2
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)

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

Chance of Frost

Temperature (°C)

27
24
21
19
18
16
15
15
14
14
14
14
15
16
18
20
21
22
23
23
23
23
22
21

Feels Like (°C)

29
26
22
21
19
17
16
16
15
13
12
14
14
15
16
18
20
21
22
23
22
22
21
20

Dew Point (°C)

17
17
15
15
13
12
13
13
12
11
10
11
10
9
9
9
9
10
10
11
11
11
11
11

Relative Humidity (%)

52
62
68
73
76
77
85
90
89
82
80
78
72
63
55
48
46
44
45
45
46
46
48
51

Pressure (mb)

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

Ozone (du)

318
319
320
320
322
323
323
322
321
321
321
323
323
323
324
325
324
324
324
326
327
327
327
329

Wednesday 27

Waxing Gibbous 89%

19:14

03:40

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

Sun - Rise: 05:27, Set: 21:44, Transit: 13:36. Moon - Rise: 19:14, Set: 03:40. Civil Dark: 22:30 - 04:42. Nautical Dark: 23:37 - 03:34. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

1
1
2
2
2
2
2
2
2
2
1
1
1
1
2
3
13
46
64
26
4
10
31
56

Low 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

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
9
26
48
1
1
9
25
43

High Clouds (% Sky Obscured)

0
1
2
2
1
1
0
0
0
0
0
0
0
0
0
0
0
1
43
25
4
1
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)

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

Chance of Frost

Temperature (°C)

20
18
16
14
13
12
11
10
9
9
9
10
12
14
16
18
20
21
23
23
24
24
24
24

Feels Like (°C)

19
17
15
13
12
11
10
9
9
8
8
9
10
13
15
17
18
20
21
22
23
23
23
24

Dew Point (°C)

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

Relative Humidity (%)

54
59
62
64
68
71
73
76
77
80
78
73
62
54
47
40
37
34
33
33
35
35
38
45

Pressure (mb)

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

Ozone (du)

331
333
333
334
333
332
333
334
334
335
336
338
339
342
342
342
342
342
342
342
342
343
344
345

Thursday 28

Waxing Gibbous 94%

No Rise

03:55

20 OK
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

Sun - Rise: 05:26, Set: 21:45, Transit: 13:37. Moon - Rise: No Rise, Set: 03:55. Civil Dark: 22:31 - 04:40. Nautical Dark: 23:39 - 03:32. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

47
95
95
85
76
86
86
92
77
69
100
94
84
83
100
100
100
100
100
100
100
93
86
82

Low Clouds (% Sky Obscured)

0
0
0
0
21
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

36
33
32
22
39
26
64
44
43
37
33
46
26
26
3
15
17
56
36
27
54
72
65
82

High Clouds (% Sky Obscured)

0
95
90
65
33
68
44
75
51
37
100
72
67
55
100
100
100
100
100
100
100
82
79
78

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
8
0
0
0
0
0
3
4
3
13
18
23

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)

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

Chance of Frost

Temperature (°C)

22
20
18
17
16
16
15
15
15
14
14
15
17
19
23
25
27
28
30
30
31
31
30
28

Feels Like (°C)

23
21
19
16
16
15
14
12
13
12
12
13
16
17
22
23
26
27
29
30
30
30
30
29

Dew Point (°C)

13
12
11
9
9
9
8
8
8
8
8
9
10
10
11
13
14
15
17
18
18
18
18
18

Relative Humidity (%)

54
59
62
61
61
63
64
63
63
66
67
66
61
53
48
45
44
45
46
48
46
45
50
55

Pressure (mb)

1023
1023
1023
1023
1023
1023
1023
1022
1022
1022
1022
1022
1022
1022
1022
1022
1021
1021
1021
1020
1020
1020
1020
1020

Ozone (du)

345
345
346
347
347
344
343
342
340
339
339
340
342
348
349
345
342
341
338
337
336
334
334
336

Friday 29

Waxing Gibbous 98%

20:29

04:15

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

Sun - Rise: 05:26, Set: 21:47, Transit: 13:37. Moon - Rise: 20:29, Set: 04:15. Civil Dark: 22:33 - 04:39. Nautical Dark: 23:41 - 03:30. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

89
94
100
100
100
100
97
89
76
84
89
94
90
86
82
73
63
53
54
53
55
55
52
27

Low Clouds (% Sky Obscured)

0
0
0
10
21
33
47
62
76
82
85
89
85
82
79
67
56
44
43
39
36
31
26
23

Medium Clouds (% Sky Obscured)

72
94
55
57
94
100
89
63
15
25
23
52
47
43
39
30
9
7
18
13
2
2
2
2

High Clouds (% Sky Obscured)

83
88
78
76
87
100
77
39
12
8
4
0
5
11
16
11
6
1
1
5
5
6
8
4

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

Precipitation Probability (%)

23
30
42
76
58
46
52
45
29
49
37
14
11
4
3
4
2
0
0
0
15
1
1
2

Precipitation Amount (mm)

0
0
0
0.2
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
5
3
5
4
3
4
3
3
4
3
3
3
2
2
1
2
3
4
5
7
8
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

27
25
23
20
19
19
18
18
17
18
18
20
19
21
23
25
26
27
27
27
27
25
25
24

Dew Point (°C)

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

Relative Humidity (%)

65
70
70
74
76
78
81
82
86
89
89
83
77
71
66
62
59
54
51
48
47
50
48
53

Pressure (mb)

1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1019
1019
1019
1018
1018
1017
1017
1016
1016
1016

Ozone (du)

336
335
334
335
336
336
341
343
344
341
339
338
338
338
338
338
338
338
339
339
340
340
341
340

Saturday 30

Waxing Gibbous 100%

21:41

04:42

20 OK
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

Sun - Rise: 05:25, Set: 21:48, Transit: 13:37. Moon - Rise: 21:41, Set: 04:42. Civil Dark: 22:34 - 04:38. Nautical Dark: 23:43 - 03:28. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

32
51
66
79
69
64
81
90
100
82
66
53
100
99
99
96
92
89
92
95
99
98
98
98

Low Clouds (% Sky Obscured)

29
34
45
35
23
11
7
4
5
10
3
5
64
82
94
85
74
62
57
57
57
56
51
46

Medium Clouds (% Sky Obscured)

0
2
2
14
7
10
14
25
42
54
64
53
69
64
62
43
25
9
21
33
45
62
78
90

High Clouds (% Sky Obscured)

24
45
65
60
56
51
67
84
100
70
39
9
68
42
18
29
39
50
65
82
97
82
70
76

ISS Passover

Visibility (miles)

9
9
9
7
9
9
9
8
9
9
2
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
Light Rain
Very Light Rain
None
None
None
Light Rain
Light Rain
None
None
Very Light Rain
Light Rain
Very Light Rain
None
Very Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
None
None
None
None

Precipitation Probability (%)

8
31
72
37
4
6
45
95
74
53
38
46
95
76
38
66
78
84
66
56
40
24
13
2

Precipitation Amount (mm)

0
0
0.7
0.2
0
0
0
1.2
0.4
0
0
0.2
1.2
0.3
0
0.3
0.5
0.6
0.3
0.2
0
0
0
0

Wind Speed/Direction (mph)

8
8
7
6
6
5
5
4
3
4
4
4
5
1
2
3
5
10
14
14
14
15
13
12

Chance of Frost

Temperature (°C)

23
20
18
16
16
15
15
15
15
15
15
16
17
18
20
22
22
21
21
20
20
19
19
19

Feels Like (°C)

24
21
19
17
16
16
16
15
15
15
16
18
18
19
19
20
21
23
23
22
21
20
19
19

Dew Point (°C)

15
14
13
15
14
14
14
14
15
15
15
15
16
16
16
16
17
18
19
18
17
16
15
15

Relative Humidity (%)

60
68
71
89
90
89
92
93
95
96
96
93
92
85
79
72
76
81
85
84
82
81
78
77

Pressure (mb)

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

Ozone (du)

340
342
342
340
340
340
339
339
340
341
345
350
354
353
352
351
351
350
349
352
356
359
362
365

Sunday 31

Full Moon 100%

22:47

05:20

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

Sun - Rise: 05:24, Set: 21:49, Transit: 13:37. Moon - Rise: 22:47, Set: 05:20. Civil Dark: 22:35 - 04:37. Nautical Dark: 23:45 - 03:26. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

97
95
94
97
99
100
93
92
90
83
75
67
60
56
56
61
62
65
75
85
95
97
98
100

Low Clouds (% Sky Obscured)

54
61
67
72
79
86
84
83
84
75
60
44
34
22
12
15
18
19
34
48
61
57
61
66

Medium Clouds (% Sky Obscured)

69
50
26
22
19
25
21
20
21
23
22
21
24
26
28
23
20
14
23
29
33
39
48
52

High Clouds (% Sky Obscured)

70
65
66
73
78
83
50
26
0
1
2
2
2
2
1
4
6
8
28
46
65
72
78
86

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
7
10
13
19
21
20
15
9
1
7
6
0
0
1
1
11
12
9

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
76
78
81
82
85
86
89
90
92
90
89
86
77
68
62
57
52
48
51
54
57
61
65

Pressure (mb)

1014
1014
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1016
1016
1015
1015
1015
1015
1015
1014
1014
1014

Ozone (du)

368
367
367
367
363
358
353
352
350
349
347
345
343
342
341
339
339
339
338
336
334
332
332
331

Monday 1

Waning Gibbous 97%

23:42

06:11

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
12 Bad
13 Bad

Sun - Rise: 05:23, Set: 21:50, Transit: 13:37. Moon - Rise: 23:42, Set: 06:11. Civil Dark: 22:37 - 04:36. Nautical Dark: 23:47 - 03:25. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
99
99
98
99
99
100

Low Clouds (% Sky Obscured)

67
55
37
41
46
51
57
62
67
68
69
71
71
72
72
64
55
49

Medium Clouds (% Sky Obscured)

58
66
72
81
89
98
98
97
97
94
92
91
89
88
87
91
96
100

High Clouds (% Sky Obscured)

92
96
100
100
100
100
92
86
77
87
93
100
97
91
86
91
95
100

ISS Passover

Visibility (miles)

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

Fog (%)

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
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

9
8
10
18
28
41
42
40
37
55
76
95
94
85
71
69
67
68

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.4
0.8
0.6
0.5
0.3
0.3
0.3
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

19
18
18
19
19
18
18
15
15
15
15
15
15
15
16
16
16
16

Dew Point (°C)

14
13
13
13
14
14
15
15
15
15
15
15
15
16
16
16
16
16

Relative Humidity (%)

68
71
74
78
83
87
93
93
95
95
96
96
98
98
96
96
95
92

Pressure (mb)

1013
1013
1013
1013
1012
1012
1012
1011
1011
1010
1010
1010
1009
1009
1009
1008
1008
1008

Ozone (du)

331
333
334
336
342
347
352
356
359
362
362
361
361
361
362
363
363
364

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

Generated: 26/05/26 20:03:37. Forecast: 26/05/26 to 01/06/26. Timezone: UTC+2.00