Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 4

Waning Gibbous 88%

00:55

08:25

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
23 Bad
00 Bad

Sun - Rise: 05:22, Set: 21:53, Transit: 13:37. Moon - Rise: 00:55, Set: 08:25. Civil Dark: 22:40 - 04:34. Nautical Dark: 23:53 - 03:22. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

93
86
84
74
100
96
100
100
100
78
100
100
88
96
100
99
100
81
77
100
97
95
83
74

Low Clouds (% Sky Obscured)

53
44
51
42
53
48
69
57
53
60
71
59
69
68
76
62
46
72
59
47
60
60
58
55

Medium Clouds (% Sky Obscured)

38
50
41
74
87
73
65
40
58
58
97
65
17
6
8
32
12
18
17
43
31
62
36
40

High Clouds (% Sky Obscured)

13
17
47
43
90
11
95
99
98
9
90
90
53
77
98
98
88
1
25
90
90
90
83
56

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
7
6
5
3
4
6
6
9
8
7
8
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None

Precipitation Probability (%)

4
3
0
14
7
11
22
50
68
73
81
95
79
92
94
95
62
60
59
87
85
73
80
31

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.4
0.4
0.4
0.5
1.7
0.4
0.6
0.6
1
0.3
0
0.3
0.8
0.7
0.4
0.8
0

Wind Speed/Direction (mph)

13
14
13
13
12
12
13
14
16
17
18
18
17
17
17
17
19
16
14
13
12
11
10
12

Chance of Frost

Temperature (°C)

15
14
14
13
14
14
14
15
15
15
16
17
16
17
17
17
17
17
17
16
15
14
13
13

Feels Like (°C)

12
11
11
11
10
10
11
11
11
11
12
13
12
13
14
13
13
14
15
15
13
12
12
12

Dew Point (°C)

13
12
12
12
12
11
12
13
12
11
12
12
11
13
13
13
12
11
11
11
11
12
12
12

Relative Humidity (%)

89
90
92
92
90
86
84
87
80
77
73
70
73
74
76
79
72
65
69
73
79
87
92
92

Pressure (mb)

1001
1001
1001
1000
1000
1000
1000
1000
1000
1000
1000
999
999
999
999
999
1000
1000
1000
1000
1001
1002
1003
1004

Ozone (du)

379
383
387
390
393
397
395
391
389
387
391
391
392
398
402
406
406
408
407
402
399
401
402
403

Friday 5

Waning Gibbous 81%

01:18

09:40

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
23 Bad
00 Bad

Sun - Rise: 05:21, Set: 21:54, Transit: 13:38. Moon - Rise: 01:18, Set: 09:40. Civil Dark: 22:42 - 04:34. Nautical Dark: 23:55 - 03:20. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

88
73
76
88
91
93
83
100
89
83
85
82
79
82
79
90
79
70
89
87
81
71
72
81

Low Clouds (% Sky Obscured)

60
60
66
63
62
61
70
76
85
73
71
70
59
65
72
54
55
55
55
49
39
33
37
35

Medium Clouds (% Sky Obscured)

77
9
13
60
50
46
16
48
31
36
40
43
52
52
37
52
35
20
31
44
53
43
41
50

High Clouds (% Sky Obscured)

88
50
33
72
71
1
1
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
7
6
4
4
5
5
6
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
2
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
Very Light Rain
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

19
10
13
12
9
18
50
78
84
76
71
68
53
50
38
27
23
11
7
4
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0.2
0.7
0.9
0.6
0.6
0.5
0
0.2
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

13
13
12
12
11
10
10
12
12
11
11
10
10
10
10
10
10
10
8
5
4
3
3
3

Chance of Frost

Temperature (°C)

13
13
12
12
12
12
13
14
14
14
15
15
16
17
18
18
18
18
17
16
16
13
13
12

Feels Like (°C)

11
11
10
10
9
9
10
11
12
12
13
13
15
15
15
16
15
15
15
14
14
14
13
13

Dew Point (°C)

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

Relative Humidity (%)

92
92
95
95
95
95
93
87
86
89
83
85
79
73
70
60
56
55
58
64
68
78
81
83

Pressure (mb)

1004
1005
1005
1006
1006
1007
1008
1009
1009
1010
1011
1011
1012
1012
1012
1013
1013
1013
1014
1014
1014
1015
1015
1015

Ozone (du)

403
403
402
402
402
402
402
399
393
388
389
386
381
377
375
373
372
373
374
375
378
374
374
369

Saturday 6

Waning Gibbous 72%

01:35

10:56

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
23 Bad
00 Bad

Sun - Rise: 05:21, Set: 21:55, Transit: 13:38. Moon - Rise: 01:35, Set: 10:56. Civil Dark: 22:43 - 04:33. Nautical Dark: 23:57 - 03:19. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

82
75
92
100
100
100
100
100
100
100
100
100
99
98
99
100
100
100
97
87
78
68
65
57

Low Clouds (% Sky Obscured)

36
25
33
50
48
46
42
33
29
29
28
47
45
50
45
58
71
54
67
58
57
54
46
38

Medium Clouds (% Sky Obscured)

51
46
62
32
20
53
67
98
99
100
99
97
99
97
98
100
98
100
95
40
32
45
2
41

High Clouds (% Sky Obscured)

0
1
5
100
100
100
100
87
100
85
100
100
0
9
13
60
79
100
24
20
30
1
8
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
6
8
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
None
Light Rain
None
None
None
None
Light Rain
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
2
6
18
25
20
29
52
38
58
44
29
25
44
63
43
22
17

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0
0.4
0
0
0
0
0.4
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

12
11
10
9
9
9
10
11
12
13
13
14
15
15
15
15
15
13
13
14
13
13
11
11

Dew Point (°C)

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

Relative Humidity (%)

83
87
90
93
93
91
87
80
73
67
63
56
51
45
53
54
62
72
81
75
82
95
92
92

Pressure (mb)

1015
1015
1014
1014
1014
1014
1014
1014
1013
1013
1013
1013
1013
1012
1012
1011
1011
1011
1011
1011
1011
1011
1012
1012

Ozone (du)

368
366
367
367
367
366
367
368
368
368
370
372
371
372
376
383
386
384
385
387
389
388
390
392

Sunday 7

Waning Gibbous 63%

01:48

12:12

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
23 Bad
00 Bad

Sun - Rise: 05:20, Set: 21:56, Transit: 13:38. Moon - Rise: 01:48, Set: 12:12. Civil Dark: 22:44 - 04:32. Nautical Dark: 23:59 - 03:17. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

58
66
69
72
80
87
96
89
80
73
65
57
53
52
54
53
57
61
65
78
89
100
100
100

Low Clouds (% Sky Obscured)

30
41
44
51
55
56
55
57
60
64
58
51
45
40
35
30
35
40
45
30
14
0
14
26

Medium Clouds (% Sky Obscured)

22
29
12
16
44
27
35
27
15
2
4
1
0
3
5
8
12
19
21
20
17
15
54
57

High Clouds (% Sky Obscured)

1
22
0
0
0
0
0
3
8
12
10
8
5
7
8
9
7
6
5
37
70
100
100
100

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

51
56
33
34
29
13
27
30
40
49
46
42
26
9
4
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.2
0.2
0
0
0
0
0
0
0
0.2
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

13
13
13
13
13
14
14
14
15
17
17
18
18
18
18
19
20
20
19
18
17
15
14
13

Feels Like (°C)

10
10
10
10
9
10
11
11
12
14
15
15
16
16
16
17
17
17
16
16
15
14
12
12

Dew Point (°C)

12
12
12
12
12
13
13
14
14
14
15
15
16
16
16
13
11
10
9
10
11
10
10
10

Relative Humidity (%)

93
95
93
95
93
93
95
96
93
86
83
82
86
86
83
69
55
51
52
59
67
72
75
78

Pressure (mb)

1012
1012
1013
1013
1014
1014
1015
1016
1017
1018
1018
1019
1020
1021
1021
1021
1021
1021
1021
1021
1021
1022
1022
1022

Ozone (du)

391
390
394
400
402
391
385
381
377
374
370
369
369
368
368
366
364
363
361
360
361
361
362
363

Monday 8

Third Quarter 52%

02:00

13:29

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
23 Bad
00 Bad

Sun - Rise: 05:20, Set: 21:57, Transit: 13:38. Moon - Rise: 02:00, Set: 13:29. Civil Dark: 22:45 - 04:32. Nautical Dark: 00:00 - 03:16. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
98
96
95
96
98
100
100
100
100
100
99
100
98
95
93
98
99
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

39
38
38
42
33
22
10
7
3
0
4
11
19
25
31
37
31
24
18
20
22
24
40
56

Medium Clouds (% Sky Obscured)

62
57
57
68
77
89
80
100
100
100
96
87
89
80
70
55
49
46
40
58
79
99
98
95

High Clouds (% Sky Obscured)

100
90
81
71
71
70
70
80
90
100
99
99
98
98
95
93
98
99
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
6
5
7
8
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
Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
29
43
45
41
36
30
24
16
31
41
46
72
76

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
0.4
0.4

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

13
12
12
12
12
12
13
15
17
18
20
21
21
21
21
21
22
21
20
19
18
16
15
15

Feels Like (°C)

12
11
11
10
10
10
12
13
15
16
17
18
19
19
19
18
19
19
19
19
15
15
15
15

Dew Point (°C)

10
9
9
8
8
8
10
11
11
12
12
12
13
15
13
12
11
12
13
13
13
13
12
12

Relative Humidity (%)

80
80
79
77
76
77
80
75
68
65
61
57
57
66
61
55
51
57
63
70
74
78
82
82

Pressure (mb)

1021
1021
1020
1020
1020
1019
1019
1019
1018
1018
1018
1017
1016
1016
1015
1015
1014
1014
1014
1013
1013
1013
1012
1012

Ozone (du)

362
362
363
366
367
365
364
362
361
360
365
372
375
375
375
374
374
373
372
371
372
373
373
378

Tuesday 9

Waning Crescent 41%

02:11

14:48

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
20 OK
21 OK
22 OK
23 OK
00 OK

Sun - Rise: 05:19, Set: 21:58, Transit: 13:38. Moon - Rise: 02:11, Set: 14:48. Civil Dark: 22:46 - 04:31. Nautical Dark: 00:02 - 03:15. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
100
100
99
98
96
97
98
99
96
93
90
81
74
68
56
47
38
40
37
38
38
39

Low Clouds (% Sky Obscured)

72
59
56
57
55
52
49
67
81
93
85
73
61
57
56
58
46
32
17
12
6
2
7
13

Medium Clouds (% Sky Obscured)

95
96
98
100
98
95
93
92
94
94
89
82
74
55
35
17
14
11
7
6
3
1
7
14

High Clouds (% Sky Obscured)

100
100
100
100
70
43
20
19
14
7
10
13
16
11
3
0
0
0
0
0
0
4
3
2

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

73
92
95
95
95
95
95
95
87
77
74
69
64
60
51
37
31
23
2
3
2
0
1
2

Precipitation Amount (mm)

0.3
0.6
0.9
1.1
1.1
0.9
0.8
0.6
0.5
0.4
0.4
0.3
0.3
0.3
0.2
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

6
7
7
8
9
10
11
12
13
15
17
17
17
18
17
16
16
14
12
11
8
6
4
5

Chance of Frost

Temperature (°C)

15
14
14
13
13
13
13
14
14
14
14
14
15
15
16
16
17
16
16
16
14
13
11
11

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
82
87
90
95
92
86
83
80
79
78
73
67
62
58
54
50
53
55
58
62
68
73
78

Pressure (mb)

1011
1011
1010
1010
1010
1010
1010
1011
1011
1012
1013
1014
1015
1015
1016
1016
1017
1017
1018
1018
1018
1018
1019
1019

Ozone (du)

383
388
394
400
405
408
411
413
411
409
407
409
410
412
411
411
411
401
391
381
376
370
365
362

Wednesday 10

Waning Crescent 30%

02:22

16:10

Sun - Rise: 05:19, Set: 21:58, Transit: 13:39. Moon - Rise: 02:22, Set: 16:10. Civil Dark: 22:47 - 04:31. Nautical Dark: 00:03 - 03:14. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

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

Generated: 04/06/26 01:41:17. Forecast: 04/06/26 to 10/06/26. Timezone: UTC+2.00