Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 10

Full Moon 100%

20:59

06:10

16 Bad
17 Bad
18 OK
19 Bad
20 OK
21 OK
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 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 05:42, Set: 20:31, Transit: 13:06. Moon - Rise: 20:59, Set: 06:10. Civil Dark: 21:03 - 05:10. Nautical Dark: 21:43 - 04:29. Astro Dark: 22:29 - 03:43

Total Clouds (% Sky Obscured)

48
59
20
48
29
29
18
0
0
0
0
0
0
0
0
0
0
0
0
0
64
81
99
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
10
14
19
19

Medium Clouds (% Sky Obscured)

48
31
0
48
29
29
18
0
0
0
0
0
0
0
0
0
0
0
0
0
15
40
88
81

High Clouds (% Sky Obscured)

29
22
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
64
80
75
77

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 (%)

5
5
5
0
0
2
0
2
0
0
0
0
0
0
0
0
0
0
4
8
26
35
62
73

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)

15
14
11
15
9
10
9
9
8
10
9
5
4
4
3
2
2
6
10
11
12
13
14
11

Chance of Frost

Temperature (°C)

26
28
28
28
25
20
19
18
18
19
18
18
17
16
16
21
23
25
27
28
29
29
30
27

Feels Like (°C)

21
25
26
28
23
17
18
17
18
17
17
16
16
15
16
21
24
24
25
26
27
27
26
23

Dew Point (°C)

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

Relative Humidity (%)

28
23
23
23
31
42
46
51
51
48
49
48
48
47
44
39
32
30
27
26
24
23
21
30

Pressure (mb)

1010
1009
1010
1010
1011
1013
1013
1014
1014
1013
1012
1012
1012
1012
1013
1013
1014
1014
1014
1014
1014
1013
1012
1012

Ozone (du)

309
312
315
316
314
314
314
315
315
313
313
313
314
314
313
312
310
309
309
309
308
307
307
306

Friday 11

Waning Gibbous 98%

21:36

07:20

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
05 Bad
06 Bad
07 Good
08 OK
09 Bad
10 OK
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 05:42, Set: 20:30, Transit: 13:06. Moon - Rise: 21:36, Set: 07:20. Civil Dark: 21:02 - 05:11. Nautical Dark: 21:42 - 04:30. Astro Dark: 22:29 - 03:44

Total Clouds (% Sky Obscured)

79
100
97
100
100
100
92
94
88
96
87
81
88
90
79
6
39
52
39
75
76
72
63
59

Low Clouds (% Sky Obscured)

18
48
29
40
51
19
54
57
54
59
27
25
37
40
16
0
34
40
25
27
19
22
8
14

Medium Clouds (% Sky Obscured)

43
88
18
19
57
16
13
17
15
22
16
0
0
0
0
0
2
0
3
0
2
2
5
6

High Clouds (% Sky Obscured)

78
100
97
100
100
100
15
15
9
24
30
39
45
40
40
3
0
0
3
75
76
72
63
59

ISS Passover

Visibility (miles)

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

Precipitation Type

Light Rain
Light Rain
None
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
95
68
84
83
29
41
16
7
10
0
0
1
1
0
0
0
0
1
2
2
9
14
18

Precipitation Amount (mm)

0.5
1.4
0
0.6
0.9
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

8
11
10
6
9
7
7
6
4
3
3
3
2
2
2
2
2
3
3
3
4
6
7
9

Chance of Frost

Temperature (°C)

24
26
18
20
18
15
15
15
16
14
14
14
14
13
13
15
17
18
20
23
25
27
28
30

Feels Like (°C)

22
24
16
18
16
14
14
14
15
14
13
13
12
12
13
15
19
19
21
23
25
26
28
30

Dew Point (°C)

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

Relative Humidity (%)

40
37
81
62
77
92
83
82
78
83
86
90
89
87
87
79
76
70
63
53
44
37
33
29

Pressure (mb)

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

Ozone (du)

306
303
303
303
304
304
305
307
309
311
311
313
313
313
315
318
321
323
324
321
318
318
317
316

Saturday 12

Waning Gibbous 93%

22:07

08:31

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

Sun - Rise: 05:43, Set: 20:30, Transit: 13:06. Moon - Rise: 22:07, Set: 08:31. Civil Dark: 21:01 - 05:11. Nautical Dark: 21:42 - 04:31. Astro Dark: 22:28 - 03:46

Total Clouds (% Sky Obscured)

51
57
85
97
97
85
69
72
74
6
8
3
3
3
7
5
6
34
35
8
7
9
26
35

Low Clouds (% Sky Obscured)

20
2
3
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

24
23
48
65
35
4
0
0
0
0
0
0
0
0
3
2
3
25
22
4
5
9
26
35

High Clouds (% Sky Obscured)

51
57
85
86
90
72
47
51
49
5
4
1
1
1
0
0
0
0
0
1
1
1
1
1

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

Light Rain
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 (%)

52
22
43
51
30
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
4
6
14

Precipitation Amount (mm)

0.5
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)

11
11
11
10
6
7
7
6
6
6
6
5
5
5
5
4
3
1
3
5
9
10
10
11

Chance of Frost

Temperature (°C)

31
30
30
27
24
22
20
19
19
18
18
18
17
17
17
21
26
28
30
32
33
34
35
35

Feels Like (°C)

29
28
26
25
23
20
18
17
16
15
17
17
15
15
15
20
27
28
30
30
30
31
32
32

Dew Point (°C)

9
9
9
10
12
12
12
12
10
9
8
7
6
4
4
5
5
5
6
5
4
3
3
3

Relative Humidity (%)

26
27
27
34
47
53
60
61
58
57
54
50
47
42
40
36
26
23
21
19
15
14
14
13

Pressure (mb)

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

Ozone (du)

315
314
311
311
308
307
307
307
307
307
307
306
305
305
305
304
303
302
302
302
304
304
304
303

Sunday 13

Waning Gibbous 86%

22:33

09:41

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
05 OK
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 05:44, Set: 20:29, Transit: 13:06. Moon - Rise: 22:33, Set: 09:41. Civil Dark: 21:01 - 05:12. Nautical Dark: 21:41 - 04:32. Astro Dark: 22:27 - 03:47

Total Clouds (% Sky Obscured)

42
65
35
79
96
99
99
100
100
92
100
75
50
40
49
49
84
72
96
97
100
100
100
100

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)

42
61
19
50
46
34
9
0
0
0
0
1
2
1
12
24
27
23
14
10
15
22
29
58

High Clouds (% Sky Obscured)

0
0
27
57
87
98
99
100
100
92
100
75
50
40
29
20
40
55
90
97
100
100
100
100

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 (%)

17
13
21
25
26
23
14
0
0
0
0
1
0
0
0
0
0
2
4
5
12
28
40
40

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)

11
14
15
14
11
11
11
10
9
8
7
6
5
4
4
3
1
1
3
7
9
9
8
13

Chance of Frost

Temperature (°C)

35
35
34
32
29
26
23
21
21
21
20
20
20
20
20
23
27
28
30
31
32
33
34
33

Feels Like (°C)

32
30
28
28
25
23
20
18
18
18
18
18
17
17
17
21
26
26
27
28
29
29
29
27

Dew Point (°C)

3
3
4
5
8
9
10
10
10
9
8
7
7
6
6
7
6
6
6
5
4
2
1
5

Relative Humidity (%)

13
14
15
18
25
33
45
51
47
46
45
43
41
40
40
35
27
25
21
19
16
14
12
17

Pressure (mb)

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

Ozone (du)

303
302
302
301
301
301
303
304
304
304
304
304
305
305
305
306
307
307
305
305
306
307
307
307

Monday 14

Waning Gibbous 78%

22:57

10:51

16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 OK
00 Bad
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

Sun - Rise: 05:45, Set: 20:28, Transit: 13:06. Moon - Rise: 22:57, Set: 10:51. Civil Dark: 21:00 - 05:13. Nautical Dark: 21:40 - 04:33. Astro Dark: 22:26 - 03:48

Total Clouds (% Sky Obscured)

100
100
100
100
100
94
92
29
89
36
54
76
87
56
50
54
64
57
60
55
66
78
92
93

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
10
15
30
45
56
67

Medium Clouds (% Sky Obscured)

38
42
34
25
26
6
4
0
0
2
1
1
20
20
35
51
64
49
52
54
54
54
53
38

High Clouds (% Sky Obscured)

99
100
100
100
100
92
88
26
84
34
52
72
20
16
12
9
4
3
1
0
25
50
75
76

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
Light Rain

Precipitation Probability (%)

43
49
43
29
2
4
4
0
0
0
0
0
0
0
0
0
0
3
5
5
17
24
23
91

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
0.5

Wind Speed/Direction (mph)

14
10
13
13
9
7
8
7
6
6
7
6
11
9
6
4
3
5
7
9
11
13
13
14

Chance of Frost

Temperature (°C)

29
28
28
25
22
22
22
21
21
21
20
20
19
20
20
21
21
22
22
23
24
27
27
27

Feels Like (°C)

24
24
24
21
19
19
18
18
19
17
17
17
17
18
18
18
16
15
16
17
19
26
24
24

Dew Point (°C)

7
9
9
9
11
10
8
7
7
6
5
4
5
7
8
7
5
3
4
4
5
8
8
8

Relative Humidity (%)

25
29
31
36
48
45
41
38
39
38
37
36
39
42
46
40
34
30
29
29
29
30
29
30

Pressure (mb)

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

Ozone (du)

307
306
306
306
305
304
304
304
304
302
301
301
300
300
299
298
297
296
296
295
295
294
294
294

Tuesday 15

Waning Gibbous 67%

23:20

12:02

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
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 05:46, Set: 20:28, Transit: 13:06. Moon - Rise: 23:20, Set: 12:02. Civil Dark: 21:00 - 05:14. Nautical Dark: 21:39 - 04:34. Astro Dark: 22:25 - 03:49

Total Clouds (% Sky Obscured)

94
79
83
89
94
92
91
90
93
95
96
91
94
95
95
95
96
95
93
94
95
96
97
95

Low Clouds (% Sky Obscured)

66
71
65
64
64
63
32
26
23
30
36
57
78
95
95
95
96
95
93
94
95
95
94
91

Medium Clouds (% Sky Obscured)

25
21
25
37
53
41
25
11
16
11
5
26
46
67
43
22
4
2
1
0
12
24
35
37

High Clouds (% Sky Obscured)

75
76
67
65
65
60
57
55
40
35
15
3
2
0
10
24
46
58
65
72
60
48
36
45

ISS Passover

Visibility (miles)

7
5
3
5
7
9
9
9
9
8
6
5
3
2
0
0
0
1
0
0
0
3
5
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

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

Precipitation Probability (%)

95
95
95
95
95
95
65
12
27
29
25
30
34
38
32
28
19
21
22
24
53
69
81
85

Precipitation Amount (mm)

0.9
1.3
1.2
1.2
1.3
0.7
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.4
0.6
0.6

Wind Speed/Direction (mph)

12
10
11
6
3
4
3
2
3
3
4
5
5
4
3
1
2
4
4
4
4
4
4
5

Chance of Frost

Temperature (°C)

24
21
18
18
17
17
16
16
16
16
16
15
15
14
14
14
14
14
13
14
14
14
15
15

Feels Like (°C)

25
27
29
14
15
16
16
16
16
15
15
15
15
15
15
12
13
13
12
12
12
14
14
14

Dew Point (°C)

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

Relative Humidity (%)

43
63
90
88
86
83
82
81
81
85
89
92
93
95
96
95
96
95
95
93
93
93
92
93

Pressure (mb)

1014
1016
1018
1018
1019
1019
1019
1019
1018
1019
1019
1019
1019
1019
1019
1019
1019
1019
1018
1018
1017
1016
1015
1013

Ozone (du)

294
293
293
293
293
293
294
294
294
294
293
293
293
293
293
292
292
291
291
291
290
291
291
292

Wednesday 16

Waning Gibbous 56%

23:44

13:14

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

Sun - Rise: 05:46, Set: 20:27, Transit: 13:06. Moon - Rise: 23:44, Set: 13:14. Civil Dark: 20:59 - 05:15. Nautical Dark: 21:39 - 04:35. Astro Dark: 22:23 - 03:51

Total Clouds (% Sky Obscured)

90
88
87
90
90
85
75
65
44
24
4
3
1
0
0
0
0
2
3
5

Low Clouds (% Sky Obscured)

85
78
52
29
6
8
10
8
5
3
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

39
40
41
41
41
33
26
18
12
6
0
0
0
0
0
0
0
2
3
5

High Clouds (% Sky Obscured)

53
60
65
51
61
78
73
62
42
23
3
2
1
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

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

84
77
66
66
68
71
71
67
56
41
12
10
8
5
4
3
1
4
6
5

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

3
3
5
5
5
5
4
3
3
3
2
2
2
1
1
1
1
1
1
3

Chance of Frost

Temperature (°C)

16
17
17
17
16
16
15
15
15
14
14
14
14
13
13
13
15
16
19
22

Feels Like (°C)

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

Dew Point (°C)

14
13
13
14
14
14
13
13
12
11
11
9
9
9
8
8
8
9
9
8

Relative Humidity (%)

87
81
77
79
85
89
87
86
86
83
79
75
75
74
72
69
66
63
51
41

Pressure (mb)

1013
1013
1013
1014
1015
1016
1016
1017
1018
1018
1017
1017
1017
1018
1018
1018
1018
1019
1018
1017

Ozone (du)

291
291
291
291
291
291
292
292
293
295
297
299
299
299
298
297
296
294
293
293

Forecast for Niwot, Boulder, United States of America (40.10,-105.17)

Generated: 10/07/25 16:55:40. Forecast: 10/07/25 to 16/07/25. Timezone: UTC-6.00