Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 13

Waning Crescent 27%

01:22

14:05

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

Sun - Rise: 06:46, Set: 16:45, Transit: 11:45. Moon - Rise: 01:22, Set: 14:05. Civil Dark: 17:14 - 06:17. Nautical Dark: 17:47 - 05:44. Astro Dark: 18:19 - 05:12

Total Clouds (% Sky Obscured)

34
26
21
41
70
70
24
0
0
2
24
48
40
91
100
90
97
54
47
57
85
40
50
77

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
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
41
70
70
24
0
0
2
22
31
40
83
100
78
95
30
28
40
77
25
33
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
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)

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

Chance of Frost

Temperature (°C)

20
20
18
14
12
11
11
10
9
9
9
8
8
7
7
7
7
7
9
16
19
21
22
22

Feels Like (°C)

16
16
15
11
8
7
7
7
5
5
4
3
3
3
1
1
1
1
4
12
16
18
19
19

Dew Point (°C)

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

Relative Humidity (%)

19
19
22
27
30
31
30
31
32
32
33
34
35
36
36
35
34
34
31
24
19
17
15
15

Pressure (mb)

1013
1013
1013
1014
1015
1015
1015
1015
1015
1015
1015
1014
1015
1014
1014
1014
1014
1014
1014
1012
1011
1010
1010
1009

Ozone (du)

240
238
238
238
238
237
237
238
238
238
237
237
237
237
237
236
234
233
233
233
232
231
232
231

Friday 14

Waning Crescent 18%

02:23

14:05

14 OK
15 Bad
16 Bad
17 OK
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

Sun - Rise: 06:47, Set: 16:44, Transit: 11:45. Moon - Rise: 02:23, Set: 14:05. Civil Dark: 17:13 - 06:18. Nautical Dark: 17:46 - 05:45. Astro Dark: 18:18 - 05:13

Total Clouds (% Sky Obscured)

33
50
100
30
91
87
94
82
89
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
2
0
0
0
0
0
2
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
2
2
0
0
0
0
0
0
0
0
0
0
0
7
53

High Clouds (% Sky Obscured)

16
32
100
25
90
86
94
82
89
100
100
100
100
100
100
100
100
100
100
100
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 (%)

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)

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

Chance of Frost

Temperature (°C)

21
21
18
15
12
11
10
10
10
10
10
10
10
8
7
7
7
7
9
14
18
20
21
21

Feels Like (°C)

19
18
15
10
7
6
5
5
6
6
5
4
5
3
1
1
1
0
3
9
12
14
16
18

Dew Point (°C)

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

Relative Humidity (%)

15
15
22
24
27
29
30
29
27
24
22
23
25
29
32
33
34
33
29
26
24
22
20
20

Pressure (mb)

1008
1008
1009
1010
1011
1011
1011
1011
1011
1011
1012
1012
1013
1013
1013
1014
1014
1014
1014
1014
1013
1012
1010
1010

Ozone (du)

231
230
228
227
227
228
228
227
227
226
225
226
226
227
228
229
228
228
228
228
229
230
229
229

Saturday 15

Waning Crescent 11%

03:24

14:25

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 OK
03 OK
04 OK
05 OK
06 OK
07 OK
08 Good
09 Good
10 OK
11 OK
12 OK
13 Bad

Sun - Rise: 06:48, Set: 16:44, Transit: 11:46. Moon - Rise: 03:24, Set: 14:25. Civil Dark: 17:13 - 06:19. Nautical Dark: 17:45 - 05:46. Astro Dark: 18:17 - 05:14

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
43
35
53
46
19
23
25
32
29
2
1
25
34
39
52

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)

55
66
95
100
100
100
59
60
55
43
35
45
4
19
23
17
20
18
2
1
17
19
27
38

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
43
35
53
46
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
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
1
0
0
0
0
0
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)

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

Chance of Frost

Temperature (°C)

20
18
16
15
13
12
12
11
11
10
8
8
7
6
6
6
6
6
11
14
15
16
16
17

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

21
27
32
31
33
34
35
36
39
40
44
46
46
47
48
50
51
51
45
36
33
31
29
28

Pressure (mb)

1009
1009
1009
1009
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1009
1009
1008
1007
1005

Ozone (du)

229
229
229
231
232
233
235
237
238
240
242
241
243
244
244
245
246
247
248
249
251
251
251
252

Sunday 16

Waning Crescent 6%

04:25

14:45

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

Sun - Rise: 06:50, Set: 16:43, Transit: 11:46. Moon - Rise: 04:25, Set: 14:45. Civil Dark: 17:12 - 06:20. Nautical Dark: 17:45 - 05:47. Astro Dark: 18:17 - 05:15

Total Clouds (% Sky Obscured)

81
71
84
42
71
70
80
88
100
100
100
100
100
100
100
100
100
100
94
87
64
21
14
24

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
2
2
12
8
12
18
29
51
52
56
53
44
16
10
6

Medium Clouds (% Sky Obscured)

81
71
82
38
62
65
75
86
90
95
100
100
100
100
100
100
99
55
52
40
45
21
14
24

High Clouds (% Sky Obscured)

0
0
0
0
13
15
40
66
100
100
100
100
100
100
81
100
93
94
46
40
29
21
12
13

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
0
0
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 (%)

4
5
4
6
5
2
5
7
3
13
24
30
46
38
29
36
33
24
26
26
27
24
19
13

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

Chance of Frost

Temperature (°C)

17
17
15
12
9
9
10
10
9
8
8
9
9
7
5
4
4
5
6
7
9
10
12
13

Feels Like (°C)

16
13
12
9
8
5
6
7
5
6
5
5
6
4
2
1
1
3
4
4
6
8
10
12

Dew Point (°C)

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

Relative Humidity (%)

28
28
35
41
46
45
45
47
47
51
52
51
58
67
79
86
96
94
88
78
67
58
46
40

Pressure (mb)

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

Ozone (du)

253
255
257
259
260
261
264
264
268
274
279
285
291
297
300
302
304
306
307
298
287
286
284
282

Monday 17

Waning Crescent 2%

05:26

15:07

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

Sun - Rise: 06:51, Set: 16:42, Transit: 11:46. Moon - Rise: 05:26, Set: 15:07. Civil Dark: 17:11 - 06:21. Nautical Dark: 17:44 - 05:48. Astro Dark: 18:16 - 05:16

Total Clouds (% Sky Obscured)

90
84
81
71
71
70
74
86
91
92
92
89
93
95
100
100
100
100
98
95
92
95
97
100

Low Clouds (% Sky Obscured)

4
2
0
2
2
2
16
15
7
6
15
30
26
22
26
26
25
25
17
8
1
16
31
43

Medium Clouds (% Sky Obscured)

21
12
0
0
1
2
10
3
2
5
6
0
0
2
33
21
26
23
27
18
9
21
36
52

High Clouds (% Sky Obscured)

67
58
39
38
36
60
66
79
86
86
86
83
87
94
100
99
99
99
97
94
91
94
97
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
1
0
9
6
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 (%)

20
18
3
11
10
1
3
3
0
1
2
0
0
1
0
0
1
0
0
0
0
2
3
4

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

Chance of Frost

Temperature (°C)

13
12
11
7
6
5
3
3
3
3
3
2
3
3
3
2
3
4
4
6
7
7
9
10

Feels Like (°C)

12
9
8
4
3
3
1
1
1
1
0
-0
0
0
-0
-1
0
1
1
1
2
1
7
7

Dew Point (°C)

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

Relative Humidity (%)

39
46
56
76
80
86
89
91
89
91
93
96
94
91
94
93
88
83
80
75
69
64
62
61

Pressure (mb)

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

Ozone (du)

280
280
281
282
284
285
286
286
285
284
285
286
287
290
291
292
293
294
295
296
297
297
297
297

Tuesday 18

Waning Crescent 0%

06:29

15:32

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

Sun - Rise: 06:52, Set: 16:41, Transit: 11:46. Moon - Rise: 06:29, Set: 15:32. Civil Dark: 17:11 - 06:23. Nautical Dark: 17:44 - 05:49. Astro Dark: 18:16 - 05:17

Total Clouds (% Sky Obscured)

100
100
100
100
100
99
89
79
68
73
78
85
91
90
93
86
79
72
54
38
18
30
42
54

Low Clouds (% Sky Obscured)

34
18
5
4
4
3
8
9
17
13
11
7
7
4
4
4
4
3
3
3
3
6
9
12

Medium Clouds (% Sky Obscured)

40
34
50
51
59
66
72
74
68
55
53
57
60
68
73
69
62
58
44
30
11
23
33
48

High Clouds (% Sky Obscured)

99
98
95
77
56
38
58
56
55
72
78
85
91
90
92
86
72
35
10
5
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 (%)

11
13
10
22
21
8
14
12
2
4
3
0
1
1
1
3
3
1
4
5
4
10
16
18

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)

3
2
2
2
1
1
2
2
3
3
4
4
4
5
5
6
6
6
5
4
3
2
3
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

59
62
66
71
75
76
80
80
80
80
82
80
82
81
81
81
77
73
69
64
58
54
53
51

Pressure (mb)

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

Ozone (du)

296
297
298
298
299
300
301
301
301
302
302
303
304
303
302
301
300
299
298
297
296
295
293
292

Wednesday 19

New Moon 0%

07:31

16:01

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
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad

Sun - Rise: 06:53, Set: 16:41, Transit: 11:47. Moon - Rise: 07:31, Set: 16:01. Civil Dark: 17:10 - 06:24. Nautical Dark: 17:43 - 05:50. Astro Dark: 18:15 - 05:18

Total Clouds (% Sky Obscured)

70
83
96
96
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

29
47
64
70
79
88
91
94
100
100
100
100
100
100
100
100
100
100
100
100
100

Medium Clouds (% Sky Obscured)

65
82
96
96
95
94
96
98
100
92
84
76
84
92
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

11
22
33
55
77
100
100
100
100
100
100
100
100
100
100
100
100
100
99
97
96

ISS Passover

Visibility (miles)

9
9
9
9
6
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

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

Precipitation Probability (%)

37
42
32
58
57
50
47
44
45
45
35
23
46
56
63
88
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0.2
0.2
0
0
0
0.2
0
0
0
0
0
0.3
0.6
0.9
1.1
1
0.8
0.5

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

9
8
7
5
5
5
4
4
4
4
4
4
4
3
3
3
2
2
2
2
2

Feels Like (°C)

6
6
6
6
1
2
2
2
2
2
1
1
1
1
1
1
-0
-1
-2
-2
-2

Dew Point (°C)

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

Relative Humidity (%)

50
54
58
65
71
76
83
86
93
96
96
96
96
96
98
98
100
100
100
100
100

Pressure (mb)

1009
1009
1010
1010
1010
1011
1011
1011
1011
1011
1010
1010
1009
1009
1009
1009
1010
1011
1012
1012
1012

Ozone (du)

291
290
289
288
289
290
291
291
292
293
293
293
294
293
292
292
292
292
293
295
297

Forecast for Boulder, Boulder, United States of America (40.01,-105.27)

Generated: 13/11/25 14:04:29. Forecast: 13/11/25 to 19/11/25. Timezone: UTC-7.00