Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 28

Waxing Gibbous 76%

12:30

02:21

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

Sun - Rise: 07:50, Set: 16:36, Transit: 12:13. Moon - Rise: 12:30, Set: 02:21. Civil Dark: 17:10 - 07:16. Nautical Dark: 17:47 - 06:39. Astro Dark: 18:23 - 06:03

Total Clouds (% Sky Obscured)

100
100
85
98
100
100
100
100
100
100
100
95
100
100
100
100
98
46
42
75
90
100
65
67

Low Clouds (% Sky Obscured)

0
0
2
7
21
10
6
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

84
77
37
35
30
16
3
12
21
24
16
3
9
5
10
7
31
17
4
19
13
5
7
2

High Clouds (% Sky Obscured)

89
45
85
98
100
100
100
100
100
100
100
95
100
100
100
100
95
37
31
60
79
100
61
64

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)

5
4
3
3
3
3
3
3
3
3
3
3
3
3
3
4
4
4
4
4
4
3
4
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

1
0
-1
-1
-1
-2
-1
-1
-2
-2
-2
-3
-3
-2
0
2
4
5
5
6
5
4
3
2

Dew Point (°C)

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

Relative Humidity (%)

80
82
80
81
81
81
80
78
77
76
76
75
75
70
64
59
55
54
56
58
64
70
72
71

Pressure (mb)

1034
1034
1034
1033
1033
1033
1033
1033
1032
1032
1032
1032
1032
1033
1032
1032
1032
1031
1030
1030
1030
1030
1030
1029

Ozone (du)

300
299
296
293
296
296
296
295
293
294
296
296
296
300
301
305
307
310
310
310
313
315
320
322

Monday 29

Waxing Gibbous 76%

13:00

03:43

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

Sun - Rise: 07:50, Set: 16:37, Transit: 12:14. Moon - Rise: 13:00, Set: 03:43. Civil Dark: 17:11 - 07:16. Nautical Dark: 17:48 - 06:39. Astro Dark: 18:24 - 06:03

Total Clouds (% Sky Obscured)

40
37
97
100
90
63
57
56
49
40
27
36
36
38
37
5
3
11
4
4
0
5
2
4

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)

9
13
18
5
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1

High Clouds (% Sky Obscured)

29
27
95
100
90
63
57
56
49
40
27
36
36
38
36
4
2
7
3
2
0
5
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
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)

3
3
3
3
3
3
3
3
3
3
3
3
3
3
4
4
5
5
5
4
3
3
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

69
71
71
71
68
66
66
64
65
64
64
61
61
56
50
46
45
43
43
45
49
53
55
57

Pressure (mb)

1029
1029
1029
1028
1028
1028
1028
1027
1027
1026
1026
1026
1026
1026
1026
1025
1024
1023
1022
1022
1022
1022
1022
1022

Ozone (du)

325
327
324
321
320
323
322
321
319
319
318
316
314
312
309
304
302
300
300
295
294
294
295
296

Tuesday 30

Waxing Gibbous 85%

13:39

05:08

20 Good
21 OK
22 OK
23 OK
00 OK
01 Good
02 Good
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
16 Bad
17 Bad
18 Bad
19 Bad

Sun - Rise: 07:50, Set: 16:38, Transit: 12:14. Moon - Rise: 13:39, Set: 05:08. Civil Dark: 17:12 - 07:16. Nautical Dark: 17:49 - 06:39. Astro Dark: 18:25 - 06:03

Total Clouds (% Sky Obscured)

4
22
24
25
24
10
12
64
83
42
53
67
100
92
88
84
83
62
100
90
92
95
99
93

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)

1
2
2
2
2
2
6
40
83
42
32
40
50
41
34
27
42
62
100
90
92
95
99
93

High Clouds (% Sky Obscured)

2
11
14
20
14
5
1
6
1
1
0
0
20
20
25
25
25
26
25
25
27
28
25
23

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
1
6
11
14
2
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)

3
3
3
2
2
2
2
1
2
2
2
1
2
1
2
2
2
2
2
1
2
1
1
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

5
4
3
3
1
2
2
2
0
-1
-1
1
0
-1
0
2
4
6
6
7
6
4
3
1

Dew Point (°C)

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

Relative Humidity (%)

58
60
60
61
62
62
63
64
64
64
65
65
66
64
57
54
50
50
48
52
53
56
58
59

Pressure (mb)

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

Ozone (du)

297
297
297
298
299
300
299
298
299
299
298
297
296
297
297
301
302
300
301
300
299
299
300
302

Wednesday 31

Waxing Gibbous 93%

14:33

06:29

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: 07:50, Set: 16:39, Transit: 12:14. Moon - Rise: 14:33, Set: 06:29. Civil Dark: 17:13 - 07:16. Nautical Dark: 17:50 - 06:39. Astro Dark: 18:26 - 06:03

Total Clouds (% Sky Obscured)

87
82
71
65
58
74
84
95
96
98
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
6
12
17
70
14
60
58
60
65
60
65
65
65
65
60
60
60
55
55

Medium Clouds (% Sky Obscured)

87
82
71
65
58
74
84
92
89
90
89
91
85
95
98
99
100
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

17
20
22
29
32
43
55
67
78
89
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
8
5
5

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
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
5
11
37
40
43
51
68
73
71

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0.5
0.5

Wind Speed/Direction (mph)

1
2
2
2
2
2
2
2
2
2
1
2
2
1
1
1
1
2
1
1
1
2
2
2

Chance of Frost

Temperature (°C)

4
4
3
2
2
1
0
-1
-1
-1
-1
-1
0
0
1
3
4
5
6
6
6
5
5
4

Feels Like (°C)

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

Dew Point (°C)

-3
-4
-4
-5
-5
-6
-7
-7
-8
-8
-8
-8
-7
-7
-7
-5
-4
-2
-0
1
3
2
2
3

Relative Humidity (%)

60
60
60
60
62
60
60
60
58
58
60
57
59
58
56
56
57
60
66
72
79
82
85
89

Pressure (mb)

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

Ozone (du)

306
307
311
315
316
317
317
317
316
315
315
315
314
313
313
312
312
311
310
313
312
312
313
313

Thursday 1

Waxing Gibbous 98%

15:41

07:39

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: 07:50, Set: 16:40, Transit: 12:15. Moon - Rise: 15:41, Set: 07:39. Civil Dark: 17:14 - 07:16. Nautical Dark: 17:51 - 06:39. Astro Dark: 18:27 - 06:03

Total Clouds (% Sky Obscured)

100
100
94
88
81
86
90
94
91
89
86
91
95
100
100
100
100
100
100
100
100
100
100
98

Low Clouds (% Sky Obscured)

60
60
55
55
55
55
61
61
47
46
2
1
0
50
71
54
38
59
77
93
85
78
71
74

Medium Clouds (% Sky Obscured)

100
99
79
88
40
49
25
26
25
89
20
25
65
100
97
94
91
93
95
98
97
97
96
93

High Clouds (% Sky Obscured)

100
100
75
50
0
0
0
6
23
28
28
52
77
82
94
97
100
100
100
100
99
98
96
88

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

52
51
44
46
48
60
34
15
2
0
0
4
9
14
56
56
51
55
50
37
51
56
56
72

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
91
93
93
93
93
94
93
93
93
93
94
96
93
89
85
80
78
79
79
81
83
86
89

Pressure (mb)

1008
1008
1008
1008
1007
1007
1007
1007
1007
1006
1006
1005
1005
1005
1004
1004
1004
1003
1002
1002
1001
1002
1003
1003

Ozone (du)

314
312
311
311
310
309
309
309
309
310
310
313
314
315
318
323
328
333
333
332
332
334
337
340

Friday 2

Waxing Gibbous 100%

17:01

08:33

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: 07:50, Set: 16:41, Transit: 12:15. Moon - Rise: 17:01, Set: 08:33. Civil Dark: 17:14 - 07:16. Nautical Dark: 17:52 - 06:39. Astro Dark: 18:28 - 06:03

Total Clouds (% Sky Obscured)

95
91
92
96
100
97
95
92
91
90
88
90
96
100
100
100
100
89
76
62
72
83
96
97

Low Clouds (% Sky Obscured)

78
82
82
81
83
77
71
66
55
45
34
38
41
44
43
37
33
36
38
36
41
48
58
68

Medium Clouds (% Sky Obscured)

90
88
92
96
100
89
77
68
62
56
50
53
79
99
99
99
99
82
61
39
57
77
96
97

High Clouds (% Sky Obscured)

82
65
46
59
74
71
62
61
67
77
86
90
95
100
100
100
100
78
56
33
56
76
90
75

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

73
45
53
60
67
75
72
59
55
48
33
34
35
33
45
45
41
37
31
17
39
50
64
76

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

1
2
3
2
3
3
3
4
4
4
3
3
1
1
3
3
3
4
4
3
3
4
6
9

Chance of Frost

Temperature (°C)

5
4
4
4
4
4
4
4
4
3
3
3
3
3
4
5
6
7
7
7
6
6
5
4

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
94
96
94
94
93
93
93
93
94
93
94
93
93
91
91
90
88
90
90
91
90
88
86

Pressure (mb)

1003
1003
1004
1003
1003
1003
1003
1003
1003
1003
1003
1003
1004
1005
1006
1006
1006
1007
1007
1007
1007
1007
1007
1007

Ozone (du)

344
348
352
353
354
355
355
354
354
355
356
356
360
364
367
370
372
375
375
375
375
378
381
383

Saturday 3

Full Moon 99%

18:24

09:14

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: 07:50, Set: 16:42, Transit: 12:16. Moon - Rise: 18:24, Set: 09:14. Civil Dark: 17:15 - 07:16. Nautical Dark: 17:53 - 06:39. Astro Dark: 18:28 - 06:03

Total Clouds (% Sky Obscured)

97
98
98
98
98
97
98
98
98
99
100
99
97
95
97
98
100
99
99
98

Low Clouds (% Sky Obscured)

83
95
95
96
97
95
93
89
91
93
94
94
95
95
97
95
95
90
87
80

Medium Clouds (% Sky Obscured)

97
98
75
49
24
48
73
98
97
96
95
86
78
70
79
89
99
98
97
95

High Clouds (% Sky Obscured)

60
55
37
22
2
16
31
52
65
82
97
81
59
31
54
77
100
82
67
60

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

84
93
95
95
83
89
87
76
66
61
50
49
61
75
73
72
61
64
57
24

Precipitation Amount (mm)

0.4
0.5
0.6
0.6
0.4
0.5
0.4
0.3
0.2
0.2
0
0
0
0.3
0.2
0.2
0
0
0
0

Wind Speed/Direction (mph)

11
14
17
17
17
17
14
13
13
12
11
9
9
7
7
7
7
8
7
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
86
86
86
89
91
86
82
77
79
79
79
82
82
82
81
79
77
74
71

Pressure (mb)

1007
1007
1008
1008
1009
1010
1011
1012
1013
1013
1014
1014
1014
1015
1015
1015
1014
1014
1014
1014

Ozone (du)

382
381
380
375
370
365
364
363
362
363
365
366
365
363
362
361
359
358
358
358

Forecast for West Portland, Multnomah, United States of America (45.46,-122.72)

Generated: 28/12/25 20:23:18. Forecast: 28/12/25 to 03/01/26. Timezone: UTC-8.00