Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 9

Waning Gibbous 64%

22:08

11:45

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
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 07:40, Set: 16:27, Transit: 12:03. Moon - Rise: 22:08, Set: 11:45. Civil Dark: 17:01 - 07:06. Nautical Dark: 17:38 - 06:28. Astro Dark: 18:14 - 05:53

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

89
88
88
91
92
100
100
94
92
85
92
91
100
100
96
100
100
100
100
100
100
100
100
95

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
98
100
100
100
100
94
91
100
100
78
100
88
66
74
54
97
90

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
87
100
100
100
100
100
100
100
100
100
100
99
100
72
100
100
100

ISS Passover

Visibility (miles)

3
3
2
3
3
2
4
9
5
6
6
4
1
0
2
7
8
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
95
95
95
95
95
95
88
95
95
95
95
95
95
95
95
75
72
51
42
57
31
21
21

Precipitation Amount (mm)

2
2
2.3
2.2
1.7
1.4
0.8
0.3
0.5
0.5
0.9
1.5
1.3
0.6
0.8
0.5
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

4
4
2
5
2
3
2
2
1
1
3
3
5
7
12
14
15
14
13
13
13
13
13
13

Chance of Frost

Temperature (°C)

8
8
9
9
8
8
9
9
9
9
9
10
12
13
14
14
14
14
14
14
14
14
14
14

Feels Like (°C)

7
7
6
7
7
7
8
8
8
8
8
8
12
13
12
11
11
11
11
11
11
11
12
11

Dew Point (°C)

8
8
7
7
7
7
8
8
8
8
8
9
12
13
13
13
13
13
13
13
13
13
13
13

Relative Humidity (%)

95
95
91
91
91
93
93
93
93
95
96
96
98
100
98
96
96
96
95
95
95
93
93
93

Pressure (mb)

1021
1021
1021
1021
1021
1021
1020
1020
1019
1019
1019
1018
1018
1017
1017
1017
1017
1018
1018
1018
1018
1018
1018
1018

Ozone (du)

292
291
289
287
287
287
289
288
289
291
289
287
288
289
290
292
291
291
293
295
295
297
297
295

Wednesday 10

Waning Gibbous 53%

23:20

12:05

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
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 07:40, Set: 16:27, Transit: 12:04. Moon - Rise: 23:20, Set: 12:05. Civil Dark: 17:01 - 07:07. Nautical Dark: 17:38 - 06:29. Astro Dark: 18:14 - 05:54

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

98
100
100
100
98
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
98
100
100
100

Medium Clouds (% Sky Obscured)

54
100
54
52
56
60
60
55
59
100
95
71
81
94
100
100
55
57
56
42
67
60
59
76

High Clouds (% Sky Obscured)

100
100
100
100
100
100
91
92
100
52
69
65
74
54
87
51
73
100
82
100
100
47
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
7
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
Very Light Rain
Light Rain
Very Light Rain
Very Light Rain
Light Rain
None
Light Rain

Precipitation Probability (%)

15
19
22
18
8
13
16
13
15
17
28
28
34
27
35
39
46
62
95
68
73
85
71
89

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.9
0.2
0.2
0.4
0
0.4

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

14
14
14
14
14
14
14
14
14
14
14
14
14
14
14
14
14
14
13
13
13
13
13
13

Feels Like (°C)

11
11
11
11
11
12
11
12
12
12
11
12
11
11
11
12
11
11
11
10
11
11
11
11

Dew Point (°C)

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

Relative Humidity (%)

92
93
92
92
92
92
90
90
89
89
87
87
87
87
87
89
90
89
90
89
90
90
90
92

Pressure (mb)

1018
1018
1018
1019
1019
1020
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019

Ozone (du)

295
295
298
299
299
300
300
300
300
300
301
302
300
303
303
306
307
307
305
305
305
306
306
306

Thursday 11

Third Quarter 53%

00:28

12:22

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
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 07:41, Set: 16:27, Transit: 12:04. Moon - Rise: 00:28, Set: 12:22. Civil Dark: 17:01 - 07:07. Nautical Dark: 17:39 - 06:30. Astro Dark: 18:15 - 05:55

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
99
100
100
100
100
100
100
99
96
98
98
90
94

Low Clouds (% Sky Obscured)

100
100
100
100
90
98
100
100
100
98
100
79
100
100
100
100
100
97
90
83
64
63
59
71

Medium Clouds (% Sky Obscured)

57
50
47
48
45
45
45
45
61
44
42
36
35
35
35
26
28
28
27
22
16
13
12
6

High Clouds (% Sky Obscured)

100
100
100
100
63
100
64
100
100
100
85
78
54
61
19
41
65
74
75
63
54
47
30
35

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
1
4
2
2
0
0
0
0
0
0
0
0

Precipitation Type

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
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

94
95
95
95
95
95
95
95
95
88
69
62
55
33
22
38
23
19
12
15
16
10
11
12

Precipitation Amount (mm)

0.5
0.6
0.9
0.8
1.9
1.5
1.4
1
0.7
0.5
0.3
0.2
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

11
11
10
9
6
4
5
5
5
4
4
4
3
2
3
3
2
2
2
2
2
2
1
1

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
92
93
92
93
89
92
88
91
90
93
93
96
95
95
96
96
95
93
93
95
96
98
96

Pressure (mb)

1019
1020
1020
1021
1021
1021
1021
1021
1021
1021
1022
1022
1022
1022
1022
1022
1022
1022
1022
1021
1021
1021
1021
1021

Ozone (du)

306
304
303
302
300
297
296
296
293
291
289
290
291
292
291
294
296
294
295
293
289
289
292
290

Friday 12

Waning Crescent 43%

01:34

12:39

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
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 07:42, Set: 16:27, Transit: 12:05. Moon - Rise: 01:34, Set: 12:39. Civil Dark: 17:01 - 07:08. Nautical Dark: 17:39 - 06:31. Astro Dark: 18:15 - 05:55

Total Clouds (% Sky Obscured)

92
95
96
98
97
97
96
66
74
81
62
52
46
62
74
70
80
97
100
93
100
100
100
99

Low Clouds (% Sky Obscured)

80
74
78
81
74
62
39
38
40
50
34
25
20
23
26
34
36
38
45
42
35
32
30
24

Medium Clouds (% Sky Obscured)

2
6
7
4
4
2
0
8
11
14
8
5
2
8
19
32
30
29
21
14
8
0
0
0

High Clouds (% Sky Obscured)

27
34
41
48
43
40
36
11
9
6
6
7
6
5
13
3
11
10
21
39
75
100
99
98

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 (%)

9
13
13
14
18
18
24
27
27
27
26
19
13
13
11
5
7
8
3
5
5
2
3
2

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

10
9
10
10
10
10
10
10
9
10
11
10
10
9
9
9
9
8
9
9
9
9
9
8

Relative Humidity (%)

96
96
95
91
90
86
80
76
74
78
82
81
83
83
84
87
87
87
88
90
90
91
91
91

Pressure (mb)

1021
1020
1020
1021
1021
1020
1020
1019
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1017
1017

Ozone (du)

287
291
294
294
293
292
286
283
281
281
280
280
279
277
277
277
275
275
275
272
270
269
268
268

Saturday 13

Waning Crescent 33%

02:39

12:55

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
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 07:43, Set: 16:28, Transit: 12:05. Moon - Rise: 02:39, Set: 12:55. Civil Dark: 17:02 - 07:09. Nautical Dark: 17:39 - 06:31. Astro Dark: 18:15 - 05:56

Total Clouds (% Sky Obscured)

99
71
58
42
64
76
88
92
96
100
100
100
100
100
100
100
96
91
83
86
93
100
100
100

Low Clouds (% Sky Obscured)

18
17
14
14
18
19
21
24
31
38
50
58
67
70
63
57
50
58
60
61
58
59
52
46

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
7
10
20
40
68
91
74
59
43
38
42
36
54
77

High Clouds (% Sky Obscured)

97
64
42
18
41
57
70
81
91
100
100
100
100
100
100
100
96
91
79
82
90
99
99
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None

Precipitation Probability (%)

0
1
1
0
1
1
0
0
0
0
2
3
3
43
62
79
95
95
82
59
47
19
24
20

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.5
0.8
0.7
0.2
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

8
7
8
8
7
7
7
7
6
6
7
7
7
7
7
7
7
7
7
8
8
7
7
7

Relative Humidity (%)

93
93
95
90
83
75
70
67
65
68
73
76
77
81
82
84
85
87
87
90
88
88
87
85

Pressure (mb)

1017
1017
1017
1017
1017
1016
1015
1015
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1015
1015
1015
1016
1016

Ozone (du)

268
267
264
263
265
265
265
265
266
268
268
270
272
274
276
278
280
280
279
279
280
281
282
283

Sunday 14

Waning Crescent 24%

03:45

13:12

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
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 07:44, Set: 16:28, Transit: 12:06. Moon - Rise: 03:45, Set: 13:12. Civil Dark: 17:02 - 07:10. Nautical Dark: 17:39 - 06:32. Astro Dark: 18:15 - 05:57

Total Clouds (% Sky Obscured)

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

Low Clouds (% Sky Obscured)

40
40
44
45
55
56
58
59
57
55
60
65
69
66
66
64
64
69
72
71
71
73
65
54

Medium Clouds (% Sky Obscured)

99
95
91
86
73
67
60
64
65
66
75
84
92
92
93
92
93
94
96
93
91
88
71
54

High Clouds (% Sky Obscured)

100
100
100
100
100
99
99
100
100
100
100
100
100
100
100
100
97
93
90
86
86
81
87
92

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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

7
17
14
7
12
8
4
7
5
2
4
2
1
6
9
6
36
52
72
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
1.1
1.7
1.8
1.4
0.9

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
80
76
73
69
66
61
58
61
63
64
65
67
68
69
70
73
73
76
77
77
79
79
80

Pressure (mb)

1017
1017
1017
1018
1018
1018
1018
1018
1017
1017
1017
1017
1017
1017
1017
1017
1016
1016
1016
1015
1015
1015
1015
1015

Ozone (du)

284
284
285
285
286
286
285
285
284
283
282
281
281
281
282
283
285
285
286
287
285
284
282
283

Monday 15

Waning Crescent 16%

04:51

13:32

Sun - Rise: 07:44, Set: 16:28, Transit: 12:06. Moon - Rise: 04:51, Set: 13:32. Civil Dark: 17:02 - 07:10. Nautical Dark: 17:40 - 06:33. Astro Dark: 18:16 - 05:57

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

Generated: 09/12/25 06:00:55. Forecast: 09/12/25 to 15/12/25. Timezone: UTC-8.00