Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 16

Waning Crescent 18%

01:20

16:50

15 Good
16 OK
17 OK
18 Good
19 OK
20 OK
21 OK
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

Sun - Rise: 06:26, Set: 18:52, Transit: 12:38. Moon - Rise: 01:20, Set: 16:50. Civil Dark: 19:22 - 05:56. Nautical Dark: 19:58 - 05:20. Astro Dark: 20:35 - 04:43

Total Clouds (% Sky Obscured)

18
24
33
16
28
39
32
51
84
81
80
77
69
74
76
86
97
100
100
100
98
100
100
84

Low Clouds (% Sky Obscured)

0
7
0
0
0
0
0
20
43
43
44
41
48
49
54
46
0
0
0
0
0
13
6
4

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)

6
24
33
16
28
39
32
48
66
61
62
50
35
42
43
66
97
100
100
100
98
100
100
84

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
2
7
10
12
10
7
6
3
2
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
6
5
4
3
2
3
4
4
4
4
4
4
4
4
4
4
4
3
4
5
6
7
7

Chance of Frost

Temperature (°C)

22
22
21
20
16
14
13
12
12
11
11
10
10
10
10
10
10
14
18
20
21
23
23
24

Feels Like (°C)

25
25
23
20
17
13
13
12
11
11
10
10
9
9
8
8
9
12
17
20
21
22
22
22

Dew Point (°C)

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

Relative Humidity (%)

46
47
58
70
83
83
83
83
83
83
83
85
85
87
88
87
85
78
70
64
61
57
55
54

Pressure (mb)

1024
1024
1023
1023
1023
1024
1023
1023
1023
1023
1023
1023
1023
1022
1022
1022
1022
1022
1021
1021
1021
1020
1019
1019

Ozone (du)

275
275
275
274
274
274
274
274
274
275
275
275
275
276
277
278
278
278
278
279
279
278
277
277

Wednesday 17

Waning Crescent 11%

02:37

17:20

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

Sun - Rise: 06:27, Set: 18:50, Transit: 12:37. Moon - Rise: 02:37, Set: 17:20. Civil Dark: 19:20 - 05:57. Nautical Dark: 19:56 - 05:21. Astro Dark: 20:32 - 04:45

Total Clouds (% Sky Obscured)

79
85
74
45
43
97
94
95
99
100
89
44
100
100
92
100
21
100
15
15
8
27
36
28

Low Clouds (% Sky Obscured)

4
0
0
0
0
18
24
21
9
3
0
0
0
0
0
0
0
0
0
0
0
12
23
25

Medium Clouds (% Sky Obscured)

0
3
2
32
43
45
39
40
40
47
30
30
30
30
21
25
21
14
15
0
0
0
2
3

High Clouds (% Sky Obscured)

79
85
74
45
43
97
91
86
99
100
89
44
97
93
92
100
21
100
15
15
8
27
36
6

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
2
2
2
2
2
2
1
1
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
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)

7
7
6
4
4
4
4
4
4
4
4
4
4
4
4
4
4
3
6
8
9
9
10
10

Chance of Frost

Temperature (°C)

24
24
23
21
18
16
15
14
14
14
14
15
14
14
13
13
13
15
19
20
21
23
23
24

Feels Like (°C)

23
23
22
20
18
15
14
14
13
13
13
14
14
13
12
12
11
14
17
18
18
20
21
22

Dew Point (°C)

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

Relative Humidity (%)

55
58
64
75
82
83
85
87
86
83
84
89
92
92
90
84
77
74
68
65
61
58
56
52

Pressure (mb)

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

Ozone (du)

278
278
279
279
279
279
278
278
278
277
277
278
280
282
283
284
283
283
284
284
285
285
285
284

Thursday 18

Waning Crescent 5%

03:51

17:44

15 OK
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

Sun - Rise: 06:28, Set: 18:48, Transit: 12:37. Moon - Rise: 03:51, Set: 17:44. Civil Dark: 19:18 - 05:58. Nautical Dark: 19:54 - 05:23. Astro Dark: 20:30 - 04:46

Total Clouds (% Sky Obscured)

36
84
99
100
97
83
90
97
90
92
97
94
89
88
69
45
41
52
65
88
85
71
58
62

Low Clouds (% Sky Obscured)

21
32
68
52
72
62
73
72
71
87
97
87
85
87
68
45
41
41
35
27
31
34
34
33

Medium Clouds (% Sky Obscured)

18
35
48
60
53
33
29
63
59
43
35
42
24
0
0
0
0
23
51
77
67
58
49
55

High Clouds (% Sky Obscured)

3
51
66
4
3
3
3
0
0
0
0
3
3
12
4
3
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
6
8
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
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

4
33
37
35
50
18
7
8
3
3
2
0
2
1
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

11
10
10
8
6
5
6
7
8
7
6
5
5
4
4
4
4
5
6
7
9
10
11
12

Chance of Frost

Temperature (°C)

25
25
22
20
18
17
17
16
15
14
13
12
12
10
9
7
6
8
10
12
14
14
15
15

Feels Like (°C)

23
24
21
20
18
17
16
15
13
12
11
10
9
7
6
6
6
8
9
11
11
11
11
11

Dew Point (°C)

14
14
17
18
16
16
16
15
14
13
11
9
8
7
6
5
5
5
5
5
4
2
2
2

Relative Humidity (%)

51
52
72
89
89
93
95
95
90
92
90
83
77
81
80
88
93
81
71
61
51
43
39
40

Pressure (mb)

1010
1010
1010
1011
1011
1011
1011
1011
1011
1012
1012
1012
1012
1013
1013
1014
1015
1015
1015
1016
1015
1015
1015
1015

Ozone (du)

284
285
285
286
286
287
286
286
284
283
284
284
287
290
291
290
291
291
291
292
292
292
292
294

Friday 19

Waning Crescent 1%

05:03

18:03

15 Bad
16 Bad
17 OK
18 OK
19 Good
20 Good
21 Good
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 OK
11 Good
12 Good
13 Good
14 Good

Sun - Rise: 06:30, Set: 18:46, Transit: 12:37. Moon - Rise: 05:03, Set: 18:03. Civil Dark: 19:16 - 06:00. Nautical Dark: 19:51 - 05:24. Astro Dark: 20:28 - 04:48

Total Clouds (% Sky Obscured)

54
44
27
20
15
11
4
0
0
0
0
0
0
0
0
0
0
9
16
23
15
15
10
12

Low Clouds (% Sky Obscured)

30
30
24
20
15
11
4
0
0
0
0
0
0
0
0
0
0
9
16
23
15
14
10
7

Medium Clouds (% Sky Obscured)

54
44
27
19
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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
8

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
1
1
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)

12
11
11
10
8
8
8
7
6
5
4
4
4
4
4
4
5
5
6
7
7
8
9
10

Chance of Frost

Temperature (°C)

15
14
14
12
9
8
7
6
5
4
3
2
1
1
0
0
1
3
6
8
10
11
12
13

Feels Like (°C)

11
10
10
9
8
7
6
5
4
2
2
1
0
-1
-1
-1
-0
2
3
6
7
9
9
10

Dew Point (°C)

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

Relative Humidity (%)

39
39
42
45
55
61
64
64
65
63
63
64
66
69
71
74
71
60
53
44
39
37
34
33

Pressure (mb)

1015
1016
1016
1017
1018
1019
1020
1021
1022
1022
1023
1024
1025
1025
1026
1027
1027
1028
1028
1028
1028
1028
1027
1027

Ozone (du)

298
298
299
298
297
299
300
300
299
298
298
297
295
294
293
291
288
288
286
285
284
282
282
281

Saturday 20

Waning Crescent 0%

06:12

18:19

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

Sun - Rise: 06:31, Set: 18:44, Transit: 12:36. Moon - Rise: 06:12, Set: 18:19. Civil Dark: 19:14 - 06:01. Nautical Dark: 19:49 - 05:26. Astro Dark: 20:26 - 04:49

Total Clouds (% Sky Obscured)

13
13
26
49
66
49
27
20
19
15
13
29
23
14
15
19
21
36
34
38
29
22
13
21

Low Clouds (% Sky Obscured)

3
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
4
7
11
7
4
0
3
7
7
5
2
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

13
13
26
49
61
49
27
16
19
15
13
29
23
1
3
8
13
19
21
23
9
4
3
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
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)

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

Chance of Frost

Temperature (°C)

13
13
13
11
8
7
7
6
6
5
5
4
3
3
2
4
5
6
9
12
15
17
18
19

Feels Like (°C)

10
11
10
10
7
5
5
5
4
4
3
3
2
1
1
2
2
1
5
6
7
8
10
10

Dew Point (°C)

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

Relative Humidity (%)

33
34
37
45
50
52
53
53
53
54
56
58
60
61
64
61
59
56
46
38
32
32
30
30

Pressure (mb)

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

Ozone (du)

280
279
277
276
277
276
276
276
275
275
276
276
277
278
279
279
279
279
279
279
279
279
280
280

Sunday 21

New Moon 1%

07:19

18:34

15 OK
16 OK
17 OK
18 OK
19 OK
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

Sun - Rise: 06:32, Set: 18:42, Transit: 12:36. Moon - Rise: 07:19, Set: 18:34. Civil Dark: 19:12 - 06:02. Nautical Dark: 19:47 - 05:27. Astro Dark: 20:24 - 04:51

Total Clouds (% Sky Obscured)

31
40
34
38
45
60
74
85
78
71
66
65
74
86
83
99
100
97
94
91
92
93
94
78

Low Clouds (% Sky Obscured)

0
0
1
1
0
0
0
0
2
3
4
5
3
1
21
42
63
56
49
42
44
47
45
35

Medium Clouds (% Sky Obscured)

0
0
17
34
45
35
17
5
9
14
22
26
30
32
54
68
86
73
61
49
44
40
35
35

High Clouds (% Sky Obscured)

0
40
34
38
45
60
70
57
63
69
66
65
74
86
83
91
89
80
69
43
36
34
36
29

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
6
5
6
8
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
Very Light Rain
Light Rain
Very Light Rain
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
1
1
0
1
1
0
16
26
32
49
57
62
50
33
15
17

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

19
19
18
16
14
11
11
11
11
10
9
9
9
9
9
10
11
13
15
17
19
20
21
21

Feels Like (°C)

18
17
16
16
15
14
7
8
9
8
8
8
5
5
5
7
7
8
11
12
14
14
15
16

Dew Point (°C)

3
5
7
6
5
4
4
4
4
3
3
3
3
3
3
5
7
9
10
12
13
13
14
14

Relative Humidity (%)

35
41
48
52
56
60
61
61
61
63
64
65
65
67
67
72
75
77
74
72
69
66
64
62

Pressure (mb)

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

Ozone (du)

280
280
280
282
284
286
283
280
277
276
275
274
273
273
273
272
271
270
271
271
272
273
273
273

Monday 22

Waxing Crescent 4%

08:26

18:49

15 Bad
16 Bad
17 Bad
18 Bad
19 OK
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 06:33, Set: 18:40, Transit: 12:36. Moon - Rise: 08:26, Set: 18:49. Civil Dark: 19:10 - 06:03. Nautical Dark: 19:45 - 05:28. Astro Dark: 20:21 - 04:52

Total Clouds (% Sky Obscured)

63
48
38
28
18
32
49
59
61
63
67
53
45
39
27
29
26

Low Clouds (% Sky Obscured)

27
18
12
6
0
0
0
0
0
0
0
8
18
32
27
29
26

Medium Clouds (% Sky Obscured)

36
38
33
28
18
27
31
33
23
17
10
11
13
16
14
13
11

High Clouds (% Sky Obscured)

22
30
23
16
8
19
30
38
41
50
67
53
45
39
27
19
0

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

18
12
23
30
22
25
29
28
37
40
40
35
36
41
42
44
33

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

10
10
9
8
6
5
5
6
6
6
7
7
6
6
5
5
5

Chance of Frost

Temperature (°C)

22
23
24
23
22
20
20
20
19
18
18
18
17
17
16
17
17

Feels Like (°C)

21
20
19
20
20
20
20
21
21
20
19
18
17
17
17
17
17

Dew Point (°C)

15
15
16
16
15
14
15
16
16
15
15
15
14
14
14
15
15

Relative Humidity (%)

62
62
62
64
67
68
72
77
81
82
82
82
85
86
89
87
85

Pressure (mb)

1012
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1012
1012
1012
1012
1012

Ozone (du)

272
272
271
270
270
269
269
269
269
269
269
269
269
269
270
270
271

Forecast for Sainte-Marie, Chaudière-Appalaches, Canada (46.41,-71.06)

Generated: 16/09/25 15:29:09. Forecast: 16/09/25 to 22/09/25. Timezone: UTC-4.00