Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 18

Waning Crescent 11%

No Rise

17:50

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

Sun - Rise: 06:37, Set: 18:58, Transit: 12:48. Moon - Rise: No Rise, Set: 17:50. Civil Dark: 19:27 - 06:08. Nautical Dark: 20:02 - 05:34. Astro Dark: 20:37 - 04:58

Total Clouds (% Sky Obscured)

42
68
71
100
97
89
56
4
4
17
32
19
29
32
62
74
56
65
83
94
97
94
100
100

Low Clouds (% Sky Obscured)

41
43
42
42
19
4
17
4
0
17
14
15
6
17
26
56
25
45
50
80
91
88
100
100

Medium Clouds (% Sky Obscured)

41
68
48
25
4
0
0
0
0
0
0
10
22
32
40
31
33
21
42
58
42
40
33
17

High Clouds (% Sky Obscured)

42
68
71
100
91
77
12
0
1
2
15
3
21
6
26
17
7
7
4
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
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
1
18
24
6
1
2
2
13
12
5
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)

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

Chance of Frost

Temperature (°C)

13
13
13
12
13
15
19
22
24
26
27
28
28
27
27
24
20
19
18
18
18
17
16
15

Feels Like (°C)

13
12
12
12
12
15
19
21
25
26
27
26
26
25
25
22
19
18
17
17
17
15
14
13

Dew Point (°C)

9
9
10
10
10
10
11
9
8
9
10
10
10
9
9
16
17
15
15
15
15
13
12
11

Relative Humidity (%)

75
76
81
84
81
72
57
44
34
33
33
33
32
32
33
59
80
81
80
80
81
76
75
74

Pressure (mb)

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

Ozone (du)

282
282
284
286
287
287
287
286
288
290
290
289
288
289
291
291
291
291
292
291
289
287
287
286

Friday 19

Waning Crescent 5%

04:05

18:11

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

Sun - Rise: 06:39, Set: 18:56, Transit: 12:47. Moon - Rise: 04:05, Set: 18:11. Civil Dark: 19:25 - 06:09. Nautical Dark: 20:00 - 05:35. Astro Dark: 20:35 - 04:59

Total Clouds (% Sky Obscured)

98
100
90
89
87
24
18
16
13
12
7
13
5
3
0
0
0
0
0
0
0
0
0
0

Low Clouds (% Sky Obscured)

92
99
81
79
81
24
18
16
13
12
7
13
5
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

17
14
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)

4
12
3
3
3
2
2
2
0
0
1
4
2
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
1
2
1
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
7
6
5
5
5
7
7
7
8
9
9
10
10
9
8
8
8
7
5
4
3
3
3

Chance of Frost

Temperature (°C)

15
14
13
12
12
12
14
15
16
17
18
18
19
19
18
17
14
13
11
9
7
6
5
4

Feels Like (°C)

12
11
11
10
10
10
13
13
14
15
16
16
16
16
16
15
12
10
9
7
7
5
4
3

Dew Point (°C)

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

Relative Humidity (%)

69
65
65
66
66
62
56
49
43
39
37
34
33
32
31
35
39
42
48
54
52
54
54
53

Pressure (mb)

1015
1016
1016
1017
1018
1018
1019
1019
1019
1018
1019
1018
1018
1018
1018
1019
1020
1020
1022
1023
1024
1025
1026
1026

Ozone (du)

285
285
286
287
287
289
291
289
287
287
286
285
284
286
286
284
285
284
282
281
279
280
279
278

Saturday 20

Waning Crescent 1%

05:15

18:28

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

Sun - Rise: 06:40, Set: 18:54, Transit: 12:47. Moon - Rise: 05:15, Set: 18:28. Civil Dark: 19:23 - 06:11. Nautical Dark: 19:58 - 05:36. Astro Dark: 20:33 - 05:01

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
2
0
0
4
4
4
4
1
0
0
3
2
9
4
2
6

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
2
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
2

High Clouds (% Sky Obscured)

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

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

Chance of Frost

Temperature (°C)

3
3
2
2
2
5
9
11
13
14
16
16
17
17
16
14
11
9
8
8
7
6
6
5

Feels Like (°C)

2
2
1
1
1
4
9
10
12
13
14
14
14
14
14
13
10
9
7
6
6
6
5
4

Dew Point (°C)

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

Relative Humidity (%)

55
56
58
60
61
51
42
36
32
27
24
22
21
21
23
32
40
43
44
46
48
50
52
57

Pressure (mb)

1026
1027
1027
1028
1028
1029
1029
1029
1029
1028
1028
1028
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1028

Ozone (du)

280
282
282
284
283
283
283
283
282
280
279
279
278
277
277
277
276
275
276
278
280
280
279
278

Sunday 21

New Moon 0%

06:23

18:44

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

Sun - Rise: 06:41, Set: 18:52, Transit: 12:46. Moon - Rise: 06:23, Set: 18:44. Civil Dark: 19:21 - 06:12. Nautical Dark: 19:56 - 05:37. Astro Dark: 20:31 - 05:02

Total Clouds (% Sky Obscured)

10
11
15
18
18
18
56
60
51
61
44
46
84
68
98
85
34
10
8
15
24
38
64
36

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
9

Medium Clouds (% Sky Obscured)

3
5
5
6
7
13
16
21
30
37
40
33
24
14
8
5
1
1
0
0
0
0
0
7

High Clouds (% Sky Obscured)

6
7
10
14
18
12
6
0
22
43
44
46
84
68
76
42
4
10
8
15
24
38
64
36

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

Chance of Frost

Temperature (°C)

5
5
5
5
6
8
12
14
16
18
20
21
22
22
21
20
19
17
16
14
13
13
13
13

Feels Like (°C)

4
4
4
4
5
7
9
10
13
14
16
18
19
18
17
16
15
15
14
13
12
12
11
10

Dew Point (°C)

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

Relative Humidity (%)

61
66
68
71
72
60
46
38
33
30
28
26
25
26
31
39
45
50
60
69
68
69
70
74

Pressure (mb)

1027
1027
1027
1027
1027
1027
1026
1026
1026
1025
1024
1023
1022
1021
1020
1020
1020
1020
1019
1019
1019
1019
1019
1018

Ozone (du)

278
279
278
279
278
278
278
277
277
277
277
278
279
279
279
280
281
282
280
278
278
279
278
278

Monday 22

Waxing Crescent 1%

07:29

19:00

03 OK
04 Bad
05 Bad
06 Bad
07 OK
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

Sun - Rise: 06:42, Set: 18:50, Transit: 12:46. Moon - Rise: 07:29, Set: 19:00. Civil Dark: 19:19 - 06:13. Nautical Dark: 19:54 - 05:39. Astro Dark: 20:29 - 05:03

Total Clouds (% Sky Obscured)

30
66
66
97
36
99
97
67
96
98
97
94
97
100
100
99
98
97
97
94
92
85
93
96

Low Clouds (% Sky Obscured)

21
34
25
15
3
2
1
0
27
55
78
14
24
24
39
46
30
25
0
0
14
28
42
44

Medium Clouds (% Sky Obscured)

11
14
16
14
20
28
28
31
43
48
58
30
50
70
70
70
66
61
59
57
60
64
69
69

High Clouds (% Sky Obscured)

30
66
66
97
36
91
87
52
82
82
77
90
95
99
93
86
80
68
59
56
56
47
34
21

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
8
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

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 (%)

1
1
2
3
2
2
2
0
21
31
38
9
14
12
29
37
35
31
26
22
26
34
47
57

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)

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

Chance of Frost

Temperature (°C)

13
13
13
13
13
14
16
18
20
22
23
24
24
23
23
21
19
18
17
17
17
17
16
17

Feels Like (°C)

11
11
10
10
9
12
12
14
16
18
20
21
22
22
23
22
21
21
16
17
18
18
18
17

Dew Point (°C)

8
9
9
9
9
9
8
9
9
9
9
9
11
12
14
15
15
16
16
15
15
15
15
15

Relative Humidity (%)

72
75
76
76
75
69
60
53
48
43
40
39
45
50
57
66
77
90
89
89
87
89
90
89

Pressure (mb)

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

Ozone (du)

277
278
278
277
278
278
279
279
278
278
278
277
277
277
277
276
276
276
274
273
272
272
271
271

Tuesday 23

Waxing Crescent 4%

08:35

19:17

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
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad

Sun - Rise: 06:43, Set: 18:48, Transit: 12:46. Moon - Rise: 08:35, Set: 19:17. Civil Dark: 19:17 - 06:14. Nautical Dark: 19:52 - 05:40. Astro Dark: 20:27 - 05:05

Total Clouds (% Sky Obscured)

96
93
92
92
92
93
96
98
99
99
100
100
100
100
96
92
88
92
96
98
99
99
99
100

Low Clouds (% Sky Obscured)

54
74
78
70
62
64
60
54
39
40
41
38
36
33
46
52
50
50
47
50
40
36
29
36

Medium Clouds (% Sky Obscured)

63
57
54
50
47
57
67
77
78
80
82
88
94
99
93
86
79
77
76
74
64
56
49
61

High Clouds (% Sky Obscured)

15
5
36
67
92
93
96
98
97
94
91
92
93
98
68
39
12
14
20
42
74
99
98
93

ISS Passover

Visibility (miles)

8
9
9
9
9
9
9
9
9
9
9
9
8
6
5
6
6
7
8
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None

Precipitation Probability (%)

57
41
30
20
17
23
31
40
42
42
39
60
73
83
89
89
84
70
55
35
23
16
11
27

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.2
0.4
0.5
0.7
0.7
0.6
0.4
0.3
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

16
16
16
17
17
17
19
20
21
22
22
23
22
21
20
20
19
19
19
19
18
18
18
18

Feels Like (°C)

18
18
18
18
18
18
18
19
19
20
20
21
24
24
24
23
23
22
21
21
21
21
21
21

Dew Point (°C)

15
15
15
16
16
16
16
17
17
18
18
18
18
18
19
19
18
18
18
18
18
18
17
17

Relative Humidity (%)

90
92
93
93
92
92
86
82
79
76
74
73
79
85
93
93
95
96
96
95
95
95
95
95

Pressure (mb)

1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1013
1013
1013
1013
1012
1013
1013
1013
1013
1013
1013
1013
1013
1013

Ozone (du)

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

Wednesday 24

Waxing Crescent 8%

09:41

19:37

Sun - Rise: 06:45, Set: 18:46, Transit: 12:45. Moon - Rise: 09:41, Set: 19:37. Civil Dark: 19:15 - 06:16. Nautical Dark: 19:50 - 05:41. Astro Dark: 20:25 - 05:06

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 Hemmingford, Montérégie, Canada (45.05,-73.58)

Generated: 18/09/25 03:06:46. Forecast: 18/09/25 to 24/09/25. Timezone: UTC-4.00