Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 4

Waning Crescent 16%

02:33

14:31

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
06 Bad
07 Bad
08 Bad

Sun - Rise: 07:03, Set: 16:27, Transit: 11:44. Moon - Rise: 02:33, Set: 14:31. Civil Dark: 17:03 - 06:27. Nautical Dark: 17:43 - 05:47. Astro Dark: 18:22 - 05:08

Total Clouds (% Sky Obscured)

93
95
71
98
99
92
94
88
85
89
86
81
80
87
59
91
70
86
97
97
97
96
94
84

Low Clouds (% Sky Obscured)

89
54
53
51
60
50
61
66
85
89
86
81
80
85
50
91
70
86
95
94
90
92
93
84

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
4
3
15
30
27
15
4
3

High Clouds (% Sky Obscured)

0
3
71
57
61
67
44
38
0
0
0
0
0
2
2
3
2
0
0
0
1
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 (%)

-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-

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

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

3
2
2
2
3
3
4
4
4
3
2
2
2
2
3
4
3
4
3
3
4
4
4
3

Relative Humidity (%)

67
60
58
58
60
62
66
68
73
64
61
62
65
67
73
78
75
75
73
74
78
78
77
74

Pressure (mb)

1031
1031
1030
1030
1029
1029
1029
1029
1029
1029
1029
1029
1029
1028
1028
1028
1027
1027
1027
1026
1026
1026
1026
1026

Ozone (du)

308
308
308
308
308
310
310
309
307
308
307
307
308
306
305
306
308
308
307
305
304
304
305
307

Thursday 5

Waning Crescent 14%

03:51

14:43

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
06 Bad
07 Bad
08 Bad

Sun - Rise: 07:05, Set: 16:25, Transit: 11:44. Moon - Rise: 03:51, Set: 14:43. Civil Dark: 17:01 - 06:29. Nautical Dark: 17:41 - 05:48. Astro Dark: 18:20 - 05:09

Total Clouds (% Sky Obscured)

97
96
100
98
96
95
92
65
65
73
78
70
66
77
76
70
72
91
100
100
99
99
100
98

Low Clouds (% Sky Obscured)

97
96
100
98
96
95
92
65
65
73
78
70
62
71
76
70
71
71
83
100
88
80
79
86

Medium Clouds (% Sky Obscured)

4
0
0
0
4
1
0
3
4
20
8
7
14
15
13
14
14
58
95
96
99
93
92
88

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
4
0
31
66
89
76
15
28
4
96
68

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 (%)

-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-

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 (%)

2
0
4
3
0
0
0
0
0
0
0
0
0
0
0
0
1
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
13
13
12
12
12
10
10
8
7
7
6
6
5
5
5
5
5
5
5
5
5
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
69
67
66
65
65
67
74
82
87
85
87
90
90
91
90
91
91
93
91
90
91
91
88

Pressure (mb)

1027
1026
1026
1026
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1024
1024
1024
1024
1024
1024
1025

Ozone (du)

309
310
309
306
305
305
306
305
303
301
301
299
297
296
296
297
297
298
298
298
298
297
297
297

Friday 6

Waning Crescent 9%

05:08

14:55

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
06 Bad
07 Bad
08 Bad

Sun - Rise: 07:06, Set: 16:23, Transit: 11:44. Moon - Rise: 05:08, Set: 14:55. Civil Dark: 16:59 - 06:30. Nautical Dark: 17:40 - 05:50. Astro Dark: 18:19 - 05:11

Total Clouds (% Sky Obscured)

95
96
99
100
100
100
98
98
99
99
99
96
95
94
94
91
84
89
100
96
99
100
100
99

Low Clouds (% Sky Obscured)

86
91
83
86
83
64
58
47
50
52
58
55
51
46
50
55
56
73
80
80
80
75
76
81

Medium Clouds (% Sky Obscured)

93
94
90
28
21
23
81
86
95
97
97
89
63
43
88
86
79
60
80
38
60
77
85
77

High Clouds (% Sky Obscured)

44
60
36
54
99
100
62
55
92
55
13
3
59
65
65
55
55
19
27
21
33
45
45
7

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 (%)

-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-

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
2
4
12
17
9
1
0
0
0
0
0
0
0
0
0
0
0
1
1
1
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
4
3
4
5
5
4
4
4
3
3
4
4
4
3
3
3
4
4
4
4
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
81
81
77
76
76
78
84
88
87
88
88
90
90
91
91
91
93
91
91
91
91
91
90

Pressure (mb)

1025
1025
1025
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1023
1023
1023
1023
1023
1023
1023

Ozone (du)

297
296
297
296
295
294
294
293
293
293
293
293
293
294
293
293
292
292
292
293
294
295
297
298

Saturday 7

Waning Crescent 4%

06:25

15:08

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
06 Bad
07 Bad
08 Bad

Sun - Rise: 07:08, Set: 16:22, Transit: 11:44. Moon - Rise: 06:25, Set: 15:08. Civil Dark: 16:58 - 06:32. Nautical Dark: 17:38 - 05:52. Astro Dark: 18:17 - 05:12

Total Clouds (% Sky Obscured)

96
92
88
91
90
92
93
92
91
92
92
93
85
87
90
93
96
100
97
95
92
90
88
86

Low Clouds (% Sky Obscured)

76
67
63
63
68
69
62
54
51
54
54
51
45
51
71
75
83
89
86
81
88
79
67
63

Medium Clouds (% Sky Obscured)

79
75
65
58
46
54
63
70
77
76
79
83
62
61
89
65
44
54
91
83
75
73
69
69

High Clouds (% Sky Obscured)

22
23
38
65
58
36
41
35
40
35
24
22
22
25
30
17
8
30
30
25
26
18
30
30

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 (%)

-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-

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
0
0
0
0
0
0
0
1
2
3
4
6
6
17
20
3
7
9
4
6
9
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
4
5
5
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

4
4
4
4
4
4
5
5
6
5
6
5
5
5
5
5
5
5
5
5
6
5
5
5

Relative Humidity (%)

83
79
77
72
70
70
73
80
85
88
90
90
91
91
90
88
88
90
91
91
93
91
91
90

Pressure (mb)

1023
1023
1023
1022
1022
1021
1021
1021
1021
1021
1021
1021
1020
1020
1020
1020
1019
1019
1019
1018
1018
1018
1018
1018

Ozone (du)

299
298
298
300
300
297
294
294
295
296
296
296
295
294
293
294
294
293
292
292
291
290
290
290

Sunday 8

Waning Crescent 1%

07:42

15:24

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

Sun - Rise: 07:10, Set: 16:20, Transit: 11:44. Moon - Rise: 07:42, Set: 15:24. Civil Dark: 16:56 - 06:34. Nautical Dark: 17:37 - 05:53. Astro Dark: 18:16 - 05:14

Total Clouds (% Sky Obscured)

89
92
92
89
83
50
57
63
63
60
52
44
42
32
35
35
35
44
50
57
63
67
77
81

Low Clouds (% Sky Obscured)

58
89
87
87
81
50
54
56
49
47
44
40
40
31
31
35
35
44
50
56
62
62
52
43

Medium Clouds (% Sky Obscured)

68
27
24
12
8
3
4
5
3
2
1
0
1
1
2
2
1
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

30
2
0
1
0
0
0
0
0
0
0
0
0
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 (%)

-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-

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 (%)

2
4
2
1
4
4
14
1
3
0
0
7
1
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
5
5
6
6
6
5
4
4
3
3
4
4
4
4
4
4
4
4
5
5
6
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
84
82
78
78
78
73
77
79
78
79
84
86
88
91
91
89
91
89
89
89
89
89
86

Pressure (mb)

1018
1018
1018
1018
1018
1018
1017
1017
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1017
1017
1017
1017
1017
1018

Ozone (du)

291
293
295
296
297
299
298
297
296
295
292
287
284
283
282
283
281
279
276
276
275
275
275
275

Monday 9

New Moon 0%

08:56

15:44

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

Sun - Rise: 07:12, Set: 16:19, Transit: 11:44. Moon - Rise: 08:56, Set: 15:44. Civil Dark: 16:55 - 06:35. Nautical Dark: 17:35 - 05:55. Astro Dark: 18:15 - 05:15

Total Clouds (% Sky Obscured)

73
77
77
81
76
72
69
66
64
54
40
32
34
35
38
57
63
74
70
65
69
60
56
52

Low Clouds (% Sky Obscured)

31
20
15
22
34
46
39
32
27
29
26
24
27
31
36
40
42
45
34
22
12
24
36
48

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
0
0
0
0
0
0
0
0
0
0
0
0
3
8
16
30
42
64
46
28
10

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 (%)

-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-

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
1
0
0
4
3
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

3
3
2
3
8
8
8
8
9
9
5
6
6
5
5
5
5
4
4
4
4
4
3
3

Dew Point (°C)

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

Relative Humidity (%)

86
82
79
77
77
77
77
82
87
90
91
94
94
93
94
94
94
94
94
94
94
96
91
88

Pressure (mb)

1018
1018
1017
1017
1017
1017
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1015
1015
1015
1014
1014
1014
1014
1014

Ozone (du)

276
276
277
278
274
271
267
265
263
261
260
259
259
258
257
255
256
257
258
258
258
258
259
260

Tuesday 10

Waxing Crescent 2%

08:56

16:12

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

Sun - Rise: 07:13, Set: 16:17, Transit: 11:44. Moon - Rise: 08:56, Set: 16:12. Civil Dark: 16:53 - 06:37. Nautical Dark: 17:34 - 05:56. Astro Dark: 18:13 - 05:17

Total Clouds (% Sky Obscured)

58
60
60
53
49
46
38
30
23
43
61
76
60
39
24
29
35
39
42
42
46

Low Clouds (% Sky Obscured)

44
38
26
33
34
37
27
18
10
25
45
63
53
39
24
29
35
39
42
42
46

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

High Clouds (% Sky Obscured)

26
39
45
23
10
0
0
0
0
0
0
0
0
0
0
2
3
4
3
2
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

Fog (%)

-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-

Precipitation Type

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

Precipitation Probability (%)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

4
4
4
4
4
4
4
5
4
4
4
4
4
4
4
4
4
4
4
4
4

Relative Humidity (%)

85
77
70
63
65
66
67
73
77
81
81
82
84
85
86
90
90
90
91
91
90

Pressure (mb)

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

Ozone (du)

262
262
263
263
263
262
262
261
261
260
259
258
256
256
255
255
255
254
254
252
251

Forecast for Welwyn Garden City, Hertfordshire, United Kingdom (51.80,-0.21)

Generated: 04/11/26 09:30:29. Forecast: 04/11/26 to 10/11/26. Timezone: UTC+0.00