Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 9

New Moon 0%

08:56

15:44

11 Bad
12 Bad
13 Bad
14 Bad
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

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)

76
71
66
61
45
60
59
59
66
70
80
93
93
82
91
96
93
100
100
94
99
98
99
100

Low Clouds (% Sky Obscured)

45
47
54
58
42
56
55
49
51
52
60
60
61
60
60
59
71
80
82
59
59
59
49
53

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
22
26
28
91

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
3
3
26
54
87
63
16
54
59
41
100
100
76
95
57
73
86

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 (%)

98
37
1
1
0
0
0
0
0
0
0
0
1
2
2
2
3
8
20
40
53
56
99
31

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
7
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

7
7
7
7
7
6
6
5
5
4
4
3
2
3
3
2
2
2
2
2
2
2
3
4

Dew Point (°C)

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

Relative Humidity (%)

71
66
64
64
68
77
84
86
90
91
93
93
94
93
94
94
91
93
93
91
93
91
84
78

Pressure (mb)

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

Ozone (du)

255
252
250
246
244
241
237
238
241
243
248
248
247
246
245
244
245
246
246
248
251
253
255
256

Tuesday 10

Waxing Crescent 2%

10:04

16:12

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
09 Bad
10 Bad

Sun - Rise: 07:13, Set: 16:17, Transit: 11:44. Moon - Rise: 10:04, 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)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
96
100
100

Low Clouds (% Sky Obscured)

63
56
52
57
81
100
100
94
100
100
100
100
100
100
100
100
87
76
47
53
34
22
17
25

Medium Clouds (% Sky Obscured)

99
100
99
99
100
100
100
100
99
98
98
99
97
97
98
100
100
93
100
100
99
75
27
27

High Clouds (% Sky Obscured)

100
98
92
100
100
100
100
100
100
99
100
76
54
79
100
95
100
80
73
83
99
88
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
7
7
8
9
9
9
9
8
7
9
9
9
9
9
9
9
9

Fog (%)

20
6
4
2
0
0
1
2
3
2
2
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

7
12
30
30
35
57
79
86
87
79
70
60
60
66
64
54
26
24
27
32
39
42
36
36

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

10
11
11
11
11
11
10
10
10
10
9
10
9
9
9
9
9
9
9
10
10
9
9
10

Chance of Frost

Temperature (°C)

9
9
9
9
9
9
8
8
8
8
8
8
8
8
8
8
8
7
7
7
7
7
7
8

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

73
69
67
68
70
73
75
81
85
87
88
88
88
90
91
93
91
90
88
90
90
91
84
78

Pressure (mb)

1010
1010
1009
1008
1007
1007
1007
1007
1007
1006
1006
1006
1006
1006
1005
1005
1005
1005
1005
1005
1006
1006
1006
1007

Ozone (du)

254
251
249
250
250
250
251
250
246
246
247
247
248
247
245
243
241
239
240
239
240
242
243
243

Wednesday 11

Waxing Crescent 5%

11:01

16:50

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 OK
06 OK
07 OK
08 Bad
09 OK
10 Bad

Sun - Rise: 07:14, Set: 16:15, Transit: 11:44. Moon - Rise: 11:01, Set: 16:50. Civil Dark: 16:52 - 06:38. Nautical Dark: 17:33 - 05:57. Astro Dark: 18:12 - 05:17

Total Clouds (% Sky Obscured)

100
100
98
84
84
100
100
97
81
73
75
57
61
59
75
75
83
62
21
30
37
44
43
73

Low Clouds (% Sky Obscured)

28
30
32
35
40
47
43
43
48
39
57
50
51
47
55
50
65
56
20
27
35
44
43
67

Medium Clouds (% Sky Obscured)

57
76
85
29
22
19
22
28
35
35
32
35
33
23
21
15
9
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
100
85
10
7
48
46
21
24
27
1
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 (%)

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 (%)

31
28
27
27
20
11
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)

10
10
9
9
7
6
8
7
7
7
7
7
8
8
7
8
8
9
9
9
9
10
11
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

4
5
5
5
7
7
6
5
5
5
6
5
5
5
5
4
4
4
3
2
2
1
2
2

Dew Point (°C)

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

Relative Humidity (%)

74
70
69
68
70
77
68
70
71
75
74
79
88
91
93
93
93
90
91
89
91
88
83
83

Pressure (mb)

1007
1007
1006
1006
1006
1006
1006
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1008
1008
1008
1009
1009
1009

Ozone (du)

243
244
245
243
242
241
241
242
245
243
240
241
243
243
244
244
246
248
248
246
243
243
242
243

Thursday 12

Waxing Crescent 10%

11:01

17:39

11 Bad
12 OK
13 OK
14 OK
15 OK
16 OK
17 OK
18 Good
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 Good

Sun - Rise: 07:16, Set: 16:15, Transit: 11:44. Moon - Rise: 11:01, Set: 17:39. Civil Dark: 16:51 - 06:39. Nautical Dark: 17:32 - 05:58. Astro Dark: 18:11 - 05:19

Total Clouds (% Sky Obscured)

50
33
29
25
23
20
17
13
8
3
2
2
2
2
2
1
1
1
1
1
1
1
2
2

Low Clouds (% Sky Obscured)

50
33
29
25
23
20
17
13
8
2
2
2
2
2
2
1
1
1
1
1
1
1
2
2

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)

3
3
3
0
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 (%)

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

3
0
-1
-1
-0
1
1
1
1
1
1
0
-0
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1

Relative Humidity (%)

79
59
54
54
59
69
74
76
80
83
86
86
86
84
84
84
84
84
84
86
86
84
79
73

Pressure (mb)

1010
1010
1009
1010
1010
1010
1011
1012
1012
1013
1013
1014
1014
1014
1015
1015
1015
1016
1016
1017
1018
1018
1019
1019

Ozone (du)

241
240
242
243
244
244
244
244
244
246
251
256
257
258
260
261
262
261
260
260
262
263
264
266

Friday 13

Waxing Crescent 17%

11:45

18:40

11 Good
12 OK
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
03 Good
04 OK
05 OK
06 OK
07 OK
08 OK
09 OK
10 Bad

Sun - Rise: 07:18, Set: 16:13, Transit: 11:45. Moon - Rise: 11:45, Set: 18:40. Civil Dark: 16:50 - 06:41. Nautical Dark: 17:31 - 06:00. Astro Dark: 18:10 - 05:20

Total Clouds (% Sky Obscured)

6
19
3
3
3
4
2
2
2
2
0
0
0
2
4
7
8
9
10
16
23
31
46
60

Low Clouds (% Sky Obscured)

6
19
2
1
1
2
1
1
1
1
0
0
0
1
1
2
2
2
2
9
15
19
42
60

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
1
2
4
5
7
8
7
7
6
6
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 (%)

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)

9
9
9
8
7
6
5
5
4
4
4
3
3
3
3
3
3
3
3
3
3
4
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

69
67
66
66
71
80
86
88
89
89
89
89
89
89
89
89
88
88
88
88
84
81
79
76

Pressure (mb)

1020
1020
1020
1020
1020
1021
1021
1022
1022
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023

Ozone (du)

267
268
268
269
270
272
273
274
275
274
273
273
272
270
270
269
268
269
269
270
269
269
269
267

Saturday 14

Waxing Crescent 25%

12:18

19:48

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
09 Bad
10 Bad

Sun - Rise: 07:20, Set: 16:12, Transit: 11:45. Moon - Rise: 12:18, Set: 19:48. Civil Dark: 16:49 - 06:42. Nautical Dark: 17:30 - 06:01. Astro Dark: 18:09 - 05:22

Total Clouds (% Sky Obscured)

73
80
90
99
100
100
100
100
88
88
89
85
86
94
87
87
89
93
99
99
99
99
99
99

Low Clouds (% Sky Obscured)

73
74
51
29
21
12
3
1
1
0
6
14
22
28
32
36
41
35
32
27
27
30
30
26

Medium Clouds (% Sky Obscured)

0
0
0
0
3
8
13
25
30
40
27
16
6
8
4
5
5
5
10
33
54
72
73
74

High Clouds (% Sky Obscured)

8
25
43
74
85
85
76
63
44
27
30
28
30
41
51
60
77
89
99
96
94
91
90
90

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
Very Light Rain
Light Rain
Light Rain
Very Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
9
15
18
53
72
89
78
58

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

73
71
69
65
63
66
72
78
78
79
80
80
83
83
83
83
83
83
85
83
82
79
78
77

Pressure (mb)

1022
1022
1021
1020
1020
1019
1019
1019
1018
1018
1017
1016
1015
1015
1014
1013
1012
1011
1010
1008
1008
1007
1007
1006

Ozone (du)

265
264
264
264
264
264
264
264
265
266
267
266
266
265
265
265
265
264
264
264
265
267
269
272

Sunday 15

Waxing Crescent 33%

12:42

21:01

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: 07:21, Set: 16:10, Transit: 11:45. Moon - Rise: 12:42, Set: 21:01. Civil Dark: 16:47 - 06:44. Nautical Dark: 17:28 - 06:03. Astro Dark: 18:08 - 05:23

Total Clouds (% Sky Obscured)

99
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

19
29
35
43
60
77
92
89
88
88
88
88
88
92
96
100
96
93
89

Medium Clouds (% Sky Obscured)

71
81
92
99
88
77
68
54
42
30
61
81
99
93
85
78
75
71
67

High Clouds (% Sky Obscured)

88
90
94
98
80
63
41
39
40
40
54
73
81
88
95
100
78
50
20

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
6
3
0
3
6
9
9
9

Fog (%)

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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

18
21
25
25
44
48
46
74
90
95
95
95
95
95
95
74
67
63
59

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.4
0.5
0.7
0.8
1.1
1.5
1.1
0.7
0.4
0.3
0.3
0.3

Wind Speed/Direction (mph)

10
11
10
9
9
8
8
7
8
8
9
10
12
16
15
16
19
18
17

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

3
3
6
6
6
5
5
4
6
6
7
7
7
8
9
8
7
6
6

Dew Point (°C)

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

Relative Humidity (%)

76
73
76
80
82
87
91
96
98
98
96
98
98
98
96
95
95
91
91

Pressure (mb)

1006
1005
1005
1004
1004
1003
1002
1002
1001
1000
998
997
995
993
993
992
991
992
993

Ozone (du)

275
277
277
277
278
277
277
277
276
275
274
273
272
271
270
270
270
269
268

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

Generated: 09/11/26 11:05:20. Forecast: 09/11/26 to 15/11/26. Timezone: UTC+0.00