Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 4

Waning Gibbous 95%

19:14

09:04

21 Bad
22 Bad
23 Bad
00 Good
01 Good
02 Good
03 OK
04 Good
05 OK
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

Sun - Rise: 07:13, Set: 16:27, Transit: 11:50. Moon - Rise: 19:14, Set: 09:04. Civil Dark: 16:58 - 06:41. Nautical Dark: 17:33 - 06:06. Astro Dark: 18:07 - 05:32

Total Clouds (% Sky Obscured)

84
80
54
10
3
8
34
8
45
68
60
60
64
82
98
100
97
100
98
100
99
100
100
100

Low Clouds (% Sky Obscured)

78
51
16
10
1
2
0
0
0
0
0
0
2
0
5
4
3
3
5
69
76
75
89
85

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
2
31
60
51
52
26
76
98
89
95
97
98
100
95
100
99
98

High Clouds (% Sky Obscured)

0
0
0
0
0
2
34
8
36
54
28
2
30
20
23
100
46
99
66
52
35
55
89
96

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
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
8
22
9
9

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
8
8
10
9
9
8
8
8
7
7
6
5
3
3
2
2
3
5
5
6
7
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-6
-8
-11
-10
-9
-10
-10
-12
-11
-12
-13
-12
-11
-11
-9
-8
-8
-7
-8
-7
-8
-8
-9
-8

Dew Point (°C)

-8
-9
-11
-11
-11
-12
-12
-13
-13
-14
-14
-14
-15
-15
-15
-15
-15
-15
-15
-14
-13
-12
-12
-10

Relative Humidity (%)

69
69
63
62
63
64
66
64
64
62
59
58
53
49
47
45
43
42
42
44
46
50
55
60

Pressure (mb)

1018
1019
1019
1020
1020
1021
1022
1022
1022
1023
1023
1024
1024
1024
1024
1023
1022
1022
1022
1022
1022
1022
1021
1021

Ozone (du)

347
344
340
335
331
328
328
328
327
323
323
325
324
323
328
327
328
329
329
336
337
339
343
346

Monday 5

Waning Gibbous 89%

20:28

09:31

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
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad

Sun - Rise: 07:13, Set: 16:28, Transit: 11:50. Moon - Rise: 20:28, Set: 09:31. Civil Dark: 16:59 - 06:41. Nautical Dark: 17:34 - 06:06. Astro Dark: 18:08 - 05:32

Total Clouds (% Sky Obscured)

99
100
99
100
100
98
100
99
98
93
99
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

91
91
91
89
84
74
72
80
95
70
90
86
86
79
66
89
85
92
92
93
100
100
100
100

Medium Clouds (% Sky Obscured)

98
100
96
100
55
50
50
50
20
41
66
4
8
18
82
100
100
100
100
100
98
100
100
92

High Clouds (% Sky Obscured)

31
11
5
26
13
13
38
27
33
56
70
100
100
100
100
100
100
100
96
98
23
100
0
8

ISS Passover

Visibility (miles)

9
0
0
0
0
0
0
0
7
8
1
1
2
5
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
Snow
Snow
Snow
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Sleet
Light Rain

Precipitation Probability (%)

42
67
70
66
54
36
28
4
4
1
0
0
0
0
7
1
7
2
0
0
6
19
51
69

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-8
-5
-4
-3
-2
-2
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-0
0
1
1
1
1
1
2

Relative Humidity (%)

69
87
92
94
94
96
96
96
98
98
98
98
94
92
94
94
94
94
94
96
94
96
96
98

Pressure (mb)

1021
1020
1020
1019
1018
1018
1018
1018
1017
1018
1018
1018
1018
1018
1018
1016
1016
1015
1014
1014
1014
1013
1012
1011

Ozone (du)

344
341
340
339
339
340
340
340
340
340
340
340
341
341
339
337
335
333
335
338
340
343
342
344

Tuesday 6

Waning Gibbous 81%

No Rise

09:54

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
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Good

Sun - Rise: 07:13, Set: 16:29, Transit: 11:51. Moon - Rise: No Rise, Set: 09:54. Civil Dark: 17:00 - 06:41. Nautical Dark: 17:35 - 06:06. Astro Dark: 18:09 - 05:32

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
96
92
100
100
100
100
89
77
66
54
62
60
48
8

Low Clouds (% Sky Obscured)

100
100
100
100
100
98
100
100
100
100
89
75
72
60
43
23
28
38
39
30
21
20
22
2

Medium Clouds (% Sky Obscured)

100
92
93
99
13
24
99
95
99
90
4
3
10
10
20
80
70
16
0
0
62
1
2
0

High Clouds (% Sky Obscured)

8
5
5
9
5
5
10
10
0
5
4
0
77
95
95
100
59
25
0
0
7
1
0
0

ISS Passover

Visibility (miles)

8
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
9
9
9
9
9
9

Fog (%)

0
0
1
10
20
49
56
52
31
76
27
19
13
7
2
0
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

64
46
73
47
81
86
49
32
24
15
13
3
2
13
23
44
49
15
4
0
0
0
0
0

Precipitation Amount (mm)

0.3
0
0.6
0
0.3
0.6
0
0
0
0
0
0
0
0
0
0
0.3
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

4
3
5
5
4
4
4
4
4
4
6
5
6
6
7
8
8
9
10
11
12
11
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
100
98
100
100
100
100
100
100
100
100
100
98
98
98
98
98
96
93
88
79
80
80
80

Pressure (mb)

1010
1009
1008
1006
1005
1004
1003
1003
1002
1002
1003
1003
1004
1004
1004
1004
1004
1005
1006
1007
1008
1009
1011
1011

Ozone (du)

346
348
349
348
348
348
344
345
348
351
353
354
359
366
373
372
370
367
366
365
364
366
366
362

Wednesday 7

Waning Gibbous 72%

21:37

10:14

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

Sun - Rise: 07:12, Set: 16:30, Transit: 11:51. Moon - Rise: 21:37, Set: 10:14. Civil Dark: 17:01 - 06:41. Nautical Dark: 17:36 - 06:06. Astro Dark: 18:10 - 05:32

Total Clouds (% Sky Obscured)

2
2
1
2
2
2
3
1
2
1
12
21
29
19
12
2
9
13
28
35
46
43
37
34

Low Clouds (% Sky Obscured)

1
1
1
1
1
1
1
1
2
1
2
2
2
0
3
2
7
12
14
22
32
40
28
14

Medium Clouds (% Sky Obscured)

0
0
0
0
2
2
3
1
2
0
2
4
4
3
1
0
0
0
0
0
0
0
2
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
11
23

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
81
83
84
84
84
86
88
88
88
88
88
81
79
76
73
74
75
78
83
89
91
93
93

Pressure (mb)

1012
1013
1013
1014
1015
1015
1016
1017
1017
1018
1019
1020
1021
1022
1022
1022
1021
1022
1022
1023
1023
1024
1024
1025

Ozone (du)

361
362
364
361
359
359
360
358
356
350
344
342
340
337
334
331
330
329
330
329
332
337
336
342

Thursday 8

Waning Gibbous 62%

22:43

10:33

21 OK
22 Bad
23 OK
00 OK
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
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad

Sun - Rise: 07:12, Set: 16:31, Transit: 11:51. Moon - Rise: 22:43, Set: 10:33. Civil Dark: 17:02 - 06:41. Nautical Dark: 17:37 - 06:06. Astro Dark: 18:11 - 05:32

Total Clouds (% Sky Obscured)

28
39
36
38
62
81
100
100
100
100
98
97
95
97
98
99
99
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
11
23
29
24
29
31
37
40
41
43
45
45
56
67
78
84
90

Medium Clouds (% Sky Obscured)

0
0
0
0
6
47
38
53
80
81
80
78
77
80
86
91
94
97
100
98
96
95
97
98

High Clouds (% Sky Obscured)

28
24
19
10
40
68
100
100
100
100
97
93
80
86
92
92
94
95
92
93
96
100
99
99

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
5
3
5
7
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
Light Rain
Light Rain
Light Rain
Very Light Rain
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
1
10
13
15
46
64
88
95
95
78
64
53

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.6
0.8
0.6
0.4
0.3
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
93
93
93
91
91
93
93
91
93
91
89
86
85
85
85
87
88
93
96
96
96
96
96

Pressure (mb)

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

Ozone (du)

346
343
339
337
335
332
327
321
319
314
311
307
303
299
296
294
291
289
287
285
284
284
283
283

Friday 9

Waning Gibbous 52%

23:47

10:52

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
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad

Sun - Rise: 07:12, Set: 16:32, Transit: 11:52. Moon - Rise: 23:47, Set: 10:52. Civil Dark: 17:03 - 06:41. Nautical Dark: 17:38 - 06:06. Astro Dark: 18:12 - 05:32

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)

97
96
95
94
93
91
89
87
84
82
85
88
92
89
88
86
87
89
91
92
94
95
94
96

Medium Clouds (% Sky Obscured)

98
98
99
99
99
99
99
85
75
71
90
98
100
100
100
100
100
100
100
93
87
80
86
93

High Clouds (% Sky Obscured)

98
91
84
77
80
86
93
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
6
4
1
0
0
0
0
0
0
0
0
0
3
6
9
7
4
1
4

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

Precipitation Probability (%)

42
43
44
40
46
53
47
44
51
40
58
82
95
95
95
95
95
95
95
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0.2
0.2
0
0.3
0
0.2
0.5
0.8
1.1
1.5
1.4
1.4
1.2
1.1
1.1
1
0.9
0.9
0.9

Wind Speed/Direction (mph)

12
13
13
13
12
12
12
11
11
10
10
10
10
10
11
12
13
13
14
16
16
16
17
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
95
95
96
96
96
96
98
98
98
98
98
98
98
96
96
96
96
96
95
96
96
96
81

Pressure (mb)

1017
1017
1016
1016
1015
1015
1014
1014
1014
1013
1013
1013
1013
1012
1011
1010
1009
1008
1007
1006
1005
1004
1003
1003

Ozone (du)

282
282
279
276
274
273
273
273
272
271
270
269
268
267
267
266
266
265
265
264
263
261
260
262

Saturday 10

Third Quarter 42%

00:51

11:13

21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 OK
07 Good
08 Good
09 Good
10 OK
11 OK
12 OK

Sun - Rise: 07:12, Set: 16:33, Transit: 11:52. Moon - Rise: 00:51, Set: 11:13. Civil Dark: 17:04 - 06:40. Nautical Dark: 17:39 - 06:06. Astro Dark: 18:13 - 05:32

Total Clouds (% Sky Obscured)

100
90
79
71
47
34
20
15
11
11
9
9
6
17
28
40

Low Clouds (% Sky Obscured)

96
78
49
16
10
7
4
4
8
2
2
1
2
17
28
40

Medium Clouds (% Sky Obscured)

100
67
34
2
15
25
20
15
11
11
7
2
0
0
0
0

High Clouds (% Sky Obscured)

100
90
79
71
47
34
20
15
11
11
9
9
0
0
0
0

ISS Passover

Visibility (miles)

7
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

Precipitation Type

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

Precipitation Probability (%)

95
95
95
92
91
91
85
62
36
3
2
0
0
0
1
1

Precipitation Amount (mm)

1
0.8
0.7
0.5
0.5
0.6
0.6
0.3
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

16
17
17
16
15
15
14
15
15
14
14
14
14
15
15
15

Chance of Frost

Temperature (°C)

12
12
10
9
8
7
6
5
5
4
3
4
4
4
5
5

Feels Like (°C)

9
9
9
9
9
1
1
1
1
-0
-0
-2
-2
-2
-1
-1

Dew Point (°C)

7
3
2
2
1
0
-1
-1
-2
-3
-3
-3
-3
-3
-4
-4

Relative Humidity (%)

67
55
56
59
61
62
61
64
63
62
63
62
60
59
56
54

Pressure (mb)

1002
1002
1002
1003
1003
1004
1004
1005
1006
1006
1006
1007
1007
1007
1007
1006

Ozone (du)

264
266
269
272
276
278
280
283
288
292
297
310
322
335
338
341

Forecast for Brookline, Norfolk, United States of America (42.33,-71.12)

Generated: 04/01/26 20:53:00. Forecast: 04/01/26 to 10/01/26. Timezone: UTC-5.00