Winter Sky by David Packman  
Online since February 2006  
  

 
 
 
 WXSim Local Weather Forecast
   
This local weather forecast was created using WXSim weather simulator software, and is normally updated every hour at 15 minutes past the hour. It is provided to give a guide as to what weather conditions may be experienced locally, and is most accurate for the first 48 hours.
WXSIM Forecast for: Winchester
Issued by: winchesterweather.org.uk
Updated: Thursday, 13-Aug-2026 03:00 am
 
Rest of
tonight
Clear
Clear		 Thursday

Sunny
Sunny		 Thursday
night
Mostly Clear
Mostly Clear		 Friday

Partly Cloudy
Partly Cloudy		 Friday
night
Partly Cloudy
Partly Cloudy		 Saturday

Mostly Cloudy
Mostly Cloudy		 Saturday
night
Partly Cloudy
Partly Cloudy		 Sunday

Mostly Cloudy
Mostly Cloudy		 Sunday
night
Mostly Cloudy
Mostly Cloudy		 Monday

Mostly Cloudy
Mostly Cloudy		 Monday
night
Overcast
Overcast		 Tuesday

Partly Cloudy
Partly Cloudy		 Tuesday
night
Mostly Cloudy
Mostly Cloudy		 Wednesday

Sunny
Sunny		 Wednesday
night
Fog late
Fog late		 Thursday

Fog a.m.
Fog a.m.		 Thursday
night
Mostly Cloudy
Mostly Cloudy		 Friday

Mostly Sunny
Mostly Sunny
<2 mm. <2 mm. <2 mm. <2 mm.
Low: 13° High: 32° Low: 15° High: 30° Low: 17° High: 27° Low: 14° High: 26° Low: 14° High: 26° Low: 17° High: 25° Low: 15° High: 24° Low: 12° High: 23° Low: 13° High: 24°
                                   
ENE
2
mph
Light air		 ESE→SSE
5→11-18
mph
Moderate breeze		 SW→WNW
5
mph
Light breeze		 WNW
5→9-17
mph
Moderate breeze		 WNW→N
10-16
mph
Moderate breeze		 N
10-18
mph
Moderate breeze		 N
10-16→6
mph
Moderate breeze		 N
5
mph
Light breeze		 NW→NNE
3
mph
Light air		 SSW→WSW
4→11-19
mph
Fresh breeze		 W
8-18
mph
Moderate breeze		 W
10-17
mph
Moderate breeze		 W
11-18
mph
Moderate breeze		 WNW
12-21
mph
Fresh breeze		 NNW
7-18
mph
Moderate breeze		 NNW
9-18
mph
Moderate breeze		 N
7-18
mph
Moderate breeze		 NNE→E
8-17
mph
Moderate breeze
UV: 6
 High 		 UV: 6
 High 		 UV: 5
 Medium 		 UV: 5
 Medium 		 UV: 5
 Medium 		 UV: 5
 Medium 		 UV: 6
 High 		 UV: 4
 Medium 		 UV: 5
 Medium 

 

Rest of tonight
 
 Clear. Low 13°. Wind east-northeast around 2 mph.
Thursday
 
 Sunny. Exceptionally hot. High 32°. UV index up to 6. Wind east-southeast around 5 mph in the morning, becoming south-southeast around 11 mph, gusting to 18 mph, in the afternoon.
Thursday night
 
 Fair in the evening, becoming mostly clear after midnight. Low 15°. Wind southwest around 5 mph in the evening, becoming west-northwest after midnight.
Friday
 
 Partly to mostly sunny in the morning, becoming partly cloudy in the afternoon. Unusually hot. High 30°. UV index up to 6. Wind west-northwest around 5 mph in the morning, becoming 9 mph, gusting to 17 mph, in the afternoon.
Friday night
 
 Fair to partly cloudy in the evening, becoming partly to mostly cloudy after midnight. Low 17°. Wind west-northwest around 10 mph, gusting to 16 mph, in the evening, becoming north after midnight.
Saturday
 
 Mostly cloudy in the morning, becoming mostly sunny in the afternoon. Warm. High 27°. UV index up to 5. Wind north around 10 mph, gusting to 18 mph.
Saturday night
 
 Clear in the evening, becoming partly cloudy after midnight. Low 14°. Wind north around 10 mph, gusting to 16 mph, in the evening, becoming 6 mph after midnight.
Sunday
 
 Mostly cloudy in the morning, becoming sunny in the afternoon. Warm. High 26°. UV index up to 5. Wind north around 5 mph.
Sunday night
 
 Fair in the evening, becoming partly to mostly cloudy after midnight. Low 14°. Wind northwest around 3 mph in the evening, becoming north-northeast after midnight.
Monday
 
 Partly to mostly cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. Warm. High 26°. UV index up to 5. Wind south-southwest around 4 mph in the morning, becoming west-southwest around 11 mph, gusting to 19 mph, in the afternoon.
Monday night
 
 Dense overcast. A slight chance of rain. Low 17°. Wind west around 8 mph, gusting to 18 mph. Chance of precipitation less than 20 percent. Precipitation mostly less than 2 mm.
Tuesday
 
 Mostly cloudy to cloudy in the morning, becoming partly cloudy in the afternoon. A slight chance of rain. Warm. High 25°. UV index up to 5. Wind west around 10 mph, gusting to 17 mph. Chance of precipitation less than 20 percent. Precipitation mostly less than 2 mm.
Tuesday night
 
 Mostly cloudy in the evening, becoming partly to mostly cloudy after midnight. A slight chance of rain. Breezy. Low 15°. Wind west around 11 mph, gusting to 18 mph. Chance of precipitation less than 20 percent. Precipitation mostly less than 2 mm.
Wednesday
 
 Sunny. Breezy and warm. High 24°. UV index up to 6. Wind west-northwest around 12 mph, gusting to 21 mph.
Wednesday night
 
 Partly to mostly cloudy in the evening, becoming clear after midnight. Patchy light fog after midnight. Low 12°. Wind north-northwest around 7 mph, gusting to 18 mph.
Thursday
 
 Mostly sunny in the morning, becoming partly cloudy in the afternoon. Patchy light fog in the morning. High 23°. UV index up to 4. Wind north-northwest around 9 mph, gusting to 18 mph.
Thursday night
 
 Partly to mostly cloudy in the evening, becoming mostly cloudy to cloudy after midnight. A slight chance of rain after midnight. Low 13°. Wind north around 7 mph, gusting to 18 mph. Chance of precipitation less than 20 percent. Precipitation mostly less than 2 mm.
Friday
 
 Sunny in the morning, becoming partly to mostly sunny in the afternoon. High 24°. UV index up to 5. Wind north-northeast around 8 mph, gusting to 17 mph, in the morning, becoming east in the afternoon.
Friday night
 
 Partly to mostly cloudy. Low 14°. Wind east-southeast around 9 mph.

WXSIM forecast formatting script by Saratoga-Weather.org.

 
 
 
 
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Never base important decisions or events on data from this private weather station, which is offered as a general guide to local conditions only. Thankyou.