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, 20-Aug-2026 06:00 pm
 
Tonight

Fog late
Fog late
Friday

Fog a.m.
Fog a.m.
Friday
night
Partly Cloudy
Partly Cloudy
Saturday

Partly Cloudy
Partly Cloudy
Saturday
night
Partly Cloudy
Partly Cloudy
Sunday

Sunny
Sunny
Sunday
night
Partly Cloudy
Partly Cloudy
Monday

Mostly Cloudy
Mostly Cloudy
Monday
night
Mostly Cloudy
Mostly Cloudy
Tuesday

Mostly Cloudy
Mostly Cloudy
Tuesday
night
Cloudy
Cloudy
Wednesday

Thunder storm
Thunder storm
Wednesday
night
Thunder storm
Thunder storm
Thursday

Thunder storm
Thunder storm
Thursday
night
Thunder storm
Thunder storm
Friday

Fog a.m.
Fog a.m.
Friday
night
Thunder storm
Thunder storm
<2 mm. <2 mm. <2 mm. <2 mm. 7 mm. 15 mm. <2 mm. <2 mm. <2 mm. 10 mm.
Low: 12° High: 20° Low: 9° High: 22° Low: 10° High: 24° Low: 11° High: 24° Low: 18° High: 25° Low: 18° High: 25° Low: 17° High: 23° Low: 15° High: 21° Low: 14°
                                 
WNW→N
7-19
mph
Fresh breeze
N
8-18
mph
Moderate breeze
N
5
mph
Light breeze
N
6-15
mph
Moderate breeze
WSW→NNE
3
mph
Light air
NNE→SSE
4
mph
Light breeze
S→ENE
3
mph
Light air
ENE
9-21→14-22
mph
Fresh breeze
ESE
12-19
mph
Fresh breeze
ESE
9-15→5
mph
Moderate breeze
SSE
6
mph
Light breeze
SSW
9-20
mph
Fresh breeze
SSW
6
mph
Light breeze
SSW
10-20
mph
Fresh breeze
SSW→WNW
5-16
mph
Moderate breeze
W→SW
9-20→14-22
mph
Fresh breeze
S→N
6-17→2
mph
Moderate breeze
UV: 4
 Medium 
UV: 5
 Medium 
UV: 4
 Medium 
UV: 4
 Medium 

 

Tonight
 
Partly cloudy. Patchy light fog after midnight. A slight chance of rain. Low 12°. Wind west-northwest around 7 mph, gusting to 19 mph, in the evening, becoming north after midnight. Chance of precipitation less than 20 percent. Precipitation mostly less than 2 mm.
Friday
 
Partly cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. Patchy light fog in the morning. A slight chance of rain in the afternoon. Precipitation showery or intermittent. High 20°. Wind north around 8 mph, gusting to 18 mph. Chance of precipitation less than 20 percent. Precipitation mostly less than 2 mm.
Friday night
 
Partly cloudy in the evening, becoming clear after midnight. Cool. Low 9°. Wind north around 5 mph.
Saturday
 
Sunny in the morning, becoming partly cloudy in the afternoon. High 22°. UV index up to 4. Wind north around 6 mph, gusting to 15 mph.
Saturday night
 
Partly cloudy in the evening, becoming partly to mostly cloudy after midnight. Low 10°. Wind west-southwest around 3 mph in the evening, becoming north-northeast after midnight.
Sunday
 
Sunny. High 24°. UV index up to 5. Wind north-northeast around 4 mph in the morning, becoming south-southeast in the afternoon.
Sunday night
 
Fair in the evening, becoming partly cloudy after midnight. Low 11°. Wind south around 3 mph in the evening, becoming east-northeast after midnight.
Monday
 
Partly to mostly cloudy. Breezy. High 24°. UV index up to 4. Wind east-northeast around 9 mph, gusting to 21 mph, in the morning, becoming 14 mph, gusting to 22 mph, in the afternoon.
Monday night
 
Partly to mostly cloudy in the evening, becoming cloudy after midnight. Breezy. Low 18°. Wind east-southeast around 12 mph, gusting to 19 mph.
Tuesday
 
Cloudy in the morning, becoming partly to mostly cloudy in the afternoon. A slight chance of rain. Warm. High 25°. Wind east-southeast around 9 mph, gusting to 15 mph, in the morning, becoming 5 mph in the afternoon. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Tuesday night
 
Cloudy. A chance of rain. Precipitation showery or intermittent. Low 18°. Wind south-southeast around 6 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Wednesday
 
Dense overcast in the morning, becoming mostly cloudy to cloudy in the afternoon. A slight chance of rain in the morning, then a chance of rain in the afternoon. Scattered thundershowers possible. Warm. High 25°. UV index up to 4. Wind south-southwest around 9 mph, gusting to 20 mph. Chance of precipitation 60 percent. Precipitation mostly between 5 and 10 mm.
Wednesday night
 
Dense overcast in the evening, becoming cloudy after midnight. Light to moderate fog. Rain likely in the evening, then a slight chance of rain after midnight. Scattered thundershowers possible. Low 17°. Wind south-southwest around 6 mph. Chance of precipitation 80 percent. Precipitation mostly between 10 and 20 mm.
Thursday
 
Partly cloudy. Patchy light fog in the morning. A slight chance of rain. Scattered thundershowers possible. High 23°. Wind south-southwest around 10 mph, gusting to 20 mph. Chance of precipitation less than 20 percent. Precipitation mostly less than 2 mm.
Thursday night
 
Cloudy in the evening, becoming mostly cloudy to cloudy after midnight. Light to moderate fog after midnight. A slight chance of rain. Scattered thundershowers possible. Low 15°. Wind south-southwest around 5 mph, gusting to 16 mph, in the evening, becoming west-northwest after midnight. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Friday
 
Partly cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. Light to moderate fog in the morning. A slight chance of rain. Precipitation showery or intermittent. Breezy. High 21°. Wind west around 9 mph, gusting to 20 mph, in the morning, becoming southwest around 14 mph, gusting to 22 mph, in the afternoon. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Friday night
 
Dense overcast in the evening, becoming cloudy after midnight. Patchy light fog. Rain likely in the evening, then a chance of rain after midnight. Scattered thundershowers possible. Low 14°. Wind south around 6 mph, gusting to 17 mph, in the evening, becoming north around 2 mph after midnight. Chance of precipitation 80 percent. Precipitation mostly around 10 mm.

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.