| WXSIM Forecast for:
Winchester Issued by: winchesterweather.org.uk |
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| Updated: Tuesday, 18-Aug-2026 02:00 am | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Rest of tonight |
Cloudy. A slight chance of rain. Low 17°. Wind southwest around 7 mph. Chance of precipitation less than 20 percent. Precipitation mostly less than 2 mm. |
| Tuesday |
Cloudy in the morning, becoming mostly cloudy in the afternoon. A slight chance of rain. Breezy and warm. High 24°. UV index up to 5. Wind west around 11 mph, gusting to 21 mph, in the morning, becoming 14 mph, gusting to 23 mph, in the afternoon. Chance of precipitation less than 20 percent. Precipitation mostly less than 2 mm. |
| Tuesday night |
Mostly cloudy to cloudy in the evening, becoming dense overcast after midnight. A slight chance of rain after midnight. Low 16°. Wind west-northwest around 11 mph, gusting to 21 mph, in the evening, becoming 7 mph after midnight. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm. |
| Wednesday |
Mostly cloudy to cloudy. A slight chance of rain. Precipitation showery or intermittent. High 21°. Wind west-southwest around 9 mph, gusting to 18 mph. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm. |
| Wednesday night |
Mostly clear in the evening, becoming fair after midnight. Patchy light fog after midnight. A slight chance of rain. Low 11°. Wind southwest around 7 mph, gusting to 16 mph. Chance of precipitation less than 20 percent. Precipitation mostly less than 2 mm. |
| Thursday |
Partly to mostly sunny in the morning, becoming mostly cloudy to cloudy in the afternoon. Patchy light fog in the morning. A slight chance of rain. Precipitation showery or intermittent. High 21°. Wind southwest around 10 mph, gusting to 20 mph. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm. |
| Thursday night |
Partly cloudy in the evening, becoming cloudy after midnight. A slight chance of rain. Low 13°. Wind west around 6 mph, gusting to 16 mph, in the evening, becoming north after midnight. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm. |
| Friday |
Cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. A chance of rain. High 20°. Wind north around 9 mph, gusting to 17 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm. |
| Friday night |
Mostly cloudy in the evening, becoming partly cloudy after midnight. A slight chance of rain. Low 11°. Wind northeast around 7 mph, gusting to 15 mph. Chance of precipitation less than 20 percent. Precipitation mostly less than 2 mm. |
| Saturday |
Sunny in the morning, becoming partly cloudy in the afternoon. High 22°. UV index up to 4. Wind northeast around 9 mph, gusting to 19 mph. |
| Saturday night |
Fair to partly cloudy in the evening, becoming clear after midnight. Cool. Low 9°. Wind north around 4 mph, gusting to 16 mph. |
| Sunday |
Partly to mostly sunny in the morning, becoming sunny in the afternoon. High 22°. UV index up to 4. Wind north around 6 mph. |
| Sunday night |
Fair in the evening, becoming clear after midnight. Cool. Low 9°. Wind northwest around 4 mph. |
| Monday |
Sunny in the morning, becoming partly cloudy in the afternoon. High 23°. UV index up to 4. Wind north around 3 mph in the morning, becoming south-southwest around 9 mph, gusting to 18 mph, in the afternoon. |
| Monday night |
Partly cloudy in the evening, becoming fair to partly cloudy after midnight. Low 10°. Wind south-southwest around 6 mph, gusting to 16 mph, in the evening, becoming 2 mph after midnight. |
| Tuesday |
Partly to mostly cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. High 23°. UV index up to 4. Wind southeast around 6 mph, gusting to 16 mph, in the morning, becoming 10 mph, gusting to 18 mph, in the afternoon. |
| Tuesday night |
Cloudy in the evening, becoming dense overcast after midnight. A slight chance of rain in the evening, then rain likely after midnight. Low 13°. Wind south-southeast around 7 mph. Chance of precipitation 70 percent. Precipitation mostly around 10 mm. |
| Wednesday |
Dense overcast in the morning, becoming partly to mostly cloudy in the afternoon. Patchy light fog in the morning. Rain likely in the morning, then a slight chance of rain in the afternoon. Precipitation showery or intermittent. Breezy. High 21°. Wind west-southwest around 10 mph, gusting to 19 mph, in the morning, becoming 14 mph, gusting to 21 mph, in the afternoon. Chance of precipitation 80 percent. Precipitation mostly around 20 mm. |
WXSIM forecast formatting script by Saratoga-Weather.org.
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.