Weather Forecast for Blenheim9m above sea level
Clear. Light Northerly winds.
Now
Today
Tonight
Next 24 Hours in Blenheim
Next 9 Days in Blenheim
Day
Night
23km/h
chance
of rain
trace
Day
Night
11km/h
chance
of rain
trace
Day
Night
11km/h
chance
of rain
trace
Day
Night
12km/h
chance
of rain
trace
Day
Night
14km/h
chance
of rain
trace
Day
Night
20km/h
chance
of rain
trace
Day
Night
21km/h
chance
of rain
trace
Day
Night
17km/h
chance
of rain
0.9mm
Day
Night
17km/h
chance
of rain
2.4mm
Comments
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Latest Video
A cold front to brush the south, but high pressure dominates
Today’s video is short and sharp because there isn’t a lot of weather on the way! A cold front will…
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Anne on 21/04/2026 7:39pm
Thurs 23, says 0% chance of 5.5 ml of rain …
I realise that forecasts are only a ‘best guess’ and can change at any time, but this seems to me on of the weirder ones, would love to know if there is an explanation
Reply
WW Forecast Team on 21/04/2026 8:07pm
Hi Anne, our rainfall data each day in the daily totals is actually broken into two segments: Daytime and nightime. So if you see that it means rainfall will be occuring overnight. If you use the rain graphs at RuralWeather.co.nz or in the WeatherWatch App you will be able to make more sense of it.
Kind regards
– WW
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