Weather Forecast for Blenheim

Weather Forecast for Blenheim9m above sea level

Expect possible low cloud/fog in the afternoon

Now

-°

Blenheim

Observed at 6:13am from:
Blenheim (IBLENH93)

Rain (today)WindHumidexHumidityPressure

-mmN km/h-°-%1022.01hPa

Today

21°

Blenheim

Mostly sunny. Fairly breezy West to Nor'West winds.

Rain (chance)Rain (amount)WindUV IndexSunriseSunset

10%traceWNW 25km/h3 (Moderate)7:09pm5:33am

Tonight

10°

Blenheim

Mostly clear. Breezy Sou'West winds.

Rain (chance)Rain (amount)WindMoonriseMoonsetMoon Phase

10%traceSW 18km/h4:05am4:19pmWaxing Gibbous

Next 24 Hours in Blenheim

Next 9 Days in Blenheim

Wed 29 Apr

15°
Day

4°
Night

A mix of sun and cloud. Fairly breezy Sou'East winds.

SE
23km/h

0%
chance
of rain

trace

A mix of sun and cloud. Fairly breezy Sou'East winds.

View hourly forecast

Thu 30 Apr

17°
Day

5°
Night

Mainly sunny. Light Northerly winds.

N
11km/h

10%
chance
of rain

trace

Mainly sunny. Light Northerly winds.

View hourly forecast

Fri 1 May

17°
Day

5°
Night

Mainly sunny. Light Nor'East winds.

NE
11km/h

10%
chance
of rain

trace

Mainly sunny. Light Nor'East winds.

View hourly forecast

Sat 2 May

17°
Day

6°
Night

Mostly sunny. Light Northerly winds.

N
12km/h

10%
chance
of rain

trace

Mostly sunny. Light Northerly winds.

View hourly forecast

Sun 3 May

17°
Day

7°
Night

Mostly sunny. Breezy North to Nor'West winds.

NNW
14km/h

10%
chance
of rain

trace

Mostly sunny. Breezy North to Nor'West winds.

View hourly forecast

Mon 4 May

18°
Day

8°
Night

Mainly sunny. Fairly breezy North to Nor'West winds.

NNW
20km/h

10%
chance
of rain

trace

Mainly sunny. Fairly breezy North to Nor'West winds.

View hourly forecast

Tue 5 May

18°
Day

10°
Night

Partly cloudy. Fairly breezy North to Nor'West winds.

NNW
21km/h

10%
chance
of rain

trace

Partly cloudy. Fairly breezy North to Nor'West winds.

View hourly forecast

Wed 6 May

18°
Day

10°
Night

Morning showers. Breezy North to Nor'West winds.

NNW
17km/h

30%
chance
of rain

0.9mm

Morning showers. Breezy North to Nor'West winds.

View hourly forecast

Thu 7 May

17°
Day

10°
Night

Showers. Breezy Northerly winds.

N
17km/h

40%
chance
of rain

2.4mm

Showers. Breezy Northerly winds.

View hourly forecast

Comments

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Add new comment

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

Reply

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