Most accurate forecast for Saturday!? Garden Party planned

[RoSa1719]

Hi all.
hosting my daughters 4th birthday party on Saturday 12-3pm in our garden (we live in Hertfordshire)
i am stressing about the weather 😫
some day dry, some day light rain and some say heavy rain.
where do you find the most accurate forecasts?

thank you

Hi @RoSa1719
i always go by Google weather. Just checked and it's going to be nice weather on Saturday in Hertfordshire.

I use the Met Office app. The most reliable one in my experience.