。
The weather's worse than I expected.
Literal
Prediction-more-than terrible weather is-[plain-だ].
Short punchy complaint. ひどい ('terrible, awful, cruel') is a versatile i-adjective — it can describe weather, pain, behavior, or a situation — and carries strong negative feeling. 予想以上に intensifies the badness ('beyond what I thought it would be'). The plain copula だ keeps it casual.