Bright or sunny spells should develop today after the early frost.
Tonight should be dry and largely clear with fog becoming more widespread compared to the previous night.
A slight frost will also develop, leading to a risk of icy patches on untreated surfaces.
Traffic is slow on the M62 westbound between J22 A672 Rishworth Moor and J18, M60 Simister Island.
A replacement bus service is running on Northern Rail between Hebden Bridge and Burnley Manchester Road due to engineering works.