Weather Today in Harpenden
Today's weather is observed from 00:00 to 24:00 GMT (view table of current observations)
Temperature, °C: last hour - red column (red value); previous hour - green pointer; maximum for day - orange pointer;
minimum for day - blue pointer.
Rainfall, mm: hourly and total - blue column (blue value).
Wind Variables, m/s: last hour - purple arrow (within title text); previous hour - blue arrow