"It has now moved away to the east, allowing the northeasterly flow to kick in this weekend.
"The winds during the weekend will be very light so it should be pleasant outdoors through to Sunday afternoon."
Rain is expected on Monday, bringing the first wet weather for March so far.
"The last rainfall for Whanganui was recorded at the airport on February 20," said Parkes.
"Scattered showers are expected to last through until Thursday. The rain band is moving down from the north so temperatures will stay quite warm with light northeasterly winds expected to turn southeasterly on Wednesday."
Temperatures will remain in the mid-20s throughout the week reaching 26C on Wednesday. Overnight low temperatures will be 15C every day until Thursday.
Daylight hours are now noticeably shorter with the sun rising at around 7.20am and setting at 7.40pm most days.