Historical weather data, all-time temperature records, and monthly climate averages for Gretna, LA. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th in Gretna typically brings a mild spring day with highs near 77° and lows around 58°. There's a 28% chance of rain, though snow is essentially off the table — though someone here in 1915 would disagree, when temps bottomed out at a shocking 32°.
Gretna runs hot, with an all-time high of 104° set in June 2009 and an all-time low of just 6° recorded way back in February 1899. The wettest single day on record dumped an almost unbelievable 13.08 inches on October 2, 1937 — a reminder that this corner of Louisiana doesn't do anything halfway.
Summers here are long and intense, with average highs hovering around 92° from late June through August and the wettest stretch hitting in mid-July. Winter is mild by most standards — January highs average 64° — making fall and spring the sweet spots for visitors who want warmth without the full Gulf Coast humidity crush.