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Baton Rouge, Louisiana
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Thursday AM Forecast: Greatest heavy rain threat over, isolated storms remain possible

55 minutes 31 seconds ago Thursday, June 18 2026 Jun 18, 2026 June 18, 2026 9:30 AM June 18, 2026 in Forecast Discussion
Source: The Storm Station

Thankfully, the Capital Area was spared from the worst of the heavy rain and severe potential this morning. Further to the east, closer to places like New Orleans and Slidell, it has been a very different story. For the rest of the day, rain coverage goes down, but isolated storms will remain.

Today & Tonight: The potential for flash flooding continues to trend lower, but it cannot be ruled out, especially for areas north of Baton Rouge. This is also where rain chances will be the highest for the rest of the day. Overall, rain coverage will be isolated through the afternoon, meaning a good chunk of us will stay dry. Highs will reach into the upper 80s under mostly cloudy skies. Overnight, rain chances go way down, with lows in the upper 70s.

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Rainfall totals over the past 3 days have been very high over some portions of southeast Louisiana. Notably, areas north and northwest of Baton Rouge have been hit especially hard, with much lower totals closer to the Capital City. There is also enhanced rainfall totals further to the south and east, closer to New Orleans and Slidell.

 

Up Next: The widespread flooding threat diminishes Friday, but scattered storms remain possible, with isolated action into Saturday. Sunshine returning to the region will allow temperatures to climb into the lower and middle 90s. Heat index values could approach 108 to 110 degrees Friday through Sunday, and Heat Advisories may be needed. Early next week looks hotter with lower rain chances, especially Monday.

The Tropics: Arthur is now just a remnant area of low pressure, driving a lot of heavy rain and severe weather across the south. There are low chances that this low could re-develop into a tropical storm Friday or Saturday after it exits the east coast and moves into the Atlantic.

Local Rivers: With recent heavy rain and more storms on the way, several local river gauges are forecast to rise. To track conditions, find the latest river levels and forecasts below, updated twice every hour.


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