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Wednesday AM Forecast: Days with lower humidity are numbered, rain chances rise soon

3 hours 33 minutes 49 seconds ago Wednesday, August 27 2025 Aug 27, 2025 August 27, 2025 5:43 AM August 27, 2025 in Forecast Discussion
Source: The Storm Station

Humidity will gradually rise for the rest of the week, effectively ending the more comfortable conditions. This uptick in moisture will eventually lead to more showers and storms.

Today & Tonight: Lower available moisture staying in place will lead to mostly sunny skies, and very few afternoon showers. Highs will reach into the lower 90s, with a heat index staying below the triple digits. Skies will stay mostly clear in the overnight hours, with lows in the lower 70s.

Up Next: Winds will flip back out of the south Thursday, allowing higher moisture values to move into the region. This will cause a few more clouds, and greater humidity values. Temperatures will climb into the low to mid-90s, but the chance for rain stays slim—just a brief, stray shower possible mainly south of I-10. By Friday, available moisture increases even more, as a disturbance and front slides down from the northwest. Scattered showers and thunderstorms will be the result, so keep this in mind if you have plans.

Looking towards the weekend, another weak front may drift into or even through the Capital Area, but the exact setup is still uncertain. Because of that, the rain forecast is a bit tricky. At this point, only spotty to isolated showers and storms are expected. However, rain chances could tick upward if the boundary stalls overhead, or trend lower if it pushes offshore. Check back with the Storm Station as the picture becomes clearer.

Early next week, humidity looks to ease once again, with a slight dip in temperatures also possible. Weather disruptions around Labor Day appear unlikely.

The Tropics: Tropical Storm Fernand is weakening over the open Atlantic, and will become post-tropical tonight. As of Wednesday morning, Fernand was located about 590 miles SSE of Cape Race, Newfoundland, moving east at 12 mph. The storm is producing maximum sustained winds of 45 mph.

No additional tropical development is expected over the next seven days. The rest of the Gulf, Caribbean, and Atlantic are quiet.


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– Balin

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