Douglas: Foggy nights and unusual warmth

Expect a few highs in the 80s as we sail into October.

Columnist Icon
The Minnesota Star Tribune
September 23, 2025 at 8:20PM

“Paul, what time will the fog lift? Please be specific.” Let me check — 9:57 a.m. I sympathize with meteorologists in San Francisco, where fog is a nearly daily fixture and weather can vary block by block, based on your proximity to the water.

September is our foggiest month of the year, the combination of longer nights and lingering summer moisture creating a ripe environment for clouds forming on the ground.

Fog may not be as thick or prevalent Wednesday morning as a light northeast breeze keeps the atmosphere stirred up. The sun should break through by late morning with afternoon highs in the low to mid-70s.

Temperatures approach 80 again late in the week, and the European weather model shows three or four days at or above 80 next week, as we sail into October.

With a sun angle as high in the sky as it was on March 18, warm fronts are living on borrowed time, but there’s little doubt that a “mild bias” will hang on at least for the next two weeks.

Take your boat or dock out in September? Heck, I’d wait until early October.

about the writer

about the writer

Paul Douglas

Columnist

Paul Douglas is a nationally-respected meteorologist, with 40 years of broadcast television and radio experience. He provides daily print and online weather services for the Star Tribune.

See Moreicon