Record heat above 90 likely on Tuesday; rain chances increase this week starting Wednesday

National Weather Service

National Weather Service

Tuesday forecast for Austin: It’s going to be another hot one — with the 80-year-old daily heat record of 90 degrees set in 1936 likely to be broken — but a cold front arrives late Tuesday to cool down temperatures and bring high chances for rain, especially on Thursday and into Friday.

On this particularly warm Tuesday morning, with temperatures already at 68 at Camp Mabry as of 5:30 a.m., Central Texas will likely see fog across the I-35 corridor and into the eastern edges of the Hill Country through 7 a.m., the National Weather Service says. Visibility could be a quarter-mile or less in  these areas of locally dense fog, but generally, visibility will remain more than a mile. The weather service recommends that driver be cautious about rapid changes in visibility on Central Texas roads.

Downtown Austin is shrouded in a haze as morning commuters make their way to work on Tuesday, March 15, 2016. (Laura Skelding / American-Statesman)

Downtown Austin is shrouded in a haze as morning commuters make their way to work on Tuesday, March 15, 2016. (Laura Skelding / American-Statesman)

The rest of Tuesday appears to be torn out of a summer scrapbook: Sunshine and clear skies with temperatures peaking at 90 or higher, which will either match or surpass the heat record for March 15. South-southwest winds of 5 to 10 mph become west-northwest breezes to signal the arrival of a cold front late in the day. At night, the cold front will send the evening low to around 59.

Wednesday’s outlook calls for a high near 83, with winds shifting in the afternoon to southeast breezes that will bring increasing cloudiness. A 20 percent chance of showers and thunderstorms appears in the forecast at night, the weather service says, as winds calm and the low temperature slips to 63.

The increased cloud cover persists Thursday as do rain chances: The St. Patrick’s Day forecast calls for a 30 percent chance of showers and storms under partly sunny skies and a high near 76, which is only a few degrees above the normal high for this time of year.

Rain chances ramp up to 40 percent if you are planning to head out to celebrate St. Patrick’s Day after work, the weather service says. Expect mostly cloudy skies and a low around 61 on Thursday night.

By Friday, a 40 percent chance of showers and thunderstorms remains in the forecast as the day is expected to stay mostly cloudy with a high near 72. Rain chances increase to 50 percent with a low around 53, the weather service says.

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