Monday is starting out chilly and gray in Austin. As of 4:51 a.m. CDT on April 20, 2026, temperatures hovered around 56°F under thick cloud cover with pockets of light rain. Showers and thunderstorms are likely on and off through the day, with a high near 65°F and periods of steady rain that could slow both the morning and afternoon commute.
Stormy Stretch Through Tuesday
Widespread showers and rounds of thunderstorms are expected Monday and again Tuesday, with rain chances near 90% both days and new rainfall generally limited to a few tenths of an inch. According to the National Weather Service Austin/San Antonio, the official forecast calls for typical totals of about one quarter to one half inch.
The same forecast carries a "Level 1 of 4 risk of Excessive Rainfall" and notes that where storms repeatedly track over the same area, localized pockets could pick up 1 to 3 inches. With light east-northeast winds around 0 to 5 mph, some of these cells may move slowly, raising the chance for ponding on roads and minor urban flooding in poor-drainage spots.
Commute And Outdoor Plans
Drivers should be ready for slick pavement, standing water on low-lying streets and longer travel times during peak hours. Build in extra time for trips, especially along I-35 and other major corridors, since heavier showers could push traffic to a crawl.
Outdoor events and work crews should have a solid rain backup plan. If you come across a flooded roadway, the guidance remains simple and serious: turn around rather than drive through. Keep umbrellas and waterproof layers nearby, and avoid activities near creeks and low-water crossings while storms move through.
Late-Week Warmup On Deck
Rain chances are expected to ease by Wednesday afternoon, April 22, as drier air briefly noses in and highs rebound into the low 80s. A stronger southerly flow is projected to set up late in the week, nudging afternoon highs into the mid to upper 80s on Thursday and Friday, with only isolated showers possible before the weekend.
Southerly winds turn breezy Thursday, with gusts that could reach around 20 mph, which will add to the warm and humid feel.
Aviation
Local terminals can expect ceilings to drop into IFR and MVFR ranges this afternoon, with visibility reduced at times in heavier showers. Flight delays are possible, so travelers should check with their airline and review airport advisories before heading to AUS.
