Heavy rainfall forecast for Wednesday and Thursday
The Houston metro area is bracing for what could be the heaviest rainfall event so far this June, with significant downpours expected today and Thursday. The atmospheric setup favors intense thunderstorm development, especially during the morning hours, and forecasters have placed the region under a Stage 1 flood alert, with a close watch for possible escalation.
High-resolution models are pointing to widespread storms forming during the pre-dawn hours, especially to the west of the city, before moving across the metro area throughout the morning into early afternoon. The risk is twofold: torrential rain with localized totals possibly exceeding 5 inches (127 mm), and damaging winds, particularly over Harris County and nearby areas.
Wednesday storm timeline and threats
At 7:00 AM CT, radar imagery shows an impressive cluster of storms building near Matagorda Bay, slowly pushing northeast toward Houston. These storms are expected to impact the city between 9:00 AM and 3:00 PM, the window of highest concern for:
- Street flooding
- Intense lightning
- Localized damaging winds
Outside of storms, skies will stay mostly cloudy, and air cooled by rainfall should help keep afternoon highs in the upper 80s to 90°F (around 32°C), though humidity levels will remain uncomfortably high.
Thursday setup mirrors Wednesday
The overnight hours into Thursday morning may see another batch of storms organizing west of Houston, again sweeping into the city in the morning. The exact timing remains uncertain—some models bring activity just before dawn, others later in the morning—but the risk for flooding and locally strong storms remains high.
Expected rainfall totals through Thursday will vary across the area:
- General range: 1 to 3 inches (25 to 76 mm)
- Localized totals: Possibly 5+ inches (127+ mm)
Flooding will largely depend on storm movement speed and training, and the Stage 1 alert may be upgraded if these conditions persist. Winds outside of thunderstorms are expected to remain light. Overnight conditions will be warm and muggy, consistent with the moist, unstable air mass in place.
Friday through the weekend: Scattered showers, fewer severe threats
While rain chances remain elevated heading into Friday, Saturday, and Sunday, the intensity and organization of storms will likely decrease. The dominant pattern favors pop-up showers and afternoon storms rather than large, sweeping systems.
Expect:
- Rain chances around 50%
- Variable cloud cover with sunshine breaks
- Highs rising into the low 90s (33–34°C)
With no clear drying trend, outdoor plans should be flexible, as showers may be hit-or-miss in nature.
Next week: Uncertain trends continue
Early forecasts for next week suggest a persistence of warm, humid conditions, with daily shower chances continuing into at least Tuesday or Wednesday. Confidence is too low to determine whether the second half of the week will bring clearing skies or a continuation of the wet pattern.
Hurricane rumors for Galveston? Not supported
Despite social media buzz, including TikTok chatter about a potential tropical storm or hurricane heading toward Galveston next week, current meteorological models offer no evidence of such a system developing. While the Atlantic hurricane season is active, and vigilance is important, there’s no credible model support indicating a threat to the Texas Gulf Coast at this time.
Stay tuned to official forecasts and local weather alerts, especially as storms approach over the next 48 hours.
