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Houston is now under a flood watch through Memorial Day Monday

Flood watch expanded, heavy rain threatens Houston area

Flood watch may be expanded (Copyright 2026 by KPRC Click2Houston - All rights reserved.)

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Saturday’s forecast:

On Friday the flood watch was expanded to include Houston and Harris County as well as most of southeast Texas. The only areas not included in the flood watch right now are the far northern and northwestern counties. For everyone else, conditions are favorable for flooding, although flooding is not actively happening at the moment. It’s important to remember that a flood watch means flooding could occur due to the right ingredients in place, but if flooding starts, it will become a flood warning, that’s when you should take action, including seeking higher ground.

Houston and Harris County are now included (Copyright 2026 by KPRC Click2Houston - All rights reserved.)

Keep the umbrella handy. The forecast is calling for an 80 percent chance of thunderstorms on Saturday. The first big round of storms is set to arrive between 4 p.m. and 7 p.m. Saturday, with the heaviest action along and north of I-10. Some areas could see four hours of very heavy rain before a brief break.

Heavy rain falling Saturday night at 9pm (Copyright 2026 by KPRC Click2Houston - All rights reserved.)

Sunday’s forecast:

It’s tough to nail down an accurate forecast for Sunday. I think a lot of it will depend on how Saturday’s storms develop. If Saturday night’s storms are strong it’s because the area of low pressure that’s creating the storms is close by. If Saturday’s rain isn’t as intense it’s because the low is farther to the east of us. If this is the case, we’ll have rain Sunday morning. And these storms would be strong because now the low is moving through. It’s a bit complicated. My best advice is checking back here Saturday and watch Brittany and Daji this weekend on KPRC 2.

Morning thunderstorms are possible (Copyright 2026 by KPRC Click2Houston - All rights reserved.)

Memorial Day Monday:

The area of low pressure responsible for creating the excessive rain moves out Monday. This means while storms are still possible, the storms become isolated and confined mostly to the afternoon.

Lower storm chances Monday (Copyright 2026 by KPRC Click2Houston - All rights reserved.)

7-Day Forecast:

Because of a lingering trough of low pressure, scattered showers and thunderstorms are possible each afternoon through Friday. Expect a few bright spells in between, but don’t put away the rain gear just yet.

What to expect through Friday of next week (Copyright 2026 by KPRC Click2Houston - All rights reserved.)

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