An increase in high pressure and onshore flow of more moisture-rich air out of the Gulf could make Monday warmer and muggier than in recent days.

A cold front will bring a 40% chance of storms and dramatic cooling to Houston, with fire watches issued for some counties.

Halloween is shaping up to have great weather with warm (but not too hot) daytime conditions, a cold fall evening and zero rain chances. For now, make sure to secure any outdoor decorations, as strong winds are anticipated with the approaching front. #TXwx #HOUwx pic.twitter.com/74relnDQQW

A flood watch is in effect for much of the surrounding counties as heavy storms will begin to move into the Houston area. See live radar, the latest weather alerts and the timeline for storms.

Houston's weather is transitioning to clear skies and cooler temperatures post-mugginess, with a cold front leading to lower humidity and below-average precipitation forecasted.

The National Weather Service (NWS) has issued a series of weather alerts for Houston and surrounding counties, urging residents to prepare for heavy rainfall, flash flooding, and the likelihood of severe thunderstorms over the weekend.

HOUSTON - The National Weather Service has issued a flood watch for much of the Houston area as heavy storms are set to begin to move into the area overnight until 5 a.m. Sunday morning. A storm system is set to move in, bringing potential for heavy rain and severe weather starting overnight tonight into Saturday morning.

Winds up to 40 mph are possible with these storms, as well as small hail. Heavy downpours could lead to localized flooding. Storms have the potential to intensify as they push further into Southeast Texas through the rest of the night. It is advised to stay in a safe location until the storms pass.

Amid widespread torrential rains, wind gusts reached as high as 45-60 mph across the Houston metro area, the National Weather Service said. In Downtown Houston, a gust of 59 mph was reported, while a 64 mph gust was measured in Hempstead.

Storms will linger in San Antonio through Saturday morning, but another round of storms could develop across Central and East Texas later in the day.

Houston faces flood threat Saturday as strong cold front brings heavy rain totals of 2-4 inches, with isolated amounts reaching 4-6 inches. National Weather Service issues flood watch for Southeast Texas from Friday night through Sunday morning.