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5-day forecast / Richardson, TX

WednesdayScattered Showers And Thunderstorms93° / 74° 30%
ThursdayShowers And Thunderstorms80° / 71° 80%
FridayScattered Showers And Thunderstorms81° / 67° 51%
SaturdayScattered Showers And Thunderstorms79° / 66° 53%
SundayChance Rain Showers81° / 65° 29%

Flood Watch in Effect for Richardson as Storms Approach - Sep 30, 2 PM

Richardson weather, updated every four hours — local forecasts you can trust.

A severe Flood Watch is active for Richardson, TX, through October 2. Temperatures will drop tomorrow with heavy rain expected.

Reese Janssen

September 30, 20262 min read

National Weather Service radar for North Texas (KFWS)

*As of Sep 30, 2 PM local time.*

Active Alerts and Current Conditions

Residents of Richardson, Texas, are under a Severe Flood Watch that remains in effect until October 2 at 7:00 AM CDT. This alert was issued by the National Weather Service in Fort Worth on September 30. The watch indicates that conditions are favorable for flooding due to heavy rainfall.

As of this Wednesday afternoon, the air temperature stands at 86°F with a feels-like temperature of 89°F. Relative humidity is at 55%, and the dew point is 68°F. Winds are blowing from the south-southeast at 9 mph, with gusts reaching up to 32 mph. The sky remains cloudy.

Forecast for Today and Tonight

Today, isolated rain showers are expected before 4 pm, followed by scattered showers and thunderstorms. Partly sunny skies will give way to more cloud cover as the day progresses. The high will reach near 93°F, with heat index values climbing as high as 100°F.

South-southeast winds will increase to around 15 mph, with gusts up to 30 mph. There is a 30% chance of precipitation, with new rainfall amounts less than a tenth of an inch possible.

Tonight, scattered showers and thunderstorms will occur before 1 am, followed by more widespread showers and thunderstorms. Conditions will be mostly cloudy. The low will settle near 74°F, though temperatures may rise to around 77°F overnight.

Heat index values could reach as high as 98°F. South winds will persist at 10 to 15 mph, with gusts up to 30 mph. The chance of precipitation rises to 80%, with new rainfall amounts between three quarters and one inch possible.

Tomorrow’s Outlook

Tomorrow, showers and thunderstorms are expected before 4 pm, followed by scattered showers and thunderstorms. Skies will remain mostly cloudy. The high will drop to near 80°F, with temperatures falling to around 77°F in the afternoon.

South-southeast winds will decrease to around 10 mph, with gusts up to 25 mph. There is an 80% chance of precipitation, and new rainfall amounts between 1 and 2 inches are possible.

Safety Reminder

Given the severe Flood Watch, residents should monitor local news for updates and avoid driving through flooded roadways. Stay hydrated due to high heat indices today, and prepare for wet conditions tomorrow.

National Weather Service radar for North Texas (KFWS)

Sources

National Weather Service radar

National Weather Service forecast data

Open-Meteo weather data

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Reese Janssen

Reese Janssen covers weather, storms, and seasonal life around Richardson.

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