Weather forecast for 10 daysRio Grande City, TX

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 79°F
  • 63°F
AM Showers
AM Showers
  • Precip. probability: 35%
  • Precipitation: 0.04"
  • Wind: 6mphNNW 344°
  • Humidity: 39%
  • UV index: 8
  • Sunrise: 7:36 am CDT
  • Sunset: 7:04 pm CDT
  • ▼
On Sunday, October 18, light morning rain showers are possible throughout the early hours.
Minimal precipitation is anticipated for today. The maximum temperature will be a temperate 78.8°F, while the minimum forecasted temperature is a breezy 62.6°F.
Forecast models suggest colder conditions, with a peak that mirrors November's climate average rather than October's.
Sunrise was at 7:36 am and sunset will be at 7:04 pm; the daylight will last for 11h and 28min.

10-day overview

Daily temperatures

Warmest period: Friday - Saturday 91°C.
Coldest day: today 79°C.

Chance of precipitation

Highest chance: today 35%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 79°F
  • 63°F
AM Showers
AM Showers
  • Precip. probability: 35%
  • Precipitation: 0.04"
  • Wind: 6mphNNW 344°
  • Humidity: 39%
  • UV index: 8
  • Sunrise: 7:36 am CDT
  • Sunset: 7:04 pm CDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 84°F
  • 68°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 9mphNE 38°
  • Humidity: 52%
  • UV index: 6
  • Sunrise: 7:36 am CDT
  • Sunset: 7:03 pm CDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 88°F
  • 68°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 10mphNE 49°
  • Humidity: 63%
  • UV index: 6
  • Sunrise: 7:37 am CDT
  • Sunset: 7:02 pm CDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 90°F
  • 68°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 16%
  • Precipitation: 0"
  • Wind: 9mphNE 37°
  • Humidity: 61%
  • UV index: 8
  • Sunrise: 7:37 am CDT
  • Sunset: 7:01 pm CDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 90°F
  • 64°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 11%
  • Precipitation: 0"
  • Wind: 9mphENE 69°
  • Humidity: 56%
  • UV index: 8
  • Sunrise: 7:38 am CDT
  • Sunset: 7:00 pm CDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 91°F
  • 66°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 11mphESE 107°
  • Humidity: 53%
  • UV index: 8
  • Sunrise: 7:39 am CDT
  • Sunset: 7:00 pm CDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 91°F
  • 70°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 14mphESE 117°
  • Humidity: 54%
  • UV index: 8
  • Sunrise: 7:39 am CDT
  • Sunset: 6:59 pm CDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 90°F
  • 70°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 11%
  • Precipitation: 0.04"
  • Wind: 13mphE 100°
  • Humidity: 56%
  • UV index: 6
  • Sunrise: 7:40 am CDT
  • Sunset: 6:58 pm CDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 90°F
  • 68°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 12mphE 98°
  • Humidity: 58%
  • UV index: 7
  • Sunrise: 7:40 am CDT
  • Sunset: 6:57 pm CDT
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 90°F
  • 72°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 21%
  • Precipitation: 0"
  • Wind: 12mphESE 105°
  • Humidity: 60%
  • UV index: 7
  • Sunrise: 7:41 am CDT
  • Sunset: 6:56 pm CDT
  • ▼
Models point to a combination of primarily cloud-filled and occasionally rain-filled and bright weather is predicted.
With minimal precipitation of 0.04", rainfall is forecasted for Sunday and next Sunday.
Temperature fluctuation will be noticeable over the next several days. Forecast highs will fluctuate between 78.8°F and 91.4°F, while the forecast minimum temperature falls between 62.6°F and 71.6°F.
Friday and Saturday, with the highest temperature of 91.4°F, will be the hottest days in Rio Grande City; today is the coldest day, with a maximum temperature of 78.8°F.
Taking the humidity into consideration, the maximum feel-like temperature may increase and vary between 78.8°F and a sizzling 98.6°F.
Updated: Oct 18, 2026 @ 12:39:37 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, expect on-and-off morning showers creating wet conditions.

Today, there is a low chance of minimal precipitation in Rio Grande City.

Today, the maximum temperature will be 78.8°F, while the minimum temperature will be 62.6°F.
Today, the maximum temperature will be a couple of degrees lower than the average highest temperature in October. The lowest temperature will be also moderately lower than the average low of 70°F.

On Sunday, in Rio Grande City, sunrise was at 7:36 am and sunset will be at 7:04 pm (CDT).

In Rio Grande City, today, there will be 11h and 28min of daylight.