Mercedes, Texas | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Mostly Cloudy
    80°
    Sunday 5/19
    Forecast night icon
    80°
    Mostly Cloudy
    Hourly
    Night Details
    Mostly clear this evening then becoming mostly cloudy. Hazy this evening. Patchy fog after midnight. Lows in the upper 70s. East winds 10 to 15 mph. Heat index values up to 105 early this evening.
  • Forecast day icon
    Monday
    Mostly Sunny
    98°
    Forecast night icon
    Night
    Mostly Cloudy
    80°
    Monday 5/20
    Day
    98°
    Mostly Sunny
    Forecast day icon
    Night
    80°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Patchy fog in the morning. Hazy with highs in the upper 90s. Southeast winds 10 to 15 mph. Heat index values up to 110 in the afternoon.
    Night Details
    Mostly clear in the evening then becoming mostly cloudy. Hazy in the evening. Humid with lows in the upper 70s. Southeast winds 10 to 15 mph with gusts up to 25 mph. Heat index values up to 108 early in the evening.
  • Forecast day icon
    Tuesday
    Partly Sunny
    96°
    Forecast night icon
    Night
    Partly Cloudy
    79°
    Tuesday 5/21
    Day
    96°
    Partly Sunny
    Forecast day icon
    Night
    79°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly sunny in the morning then clearing. Hazy with highs in the upper 90s. Southeast winds 15 to 20 mph with gusts up to 30 mph. Heat index values up to 112 in the afternoon.
    Night Details
    Partly cloudy in the evening then becoming mostly cloudy. Hazy in the evening. Humid with lows in the upper 70s. Southeast winds 15 to 20 mph with gusts up to 30 mph. Heat index values up to 105 early in the evening.
  • Forecast day icon
    Wednesday
    Partly Cloudy
    95°
    Forecast night icon
    Night
    Partly Cloudy
    79°
    Wednesday 5/22
    Day
    95°
    Partly Cloudy
    Forecast day icon
    Night
    79°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Hazy hazy. Partly cloudy. Highs in the upper 90s. Lows around 80. Heat index values up to 110.
    Night Details
    Hazy hazy. Partly cloudy. Highs in the upper 90s. Lows around 80. Heat index values up to 110.
  • Forecast day icon
    Thursday
    Partly Cloudy
    95°
    Forecast night icon
    Night
    Partly Cloudy
    82°
    Thursday 5/23
    Day
    95°
    Partly Cloudy
    Forecast day icon
    Night
    82°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Hazy hazy. Partly cloudy. Highs in the upper 90s. Lows around 80. Heat index values up to 110.
    Night Details
    Hazy hazy. Partly cloudy. Highs in the upper 90s. Lows around 80. Heat index values up to 110.
  • Forecast day icon
    Friday
    Hot and Humid
    96°
    Forecast night icon
    Night
    Partly Cloudy
    81°
    Friday 5/24
    Day
    96°
    Hot and Humid
    Forecast day icon
    Night
    81°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Hot with highs around 100. Heat index values up to 115 in the afternoon.
    Night Details
    Mostly clear in the evening then becoming partly cloudy. Lows around 80. Heat index values up to 110 early in the evening.
  • Forecast day icon
    Saturday
    Hot and Humid
    97°
    Forecast night icon
    Night
    Warm and Humid
    81°
    Saturday 5/25
    Day
    97°
    Hot and Humid
    Forecast day icon
    Night
    81°
    Warm and Humid
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy. Hot. Highs around 100. Lows around 80. Heat index values up to 115.
    Night Details
    Partly cloudy. Hot. Highs around 100. Lows around 80. Heat index values up to 115.
  • Forecast day icon
    Sunday
    Hot and Humid
    96°
    Forecast night icon
    Night
    Warm and Humid
    81°
    Sunday 5/26
    Day
    96°
    Hot and Humid
    Forecast day icon
    Night
    81°
    Warm and Humid
    Forecast night icon
    Day Details
    Sunny hot with highs around 100. Heat index values up to 115 in the afternoon.
    Night Details
    Clear. Low temperature around 81F. Dew point will be around 75F with an average humidity of 76%. Winds will be 15 mph from the SE.
  • Forecast day icon
    Monday
    Hot and Humid
    95°
    Forecast night icon
    Night
    Mostly Clear
    79°
    Monday 5/27
    Day
    95°
    Hot and Humid
    Forecast day icon
    Night
    79°
    Mostly Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 95F. Dew point will be around 75F with an average humidity of 64%. Winds will be 17 mph from the SE.
    Night Details
    Mostly clear. Low temperature around 79F. Dew point will be around 75F with an average humidity of 75%. Winds will be 14 mph from the SE.
  • Forecast day icon
    Tuesday
    Mostly Sunny
    95°
    Forecast night icon
    Night
    Mostly Clear
    78°
    Tuesday 5/28
    Day
    95°
    Mostly Sunny
    Forecast day icon
    Night
    78°
    Mostly Clear
    Forecast night icon
    Day Details
    Mostly sunny. High temperature around 95F. Dew point will be around 75F with an average humidity of 65%. Winds will be 14 mph from the SE.
    Night Details
    Mostly clear with widely scattered thunderstorms. Chance of storms 30%. Low temperature around 78F. Dew point will be around 74F with an average humidity of 77%. Winds will be 11 mph from the SE.