National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Current conditions at

Athens McMinn County Airport (KMMI)

Lat: 35.4°NLon: 84.56°WElev: 874ft.

Partly Cloudy

91°F

33°C

Humidity 49%
Wind Speed Calm
Barometer 30.12 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 16 Aug 2:15 pm EDT
Extended Forecast for

5 Miles W Decatur TN

  • This Afternoon

    This Afternoon: Sunny and hot, with a high near 94. Heat index values as high as 101. Calm wind.

    High: 94 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 70. Calm wind.

    Low: 70 °F

    Mostly Clear

  • Sunday

    Sunday: Patchy fog before 9am. Otherwise, sunny and hot, with a high near 95. Heat index values as high as 100. Calm wind.

    High: 95 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 71. Calm wind.

    Low: 71 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 95. Calm wind.

    High: 95 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 71. Calm wind.

    Low: 71 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 96. Calm wind.

    High: 96 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 70.

    Low: 70 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 94.

    High: 94 °F

    Sunny then
    Chance
    T-storms

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 94. Heat index values as high as 101. Calm wind.
Tonight
Mostly clear, with a low around 70. Calm wind.
Sunday
Patchy fog before 9am. Otherwise, sunny and hot, with a high near 95. Heat index values as high as 100. Calm wind.
Sunday Night
Mostly clear, with a low around 71. Calm wind.
Monday
Sunny and hot, with a high near 95. Calm wind.
Monday Night
Mostly clear, with a low around 71. Calm wind.
Tuesday
Sunny and hot, with a high near 96. Calm wind.
Tuesday Night
Mostly clear, with a low around 70.
Wednesday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 94.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 70.
Thursday
A 30 percent chance of showers and thunderstorms. Partly sunny and hot, with a high near 90.
Thursday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Friday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles W Decatur TN
 35.52°N 84.87°W (Elev. 682 ft)
Last Update:
1:36 pm EDT Aug 16, 2025
Forecast Valid:
2pm EDT Aug 16, 2025-6pm EDT Aug 22, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation