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

Portland Municipal Airport (K1M5)

Lat: 36.59°NLon: 86.48°WElev: 818ft.

Fair

84°F

29°C

Humidity 58%
Wind Speed NW 6 mph
Barometer 30.04 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 19 Aug 12:55 pm CDT
Extended Forecast for

6 Miles N Lafayette TN

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 91. Northwest wind around 5 mph becoming south.

    High: 91 °F

    Partly Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 71. Calm wind becoming southwest around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 71 °F

    Chance
    T-storms then
    Showers

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm before 9am, then a chance of showers and thunderstorms, mainly between 9am and noon. Partly sunny, with a high near 86. South wind around 5 mph becoming west northwest in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 86 °F

    Showers
    Likely then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms. Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 68. Calm wind. Chance of precipitation is 20%.

    Low: 68 °F

    Slight Chance
    T-storms and
    Patchy Fog

  • Friday

    Friday: A slight chance of showers and thunderstorms between 1pm and 4pm, then a slight chance of showers after 4pm. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 87. Calm wind becoming north northwest around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 87 °F

    Patchy Fog
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: Patchy fog before midnight, then patchy fog after 1am. Otherwise, mostly clear, with a low around 66. Calm wind.

    Low: 66 °F

    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 8am. Otherwise, sunny, with a high near 88. Calm wind becoming west northwest around 5 mph in the afternoon.

    High: 88 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 66. Northwest wind around 5 mph becoming calm.

    Low: 66 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 87. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 87 °F

    Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 91. Northwest wind around 5 mph becoming south.
Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 71. Calm wind becoming southwest around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday
Showers likely and possibly a thunderstorm before 9am, then a chance of showers and thunderstorms, mainly between 9am and noon. Partly sunny, with a high near 86. South wind around 5 mph becoming west northwest in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
A slight chance of showers and thunderstorms. Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 68. Calm wind. Chance of precipitation is 20%.
Friday
A slight chance of showers and thunderstorms between 1pm and 4pm, then a slight chance of showers after 4pm. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 87. Calm wind becoming north northwest around 5 mph in the afternoon. Chance of precipitation is 20%.
Friday Night
Patchy fog before midnight, then patchy fog after 1am. Otherwise, mostly clear, with a low around 66. Calm wind.
Saturday
Patchy fog before 8am. Otherwise, sunny, with a high near 88. Calm wind becoming west northwest around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 66. Northwest wind around 5 mph becoming calm.
Sunday
Sunny, with a high near 87. Calm wind becoming north northwest around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 64.
Monday
A 20 percent chance of showers. Mostly sunny, with a high near 87.
Monday Night
A 20 percent chance of showers. Partly cloudy, with a low around 66.
Tuesday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 90.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles N Lafayette TN
 36.6°N 86.05°W (Elev. 801 ft)
Last Update:
1:31 am CDT Aug 19, 2026
Forecast Valid:
1pm CDT Aug 19, 2026-6pm CDT Aug 25, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation