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.

Fog/Mist

72°F

22°C

Humidity 100%
Wind Speed N 8 mph
Barometer 29.97 in
Dewpoint 72°F (22°C)
Visibility 2.00 mi
Last update 10 Sep 11:35 pm CDT
Extended Forecast for

4 Miles NW Lafayette TN

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 69. Calm wind.

    Low: 69 °F

    Chance
    T-storms and
    Patchy Fog

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 91. Heat index values as high as 97. Calm wind becoming south southwest around 5 mph.

    High: 91 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms, mainly after 3am. Increasing clouds, with a low around 69. Northeast wind around 5 mph becoming calm.

    Low: 69 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 89. Heat index values as high as 98. South wind around 5 mph. Chance of precipitation is 90%.

    High: 89 °F

    Chance
    Showers then
    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of showers before 1am. Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 68. Calm wind.

    Low: 68 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 91. Calm wind becoming west around 5 mph.

    High: 91 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 67. Calm wind.

    Low: 67 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 91. Calm wind becoming east around 5 mph in the afternoon.

    High: 91 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 68. East southeast wind around 5 mph.

    Low: 68 °F

    Mostly Clear

Detailed Forecast

Tonight
A 40 percent chance of showers and thunderstorms. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 69. Calm wind.
Friday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 91. Heat index values as high as 97. Calm wind becoming south southwest around 5 mph.
Friday Night
A 40 percent chance of showers and thunderstorms, mainly after 3am. Increasing clouds, with a low around 69. Northeast wind around 5 mph becoming calm.
Saturday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 89. Heat index values as high as 98. South wind around 5 mph. Chance of precipitation is 90%.
Saturday Night
A 20 percent chance of showers before 1am. Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 68. Calm wind.
Sunday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 91. Calm wind becoming west around 5 mph.
Sunday Night
Mostly clear, with a low around 67. Calm wind.
Monday
Sunny, with a high near 91. Calm wind becoming east around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 68. East southeast wind around 5 mph.
Tuesday
Sunny, with a high near 94.
Tuesday Night
Mostly clear, with a low around 70.
Wednesday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 93.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 69.
Thursday
A 40 percent chance of showers and thunderstorms. Sunny, with a high near 91.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NW Lafayette TN
 36.56°N 86.09°W (Elev. 801 ft)
Last Update:
6:26 pm CDT Sep 10, 2026
Forecast Valid:
11pm CDT Sep 10, 2026-6pm CDT Sep 17, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation