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

75°F

24°C

Humidity 89%
Wind Speed S 7 mph
Barometer 30.17 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 9 Sep 1:55 am CDT
Extended Forecast for

4 Miles WNW Lafayette TN

  • Overnight

    Overnight: Mostly clear, with a low around 70. South wind around 5 mph.

    Low: 70 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 94. Heat index values as high as 98. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 94 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 72. South southwest wind around 5 mph.

    Low: 72 °F

    Mostly Clear

  • Thursday

    Thursday: Showers and thunderstorms likely, mainly before 4pm. Partly sunny, with a high near 93. Heat index values as high as 98. South southwest wind 5 to 10 mph. Chance of precipitation is 60%.

    High: 93 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm after 7pm. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 68. West southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.

    Low: 68 °F

    Showers
    Likely and
    Patchy Fog

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 90. Calm wind becoming south around 5 mph. Chance of precipitation is 50%.

    High: 90 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 40%.

    Low: 68 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91. Southwest wind around 5 mph.

    High: 91 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 69. Calm wind.

    Low: 69 °F

    Slight Chance
    T-storms

Detailed Forecast

Overnight
Mostly clear, with a low around 70. South wind around 5 mph.
Wednesday
Sunny, with a high near 94. Heat index values as high as 98. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 72. South southwest wind around 5 mph.
Thursday
Showers and thunderstorms likely, mainly before 4pm. Partly sunny, with a high near 93. Heat index values as high as 98. South southwest wind 5 to 10 mph. Chance of precipitation is 60%.
Thursday Night
Showers likely and possibly a thunderstorm after 7pm. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 68. West southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 90. Calm wind becoming south around 5 mph. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 40%.
Saturday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91. Southwest wind around 5 mph.
Saturday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 69. Calm wind.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92.
Sunday Night
Mostly clear, with a low around 69.
Monday
Sunny, with a high near 92.
Monday Night
Mostly clear, with a low around 70.
Tuesday
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 93.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Lafayette TN
 36.56°N 86.09°W (Elev. 801 ft)
Last Update:
1:31 am CDT Sep 9, 2026
Forecast Valid:
2am CDT Sep 9, 2026-6pm CDT Sep 15, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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