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.

Overcast

70°F

21°C

Humidity 100%
Wind Speed Calm
Barometer 30.09 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 25 Jul 12:15 am CDT
Extended Forecast for

6 Miles NNE Lafayette TN

  • Overnight

    Overnight: A 20 percent chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 66. Calm wind.

    Low: 66 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Partly sunny, with a high near 84. Calm wind becoming west southwest around 5 mph.

    High: 84 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms, mainly between 11pm and 1am. Patchy fog before 1am, then patchy fog after 2am. Otherwise, mostly cloudy, with a low around 69. Calm wind.

    Low: 69 °F

    Chance
    Showers and
    Patchy Fog

  • Sunday

    Sunday: Areas of fog before 9am. Otherwise, mostly sunny, with a high near 88. Heat index values as high as 97. Calm wind becoming north northwest around 5 mph.

    High: 88 °F

    Areas Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Patchy Fog

  • Monday

    Monday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 91. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 91 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 74. Calm wind becoming south southwest around 5 mph after midnight.

    Low: 74 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92. Southwest wind 5 to 10 mph becoming west northwest in the afternoon.

    High: 92 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 72. West northwest wind around 5 mph becoming calm in the evening.

    Low: 72 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 66. Calm wind.
Saturday
A 40 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Partly sunny, with a high near 84. Calm wind becoming west southwest around 5 mph.
Saturday Night
A 40 percent chance of showers and thunderstorms, mainly between 11pm and 1am. Patchy fog before 1am, then patchy fog after 2am. Otherwise, mostly cloudy, with a low around 69. Calm wind.
Sunday
Areas of fog before 9am. Otherwise, mostly sunny, with a high near 88. Heat index values as high as 97. Calm wind becoming north northwest around 5 mph.
Sunday Night
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 70. Calm wind.
Monday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 91. Calm wind becoming west southwest around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 74. Calm wind becoming south southwest around 5 mph after midnight.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92. Southwest wind 5 to 10 mph becoming west northwest in the afternoon.
Tuesday Night
Partly cloudy, with a low around 72. West northwest wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 90.
Wednesday Night
Partly cloudy, with a low around 69.
Thursday
Sunny, with a high near 89.
Thursday Night
Partly cloudy, with a low around 69.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles NNE Lafayette TN
 36.62°N 86°W (Elev. 699 ft)
Last Update:
1:31 pm CDT Jul 24, 2026
Forecast Valid:
12am CDT Jul 25, 2026-6pm CDT Jul 31, 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