Current conditions at
Portland Municipal Airport (K1M5)
Lat: 36.59°NLon: 86.48°WElev: 818ft.
A Few Clouds
79°F
26°C
| Humidity | 74% |
| Wind Speed | Calm |
| Barometer | 30.00 in |
| Dewpoint | 70°F (21°C) |
| Visibility | 10.00 mi |
| Heat Index | 82°F (28°C) |
| Last update | 24 May 3:55 pm CDT |
Extended Forecast for
3 Miles SSE Portland TN
This Afternoon

High: 78 °F
Chance
T-stormsTonight
Low: 63 °F
Chance
T-storms and
Patchy FogMemorial Day
High: 77 °F
Showers
Likely and
Patchy Fog
then Chance
T-stormsMonday Night

Low: 64 °F
Chance
ShowersTuesday

High: 80 °F
Showers
Tuesday Night

Low: 66 °F
Showers
LikelyWednesday

High: 81 °F
Showers
Wednesday Night

Low: 66 °F
Slight Chance
T-stormsThursday

High: 83 °F
Chance
T-storms
Detailed Forecast
This Afternoon
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 78. West wind around 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms before 3am, then a slight chance of showers between 3am and 4am, then a chance of showers and thunderstorms after 4am. Patchy fog after 8pm. Otherwise, mostly cloudy, with a low around 63. Calm wind. Chance of precipitation is 30%.
Memorial Day
A chance of showers and thunderstorms before 7am, then showers likely and possibly a thunderstorm between 7am and 9am, then a chance of showers and thunderstorms after 9am. Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 77. Calm wind becoming northeast around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
A 50 percent chance of showers and thunderstorms, mainly after 3am. Mostly cloudy, with a low around 64. East northeast wind around 5 mph becoming calm in the evening.
Tuesday
Showers and possibly a thunderstorm. High near 80. Calm wind becoming south around 5 mph. Chance of precipitation is 80%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. South wind around 5 mph. Chance of precipitation is 60%.
Wednesday
Showers, with thunderstorms also possible after 10am. High near 81. South southwest wind around 5 mph. Chance of precipitation is 80%.
Wednesday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 66. Calm wind.
Thursday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 83. Calm wind becoming northeast around 5 mph.
Thursday Night
A 30 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 66.
Friday
Showers and thunderstorms likely. Mostly cloudy, with a high near 81. Chance of precipitation is 60%.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. Chance of precipitation is 70%.
Saturday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 77. Chance of precipitation is 60%.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 61.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 78.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
3 Miles SSE Portland TN
36.56°N 86.5°W (Elev. 801 ft)
36.56°N 86.5°W (Elev. 801 ft)
1:31 pm CDT May 24, 2026
4pm CDT May 24, 2026-6pm CDT May 31, 2026


