Hazardous Weather Conditions
Current conditions at
Portland Municipal Airport (K1M5)
Lat: 36.59°NLon: 86.48°WElev: 818ft.
Mostly Cloudy
90°F
32°C
| Humidity | 71% |
| Wind Speed | Calm |
| Barometer | 29.94 in |
| Dewpoint | 79°F (26°C) |
| Visibility | 10.00 mi |
| Heat Index | 107°F (42°C) |
| Last update | 26 Jul 2:15 pm CDT |
Extended Forecast for
Portland TN
Heat Advisory July 27, 10:00am until July 28, 08:00pm
This Afternoon
High: 90 °F
Slight Chance
T-stormsTonight
Low: 74 °F
Chance
T-storms then
Showers
Likely and
Patchy FogMonday
High: 92 °F
Chance
Showers then
Slight Chance
T-stormsMonday Night
Low: 76 °F
Mostly Clear
Tuesday
High: 92 °F
Mostly Sunny
then Chance
T-stormsTuesday Night
Low: 71 °F
Slight Chance
T-storms then
Slight Chance
ShowersWednesday
High: 86 °F
Sunny
Wednesday Night
Low: 67 °F
Mostly Clear
Thursday
High: 86 °F
Sunny
Detailed Forecast
This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. Heat index values as high as 103. West northwest wind around 5 mph.
Tonight
A chance of showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 4am, then a chance of showers and thunderstorms after 4am. Patchy fog after midnight. Otherwise, increasing clouds, with a low around 74. West northwest wind around 5 mph becoming calm. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
A chance of showers before 7am, then a slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 92. Heat index values as high as 109. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 30%.
Monday Night
Mostly clear, with a low around 76. Southwest wind 5 to 10 mph.
Tuesday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92. West wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 71. North wind 5 to 10 mph. Chance of precipitation is 20%.
Wednesday
Sunny, with a high near 86. North wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 67. Northeast wind around 5 mph.
Thursday
Sunny, with a high near 86. North northeast wind around 5 mph.
Thursday Night
Mostly clear, with a low around 67.
Friday
Mostly sunny, with a high near 87.
Friday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Portland TN
36.58°N 86.53°W (Elev. 810 ft)
36.58°N 86.53°W (Elev. 810 ft)
1:31 pm CDT Jul 26, 2026
2pm CDT Jul 26, 2026-6pm CDT Aug 1, 2026
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