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As of 01:07 CDT

Weather in Portland, TN

69°Current weather

Portland, Sunday, 9 August, 01:07

Overcast. Feels like 70°. High 89°, low 69°.

Pressure30.09 inHg
Wind3.8 mph S
Humidity92%
Visibility6.2 mi
Dew point68°
Mon, 1091° / 71°0Clear
91 °Clear

Portland, Monday, 10 August

Clear. High 91°, low 71°.

Pressure30.09 inHg
Wind9.2 mph SW
Humidity60%
Visibility6.2 mi
Dew point72°
Tue, 1192° / 72°0.03Light rain
92 °Light rain

Portland, Tuesday, 11 August

Light rain. High 92°, low 72°.

Pressure30.00 inHg
Wind12.3 mph SW
Humidity59%
Visibility6.2 mi
Dew point73°
Wed, 1290° / 69°0.69Heavy rain
90 °Heavy rain

Portland, Wednesday, 12 August

Heavy rain. High 90°, low 69°.

Pressure29.88 inHg
Wind12.2 mph SW
Humidity62%
Visibility6.2 mi
Dew point72°
Thu, 1383° / 69°0.09Light rain
83 °Light rain

Portland, Thursday, 13 August

Light rain. High 83°, low 69°.

Pressure30.00 inHg
Wind5.4 mph NW
Humidity71%
Visibility—
Dew point70°
Fri, 1488° / 70°2.15Heavy rain
88 °Heavy rain

Portland, Friday, 14 August

Heavy rain. High 88°, low 70°.

Pressure30.03 inHg
Wind11.4 mph NE
Humidity82%
Visibility—
Dew point73°
Sat, 1574° / 67°0.35Rain
74 °Rain

Portland, Saturday, 15 August

Rain. High 74°, low 67°.

Pressure30.21 inHg
Wind8 mph NE
Humidity92%
Visibility—
Dew point69°
Sun, 1691° / 66°0.07Light rain
91 °Light rain

Portland, Sunday, 16 August

Light rain. High 91°, low 66°.

Pressure30.06 inHg
Wind10.7 mph S
Humidity63%
Visibility—
Dew point71°
Mon, 1789° / 75°0.11Light rain
89 °Light rain

Portland, Monday, 17 August

Light rain. High 89°, low 75°.

Pressure30.00 inHg
Wind5.6 mph N
Humidity66%
Visibility—
Dew point74°
Tue, 1888° / 68°0.33Rain
88 °Rain

Portland, Tuesday, 18 August

Rain. High 88°, low 68°.

Pressure29.97 inHg
Wind8.1 mph NW
Humidity66%
Visibility—
Dew point73°
Wed, 1985° / 68°0Partly cloudy
85 °Partly cloudy

Portland, Wednesday, 19 August

Partly cloudy. High 85°, low 68°.

Pressure29.91 inHg
Wind5 mph W
Humidity65%
Visibility—
Dew point70°
Thu, 2078° / 66°0Clear
78 °Clear

Portland, Thursday, 20 August

Clear. High 78°, low 66°.

Pressure29.94 inHg
Wind10.2 mph NE
Humidity59%
Visibility—
Dew point61°
Fri, 2176° / 60°0.06Light rain
76 °Light rain

Portland, Friday, 21 August

Light rain. High 76°, low 60°.

Pressure30.03 inHg
Wind8.7 mph NE
Humidity65%
Visibility—
Dew point60°
Sat, 2291° / 65°0.14Light rain
91 °Light rain

Portland, Saturday, 22 August

Light rain. High 91°, low 65°.

Pressure29.94 inHg
Wind10.4 mph S
Humidity73%
Visibility—
Dew point69°
Sun, 2386° / 71°0Overcast
86 °Overcast

Portland, Sunday, 23 August

Overcast. High 86°, low 71°.

Pressure30.00 inHg
Wind8.6 mph S
Humidity61%
Visibility—
Dew point69°
Mon, 2482° / 72°0.09Light rain
82 °Light rain

Portland, Monday, 24 August

Light rain. High 82°, low 72°.

Pressure30.06 inHg
Wind9 mph W
Humidity75%
Visibility—
Dew point71°

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Portland, TN are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Portland, TN since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.