Lewis County, TN Weather


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United States / Tennessee / No Metro Area / Lewis County / Cities / Zip Codes

The most pleasant months of the year for Lewis County are May, October and September. In Lewis County, there are 4 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for Lewis County with an average high temperature of 89.5°, which ranks it as warmer than most places in Tennessee. January is the snowiest month in Lewis County with 1.0 inches of snow, and 3 months of the year have significant snowfall. The most uncomfortably humid months are July, August and June.

Today's Weather - Lewis, TN

6 AM PST

Mostly Sunny

51°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
TodayMostly Sunny74° / 54°NE 5 mph
FridaySlight Chance Showers And Thunderstorms then Partly Sunny82° / 64°SE 10 to 15 mph
SaturdayPartly Sunny82° / 63°S 15 to 20 mph
SundayMostly Sunny82° / 64°SSE 15 mph
MondaySlight Chance Rain Showers then Chance Showers And Thunderstorms80° / 61°S 15 mph
TuesdayShowers And Thunderstorms Likely79° / 58°W 5 to 10 mph
WednesdaySlight Chance Rain Showers then Slight Chance Showers And Thunderstorms83° / 59°WSW 5 mph

Weather Highlights

Summer High: the July high is around 90 degrees
Winter Low: the January low is 26
Rain: averages 56 inches of rain a year
Snow: averages 3 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the Lewis County area is 7 (10=best), which means it is more comfortable than most places in Tennessee.

7 / 10

A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 7.8. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.


Average Monthly High and Low (°F)
HighLow
January48° 26°
February54° 29°
March63° 36°
April73° 45°
May79° 54°
June86° 63°
July90° 67°
August89° 65°
September83° 57°
October73° 45°
November62° 37°
December51° 29°
Hot, Freezing, Rainy, Snowy Days: Lewis
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January02281
February01891
March011100
April0390
May10100
June7090
July15090
August14070
September5060
October0370
November01090
December020100

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

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