Fort Smith (AR) Temperature by Month
Fort Smith in Arkansas, United States of America sees significant seasonal temperature differences, with daytime highs between 10°C (50°F) in January and 34°C (93°F) in July, averaging 23°C (73°F) annually. Explore the full monthly breakdown below.
Fort Smith Monthly Temperatures
Visitors to Fort Smith will encounter a climate influenced by big temperature differences across the year. Nighttime temperatures range from 23°C (73°F) in July to -2°C (28°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Fort Smith by month:
Low temperatures are most often recorded between 4 AM and 6 AM, while highs typically occur around 3 PM.
The chart below shows the average temperature throughout the year:
Temperature: Fort Smith vs the United States of America
The map below shows the annual temperature across the United States of America. You can also select individual months if you want to compare a specific time of year.
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Fort Smith vs World: Temperature Compared
Fort Smith's average annual maximum temperature is 23°C (73°F). To put that in context, here's how it compares to a few well-known destinations:
Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.
Reykjavík, Iceland averages 9°C (48°F) a year — mild summers by Icelandic standards, but cold winters and frequent wind.
New York City, USA averages 17°C (63°F) a year, with hot humid summers and cold winters that bring regular snowfall.
Tokyo, Japan averages 21°C (70°F) a year, with hot summers, cool winters, and a well-defined cherry blossom spring.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Seasonal temperature shifts influence more than just how warm it feels — they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.
Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Fort Smith this rarely lasts long on the ground.
For more on Fort Smith's weather — including monthly rainfall, sunshine hours, and humidity — visit our Fort Smith climate page.
