Fort Smith weather by month
Average highs run from 51°F in January to 94°F in July, and January nights average 30°F. It gets 47 inches of rain and melted snow a year and 3 inches of snow. Expect about 78 days a year at 90°F or hotter. Nights drop below freezing about 63 times a year. The most comfortable months are October.
Best time to visit Fort Smith
For comfortable weather, go in October. In those months the average high stays between 62°F and 86°F, nights average 42°F or warmer, and rain stays under 4.5 inches for the month.
Month by month
| Month | High | Low | Precip. | Snow | Wet days | Days 90°F+ | Nights below 32°F | Feels |
|---|---|---|---|---|---|---|---|---|
| January | 51°F | 30°F | 2.9 in | 1.4 in | 5 | 0 | 20 | cool |
| February | 57°F | 33°F | 2.7 in | 0.6 in | 5 | 0 | 13 | cool |
| March | 66°F | 42°F | 3.9 in | 0.3 in | 6 | 0 | 5 | mild days, chilly nights |
| April | 75°F | 50°F | 4.9 in | 0.0 in | 7 | 0 | 1 | mild |
| May | 81°F | 60°F | 5.6 in | 0.0 in | 7 | 3 | 0 | warm |
| June | 89°F | 68°F | 4.6 in | 0.0 in | 6 | 15 | 0 | hot |
| July | 94°F | 72°F | 3.4 in | 0.0 in | 5 | 24 | 0 | hot |
| August | 94°F | 71°F | 3.6 in | 0.0 in | 5 | 23 | 0 | hot |
| September | 87°F | 63°F | 4.0 in | 0.0 in | 5 | 11 | 0 | warm |
| October | 76°F | 51°F | 4.4 in | 0.0 in | 5 | 1 | 0 | mild |
| November | 63°F | 40°F | 3.9 in | 0.0 in | 5 | 0 | 7 | mild days, chilly nights |
| December | 53°F | 32°F | 3.5 in | 0.6 in | 5 | 0 | 16 | cool |
| Year | 74°F avg | 51°F avg | 47.3 in | 2.9 in | 66 | 78 | 63 |
"Wet days" are days with at least 0.1 inch of precipitation. "Feels" is a plain-language label for the average high. Normals for 1991-2020 from NOAA NCEI, station Fort Smith Regional Airport, AR (USW00013964), 4.2 miles from the city center. Averages describe typical conditions, not a forecast.
Sunrise, sunset and daylight in Fort Smith
The shortest day is December 21, with 9h 46m of daylight; the longest is June 21, with 14h 33m. The earliest sunset comes around November 30 (5:04 pm) and the latest around June 23 (8:36 pm). The sun sets after 8 pm on 116 days a year.
| On the 15th of | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:26 am | 5:28 pm | 10h 02m |
| February | 7:04 am | 5:59 pm | 10h 56m |
| March | 7:28 am | 7:25 pm | 11h 57m |
| April | 6:45 am | 7:50 pm | 13h 05m |
| May | 6:13 am | 8:15 pm | 14h 02m |
| June | 6:02 am | 8:34 pm | 14h 32m |
| July | 6:14 am | 8:32 pm | 14h 18m |
| August | 6:37 am | 8:06 pm | 13h 29m |
| September | 7:00 am | 7:24 pm | 12h 24m |
| October | 7:24 am | 6:41 pm | 11h 18m |
| November | 6:53 am | 5:10 pm | 10h 18m |
| December | 7:19 am | 5:06 pm | 9h 47m |
Calculated for 2026 at the center of Fort Smith with NOAA's solar equations, in local clock time (Central Time, including daylight saving time where it applies). Times shift by a minute or two from year to year.
Is Fort Smith getting warmer?
The last 10 years averaged 1.9°F warmer than the 20th century. See the climate stripes for Fort Smith.Frequently asked questions
What is the warmest month in Fort Smith?
July is the warmest month, with an average high of 94°F and an average low of 72°F (NOAA 1991-2020 normals).
What is the coldest month in Fort Smith?
January is the coldest, with average lows of 30°F and highs of 51°F.
What is the rainiest month in Fort Smith?
May gets the most precipitation, 5.6 inches on average. February is the driest at 2.7 inches.
Does it snow in Fort Smith?
Yes. Fort Smith averages 3 inches of snow a year.
When is the best time to visit Fort Smith?
For comfortable weather, October. Those months average highs between 62 and 86°F with lows of 42°F or more and modest rain.
Thinking of moving to Fort Smith?
See what homes, rent and everyday prices cost, who lives there and how it compares with nearby cities on the full Fort Smith profile.
Compare the weather: Fort Smith vs Fayetteville, Fort Smith vs Springdale, Fort Smith vs Rogers, Fort Smith vs Bentonville.