Fort Smith Climate by Month
Fort Smith, Arkansas, United States
Hot summers and cold winters, with rain spread through the year.
Fort Smith has hot summers and cold winters, with rain spread through the year. Expect highs of 95°F (35°C) in July and 52°F (11°C) in January, with the coldest nights (January) near 29°F (-1°C). It gets 48 in (1220 mm) of rain a year, spread across the months.
- Warmest month
- 95°F(35°C)
- Average high, July
- Coldest nights
- 29°F(-1°C)
- Average low, January
- Rain per year
- 48 in(1220 mm)
- No clear rainy season
- Humidity
- 66%
- Sunniest: July
Best and worst months in Fort Smith
Best for weatherThe most comfortable weather comes in April and October, with highs around 76°F (25°C) and about 4.4 in (113 mm) of rain a month.
Least pleasantDecember and January are the least pleasant; January is the coldest, with highs of only 52°F (11°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in April.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Fort Smith weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 52°F(11°C) | 29°F(-1°C) | 3.0 in(76 mm) | 70% | 2.2 |
| FebFebruary | 57°F(14°C) | 34°F(1°C) | 2.8 in(70 mm) | 67% | 3.0 |
| MarMarch | 67°F(19°C) | 42°F(6°C) | 4.7 in(120 mm) | 63% | 4.0 |
| AprAprilBest | 76°F(24°C) | 50°F(10°C) | 4.7 in(119 mm) | 62% | 5.0 |
| MayMay | 83°F(28°C) | 60°F(16°C) | 5.8 in(148 mm) | 69% | 5.5 |
| JunJune | 90°F(32°C) | 68°F(20°C) | 3.8 in(96 mm) | 68% | 6.0 |
| JulJuly | 95°F(35°C) | 72°F(22°C) | 3.3 in(85 mm) | 64% | 6.4 |
| AugAugust | 95°F(35°C) | 70°F(21°C) | 3.3 in(85 mm) | 63% | 6.0 |
| SepSeptember | 87°F(31°C) | 63°F(17°C) | 4.4 in(112 mm) | 64% | 5.0 |
| OctOctoberBest | 77°F(25°C) | 51°F(11°C) | 4.2 in(106 mm) | 64% | 3.6 |
| NovNovember | 64°F(18°C) | 40°F(4°C) | 4.2 in(106 mm) | 69% | 2.5 |
| DecDecember | 54°F(12°C) | 32°F(0°C) | 3.8 in(97 mm) | 64% | 2.1 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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