Annual mean 17°C · wettest around April · prevailing wind S
Warmest
31.7 °C
Coldest
6.0 °C
Wettest
57%
Windiest
4.8 m/s
Prevailing
S
3.6 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Fort Smith over the whole year is 17°C. July is the hottest month, with highs of about 31°C; January is the coldest, with lows of about 1°C. Fort Smith has no sharply defined rainy season: the chance of rain on a given day runs from 53% in January, the driest month, to 56% in April, the wettest. Winds in Fort Smith are highest in March, averaging 3.3 m/s (12 km/h), and lightest in September, at 1.8 m/s (6 km/h). The prevailing wind is from the S. The clearest skies in Fort Smith come in July, when the sky is typically 21% covered; February is the cloudiest month, at 45%.
Month by month Fort Smith climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
7°C
1°C
2°C
53%
40%
2.8 m/s
5
0
28
February
10°C
3°C
6°C
55%
45%
3.0 m/s
17
0
43
March
16°C
8°C
12°C
55%
40%
3.3 m/s
36
2
66
April
20°C
11°C
16°C
56%
40%
3.2 m/s
57
10
66
May
24°C
17°C
24°C
56%
37%
2.5 m/s
59
42
38
June
30°C
22°C
31°C
55%
24%
2.1 m/s
20
55
5
July
31°C
23°C
34°C
55%
21%
2.0 m/s
7
37
1
August
31°C
22°C
33°C
54%
24%
1.9 m/s
13
45
2
September
29°C
18°C
29°C
53%
23%
1.8 m/s
34
57
14
October
22°C
12°C
20°C
54%
31%
2.3 m/s
56
30
49
November
15°C
6°C
12°C
53%
34%
2.6 m/s
35
3
63
December
10°C
4°C
6°C
54%
39%
2.6 m/s
12
0
44
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Fort Smith weather by season
Year round, Fort Smith has days of about 7°C at their warmest in January, its coolest month, and 31°C in July, its warmest; the coolest hours of the day run from 1°C to 23°C through the year, and the average temperature over the year is 17°C around the clock. Rain is most likely around April and least likely around January. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Fort Smith weather in winterDecember to February
High 9°CLow 3°CRain 54%
Winter in Fort Smith has typical daily highs of about 9°C and lows of about 3°C, with a 54% chance of rain on a given day.
Fort Smith weather in springMarch to May
High 20°CLow 12°CRain 56%
Spring in Fort Smith has typical daily highs of about 20°C and lows of about 12°C, with a 56% chance of rain on a given day.
Fort Smith weather in summerJune to August
High 30°CLow 22°CRain 55%
Summer in Fort Smith has typical daily highs of about 30°C and lows of about 22°C, with a 55% chance of rain on a given day.
Fort Smith weather in autumnSeptember to November
High 22°CLow 12°CRain 53%
Autumn in Fort Smith has typical daily highs of about 22°C and lows of about 12°C, with a 53% chance of rain on a given day.
When is the rainy season in Fort Smith?
Fort Smith has no sharply defined rainy season: the chance of rain on a given day runs from 53% in January, the driest month, to 56% in April, the wettest.
What time of year is Fort Smith windiest?
Winds in Fort Smith are highest in March, averaging 3.3 m/s (12 km/h), and lightest in September, at 1.8 m/s (6 km/h). The prevailing wind is from the S.
What is the average temperature in Fort Smith year round?
The average temperature in Fort Smith over the whole year is 17°C. July is the hottest month, with highs of about 31°C; January is the coldest, with lows of about 1°C.