Fort Smith weather live forecast

Today's maximum temperature in Fort Smith is expected to be 36°C. Select a day from the live weather forecast for Fort Smith, Arkansas, USA for more weather parameters.

Saturday
22nd Aug
36

25

8

8
Sunday
23rd Aug
37

24

4

8
Monday
24th Aug
39

25

6

9
Tuesday
25th Aug
40

25

9

8
Wednesday
26th Aug
36

25

8

4

5-day weather forecast updated at 04:01 on Saturday 22nd August 2026 GMT

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The 5-day weather forecast for Arkansas (Fort Smith) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Fort Smith weather forecast by day

Below are the detailed weather forecasts for Fort Smith for the next 5 days.

Fort Smith weather for Saturday 22nd August 2026

Expect isolated thunderstorms in Fort Smith, Arkansas with a maximum temperature of 36°C, high levels of heat & humidity, maximum UV of 8 (Very High) and 8 hours of bright sunshine. There are 5-10 mm of rainfall expected with 51% chance of some rain and little or no wind of 6 kph from the east.

36
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
8
hours of sunshine
8
UV index (Very High)
51
% chance of some rain
<10
mm of rainfall expected
H
high heat & humidity
6
kph wind from E

Fort Smith weather for Sunday 23rd August 2026

Expect isolated thunderstorms in Fort Smith, Arkansas with a maximum temperature of 37°C, very high levels of heat & humidity, maximum UV of 8 (Very High) and 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 25% chance of some rain and a light breeze of 10 kph from the east.

37
°C maximum temperature
24
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
8
UV index (Very High)
25
% chance of some rain
<2
mm of rainfall expected
VH
very high heat & humidity
10
kph wind from E

Fort Smith weather for Monday 24th August 2026

Expect isolated thunderstorms in Fort Smith, Arkansas with a maximum temperature of 39°C, very high levels of heat & humidity, maximum UV of 9 (Very High) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 20% chance of some rain and a light breeze of 12 kph from the east.

39
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
9
UV index (Very High)
20
% chance of some rain
<2
mm of rainfall expected
VH
very high heat & humidity
12
kph wind from E

Fort Smith weather for Tuesday 25th August 2026

Expect isolated thunderstorms in Fort Smith, Arkansas with a maximum temperature of 40°C, very high levels of heat & humidity, maximum UV of 8 (Very High) and 9 hours of bright sunshine. There are 0-2 mm of rainfall expected with 8% chance of some rain and a light breeze of 11 kph from the east.

40
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
9
hours of sunshine
8
UV index (Very High)
8
% chance of some rain
<2
mm of rainfall expected
VH
very high heat & humidity
11
kph wind from E

Fort Smith weather for Wednesday 26th August 2026

Expect isolated thunderstorms in Fort Smith, Arkansas with a maximum temperature of 36°C, very high levels of heat & humidity, maximum UV of 4 (Moderate) and 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 27% chance of some rain and a light breeze of 7 kph from the east.