National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Severe Weather and Heavy Rainfall from the Midwest to the Ohio Valley; Mid-Summer Heat Continues

Severe thunderstorm and heavy rainfall threats will persist from the Midwest to Lower Great Lakes through Monday, shifting into the Ohio Valley and Central Appalachians Monday evening into Tuesday. Mid-summer heat will continue across much of the CONUS this week, with record highs possible well into the 100s across the south-central High Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Siloam Springs, Smith Field Airport (KSLG)

Lat: 36.2°NLon: 94.48°WElev: 1194ft.

Fair

79°F

26°C

Humidity 74%
Wind Speed S 8 mph
Barometer 30.05 in (1015.9 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 10 Aug 12:56 am CDT
Extended Forecast for

Siloam Springs AR

Heat Advisory August 10, 12:00pm until August 10, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: Mostly clear, with a low around 74. South wind around 5 mph.

    Low: 74 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 97. Heat index values as high as 104. South wind 5 to 10 mph.

    High: 97 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 74. South wind 5 to 10 mph.

    Low: 74 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 97. Heat index values as high as 104. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 97 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 76. South wind 5 to 10 mph.

    Low: 76 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 98. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 98 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 77. South wind 5 to 10 mph.

    Low: 77 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 98. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 98 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 76. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 76 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 74. South wind around 5 mph.
Monday
Sunny, with a high near 97. Heat index values as high as 104. South wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 74. South wind 5 to 10 mph.
Tuesday
Sunny, with a high near 97. Heat index values as high as 104. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 76. South wind 5 to 10 mph.
Wednesday
Sunny, with a high near 98. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 77. South wind 5 to 10 mph.
Thursday
Mostly sunny, with a high near 98. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 76. South wind 5 to 10 mph, with gusts as high as 20 mph.
Friday
Sunny, with a high near 97. South wind 10 to 15 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 75. South wind 5 to 10 mph.
Saturday
Sunny, with a high near 97. Southwest wind around 10 mph, with gusts as high as 20 mph.
Saturday Night
Mostly clear, with a low around 75. South wind 5 to 10 mph.
Sunday
Mostly sunny, with a high near 97. Southwest wind 5 to 10 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Siloam Springs AR
 36.19°N 94.53°W
Last Update:
12:50 am CDT Aug 10, 2026
Forecast Valid:
1am CDT Aug 10, 2026-6pm CDT Aug 16, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation