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Heat and Fire Weather Concerns West; Heavy Rain and Thunderstorms from Plains to mid-Atlantic

Thunderstorms and locally heavy rainfall is expected from the Central Plains to the Ohio Valley, mid-Atlantic and across the Southeast. Severe weather from the Upper Midwest to Central Plains increases on Friday. Major to Extreme HeatRisk continues across the Southern Plains to the lower Mississippi Valley late this week. Fire weather concerns for the northern Rockies and northern Plains today. Read More >

Hazardous Weather Conditions

Current conditions at

Siloam Springs, Smith Field Airport (KSLG)

Lat: 36.2°NLon: 94.48°WElev: 1194ft.

Mostly Cloudy

78°F

26°C

Humidity 71%
Wind Speed N 8 mph
Barometer 30.14 in (1019.1 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 10 Sep 10:56 am CDT
Extended Forecast for

Siloam Springs AR

  • Today

    Today: Showers likely and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 87. North wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 87 °F

    Showers
    Likely

  • Tonight

    Tonight: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 67. Northeast wind around 5 mph becoming calm. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 67 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, then gradually becoming sunny, with a high near 88. Calm wind becoming south around 5 mph in the afternoon.

    High: 88 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: Mostly clear, with a low around 68. South wind around 5 mph.

    Low: 68 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of showers before 1pm. Sunny, with a high near 93. South wind around 5 mph.

    High: 93 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 70. Southeast wind around 5 mph.

    Low: 70 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 95. South wind 5 to 10 mph.

    High: 95 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 72. Southeast wind around 5 mph.

    Low: 72 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 95. South wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 95 °F

    Sunny

Detailed Forecast

Today
Showers likely and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 87. North wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 67. Northeast wind around 5 mph becoming calm. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
Friday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, then gradually becoming sunny, with a high near 88. Calm wind becoming south around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 68. South wind around 5 mph.
Saturday
A 20 percent chance of showers before 1pm. Sunny, with a high near 93. South wind around 5 mph.
Saturday Night
Partly cloudy, with a low around 70. Southeast wind around 5 mph.
Sunday
Mostly sunny, with a high near 95. South wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 72. Southeast wind around 5 mph.
Monday
Sunny, with a high near 95. South wind 10 to 15 mph, with gusts as high as 20 mph.
Monday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 71. South wind 5 to 10 mph.
Tuesday
A 40 percent chance of showers and thunderstorms. Sunny, with a high near 94. Southwest wind 5 to 10 mph.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68. Southeast wind around 5 mph.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91. South wind around 5 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Siloam Springs AR
 36.19°N 94.53°W
Last Update:
8:50 am CDT Sep 10, 2026
Forecast Valid:
11am CDT Sep 10, 2026-6pm CDT Sep 16, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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