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

Dangerous Heat Wave Continues; Areas of Severe Thunderstorms Today

Dangerous, record-breaking heat will continue across most of the central and eastern U.S through Friday then focusing on the eastern U.S. through the Independence Day weekend. Peak heat indices of up to 115 degrees are possible. Strong to severe thunderstorms will be possible from the northern Plains into the Midwest and Great Lakes regions, as well as across the southern Appalachians today. Read More >

Hazardous Weather Conditions

Current conditions at

Siloam Springs, Smith Field Airport (KSLG)

Lat: 36.2°NLon: 94.48°WElev: 1194ft.

Fair

85°F

29°C

Humidity 68%
Wind Speed SW 13 mph
Barometer 30.08 in (1017.1 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 2 Jul 4:56 pm CDT
Extended Forecast for

Siloam Spgs Arpt AR

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. South wind around 10 mph.

    High: 90 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 72. Southeast wind 5 to 10 mph.

    Low: 72 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: Isolated showers and thunderstorms after 4pm. Mostly sunny, with a high near 90. South wind 5 to 10 mph. Chance of precipitation is 20%.

    High: 90 °F

    Mostly Sunny
    then Isolated
    T-storms

  • Friday Night

    Friday Night: Isolated showers and thunderstorms before 7pm. Partly cloudy, with a low around 73. South wind around 5 mph. Chance of precipitation is 10%.

    Low: 73 °F

    Isolated
    T-storms then
    Partly Cloudy

  • Independence Day

    Independence Day: Mostly sunny, with a high near 91. South wind 5 to 10 mph.

    High: 91 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72. South wind around 5 mph becoming calm after midnight.

    Low: 72 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 90. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 90 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71. Southeast wind around 5 mph becoming calm.

    Low: 71 °F

    Chance
    T-storms

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 90. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 90 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. South wind around 10 mph.
Tonight
A 10 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 72. Southeast wind 5 to 10 mph.
Friday
Isolated showers and thunderstorms after 4pm. Mostly sunny, with a high near 90. South wind 5 to 10 mph. Chance of precipitation is 20%.
Friday Night
Isolated showers and thunderstorms before 7pm. Partly cloudy, with a low around 73. South wind around 5 mph. Chance of precipitation is 10%.
Independence Day
Mostly sunny, with a high near 91. South wind 5 to 10 mph.
Saturday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72. South wind around 5 mph becoming calm after midnight.
Sunday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 90. Calm wind becoming southwest around 5 mph in the afternoon.
Sunday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71. Southeast wind around 5 mph becoming calm.
Monday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 90. Calm wind becoming southwest around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 71. Southeast wind around 5 mph becoming calm.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 72. Southeast wind around 5 mph becoming calm.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. Calm wind becoming south around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 73. South wind around 5 mph.
Thursday
Mostly sunny, with a high near 92.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Siloam Spgs Arpt AR
 36.21°N 94.47°W
Last Update:
5:11 pm CDT Jul 2, 2026
Forecast Valid:
5pm CDT Jul 2, 2026-6pm CDT Jul 9, 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