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

Dangerous Heat Continues; Monitoring Excessive Rainfall and Flash Flooding

The heat continues along and east of the Mississippi River. The most significant cumulative heat impacts are expected across the Mid-Atlantic through today and eastern Ohio Valley through Friday. Severe weather and heavy rainfall potential from the Southwest, Plains, upper Midwest, Great Lakes, mid-Atlantic and Northeast the next couple of days. A disturbance near the Marianas may bring flooding. Read More >

Hazardous Weather Conditions

Current conditions at

Siloam Springs, Smith Field Airport (KSLG)

Lat: 36.2°NLon: 94.48°WElev: 1194ft.

Mostly Cloudy

88°F

31°C

Humidity 57%
Wind Speed S 13 mph
Barometer 30.01 in (1014.8 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 26 Jun 4:56 pm CDT
Extended Forecast for

Siloam Springs AR

  • Tonight

    Tonight: Partly cloudy, with a low around 71. South wind 5 to 10 mph.

    Low: 71 °F

    Partly Cloudy

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms, mainly after 10am. Partly sunny, with a high near 87. Southwest wind 5 to 10 mph.

    High: 87 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 71. South wind around 5 mph.

    Low: 71 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 89. South wind 5 to 10 mph.

    High: 89 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 72. South wind around 5 mph.

    Low: 72 °F

    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 91. Southwest wind 5 to 10 mph.

    High: 91 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71. South wind around 5 mph.

    Low: 71 °F

    Partly Cloudy
    then Chance
    T-storms

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. Southwest wind around 5 mph.

    High: 88 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 69. Southwest wind around 5 mph becoming calm.

    Low: 69 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Partly cloudy, with a low around 71. South wind 5 to 10 mph.
Friday
A 40 percent chance of showers and thunderstorms, mainly after 10am. Partly sunny, with a high near 87. Southwest wind 5 to 10 mph.
Friday Night
Mostly cloudy, with a low around 71. South wind around 5 mph.
Saturday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 89. South wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around 72. South wind around 5 mph.
Sunday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 91. Southwest wind 5 to 10 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71. South wind around 5 mph.
Monday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. Southwest wind around 5 mph.
Monday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 69. Southwest wind around 5 mph becoming calm.
Tuesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. Calm wind becoming northeast around 5 mph in the afternoon.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Northeast wind around 5 mph becoming calm.
Wednesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. Calm wind becoming south around 5 mph in the afternoon.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69. South wind around 5 mph becoming calm.
Thursday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89. South wind around 5 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:
1:50 pm CDT Jun 26, 2025
Forecast Valid:
5pm CDT Jun 26, 2025-6pm CDT Jul 3, 2025
 
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