Heavy Rainfall Continues in Hawaii; Severe Thunderstorms and Heavy Rainfall in the Plains and Southern Appalachians

Areas of gusty winds, heavy rain leading to flash flooding, and high surf continue across portions of Hawaii as Tropical Storm Lala continues to move away from the islands. Severe thunderstorms and heavy rainfall will shift into the southern Appalachians today. Strong to severe thunderstorms may produce large hail, scattered wind gusts, and heavy rain today across the northern and central Plains. Read More >

Current conditions at

Siloam Springs, Smith Field Airport (KSLG)

Lat: 36.2°NLon: 94.48°WElev: 1194ft.

Partly Cloudy with Haze

86°F

30°C

Humidity 61%
Wind Speed Calm
Barometer 30.10 in (1017.8 mb)
Dewpoint 71°F (22°C)
Visibility 5.00 mi
Heat Index91°F (33°C)
Last update 17 Aug 3:56 pm CDT
Extended Forecast for

Siloam Springs AR

Heat Advisory August 18, 01:00pm until August 19, 09:00pm
Click here for hazard details and duration
Heat Advisory
  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 95. North wind around 5 mph.

    High: 95 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 71. North wind around 5 mph becoming east after midnight.

    Low: 71 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny and hot, with a high near 102. Heat index values as high as 108. Southeast wind 5 to 10 mph becoming southwest in the afternoon.

    High: 102 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 78. South wind 5 to 10 mph.

    Low: 78 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 102. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 102 °F

    Hot

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then a slight chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 74. Northeast wind around 5 mph becoming south after midnight.  Chance of precipitation is 20%.

    Low: 74 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: Mostly sunny, with a high near 97. East wind around 5 mph becoming north in the afternoon.

    High: 97 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 70. North wind around 5 mph becoming calm  after midnight.

    Low: 70 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 97. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 97 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 95. North wind around 5 mph.
Tonight
Partly cloudy, with a low around 71. North wind around 5 mph becoming east after midnight.
Tuesday
Sunny and hot, with a high near 102. Heat index values as high as 108. Southeast wind 5 to 10 mph becoming southwest in the afternoon.
Tuesday Night
Mostly clear, with a low around 78. South wind 5 to 10 mph.
Wednesday
Sunny and hot, with a high near 102. South wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then a slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 74. Northeast wind around 5 mph becoming south after midnight. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 97. East wind around 5 mph becoming north in the afternoon.
Thursday Night
Mostly clear, with a low around 70. North wind around 5 mph becoming calm after midnight.
Friday
Sunny, with a high near 97. Calm wind becoming northeast around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 71. Northeast wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 97. Calm wind becoming northwest around 5 mph in the morning.
Saturday Night
Mostly clear, with a low around 71. East wind around 5 mph.
Sunday
Mostly sunny, with a high near 96. East wind 5 to 10 mph becoming south in the afternoon.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Siloam Springs AR
 36.19°N 94.53°W
3:50 pm CDT Aug 17, 2026
4pm CDT Aug 17, 2026-6pm CDT Aug 23, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database