The weather in Siloam Springs in August is hot. The average temperatures are between 20°C and 32°C.
You can expect rain for roughly half of the month of August in Siloam Springs. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Siloam Springs in August 2025.
If you’re planning to visit Siloam Springs in the near future, we highly recommend that you review the 14 day weather forecast for Siloam Springs before you arrive.