August weather forecast
Siloam Springs, AR

The last leg of summer in August sees temperatures in Siloam Springs maintain the heat rhythm, just a notch lower than July. Precipitation fluctuates again, reaching 3.66" (93mm), perhaps nature's reminder of the upcoming transition to a cooler season. The lowering heat is also signaled by a slight drop in the UV Index to 6, making the weather more bearable. Winds dally at a passive speed not influencing the weather much. As summer winds down, long daylight hours still thrive, illuminating the city well into the evening.

Temperature

With the arrival of August, Siloam Springs's average high-temperature registers at a still hot 88.5°F (31.4°C), indicating a subtle variation from the previous month. The average temperature in Siloam Springs drops to a pleasant 68°F (20°C) during the night in the month of August.

Heat index

The heat index value during August is appraised at a very hot 102.2°F (39°C). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
It is important to note that the heat index values are for shaded areas and light wind scenarios. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

The months with the lowest humidity are August and October, with an average relative humidity of 71%.

Rainfall

In Siloam Springs, during August, the rain falls for 15.6 days and regularly aggregates up to 3.66" (93mm) of precipitation. In Siloam Springs, during the entire year, the rain falls for 156 days and collects up to 34.41" (874mm) of precipitation.

Snowfall

April, June through October are months without snowfall.

Daylight

In Siloam Springs, the average length of the day in August is 13h and 29min.
On the first day of August, sunrise is at 6:25 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 7:46 pm CDT.

Sunshine

With an average of 10.7h of sunshine, August has the most sunshine of the year.

UV index

In Siloam Springs, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 6 in August interprets into the following recommendations:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.