15-Day Weather Forecast - Dayton
15-day weather forecast for Dayton: temperatures from 12°C (54°F) to 34°C (93°F). Average daily high 26°C (79°F) over the next 15 days.
Hourly Forecast by Day
15-Day Temperature Trend
15-Day Weather Forecast
Updated just nowWeather Insight
Dayton's 15-day outlook ranges from a low of 12°C to a high of 34°C, with an average daytime high near 25°C. That's 1° below the long-term average high of 26°C for this time of year. It continues a recent pattern — 12 of the last 28 days with published data have run cooler than normal. Air quality is currently good (AQI 29), with no notable outdoor health concerns.
Today vs Normal
The long-term average high for today is 26°C.
12 of the last 28 days with published data ran above normal.
That's a break from the pattern - today's forecast runs above normal even though the recent stretch mostly ran below.
Red = above normal, blue = at or below · last 12 days
Air Quality
Air quality is considered satisfactory, and air pollution poses little or no risk. It’s a good day to be active outside.
Extended Outlook for Dayton
Over the next 15 days, Dayton is forecast to see temperatures ranging from 11°C to 34°C, averaging a daily high of 25°C. The extended outlook indicates significant rainfall totalling 38.8 mm spread across 10 days. Conditions are suitable for most outdoor activities; carry an umbrella on days with showers.