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7-Day Outlook: Best Rain Chance Arrives Thursday in Hillsboro
September 11, 2026
weather, forecast
Hillsboro, Missouri — The next seven days bring highs ranging from 82°F to 92°F, lows from 65°F to 74°F, rain chances focused on Wednesday and Thursday.
What Matters Most This Week
- Warmest day: Tuesday, with a high near 92°F.
- Coolest morning: Sunday, with a low near 65°F.
- Rain chances: NWS indicates the best chances on Wednesday and Thursday.
- Storm watch: Thunderstorm chances appear in the forecast on Sunday and Tuesday.
- Windiest stretch: Saturday, with gusts up to 29 mph.
- Sun safety: UV runs high on Saturday, Sunday and Tuesday.
7-Day Forecast
| Day | Conditions | High / Low | Rain | Peak Gust |
|---|---|---|---|---|
| Today 9/11 | Chance Rain Showers | 82° / 66° | 30% | 11 mph |
| Saturday 9/12 | Mostly Sunny | 90° / 67° | 9% | 29 mph |
| Sunday 9/13 | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 90° / 65° | 22% | 24 mph |
| Monday 9/14 | Sunny | 90° / 69° | 6% | 25 mph |
| Tuesday 9/15 | Sunny then Chance Showers And Thunderstorms | 92° / 66° | 29% | 26 mph |
| Wednesday 9/16 | Chance Rain Showers | 88° / 65° | 45% | 14 mph |
| Thursday 9/17 | Chance Rain Showers | 82° / 74° | 53% | 18 mph |
Today's Details — Friday, September 11
- Conditions: Chance Rain Showers
- High / Low: 82°F / 66°F
- Wind: ESE 8 mph, gusts to 11 mph
- Precipitation: 30% chance (National Weather Service forecast)
- UV Index: 4.0 — Moderate
- Sunrise / Sunset: 06:40 / 19:16
- Daylight: 12.6 hours (2.9 hours of sunshine expected)
What Matters Most Today
- Sky cover: mostly cloudy (88% average cloud cover), but low rain risk.
- Best outdoor window: Morning (lowest average rain risk).
Comfort & Conditions
- Humidity: 84%
- Dew Point: Up to 71°F — muggy conditions
- Visibility: As low as 0.4 miles
Hour-by-Hour Breakdown
- Morning (6AM–Noon): Overcast, 70°F, 92% humidity
- Afternoon (Noon–6PM): Overcast, 80°F, 20% chance of precipitation, 73% humidity
- Evening (6PM–Midnight): Overcast, 75°F, 91% humidity
Air Quality & Allergens
- Air Quality Index: 50 (peak 51) — Moderate
- Acceptable air quality; some pollutants may be a concern for sensitive individuals.
- PM2.5: 12.1 µg/m³
Temperatures, conditions, and precipitation chances use National Weather Service forecast guidance. Open-Meteo supplies supplemental wind, UV, humidity, and air-quality fields; its precipitation totals are not used. For weather alerts, visit your local National Weather Service office.
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