7-Day Outlook: Heat Advisory for Hillsboro Area

Hillsboro, Missouri — The next seven days bring highs ranging from 83°F to 97°F, lows from 62°F to 75°F, rain chances focused on Today and Friday. Today's forecast is still included below, but the main story is the week ahead.

⚠️ Active Weather Alerts

• 🟡 Heat Advisory: Heat Advisory issued July 19 at 2:23AM CDT until July 21 at 7:00PM CDT by NWS St Louis MO
• Drink plenty of fluids, stay in an air-conditioned room, stay out of
  the sun, and check up on relatives and neighbors. Young children and
  pets should never be left unattended in vehicles under any
  circumstances. Take extra precautions if you work or spend time
  outside. When possible reschedule stren

What Matters Most This Week

• Warmest day: Tuesday, with a high near 97°F.
• Coolest morning: Saturday, with a low near 62°F.
• Rain chances: Best chances on Today and Friday; seven-day expected rainfall totals about 4.47 inches.
• Storm watch: Thunderstorm chances appear in the forecast on Today, Monday, Friday and Saturday.
• Windiest stretch: Friday, with gusts up to 26 mph.
• Sun safety: UV runs high on Today, Monday, Tuesday and Wednesday and other days.

7-Day Forecast

Today's Details — Sunday, July 19

• Conditions: Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
• High / Low: 90°F / 70°F
• Wind: W 6 mph, gusts to 16 mph
• Precipitation: 52% chance, 3.97 inches expected over 1 hours
• UV Index: 7.85 — Very High — limit outdoor exposure
• Sunrise / Sunset: 05:54 / 20:22
• Daylight: 14.5 hours (8.3 hours of sunshine expected)

What Matters Most Today

• Expected rainfall: about 3.97 inches.
• Sun safety: UV index reaches 7.85; sunscreen still matters even with cloud cover.
• Best outdoor window: Morning (lowest average rain risk).

Comfort & Conditions

• Humidity: 74%
• Dew Point: Up to 77°F — muggy conditions
• Visibility: As low as 0.8 miles

Hour-by-Hour Breakdown

• Morning (6AM–Noon): Clear sky, 81°F, 77% humidity
• Afternoon (Noon–6PM): Overcast, 87°F, 38% chance of precipitation, 66% humidity
• Evening (6PM–Midnight): Clear sky, 80°F, 32% chance of precipitation, 85% humidity

Air Quality & Allergens

• Air Quality Index: 66 (peak 106) — Unhealthy for Sensitive Groups
• People with respiratory conditions should limit prolonged outdoor exertion.
• PM2.5: 12.3 µg/m³

Forecast data provided by Open-Meteo. Air quality data from Open-Meteo Air Quality API. For severe weather alerts, visit your local National Weather Service office.