Local weather forecast

Weather in Hazelwood, MO

Updated 2026-08-11 11:15 local time · ZIP codes 63042

Partly cloudy
Now88°F

Partly cloudy

High / Low104° / 77°
Rain chance3%
Wind13 mph
Weather alerts

Active alerts

1
Heat Advisory issued August 11 at 2:17AM CDT until August 12 at 8:00PM CDT by NWS St Louis MO

* WHAT...Heat index values up to 106. * WHERE...Portions of south central, southwest, and west central Illinois and central, east central, northeast, and southeast Missouri. * WHEN...Until 8 PM CDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Safety instructions

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 strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.

Hourly

Next hours

NowPartly cloudy88°2% rain
12 PMSunny100°1% rain
1 PMSunny102°1% rain
2 PMSunny103°1% rain
3 PMSunny104°1% rain
4 PMSunny104°1% rain
5 PMSunny102°1% rain
6 PMSunny100°1% rain
7 PMSunny97°1% rain
8 PMSunny93°1% rain
9 PMClear90°1% rain
10 PMClear88°1% rain
Forecast

3-day weather forecast

Today2026-08-11
Sunny
104° 77°Sunny
Rain 3%Gust 13 mph
Tomorrow2026-08-12
Sunny
98° 84°Sunny
Rain 17%Gust 11 mph
Thursday2026-08-13
Sunny
104° 76°Sunny
Rain 36%Gust 13 mph
Conditions

Weather details

Feels like93°F
Humidity59%
Pressure29.98 inHg
Visibility10 mi
Wind13 mph WSW
Wind gusts14 mph
Precipitation0.00 in
UV index6
Daylight

Sunrise, sunset and moon

Sunrise06:11 AM
Sunset08:01 PM
Moonrise04:15 AM
Moon phaseNew Moon
Practical guide

Weather insights for today

Umbrella not essential

Rain chance stays relatively low over the next 12 hours (up to 2%).

Choose light, breathable clothing

It feels like 93°F with winds near 13 mph.

Best window: 11 AM

88°F, 2% rain chance and 13 mph wind.

Driving conditions look generally normal

Visibility is around 10 mi; gusts may reach 16 mph.

Running conditions are less comfortable

Current temperature is 88°F, wind 13 mph, rain chance up to 2%.

Moderate UV protection recommended

UV index is 6. Sunscreen and sunglasses are sensible for longer outdoor time.

Hazelwood weather today

Partly cloudy and 88°F in Hazelwood, MO. Today's high is 104°F with a 3% rain chance. Winds are around 13 mph with gusts near 14 mph. Relative humidity is 59%, pressure is 29.98 inHg, and visibility is about 10 miles.

Tonight and tomorrow in Hazelwood

Sunrise is at 06:11 AM and sunset is at 08:01 PM. Tomorrow's forecast calls for Sunny with a high near 98°F and a low near 84°F. The maximum rain chance is 17%.

Nearby

Weather near Hazelwood

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