Local weather forecast

Weather in Sparta, IL

Updated 2026-08-11 10:15 local time · ZIP codes 62286

Sunny
Now85°F

Sunny

High / Low98° / 75°
Rain chance4%
Wind11 mph
Weather alerts

Active alerts

2
Extreme Heat Warning issued August 11 at 12:53AM CDT until August 13 at 8:00PM CDT by NWS Paducah KY

* WHAT...Dangerously hot conditions with peak heat index values up to 113 degrees. * WHERE...Perry IL County. * WHEN...Until 8 PM CDT Thursday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...Daily heat index values will remain elevated in the triple digits through next weekend.

Safety instructions

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

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

* WHAT...Dangerously hot conditions with heat index values up to 111. * WHERE...Portions of south central and southwest Illinois and central and east central Missouri. * WHEN...Until 8 PM CDT Wednesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

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. People in the Saint Louis Metropolitan Area can get information about cooling centers or energy assistance related to the excessive heat by calling the United Way of Greater Saint Louis at 800-427-4626, or if calling from a land line phone dial 2-1-1. You can also call Cool Down Saint Louis at 314-241-7668.

Hourly

Next hours

NowSunny85°5% rain
11 AMSunny93°4% rain
12 PMSunny96°3% rain
1 PMSunny97°2% rain
2 PMSunny98°2% rain
3 PMSunny98°1% rain
4 PMSunny97°1% rain
5 PMSunny96°1% rain
6 PMSunny93°1% rain
7 PMSunny89°3% rain
8 PMClear84°5% rain
9 PMClear82°5% rain
Forecast

3-day weather forecast

Today2026-08-11
Sunny
98° 75°Sunny
Rain 4%Gust 14 mph
Tomorrow2026-08-12
Sunny
99° 77°Sunny
Rain 17%Gust 10 mph
Thursday2026-08-13
Sunny
103° 74°Sunny
Rain 57%Gust 11 mph
Conditions

Weather details

Feels like92°F
Humidity67%
Pressure29.98 inHg
Visibility6 mi
Wind11 mph SW
Wind gusts14 mph
Precipitation0.00 in
UV index4
Daylight

Sunrise, sunset and moon

Sunrise06:10 AM
Sunset07:57 PM
Moonrise04:14 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 5%).

Choose light, breathable clothing

It feels like 92°F with winds near 11 mph.

Best window: 8 PM

84°F, 5% rain chance and 9 mph wind.

Allow a little extra driving time

Visibility is around 6 mi; gusts may reach 25 mph.

Running conditions are less comfortable

Current temperature is 85°F, wind 11 mph, rain chance up to 5%.

Moderate UV protection recommended

UV index is 4. Sunscreen and sunglasses are sensible for longer outdoor time.

Sparta weather today

Sunny and 85°F in Sparta, IL. Today's high is 98°F with a 4% rain chance. Winds are around 11 mph with gusts near 14 mph. Relative humidity is 67%, pressure is 29.98 inHg, and visibility is about 6 miles.

Tonight and tomorrow in Sparta

Sunrise is at 06:10 AM and sunset is at 07:57 PM. Tomorrow's forecast calls for Sunny with a high near 99°F and a low near 77°F. The maximum rain chance is 17%.

Nearby

Weather near Sparta

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