Local weather forecast

Weather in Tennessee, IL

Updated 2026-08-11 12:00 local time · ZIP codes 62374

Sunny
Now86°F

Sunny

High / Low99° / 75°
Rain chance4%
Wind10 mph
Weather alerts

Active alerts

1
Heat Advisory issued August 11 at 3:48AM CDT until August 11 at 8:00PM CDT by NWS Lincoln IL

* WHAT...Heat index values up to 105. * WHERE...Portions of central, east central, southeast, and west central Illinois. * WHEN...From noon today to 8 PM CDT this evening. * 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.

Hourly

Next hours

NowSunny86°2% rain
1 PMSunny98°1% rain
2 PMSunny99°1% rain
3 PMSunny98°1% rain
4 PMSunny98°1% rain
5 PMSunny98°1% rain
6 PMSunny96°1% rain
7 PMSunny93°2% rain
8 PMSunny88°3% rain
9 PMClear85°3% rain
10 PMClear83°4% rain
11 PMClear82°5% rain
Forecast

3-day weather forecast

Today2026-08-11
Sunny
99° 75°Sunny
Rain 4%Gust 14 mph
Tomorrow2026-08-12
Sunny
84° 72°Sunny
Rain 59%Gust 14 mph
Thursday2026-08-13
Partly Cloudy
87° 69°Partly Cloudy
Rain 71%Gust 14 mph
Conditions

Weather details

Feels like89°F
Humidity79%
Pressure29.93 inHg
Visibility10 mi
Wind10 mph W
Wind gusts15 mph
Precipitation0.00 in
UV index5
Daylight

Sunrise, sunset and moon

Sunrise06:10 AM
Sunset08:07 PM
Moonrise04:12 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 89°F with winds near 10 mph.

Best window: 12 PM

86°F, 2% rain chance and 10 mph wind.

Allow a little extra driving time

Visibility is around 10 mi; gusts may reach 24 mph.

Running conditions are less comfortable

Current temperature is 86°F, wind 10 mph, rain chance up to 5%.

Moderate UV protection recommended

UV index is 5. Sunscreen and sunglasses are sensible for longer outdoor time.

Tennessee weather today

Sunny and 86°F in Tennessee, IL. Today's high is 99°F with a 4% rain chance. Winds are around 10 mph with gusts near 15 mph. Relative humidity is 79%, pressure is 29.93 inHg, and visibility is about 10 miles.

Tonight and tomorrow in Tennessee

Sunrise is at 06:10 AM and sunset is at 08:07 PM. Tomorrow's forecast calls for Sunny with a high near 84°F and a low near 72°F. The maximum rain chance is 59%.

Nearby

Weather near Tennessee

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