Local weather forecast

Weather in Washington, IL

Updated 2026-08-11 11:00 local time · ZIP codes 61571

Sunny
Now82°F

Sunny

High / Low99° / 75°
Rain chance17%
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

NowSunny82°3% rain
12 PMSunny96°2% rain
1 PMSunny98°2% rain
2 PMSunny99°1% rain
3 PMSunny96°1% rain
4 PMPatchy rain nearby93°9% rain
5 PMSunny97°2% rain
6 PMPatchy rain nearby94°10% rain
7 PMPatchy rain nearby90°17% rain
8 PMSunny86°3% rain
9 PMClear85°4% rain
10 PMClear83°5% rain
Forecast

3-day weather forecast

Today2026-08-11
Sunny
99° 75°Sunny
Rain 17%Gust 11 mph
Tomorrow2026-08-12
Sunny
82° 72°Sunny
Rain 69%Gust 12 mph
Thursday2026-08-13
Mist
85° 68°Mist
Rain 83%Gust 11 mph
Conditions

Weather details

Feels like86°F
Humidity74%
Pressure29.91 inHg
Visibility10 mi
Wind10 mph NW
Wind gusts14 mph
Precipitation0.00 in
UV index1
Daylight

Sunrise, sunset and moon

Sunrise06:04 AM
Sunset08:01 PM
Moonrise04:04 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 17%).

Choose light, breathable clothing

It feels like 86°F with winds near 10 mph.

Best window: 11 AM

82°F, 3% rain chance and 10 mph wind.

Allow a little extra driving time

Visibility is around 10 mi; gusts may reach 14 mph.

Run with a few weather adjustments

Current temperature is 82°F, wind 10 mph, rain chance up to 17%.

Low UV protection needs

UV index is 1.

Washington weather today

Sunny and 82°F in Washington, IL. Today's high is 99°F with a 17% rain chance. Winds are around 10 mph with gusts near 14 mph. Relative humidity is 74%, pressure is 29.91 inHg, and visibility is about 10 miles.

Tonight and tomorrow in Washington

Sunrise is at 06:04 AM and sunset is at 08:01 PM. Tomorrow's forecast calls for Sunny with a high near 82°F and a low near 72°F. The maximum rain chance is 69%.

Nearby

Weather near Washington

Illinois

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