Current Conditions

Washington, Illinois

90°F32°C
Drizzle

Feels like98°F36°C

Wind

SSW 5 mph8 km/h

Humidity

58%

Cloud Cover

32%

As of Wednesday, September 2, 2026 at 7:47 PM CDT

Today's Outlook

Night

Mostly clear, with a low around 79°F26°C. Breezy from the SSW at 6 to 8 mph10 to 13 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
DrizzleHigh 95°F35°CFeels 102°F39°CLow 76°F25°CPrecip 0 in0.1 mm13%Cloud 14%Wind SSW 7 mph11 km/hThursday: Mostly clear and hot, with a high of 95°F35°C and morning low of 76°F25°C — feels like 102°F39°C. Breezy from the SW at 7 to 8 mph11 to 13 km/h. 13% chance of drizzle in the afternoon. Heat risk in the afternoon. Thursday Night: Mostly clear, with a low around 79°F26°C. Breezy from the SSW at 6 to 8 mph10 to 13 km/h.
HotHigh 96°F35°CFeels 102°F39°CLow 75°F24°CPrecip 0 in0.1 mm6%Cloud 20%Wind SW 6 mph9 km/hFriday: Mostly clear and hot, with a high of 96°F35°C and morning low of 75°F24°C — feels like 102°F39°C. Light wind from the SW around 6 mph9 km/h. Heat risk in the afternoon. Friday Night: Mostly clear, with a low around 77°F25°C. Breezy from the SSW at 5 to 7 mph9 to 11 km/h.
DrizzleHigh 91°F33°CFeels 100°F38°CLow 75°F24°CPrecip 0.05 in1.2 mm37%Cloud 41%Wind ENE 5 mph9 km/hSaturday: Partly cloudy and hot, with a high of 91°F33°C and morning low of 75°F24°C — feels like 100°F38°C. Light wind from the NE around 5 mph8 km/h. 37% chance of drizzle throughout the day. Heat risk in the afternoon. Saturday Night: Partly cloudy, with a low around 77°F25°C. Breezy from the ENE at 6 to 8 mph9 to 13 km/h. 20% chance of drizzle in the evening.
Partly CloudyHigh 86°F30°CLow 70°F21°CPrecip 0.05 in1.3 mm9%Cloud 60%Wind E 7 mph11 km/hSunday: Mostly cloudy and warm, with a high of 86°F30°C and morning low of 70°F21°C. Breezy from the E at 7 mph11 km/h. Humid. Sunday Night: Mostly cloudy, with a low around 72°F22°C. Breezy from the E at 6 to 7 mph10 to 11 km/h.
Partly CloudyHigh 85°F30°CLow 67°F20°CPrecip 0.02 in0.5 mm7%Cloud 50%Wind ESE 6 mph10 km/hMonday: Mostly cloudy and warm, with a high of 85°F30°C and morning low of 67°F20°C. Breezy from the ESE at 6 to 7 mph10 to 11 km/h. Monday Night: Mostly cloudy, with a low around 69°F21°C. Breezy from the ESE at 6 to 7 mph10 to 12 km/h.
HotHigh 93°F34°CFeels 97°F36°CLow 69°F21°CPrecip 0 in0.1 mm2%Cloud 40%Wind SSE 8 mph13 km/hTuesday: Partly cloudy and hot, with a high of 93°F34°C and morning low of 69°F21°C. Breezy from the S at 8 to 9 mph14 to 15 km/h. Heat risk in the afternoon. Tuesday Night: Partly cloudy, with a low around 70°F21°C. Breezy from the SSE at 8 to 9 mph13 to 15 km/h.
HotHigh 93°F34°CFeels 100°F38°CLow 77°F25°CPrecip 0.03 in0.7 mm9%Cloud 32%Wind SSW 10 mph15 km/hWednesday: Partly cloudy and hot, with a high of 93°F34°C and morning low of 77°F25°C — feels like 100°F38°C. Breezy from the SW at 10 to 11 mph16 to 17 km/h. Heat risk in the afternoon. Wednesday Night: Partly cloudy, with a low around 78°F26°C. Breezy from the SSW at 9 to 11 mph15 to 17 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
ThursdaySep 395°F35°C
Feels 102°F39°C
76°F25°C0 in0.1 mm· 13%14%DrizzleSSW 7 mph11 km/h
FridaySep 496°F35°C
Feels 102°F39°C
75°F24°C0 in0.1 mm· 6%20%HotSW 6 mph9 km/h
SaturdaySep 591°F33°C
Feels 100°F38°C
75°F24°C0.05 in1.2 mm· 37%41%DrizzleENE 5 mph9 km/h
SundaySep 686°F30°C70°F21°C0.05 in1.3 mm· 9%60%Partly CloudyE 7 mph11 km/h
MondaySep 785°F30°C67°F20°C0.02 in0.5 mm· 7%50%Partly CloudyESE 6 mph10 km/h
TuesdaySep 893°F34°C
Feels 97°F36°C
69°F21°C0 in0.1 mm· 2%40%HotSSE 8 mph13 km/h
WednesdaySep 993°F34°C
Feels 100°F38°C
77°F25°C0.03 in0.7 mm· 9%32%HotSSW 10 mph15 km/h
ThursdaySep 1087°F30°C
Feels 90°F32°C
74°F23°C0.17 in4.2 mm· 29%49%ShowersSW 8 mph14 km/h
FridaySep 1184°F29°C68°F20°C0.16 in4 mm· 17%46%ShowersSW 7 mph12 km/h
SaturdaySep 1282°F28°C66°F19°C0.15 in3.7 mm· 20%50%ShowersS 8 mph13 km/h
SundaySep 1383°F28°C66°F19°C0.17 in4.4 mm· 20%53%ShowersS 8 mph13 km/h
MondaySep 1482°F28°C67°F19°C0.19 in4.7 mm· 22%53%ShowersSSW 8 mph13 km/h
TuesdaySep 1581°F27°C64°F18°C0.13 in3.4 mm· 18%50%ShowersSSW 7 mph12 km/h
WednesdaySep 1679°F26°C62°F17°C0.11 in2.9 mm· 14%46%ShowersSSE 8 mph12 km/h
ThursdaySep 1778°F26°C61°F16°C0.08 in2 mm· 15%43%ShowersS 7 mph12 km/h

Nearby Cities

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

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Coordinates: 40.7037°N, 89.4073°W·Elevation: 232m·Timezone: America/Chicago·Population: 16,664