Current Conditions

Jacksonville, Illinois

82°F28°C
Light Rain

Feels like87°F31°C

Wind

ESE 3 mph5 km/h

Humidity

77%

Cloud Cover

79%

As of Wednesday, August 12, 2026 at 6:41 PM CDT

Today's Outlook

Night

Mostly cloudy, with a low around 76°F25°C. Light wind from the E around 4 mph6 km/h. 32% chance of showers throughout the night.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
Light RainHigh 85°F29°CFeels 91°F33°CLow 76°F25°CPrecip 0.11 in2.7 mm60%Cloud 79%Wind SSE 5 mph8 km/hWednesday: Overcast and warm, with a high of 85°F29°C — feels like 91°F33°C. Light wind from the S around 6 mph9 km/h. 60% chance of light rain throughout the day. Heavy, humid air. Wednesday Night: Mostly cloudy, with a low around 76°F25°C. Light wind from the E around 4 mph6 km/h. 32% chance of showers throughout the night.
DrizzleHigh 85°F30°CFeels 92°F34°CLow 73°F23°CPrecip 0.04 in1.1 mm21%Cloud 85%Wind E 6 mph10 km/hThursday: Overcast and warm, with a high of 85°F30°C and morning low of 73°F23°C — feels like 93°F34°C. Breezy from the ESE at 6 to 8 mph9 to 13 km/h. 21% chance of drizzle throughout the day. Heavy, humid air. Thursday Night: Mostly cloudy, with a low around 73°F23°C. Breezy from the E at 6 to 9 mph10 to 14 km/h.
Light RainHigh 88°F31°CFeels 97°F36°CLow 73°F23°CPrecip 0.15 in3.7 mm55%Cloud 90%Wind ESE 7 mph11 km/hFriday: Overcast and hot, with a high of 88°F31°C and morning low of 73°F23°C — feels like 97°F36°C. Breezy from the ESE at 6 to 7 mph10 to 11 km/h. 55% chance of light rain throughout the day. Heat risk in the afternoon. Friday Night: Overcast, with a low around 75°F24°C. Breezy from the E at 7 to 9 mph11 to 14 km/h. 32% chance of light rain throughout the night.
Light RainHigh 92°F34°CFeels 101°F38°CLow 77°F25°CPrecip 0.17 in4.3 mm46%Cloud 78%Wind S 6 mph10 km/hSaturday: Overcast and hot, with a high of 92°F34°C and morning low of 77°F25°C — feels like 100°F38°C. Breezy from the S at 7 to 8 mph11 to 13 km/h. 46% chance of light rain in the morning. Heat risk in the afternoon. Saturday Night: Mostly cloudy, with a low around 78°F25°C. Breezy from the SE at 6 to 7 mph10 to 11 km/h. 44% chance of showers overnight.
DrizzleHigh 92°F33°CFeels 102°F39°CLow 78°F25°CPrecip 0.05 in1.3 mm30%Cloud 62%Wind WNW 7 mph10 km/hSunday: Mostly cloudy and hot, with a high of 92°F33°C and morning low of 78°F25°C — feels like 102°F39°C. Breezy from the W at 6 to 7 mph10 to 11 km/h. 16% chance of drizzle in the afternoon. Heat risk in the afternoon. Sunday Night: Mostly cloudy, with a low around 78°F26°C. Breezy from the WNW at 7 mph11 km/h. 30% chance of drizzle throughout the night.
ShowersHigh 84°F29°CFeels 87°F30°CLow 71°F22°CPrecip 0.06 in1.5 mm16%Cloud 62%Wind N 6 mph9 km/hMonday: Mostly cloudy and warm, with a high of 84°F29°C and morning low of 71°F22°C. Light wind from the NNW around 6 mph10 km/h. Humid. Monday Night: Mostly cloudy, with a low around 73°F23°C. Light wind from the N around 5 mph9 km/h. 16% chance of showers overnight.
Partly CloudyHigh 88°F31°CFeels 91°F33°CLow 68°F20°CPrecip 0.04 in0.9 mm9%Cloud 41%Wind ESE 4 mph7 km/hTuesday: Partly cloudy and hot, with a high of 88°F31°C and morning low of 68°F20°C. Light wind from the SSE around 4 mph6 km/h. Humid. Tuesday Night: Partly cloudy, with a low around 69°F20°C. Light wind from the ESE around 5 mph7 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
WednesdayAug 1285°F29°C
Feels 91°F33°C
76°F25°C0.11 in2.7 mm· 60%79%Light RainSSE 5 mph8 km/h
ThursdayAug 1385°F30°C
Feels 92°F34°C
73°F23°C0.04 in1.1 mm· 21%85%DrizzleE 6 mph10 km/h
FridayAug 1488°F31°C
Feels 97°F36°C
73°F23°C0.15 in3.7 mm· 55%90%Light RainESE 7 mph11 km/h
SaturdayAug 1592°F34°C
Feels 101°F38°C
77°F25°C0.17 in4.3 mm· 46%78%Light RainS 6 mph10 km/h
SundayAug 1692°F33°C
Feels 102°F39°C
78°F25°C0.05 in1.3 mm· 30%62%DrizzleWNW 7 mph10 km/h
MondayAug 1784°F29°C
Feels 87°F30°C
71°F22°C0.06 in1.5 mm· 16%62%ShowersN 6 mph9 km/h
TuesdayAug 1888°F31°C
Feels 91°F33°C
68°F20°C0.04 in0.9 mm· 9%41%Partly CloudyESE 4 mph7 km/h
WednesdayAug 1993°F34°C
Feels 98°F37°C
74°F23°C0.04 in1 mm· 10%56%DrizzleS 7 mph12 km/h
ThursdayAug 2090°F32°C
Feels 93°F34°C
73°F23°C0.08 in2.1 mm· 13%40%DrizzleWSW 7 mph11 km/h
FridayAug 2190°F32°C71°F22°C0.06 in1.6 mm· 8%34%ClearSE 6 mph10 km/h
SaturdayAug 2290°F32°C70°F21°C0.03 in0.8 mm· 6%32%ClearENE 6 mph10 km/h
SundayAug 2389°F32°C69°F21°C0.02 in0.4 mm· 5%32%ClearENE 7 mph11 km/h
MondayAug 2489°F31°C68°F20°C0.03 in0.8 mm· 10%34%DrizzleENE 6 mph10 km/h
TuesdayAug 2588°F31°C68°F20°C0.02 in0.6 mm· 7%36%ClearNE 6 mph10 km/h
WednesdayAug 2687°F30°C68°F20°C0.05 in1.2 mm· 10%42%DrizzleENE 6 mph10 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: 39.7339°N, 90.2290°W·Elevation: 186m·Timezone: America/Chicago·Population: 19,103