Current Conditions

Marion, Illinois

81°F27°C
Light Rain

Feels like85°F29°C

Wind

SSE 6 mph9 km/h

Humidity

76%

Cloud Cover

94%

As of Wednesday, August 12, 2026 at 10:28 PM CDT

Today's Outlook

Night

Mostly cloudy, with a low around 79°F26°C. Breezy from the SSE at 6 to 7 mph10 to 11 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
Light RainHigh 95°F35°CFeels 103°F40°CLow 78°F26°CPrecip 0.04 in0.9 mm31%Cloud 85%Wind SSW 6 mph9 km/hThursday: Overcast and hot, with a high of 95°F35°C and morning low of 78°F26°C — feels like 104°F40°C. Light wind from the SW around 5 mph9 km/h. 31% chance of light rain in the afternoon. Heat risk in the afternoon. Thursday Night: Mostly cloudy, with a low around 79°F26°C. Breezy from the SSE at 6 to 7 mph10 to 11 km/h.
DrizzleHigh 96°F36°CFeels 106°F41°CLow 79°F26°CPrecip 0.01 in0.2 mm10%Cloud 65%Wind SSW 6 mph9 km/hFriday: Overcast and hot, with a high of 96°F36°C and morning low of 79°F26°C — feels like 106°F41°C. Light wind from the SW around 5 mph8 km/h. 10% chance of drizzle. Heat risk in the afternoon. Friday Night: Mostly cloudy, with a low around 81°F27°C. Breezy from the S at 6 to 7 mph10 to 12 km/h.
HotHigh 99°F37°CFeels 103°F39°CLow 80°F27°CPrecip 0.01 in0.2 mm4%Cloud 39%Wind SSW 6 mph10 km/hSaturday: Partly cloudy and hot, with a high of 99°F37°C and morning low of 80°F27°C. Light wind from the SW around 6 mph9 km/h. Heat risk in the afternoon. Saturday Night: Partly cloudy, with a low around 81°F27°C. Breezy from the SSW at 6 to 7 mph10 to 12 km/h.
HotHigh 102°F39°CLow 81°F27°CFeels 85°F29°CPrecip 0 in0.1 mm6%Cloud 25%Wind SW 7 mph12 km/hSunday: Mostly clear and hot, with a high of 102°F39°C and morning low of 81°F27°C. Breezy from the WSW at 7 to 8 mph12 to 13 km/h. Heat risk in the afternoon. Sunday Night: Partly cloudy, with a low around 83°F28°C. Breezy from the SW at 7 to 8 mph12 to 13 km/h.
HotHigh 92°F34°CFeels 97°F36°CLow 78°F26°CPrecip 0.02 in0.5 mm7%Cloud 40%Wind NNW 6 mph10 km/hMonday: Partly cloudy and hot, with a high of 92°F34°C and morning low of 78°F26°C. Breezy from the NNW at 6 to 7 mph10 to 11 km/h. Heat risk in the afternoon. Monday Night: Partly cloudy, with a low around 80°F27°C. Light wind from the N around 6 mph10 km/h.
DrizzleHigh 93°F34°CLow 73°F23°CPrecip 0.03 in0.7 mm12%Cloud 32%Wind ENE 4 mph7 km/hTuesday: Partly cloudy and hot, with a high of 93°F34°C and morning low of 73°F23°C. Light wind from the NE around 3 mph5 km/h. 12% chance of drizzle in the morning. Heat risk in the afternoon. Tuesday Night: Partly cloudy, with a low around 75°F24°C. Light wind from the ENE around 5 mph8 km/h.
DrizzleHigh 99°F37°CLow 76°F24°CPrecip 0.02 in0.4 mm13%Cloud 43%Wind SSW 6 mph10 km/hWednesday: Partly cloudy and hot, with a high of 99°F37°C and morning low of 76°F24°C. Breezy from the SSW at 6 to 7 mph10 to 12 km/h. Heat risk in the afternoon. Wednesday Night: Partly cloudy, with a low around 76°F25°C. Breezy from the S at 6 to 7 mph10 to 12 km/h. 13% chance of drizzle in the evening.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
ThursdayAug 1395°F35°C
Feels 103°F40°C
78°F26°C0.04 in0.9 mm· 31%85%Light RainSSW 6 mph9 km/h
FridayAug 1496°F36°C
Feels 106°F41°C
79°F26°C0.01 in0.2 mm· 10%65%DrizzleSSW 6 mph9 km/h
SaturdayAug 1599°F37°C
Feels 103°F39°C
80°F27°C0.01 in0.2 mm· 4%39%HotSSW 6 mph10 km/h
SundayAug 16102°F39°C81°F27°C
Feels 85°F29°C
0 in0.1 mm· 6%25%HotSW 7 mph12 km/h
MondayAug 1792°F34°C
Feels 97°F36°C
78°F26°C0.02 in0.5 mm· 7%40%HotNNW 6 mph10 km/h
TuesdayAug 1893°F34°C73°F23°C0.03 in0.7 mm· 12%32%DrizzleENE 4 mph7 km/h
WednesdayAug 1999°F37°C76°F24°C0.02 in0.4 mm· 13%43%DrizzleSSW 6 mph10 km/h
ThursdayAug 2096°F35°C78°F26°C0.04 in0.9 mm· 10%41%DrizzleWSW 7 mph11 km/h
FridayAug 2192°F33°C74°F23°C0.06 in1.6 mm· 14%39%DrizzleNNE 6 mph10 km/h
SaturdayAug 2293°F34°C72°F22°C0.06 in1.6 mm· 7%35%ClearNE 5 mph9 km/h
SundayAug 2393°F34°C72°F22°C0.03 in0.7 mm· 11%34%DrizzleNE 6 mph9 km/h
MondayAug 2492°F33°C72°F22°C0.02 in0.5 mm· 7%35%ClearNE 6 mph9 km/h
TuesdayAug 2591°F33°C71°F22°C0.02 in0.5 mm· 5%32%ClearENE 6 mph9 km/h
WednesdayAug 2692°F33°C71°F22°C0.02 in0.5 mm· 8%33%ClearENE 6 mph9 km/h
ThursdayAug 2792°F33°C71°F22°C0.03 in0.7 mm· 14%38%DrizzleENE 6 mph9 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: 37.7306°N, 88.9331°W·Elevation: 129m·Timezone: America/Chicago·Population: 17,803