Current Conditions

Marion, Illinois

75°F24°C
Partly Cloudy

Wind

ENE 6 mph10 km/h

Humidity

52%

Cloud Cover

23%

As of Thursday, July 23, 2026 at 11:11 AM CDT

Today's Outlook

Day

Mostly cloudy and warm, with a high of 81°F27°C and morning low of 65°F19°C. Light wind from the NE around 6 mph9 km/h.

Night

Overcast, with a low around 72°F22°C. Light wind from the ENE around 4 mph7 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
ThursdayJul 23Partly CloudyHigh 81°F27°CLow 65°F19°CPrecip 0 in0 mmCloud 66%Wind NE 5 mph8 km/hThursday: Mostly cloudy and warm, with a high of 81°F27°C and morning low of 65°F19°C. Light wind from the NE around 6 mph9 km/h. Thursday Night: Overcast, with a low around 72°F22°C. Light wind from the ENE around 4 mph7 km/h.
FridayJul 24Light RainHigh 75°F24°CLow 69°F20°CPrecip 0.17 in4.2 mm68%Cloud 94%Wind ENE 3 mph5 km/hFriday: Overcast and warm, with a high of 75°F24°C and morning low of 69°F20°C. Light wind from the NE around 3 mph4 km/h. 68% chance of light rain throughout the day. Friday Night: Overcast, with a low around 69°F21°C. Light wind from the ENE around 4 mph6 km/h. 68% chance of light rain in the evening.
SaturdayJul 25ShowersHigh 88°F31°CFeels 97°F36°CLow 69°F21°CPrecip 0.18 in4.6 mm57%Cloud 63%Wind S 4 mph6 km/hSaturday: Mostly cloudy and hot, with a high of 88°F31°C and morning low of 70°F21°C — feels like 97°F36°C. Light wind from the S around 4 mph7 km/h. 54% chance of showers throughout the day. Heat risk in the afternoon. Saturday Night: Mostly cloudy, with a low around 69°F21°C. Light wind from the SSE around 4 mph6 km/h. 57% chance of showers throughout the night.
SundayJul 26HotHigh 98°F37°CFeels 110°F43°CLow 77°F25°CPrecip 0.01 in0.2 mm4%Cloud 41%Wind SSW 4 mph6 km/hSunday: Partly cloudy and hot, with a high of 98°F37°C and morning low of 77°F25°C — feels like 109°F43°C. Light wind from the WSW around 4 mph6 km/h. Heat risk in the afternoon. Sunday Night: Partly cloudy, with a low around 77°F25°C. Light wind from the S around 5 mph7 km/h.
MondayJul 27HotHigh 97°F36°CFeels 107°F42°CLow 80°F26°CPrecip 0.02 in0.5 mm9%Cloud 51%Wind SSW 7 mph11 km/hMonday: Mostly cloudy and hot, with a high of 97°F36°C and morning low of 80°F26°C — feels like 108°F42°C. Breezy from the SW at 7 to 8 mph11 to 14 km/h. Heat risk in the afternoon. Monday Night: Partly cloudy, with a low around 81°F27°C. Breezy from the SSW at 7 to 9 mph12 to 14 km/h.
TuesdayJul 28DrizzleHigh 99°F37°CFeels 106°F41°CLow 82°F28°CFeels 87°F30°CPrecip 0.04 in1.1 mm20%Cloud 40%Wind W 7 mph12 km/hTuesday: Partly cloudy and hot, with a high of 99°F37°C and morning low of 82°F28°C — feels like 106°F41°C. Breezy from the W at 7 mph12 km/h. 16% chance of drizzle in the afternoon. Heat risk in the afternoon. Tuesday Night: Partly cloudy, with a low around 83°F28°C. Breezy from the WSW at 7 to 9 mph12 to 15 km/h. 20% chance of drizzle in the evening.
WednesdayJul 29HotHigh 95°F35°CLow 77°F25°CPrecip 0.04 in1.1 mm9%Cloud 26%Wind NE 5 mph9 km/hWednesday: Partly cloudy and hot, with a high of 95°F35°C and morning low of 77°F25°C. Light wind from the NE around 5 mph8 km/h. Heat risk in the afternoon. Wednesday Night: Partly cloudy, with a low around 79°F26°C. Light wind from the NE around 6 mph9 km/h.

15-Day Forecast

Day High (°F) Low (°F) Precip (mm) Cloud Cover (%) Condition Wind (mph)

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.

WeatherMesh consistently outperforms legacy models in independent benchmarks. View Benchmarks →

Access WeatherMesh forecasts programmatically via our API. API Documentation →

How to Access Weather Forecasts

PatternExampleDescription
/weather/{country}/{city}//weather/united-states/san-francisco/City forecast (canonical URL)
/weather/{city}//weather/tokyo/Shorthand — redirects to most populous match
/weather/{country}/{region}/{city}//weather/united-states/california/san-francisco/With region — redirects to canonical
/weather/nearby?lat={lat}&lon={lon}/weather/nearby?lat=48.1&lon=11.5Find nearest city by coordinates
/weather/{country}//weather/germany/Country index — all cities by region

Country and city names use lowercase slugs with hyphens (e.g. united-states, san-francisco). Arbitrary city names are supported — if not in our database, we geocode the name and serve the forecast for that location.

For programmatic access, use theWindBorne Forecast APIwhich returns structured JSON for any coordinates worldwide.

Coordinates: 37.7306°N, 88.9331°W·Elevation: 129m·Timezone: America/Chicago·Population: 17,803