Current Conditions

Frankfort, Illinois

74°F23°C
Light Rain

Wind

SSW 7 mph11 km/h

Humidity

67%

Cloud Cover

92%

As of Wednesday, September 9, 2026 at 12:59 AM CDT

Today's Outlook

Day

Overcast and warm, with a high of 80°F27°C and morning low of 72°F22°C. Breezy from the WSW at 7 to 9 mph11 to 14 km/h. 82% chance of light rain throughout the day. Humid.

Night

Mostly cloudy, with a low around 73°F23°C. Breezy from the SW at 6 to 7 mph10 to 11 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
Light RainHigh 80°F27°CLow 72°F22°CPrecip 0.16 in4 mm82%Cloud 85%Wind WSW 6 mph10 km/hWednesday: Overcast and warm, with a high of 80°F27°C and morning low of 72°F22°C. Breezy from the WSW at 7 to 9 mph11 to 14 km/h. 82% chance of light rain throughout the day. Humid. Wednesday Night: Mostly cloudy, with a low around 73°F23°C. Breezy from the SW at 6 to 7 mph10 to 11 km/h.
DrizzleHigh 77°F25°CLow 64°F18°CPrecip 0.02 in0.5 mm13%Cloud 79%Wind NNE 5 mph9 km/hThursday: Overcast and warm, with a high of 77°F25°C and morning low of 68°F20°C. Light wind from the NNE around 5 mph8 km/h. 13% chance of drizzle in the morning. Thursday Night: Mostly cloudy, with a low around 64°F18°C. Light wind from the N around 6 mph9 km/h.
ClearHigh 82°F28°CLow 58°F14°CPrecip 0.01 in0.2 mm3%Cloud 25%Wind SE 5 mph8 km/hFriday: Partly cloudy and warm, with a high of 82°F28°C and morning low of 58°F14°C. Light wind from the SE around 5 mph8 km/h. Friday Night: Mostly clear, with a low around 59°F15°C. Light wind from the ESE around 5 mph8 km/h.
DrizzleHigh 85°F30°CLow 65°F18°CPrecip 0.03 in0.8 mm16%Cloud 49%Wind SW 7 mph11 km/hSaturday: Mostly cloudy and warm, with a high of 85°F30°C and morning low of 65°F18°C. Breezy from the SW at 8 to 9 mph12 to 15 km/h. 16% chance of drizzle in the afternoon. Humid. Saturday Night: Partly cloudy, with a low around 65°F19°C. Light wind from the SSW around 6 mph9 km/h. 15% chance of drizzle in the evening.
ClearHigh 77°F25°CLow 63°F17°CPrecip 0.04 in1 mm9%Cloud 37%Wind N 7 mph11 km/hSunday: Partly cloudy and warm, with a high of 77°F25°C and morning low of 64°F18°C. Breezy from the N at 7 to 8 mph12 to 13 km/h. Sunday Night: Partly cloudy, with a low around 63°F17°C. Light wind from the N around 6 mph10 km/h.
DrizzleHigh 80°F27°CLow 59°F15°CPrecip 0.08 in2.1 mm18%Cloud 55%Wind SE 9 mph14 km/hMonday: Mostly cloudy and warm, with a high of 80°F27°C and morning low of 59°F15°C. Breezy from the SE at 9 to 11 mph14 to 18 km/h. 18% chance of drizzle throughout the day. Monday Night: Partly cloudy, with a low around 60°F15°C. Breezy from the SSE at 9 to 13 mph14 to 21 km/h.
ShowersHigh 84°F29°CLow 70°F21°CPrecip 0.16 in4.1 mm36%Cloud 70%Wind SSW 10 mph16 km/hTuesday: Mostly cloudy and warm, with a high of 84°F29°C and morning low of 70°F21°C. Breezy from the SW at 11 mph17 km/h. 24% chance of showers throughout the day. Tuesday Night: Mostly cloudy, with a low around 72°F22°C. Breezy from the SSW at 10 to 13 mph15 to 21 km/h. 36% chance of light rain throughout the night.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
WednesdaySep 980°F27°C72°F22°C0.16 in4 mm· 82%85%Light RainWSW 6 mph10 km/h
ThursdaySep 1077°F25°C64°F18°C0.02 in0.5 mm· 13%79%DrizzleNNE 5 mph9 km/h
FridaySep 1182°F28°C58°F14°C0.01 in0.2 mm· 3%25%ClearSE 5 mph8 km/h
SaturdaySep 1285°F30°C65°F18°C0.03 in0.8 mm· 16%49%DrizzleSW 7 mph11 km/h
SundaySep 1377°F25°C63°F17°C0.04 in1 mm· 9%37%ClearN 7 mph11 km/h
MondaySep 1480°F27°C59°F15°C0.08 in2.1 mm· 18%55%DrizzleSE 9 mph14 km/h
TuesdaySep 1584°F29°C70°F21°C0.16 in4.1 mm· 36%70%ShowersSSW 10 mph16 km/h
WednesdaySep 1680°F27°C66°F19°C0.27 in6.9 mm· 38%69%ShowersESE 6 mph10 km/h
ThursdaySep 1784°F29°C69°F21°C0.18 in4.6 mm· 22%50%ShowersSSW 9 mph14 km/h
FridaySep 1878°F26°C65°F19°C0.15 in3.7 mm· 21%48%ShowersWSW 9 mph14 km/h
SaturdaySep 1973°F23°C60°F15°C0.2 in5.2 mm· 23%55%ShowersWNW 8 mph13 km/h
SundaySep 2069°F20°C55°F13°C0.15 in3.8 mm· 21%53%ShowersN 8 mph13 km/h
MondaySep 2169°F20°C53°F12°C0.08 in2.1 mm· 13%51%DrizzleNE 7 mph11 km/h
TuesdaySep 2271°F21°C53°F12°C0.08 in2.1 mm· 13%56%DrizzleE 7 mph12 km/h
WednesdaySep 2371°F22°C54°F12°C0.13 in3.4 mm· 15%58%ShowersESE 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: 41.4959°N, 87.8487°W·Elevation: 232m·Timezone: America/Chicago·Population: 18,653