Current Conditions

Frankfort, Illinois

89°F32°C
Drizzle

Feels like97°F36°C

Wind

SW 7 mph11 km/h

Humidity

58%

Cloud Cover

36%

As of Wednesday, September 2, 2026 at 7:33 PM CDT

Today's Outlook

Night

Partly cloudy, with a low around 82°F28°C. Breezy from the SW at 7 mph11 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
DrizzleHigh 95°F35°CFeels 103°F39°CLow 82°F28°CFeels 88°F31°CPrecip 0.01 in0.2 mm11%Cloud 25%Wind SW 8 mph13 km/hWednesday: Partly cloudy and hot, with a high of 95°F35°C — feels like 102°F39°C. Breezy from the SW at 10 to 11 mph16 to 17 km/h. 11% chance of drizzle in the afternoon. Heat risk in the afternoon. Wednesday Night: Partly cloudy, with a low around 82°F28°C. Breezy from the SW at 7 mph11 km/h.
DrizzleHigh 91°F33°CFeels 99°F37°CLow 76°F24°CPrecip 0.03 in0.7 mm36%Cloud 32%Wind SSW 6 mph9 km/hThursday: Partly cloudy and hot, with a high of 91°F33°C and morning low of 76°F24°C — feels like 99°F37°C. Breezy from the SW at 6 to 7 mph9 to 11 km/h. 36% chance of drizzle in the afternoon. Heat risk in the afternoon. Thursday Night: Mostly clear, with a low around 78°F25°C. Breezy from the S at 6 to 7 mph10 to 11 km/h.
DrizzleHigh 93°F34°CFeels 100°F38°CLow 75°F24°CPrecip 0.02 in0.5 mm10%Cloud 42%Wind S 5 mph9 km/hFriday: Partly cloudy and hot, with a high of 93°F34°C and morning low of 75°F24°C — feels like 100°F38°C. Light wind from the SSW around 6 mph9 km/h. Heat risk in the afternoon. Friday Night: Partly cloudy, with a low around 75°F24°C. Light wind from the SSE around 5 mph8 km/h. 10% chance of drizzle in the evening.
ShowersHigh 86°F30°CFeels 93°F34°CLow 74°F24°CPrecip 0.15 in3.9 mm41%Cloud 53%Wind NE 6 mph9 km/hSaturday: Mostly cloudy and warm, with a high of 86°F30°C and morning low of 74°F24°C — feels like 93°F34°C. Breezy from the NE at 6 to 8 mph10 to 12 km/h. 41% chance of showers throughout the day. Heavy, humid air. Saturday Night: Mostly cloudy, with a low around 75°F24°C. Breezy from the NE at 6 to 8 mph9 to 12 km/h. 30% chance of showers throughout the night.
Partly CloudyHigh 82°F28°CLow 68°F20°CPrecip 0.03 in0.7 mm8%Cloud 61%Wind E 6 mph10 km/hSunday: Mostly cloudy and warm, with a high of 82°F28°C and morning low of 68°F20°C. Breezy from the E at 7 mph11 km/h. Sunday Night: Mostly cloudy, with a low around 70°F21°C. Light wind from the E around 6 mph9 km/h.
Partly CloudyHigh 83°F29°CLow 65°F19°CPrecip 0.01 in0.2 mm5%Cloud 51%Wind ESE 6 mph10 km/hMonday: Partly cloudy and warm, with a high of 83°F29°C and morning low of 65°F19°C. Breezy from the ESE at 6 to 7 mph10 to 11 km/h. Monday Night: Mostly cloudy, with a low around 67°F19°C. Light wind from the ESE around 6 mph9 km/h.
Partly CloudyHigh 91°F33°CLow 66°F19°CPrecip 0.01 in0.2 mm5%Cloud 53%Wind SSE 8 mph13 km/hTuesday: Mostly cloudy and hot, with a high of 91°F33°C and morning low of 66°F19°C. Breezy from the SSE at 8 to 9 mph13 to 15 km/h. Tuesday Night: Partly cloudy, with a low around 67°F20°C. Breezy from the SSE at 8 to 9 mph12 to 15 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
WednesdaySep 295°F35°C
Feels 103°F39°C
82°F28°C
Feels 88°F31°C
0.01 in0.2 mm· 11%25%DrizzleSW 8 mph13 km/h
ThursdaySep 391°F33°C
Feels 99°F37°C
76°F24°C0.03 in0.7 mm· 36%32%DrizzleSSW 6 mph9 km/h
FridaySep 493°F34°C
Feels 100°F38°C
75°F24°C0.02 in0.5 mm· 10%42%DrizzleS 5 mph9 km/h
SaturdaySep 586°F30°C
Feels 93°F34°C
74°F24°C0.15 in3.9 mm· 41%53%ShowersNE 6 mph9 km/h
SundaySep 682°F28°C68°F20°C0.03 in0.7 mm· 8%61%Partly CloudyE 6 mph10 km/h
MondaySep 783°F29°C65°F19°C0.01 in0.2 mm· 5%51%Partly CloudyESE 6 mph10 km/h
TuesdaySep 891°F33°C66°F19°C0.01 in0.2 mm· 5%53%Partly CloudySSE 8 mph13 km/h
WednesdaySep 992°F33°C
Feels 97°F36°C
76°F25°C0.06 in1.4 mm· 17%43%DrizzleSW 9 mph15 km/h
ThursdaySep 1084°F29°C72°F22°C0.21 in5.4 mm· 24%53%ShowersW 8 mph12 km/h
FridaySep 1183°F28°C66°F19°C0.11 in2.7 mm· 17%41%ShowersSSW 7 mph12 km/h
SaturdaySep 1284°F29°C66°F19°C0.09 in2.4 mm· 17%43%ShowersSSW 8 mph13 km/h
SundaySep 1383°F28°C67°F19°C0.13 in3.3 mm· 18%53%ShowersSSW 9 mph14 km/h
MondaySep 1482°F28°C67°F19°C0.12 in3.1 mm· 18%52%ShowersSSW 9 mph14 km/h
TuesdaySep 1581°F27°C65°F18°C0.11 in2.7 mm· 15%45%ShowersSSW 8 mph13 km/h
WednesdaySep 1679°F26°C63°F17°C0.1 in2.5 mm· 15%44%ShowersSW 8 mph13 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