Current Conditions
St. Charles, Illinois
Feels like86°F30°C
Wind
WNW 4 mph7 km/h
Humidity
70%
Cloud Cover
81%
As of Wednesday, August 12, 2026 at 5:13 PM CDT
Today's Outlook
Day
Overcast and warm, with a high of 82°F28°C. Light wind from the W around 5 mph8 km/h. 56% chance of light rain throughout the day. Heavy, humid air.
Night
Partly cloudy, with a low around 74°F23°C. Light wind from the E around 3 mph5 km/h. 32% chance of showers in the evening.
7-Day Forecast
| Day | Condition | High (°F) | Low (°F) | Precip (mm) | Cloud Cover (%) | Wind (mph) | |
|---|---|---|---|---|---|---|---|
| Showers | High 82°F28°CFeels 86°F30°C | Low 74°F23°C | Precip 0.09 in2.4 mm56% | Cloud 59% | Wind W 4 mph6 km/h | Wednesday: Overcast and warm, with a high of 82°F28°C. Light wind from the W around 5 mph8 km/h. 56% chance of light rain throughout the day. Heavy, humid air. Wednesday Night: Partly cloudy, with a low around 74°F23°C. Light wind from the E around 3 mph5 km/h. 32% chance of showers in the evening. | |
| Light Rain | High 78°F25°C | Low 69°F21°C | Precip 0.08 in2.1 mm60% | Cloud 82% | Wind E 4 mph6 km/h | Thursday: Overcast and warm, with a high of 78°F25°C and morning low of 70°F21°C. Light wind from the ESE around 4 mph7 km/h. 60% chance of light rain around midday. Humid. Thursday Night: Mostly cloudy, with a low around 69°F21°C. Light wind from the E around 4 mph6 km/h. 32% chance of showers in the evening. | |
| Light Rain | High 77°F25°C | Low 70°F21°C | Precip 0.39 in9.8 mm68% | Cloud 95% | Wind E 6 mph9 km/h | Friday: Overcast and warm, with a high of 77°F25°C and morning low of 70°F21°C. Breezy from the ESE at 6 to 7 mph10 to 12 km/h. 68% chance of light rain throughout the day. Humid. Friday Night: Overcast, with a low around 70°F21°C. Light wind from the E around 5 mph9 km/h. 52% chance of light rain throughout the night. | |
| Rain | High 82°F28°CFeels 88°F31°C | Low 72°F22°C | Precip 0.46 in11.8 mm63% | Cloud 92% | Wind SSE 6 mph9 km/h | Saturday: Overcast and warm, with a high of 82°F28°C and morning low of 72°F22°C — feels like 88°F31°C. Light wind from the S around 6 mph10 km/h. 63% chance of rain throughout the day. Heavy, humid air. Saturday Night: Overcast, with a low around 72°F22°C. Light wind from the SE around 5 mph9 km/h. 50% chance of light rain throughout the night. | |
| Light Rain | High 84°F29°CFeels 89°F32°C | Low 74°F23°C | Precip 0.22 in5.6 mm35% | Cloud 80% | Wind WNW 7 mph11 km/h | Sunday: Overcast and warm, with a high of 84°F29°C and morning low of 74°F24°C — feels like 90°F32°C. Breezy from the WNW at 8 mph12 km/h. 28% chance of light rain throughout the day. Heavy, humid air. Sunday Night: Mostly cloudy, with a low around 74°F23°C. Breezy from the W at 6 to 7 mph10 to 11 km/h. 35% chance of light rain throughout the night. | |
| Showers | High 78°F26°C | Low 68°F20°C | Precip 0.07 in1.8 mm22% | Cloud 67% | Wind NNE 6 mph9 km/h | Monday: Mostly cloudy and warm, with a high of 78°F26°C and morning low of 68°F20°C. Breezy from the NNE at 6 to 7 mph10 to 11 km/h. 13% chance of drizzle in the morning. Monday Night: Mostly cloudy, with a low around 68°F20°C. Light wind from the NNE around 5 mph8 km/h. 22% chance of showers overnight. | |
| Partly Cloudy | High 83°F28°C | Low 63°F17°C | Precip 0 in0.1 mm5% | Cloud 51% | Wind SSW 5 mph7 km/h | Tuesday: Mostly cloudy and warm, with a high of 83°F28°C and morning low of 64°F18°C. Light wind from the SW around 5 mph8 km/h. Tuesday Night: Partly cloudy, with a low around 63°F17°C. Light wind from the SSW around 4 mph7 km/h. |
15-Day Forecast
| Day | High | Low | Precip | Cloud Cover | Condition | Wind | |
|---|---|---|---|---|---|---|---|
| WednesdayAug 12 | 82°F28°C Feels 86°F30°C | 74°F23°C | 0.09 in2.4 mm· 56% | 59% | Showers | W 4 mph6 km/h | |
DayOvercast and warm, with a high of 82°F28°C. Light wind from the W around 5 mph8 km/h. 56% chance of light rain throughout the day. Heavy, humid air. NightPartly cloudy, with a low around 74°F23°C. Light wind from the E around 3 mph5 km/h. 32% chance of showers in the evening. | |||||||
| ThursdayAug 13 | 78°F25°C | 69°F21°C | 0.08 in2.1 mm· 60% | 82% | Light Rain | E 4 mph6 km/h | |
DayOvercast and warm, with a high of 78°F25°C and morning low of 70°F21°C. Light wind from the ESE around 4 mph7 km/h. 60% chance of light rain around midday. Humid. NightMostly cloudy, with a low around 69°F21°C. Light wind from the E around 4 mph6 km/h. 32% chance of showers in the evening. | |||||||
| FridayAug 14 | 77°F25°C | 70°F21°C | 0.39 in9.8 mm· 68% | 95% | Light Rain | E 6 mph9 km/h | |
DayOvercast and warm, with a high of 77°F25°C and morning low of 70°F21°C. Breezy from the ESE at 6 to 7 mph10 to 12 km/h. 68% chance of light rain throughout the day. Humid. NightOvercast, with a low around 70°F21°C. Light wind from the E around 5 mph9 km/h. 52% chance of light rain throughout the night. | |||||||
| SaturdayAug 15 | 82°F28°C Feels 88°F31°C | 72°F22°C | 0.46 in11.8 mm· 63% | 92% | Rain | SSE 6 mph9 km/h | |
DayOvercast and warm, with a high of 82°F28°C and morning low of 72°F22°C — feels like 88°F31°C. Light wind from the S around 6 mph10 km/h. 63% chance of rain throughout the day. Heavy, humid air. NightOvercast, with a low around 72°F22°C. Light wind from the SE around 5 mph9 km/h. 50% chance of light rain throughout the night. | |||||||
| SundayAug 16 | 84°F29°C Feels 89°F32°C | 74°F23°C | 0.22 in5.6 mm· 35% | 80% | Light Rain | WNW 7 mph11 km/h | |
DayOvercast and warm, with a high of 84°F29°C and morning low of 74°F24°C — feels like 90°F32°C. Breezy from the WNW at 8 mph12 km/h. 28% chance of light rain throughout the day. Heavy, humid air. NightMostly cloudy, with a low around 74°F23°C. Breezy from the W at 6 to 7 mph10 to 11 km/h. 35% chance of light rain throughout the night. | |||||||
| MondayAug 17 | 78°F26°C | 68°F20°C | 0.07 in1.8 mm· 22% | 67% | Showers | NNE 6 mph9 km/h | |
DayMostly cloudy and warm, with a high of 78°F26°C and morning low of 68°F20°C. Breezy from the NNE at 6 to 7 mph10 to 11 km/h. 13% chance of drizzle in the morning. NightMostly cloudy, with a low around 68°F20°C. Light wind from the NNE around 5 mph8 km/h. 22% chance of showers overnight. | |||||||
| TuesdayAug 18 | 83°F28°C | 63°F17°C | 0 in0.1 mm· 5% | 51% | Partly Cloudy | SSW 5 mph7 km/h | |
DayMostly cloudy and warm, with a high of 83°F28°C and morning low of 64°F18°C. Light wind from the SW around 5 mph8 km/h. NightPartly cloudy, with a low around 63°F17°C. Light wind from the SSW around 4 mph7 km/h. | |||||||
| WednesdayAug 19 | 84°F29°C Feels 88°F31°C | 70°F21°C | 0.16 in4.1 mm· 23% | 69% | Showers | SW 7 mph12 km/h | |
DayMostly cloudy and warm, with a high of 84°F29°C and morning low of 70°F21°C. Breezy from the SW at 8 to 10 mph13 to 15 km/h. 22% chance of light rain throughout the day. Humid. NightMostly cloudy, with a low around 70°F21°C. Breezy from the SSW at 7 mph11 km/h. 23% chance of showers throughout the night. | |||||||
| ThursdayAug 20 | 83°F28°C | 69°F21°C | 0.1 in2.5 mm· 15% | 50% | Showers | W 7 mph11 km/h | |
DayMostly cloudy and warm, with a high of 83°F28°C and morning low of 69°F21°C. Breezy from the WNW at 8 mph12 km/h. 14% chance of showers throughout the day. Humid. NightPartly cloudy, with a low around 70°F21°C. Light wind from the WSW around 6 mph10 km/h. 15% chance of showers throughout the night. | |||||||
| FridayAug 21 | 83°F28°C | 67°F20°C | 0.08 in2.1 mm· 12% | 40% | Drizzle | WSW 6 mph10 km/h | |
DayPartly cloudy and warm, with a high of 83°F28°C and morning low of 67°F20°C. Breezy from the WSW at 7 to 8 mph11 to 12 km/h. 11% chance of drizzle throughout the day. NightPartly cloudy, with a low around 67°F20°C. Light wind from the SW around 6 mph9 km/h. 12% chance of drizzle throughout the night. | |||||||
| SaturdayAug 22 | 83°F28°C | 66°F19°C | 0.05 in1.2 mm· 12% | 41% | Drizzle | WNW 6 mph10 km/h | |
DayPartly cloudy and warm, with a high of 83°F28°C and morning low of 66°F19°C. Breezy from the WNW at 7 to 8 mph11 to 12 km/h. 12% chance of drizzle in the morning. NightPartly cloudy, with a low around 67°F19°C. Light wind from the W around 6 mph9 km/h. | |||||||
| SundayAug 23 | 82°F28°C | 66°F19°C | 0.04 in1.1 mm· 13% | 42% | Drizzle | N 7 mph10 km/h | |
DayPartly cloudy and warm, with a high of 82°F28°C and morning low of 66°F19°C. Breezy from the W at 7 to 8 mph11 to 13 km/h. 13% chance of drizzle around midday. NightPartly cloudy, with a low around 66°F19°C. Light wind from the NE around 6 mph10 km/h. 12% chance of drizzle throughout the night. | |||||||
| MondayAug 24 | 82°F28°C | 65°F19°C | 0.05 in1.3 mm· 10% | 43% | Drizzle | WNW 7 mph11 km/h | |
DayPartly cloudy and warm, with a high of 82°F28°C and morning low of 65°F19°C. Breezy from the W at 7 to 8 mph11 to 13 km/h. 10% chance of drizzle throughout the day. NightPartly cloudy, with a low around 66°F19°C. Light wind from the ENE around 6 mph10 km/h. 10% chance of drizzle throughout the night. | |||||||
| TuesdayAug 25 | 81°F27°C | 64°F18°C | 0.04 in1 mm· 12% | 40% | Drizzle | NNE 6 mph10 km/h | |
DayPartly cloudy and warm, with a high of 81°F27°C and morning low of 64°F18°C. Breezy from the NNW at 7 to 8 mph11 to 12 km/h. 12% chance of drizzle around midday. NightPartly cloudy, with a low around 65°F18°C. Light wind from the NE around 6 mph9 km/h. 10% chance of drizzle in the evening. | |||||||
| WednesdayAug 26 | 82°F28°C | 64°F18°C | 0.04 in1.1 mm· 8% | 42% | Partly Cloudy | SW 6 mph10 km/h | |
DayPartly cloudy and warm, with a high of 82°F28°C and morning low of 64°F18°C. Breezy from the W at 7 mph11 km/h. NightPartly cloudy, with a low around 65°F18°C. Light wind from the ESE around 6 mph9 km/h. | |||||||
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Coordinates: 41.9142°N, 88.3087°W·Elevation: 223m·Timezone: America/Chicago·Population: 32,974