Current Conditions
Belleville, Illinois
Wind
NE 7 mph12 km/h
Humidity
66%
Cloud Cover
76%
As of Tuesday, September 22, 2026 at 8:31 PM CDT
Today's Outlook
Night
Mostly cloudy, with a low around 62°F17°C. Light wind from the NNE around 6 mph10 km/h.
7-Day Forecast
| Day | Condition | High (°F) | Low (°F) | Precip (mm) | Cloud Cover (%) | Wind (mph) | |
|---|---|---|---|---|---|---|---|
| Cloudy | High 69°F20°C | Low 60°F16°C | Precip 0.01 in0.2 mm4% | Cloud 81% | Wind NNE 7 mph11 km/h | Wednesday: Overcast and warm, with a high of 69°F20°C and morning low of 60°F16°C. Breezy from the NNE at 7 to 8 mph12 to 13 km/h. Wednesday Night: Mostly cloudy, with a low around 62°F17°C. Light wind from the NNE around 6 mph10 km/h. | |
| Cloudy | High 71°F22°C | Low 61°F16°C | Precip 0 in0 mm— | Cloud 85% | Wind NE 5 mph7 km/h | Thursday: Overcast and warm, with a high of 71°F22°C and morning low of 61°F16°C. Light wind from the NNE around 5 mph7 km/h. Thursday Night: Mostly cloudy, with a low around 61°F16°C. Light wind from the NE around 4 mph7 km/h. | |
| Cloudy | High 76°F25°C | Low 62°F17°C | Precip 0.01 in0.2 mm2% | Cloud 85% | Wind ENE 4 mph7 km/h | Friday: Overcast and warm, with a high of 76°F25°C and morning low of 62°F17°C. Light wind from the ENE around 4 mph7 km/h. Friday Night: Overcast, with a low around 63°F17°C. Light wind from the ENE around 4 mph7 km/h. | |
| Drizzle | High 73°F23°C | Low 61°F16°C | Precip 0.07 in1.8 mm29% | Cloud 86% | Wind E 4 mph7 km/h | Saturday: Overcast and warm, with a high of 73°F23°C and morning low of 61°F16°C. Light wind from the ESE around 4 mph7 km/h. 29% chance of drizzle throughout the day. Saturday Night: Overcast, with a low around 64°F18°C. Light wind from the E around 5 mph8 km/h. 21% chance of drizzle in the evening. | |
| Showers | High 76°F24°C | Low 61°F16°C | Precip 0.09 in2.4 mm32% | Cloud 62% | Wind E 4 mph6 km/h | Sunday: Mostly cloudy and warm, with a high of 76°F24°C and morning low of 61°F16°C. Light wind from the E around 4 mph6 km/h. 32% chance of showers throughout the day. Sunday Night: Mostly cloudy, with a low around 62°F17°C. Light wind from the ENE around 4 mph7 km/h. 28% chance of drizzle throughout the night. | |
| Clear | High 81°F27°C | Low 59°F15°C | Precip 0.01 in0.2 mm7% | Cloud 31% | Wind ENE 4 mph6 km/h | Monday: Partly cloudy and warm, with a high of 81°F27°C and morning low of 59°F15°C. Light wind from the ENE around 4 mph6 km/h. Monday Night: Partly cloudy, with a low around 62°F16°C. Light wind from the ENE around 4 mph7 km/h. | |
| Light Rain | High 81°F27°C | Low 59°F15°C | Precip 0.15 in3.7 mm32% | Cloud 71% | Wind SSE 7 mph11 km/h | Tuesday: Mostly cloudy and warm, with a high of 81°F27°C and morning low of 59°F15°C. Breezy from the SSE at 7 to 8 mph11 to 13 km/h. 22% chance of light rain throughout the day. Tuesday Night: Mostly cloudy, with a low around 61°F16°C. Breezy from the SE at 6 to 8 mph10 to 12 km/h. 32% chance of light rain in the evening. |
15-Day Forecast
| Day | High | Low | Precip | Cloud Cover | Condition | Wind | |
|---|---|---|---|---|---|---|---|
| WednesdaySep 23 | 69°F20°C | 60°F16°C | 0.01 in0.2 mm· 4% | 81% | Cloudy | NNE 7 mph11 km/h | |
DayOvercast and warm, with a high of 69°F20°C and morning low of 60°F16°C. Breezy from the NNE at 7 to 8 mph12 to 13 km/h. NightMostly cloudy, with a low around 62°F17°C. Light wind from the NNE around 6 mph10 km/h. | |||||||
| ThursdaySep 24 | 71°F22°C | 61°F16°C | 0 in0 mm· — | 85% | Cloudy | NE 5 mph7 km/h | |
DayOvercast and warm, with a high of 71°F22°C and morning low of 61°F16°C. Light wind from the NNE around 5 mph7 km/h. NightMostly cloudy, with a low around 61°F16°C. Light wind from the NE around 4 mph7 km/h. | |||||||
| FridaySep 25 | 76°F25°C | 62°F17°C | 0.01 in0.2 mm· 2% | 85% | Cloudy | ENE 4 mph7 km/h | |
DayOvercast and warm, with a high of 76°F25°C and morning low of 62°F17°C. Light wind from the ENE around 4 mph7 km/h. NightOvercast, with a low around 63°F17°C. Light wind from the ENE around 4 mph7 km/h. | |||||||
| SaturdaySep 26 | 73°F23°C | 61°F16°C | 0.07 in1.8 mm· 29% | 86% | Drizzle | E 4 mph7 km/h | |
DayOvercast and warm, with a high of 73°F23°C and morning low of 61°F16°C. Light wind from the ESE around 4 mph7 km/h. 29% chance of drizzle throughout the day. NightOvercast, with a low around 64°F18°C. Light wind from the E around 5 mph8 km/h. 21% chance of drizzle in the evening. | |||||||
| SundaySep 27 | 76°F24°C | 61°F16°C | 0.09 in2.4 mm· 32% | 62% | Showers | E 4 mph6 km/h | |
DayMostly cloudy and warm, with a high of 76°F24°C and morning low of 61°F16°C. Light wind from the E around 4 mph6 km/h. 32% chance of showers throughout the day. NightMostly cloudy, with a low around 62°F17°C. Light wind from the ENE around 4 mph7 km/h. 28% chance of drizzle throughout the night. | |||||||
| MondaySep 28 | 81°F27°C | 59°F15°C | 0.01 in0.2 mm· 7% | 31% | Clear | ENE 4 mph6 km/h | |
DayPartly cloudy and warm, with a high of 81°F27°C and morning low of 59°F15°C. Light wind from the ENE around 4 mph6 km/h. NightPartly cloudy, with a low around 62°F16°C. Light wind from the ENE around 4 mph7 km/h. | |||||||
| TuesdaySep 29 | 81°F27°C | 59°F15°C | 0.15 in3.7 mm· 32% | 71% | Light Rain | SSE 7 mph11 km/h | |
DayMostly cloudy and warm, with a high of 81°F27°C and morning low of 59°F15°C. Breezy from the SSE at 7 to 8 mph11 to 13 km/h. 22% chance of light rain throughout the day. NightMostly cloudy, with a low around 61°F16°C. Breezy from the SE at 6 to 8 mph10 to 12 km/h. 32% chance of light rain in the evening. | |||||||
| WednesdaySep 30 | 75°F24°C | 65°F18°C | 0.39 in9.9 mm· 41% | 79% | Light Rain | SW 8 mph13 km/h | |
DayOvercast and warm, with a high of 75°F24°C and morning low of 65°F18°C. Breezy from the SW at 8 to 9 mph13 to 14 km/h. 41% chance of light rain throughout the day. NightMostly cloudy, with a low around 66°F19°C. Breezy from the SSW at 7 to 8 mph12 to 13 km/h. 40% chance of light rain throughout the night. | |||||||
| ThursdayOct 1 | 74°F23°C | 60°F16°C | 0.2 in5.2 mm· 29% | 56% | Showers | W 7 mph11 km/h | |
DayMostly cloudy and warm, with a high of 74°F23°C and morning low of 60°F16°C. Breezy from the W at 7 to 8 mph12 to 13 km/h. 29% chance of showers throughout the day. NightMostly cloudy, with a low around 62°F17°C. Breezy from the W at 7 mph11 km/h. 22% chance of showers throughout the night. | |||||||
| FridayOct 2 | 76°F24°C | 58°F14°C | 0.12 in3.1 mm· 16% | 52% | Showers | SW 6 mph10 km/h | |
DayMostly cloudy and warm, with a high of 76°F24°C and morning low of 58°F14°C. Breezy from the WSW at 7 mph11 km/h. 15% chance of showers throughout the day. NightMostly cloudy, with a low around 60°F16°C. Light wind from the SSW around 6 mph10 km/h. 16% chance of showers throughout the night. | |||||||
| SaturdayOct 3 | 77°F25°C | 59°F15°C | 0.12 in3 mm· 18% | 55% | Drizzle | S 7 mph10 km/h | |
DayMostly cloudy and warm, with a high of 77°F25°C and morning low of 59°F15°C. Breezy from the SSW at 7 to 8 mph11 to 13 km/h. 17% chance of drizzle throughout the day. NightMostly cloudy, with a low around 61°F16°C. Breezy from the S at 6 to 7 mph10 to 11 km/h. 18% chance of drizzle throughout the night. | |||||||
| SundayOct 4 | 74°F23°C | 59°F15°C | 0.16 in4.1 mm· 19% | 52% | Showers | W 7 mph12 km/h | |
DayMostly cloudy and warm, with a high of 74°F23°C and morning low of 59°F15°C. Breezy from the W at 8 to 9 mph12 to 14 km/h. 16% chance of showers throughout the day. NightMostly cloudy, with a low around 61°F16°C. Breezy from the WSW at 7 mph11 km/h. 19% chance of showers throughout the night. | |||||||
| MondayOct 5 | 72°F22°C | 56°F13°C | 0.09 in2.4 mm· 13% | 47% | Drizzle | W 7 mph11 km/h | |
DayPartly cloudy and warm, with a high of 72°F22°C and morning low of 56°F13°C. Breezy from the W at 7 to 8 mph12 to 13 km/h. 13% chance of drizzle throughout the day. NightPartly cloudy, with a low around 58°F14°C. Breezy from the W at 7 mph11 km/h. 11% chance of drizzle throughout the night. | |||||||
| TuesdayOct 6 | 74°F23°C | 55°F13°C | 0.11 in2.8 mm· 13% | 42% | Drizzle | W 7 mph11 km/h | |
DayPartly cloudy and warm, with a high of 74°F23°C and morning low of 55°F13°C. Breezy from the W at 7 to 9 mph12 to 14 km/h. 13% chance of drizzle throughout the day. NightPartly cloudy, with a low around 57°F14°C. Breezy from the W at 7 mph11 km/h. 13% chance of drizzle throughout the night. | |||||||
| WednesdayOct 7 | 72°F22°C | 54°F12°C | 0.04 in1.1 mm· 11% | 37% | Drizzle | NW 7 mph12 km/h | |
DayPartly cloudy and warm, with a high of 72°F22°C and morning low of 54°F12°C. Breezy from the NW at 8 mph12 km/h. Dry air. NightPartly cloudy, with a low around 56°F13°C. Breezy from the NW at 7 mph11 km/h. 11% chance of drizzle overnight. | |||||||
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 →
Coordinates: 38.5200°N, 89.9840°W·Elevation: 157m·Timezone: America/Chicago·Population: 42,034