Local Forecast

Waterloo, IL Weather Forecast & Alerts

Current conditions, 5-day forecast, active weather alerts for Waterloo, IL

Active Alerts 3 active

Hour-by-Hour  Current Observation

Tuesday 4:05 PM CDTTuesday 4:05 PM

°F °C
Regional Observations →
98°F

Clear

  • 96° / 75° High / Low
  • 102° Feels Like
  • 0% Chance of Rain

Wind

6 mph

SE

UV Index

6

High

Humidity

35%

Dew 66°F

Sun

6:31 AM · 7:29 PM

Rise · Set

Source: CAHOKIA/ST LOUIS (KCPS). Slider scrubs the next 12 hours.

5-Day Outlook

Through Saturday

Local Radar →

Today

96° 75°

Sunny

Overnight: Mostly Clear

Detailed forecast

Today

Sunny, with a high near 96. Heat index values as high as 102. South wind 0 to 3 mph.

Night

Clear, with a low around 75. Heat index values as high as 100. South wind around 6 mph.

Wednesday

98° 77°

Mostly Sunny

Overnight: Mostly Clear

Detailed forecast

Wednesday

Sunny, with a high near 96. Heat index values as high as 102. Southwest wind around 6 mph.

Night

Mostly clear, with a low around 76. South wind around 6 mph.

Thursday

98° 77°

Mostly Sunny

Overnight: Clear

Detailed forecast

Thursday

Sunny, with a high near 97. Southwest wind around 6 mph.

Night

Mostly clear, with a low around 76.

Friday

98° 77°

Mostly Sunny

Overnight: Mostly Clear

Detailed forecast

Friday

Sunny, with a high near 97.

Night

Mostly clear, with a low around 75.

Saturday

96° 73°

Partly Sunny

Overnight: Slight Chance of Showers

Detailed forecast

Saturday

Sunny, with a high near 96.

Night

A slight chance of rain showers after 1am. Partly cloudy, with a low around 73. Chance of precipitation is 20%.

Waterloo, IL Weather Analysis Tools