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Local weather forecast

Weather in Patterson, IL

Updated 2026-09-26 10:45 local time · ZIP codes 62078

Overcast
Now63°F

Overcast

High / Low68° / 59°
Rain chance36%
Wind7 mph
Weather alerts

Active alerts

2
Flood Warning issued September 25 at 12:14PM CDT until September 29 at 7:00AM CDT by NWS St Louis MO

...The Flood Warning is extended for the following rivers in Illinois...Missouri... Mississippi River at Louisiana. Mississippi River at Hannibal. ...The Flood Warning continues for the following rivers in Illinois...Missouri... Mississippi River at Clarksville. ...The Flood Warning is cancelled for the following rivers in Illinois...Missouri... Mississippi River at Saverton. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Mississippi River at Clarksville. * WHEN...Until Tuesday morning. * IMPACTS...At 25.5 feet, State Route P east of Elsberry begins flooding just east of the levee. * ADDITIONAL DETAILS... - At 12:00 PM CDT Friday the stage was 25.2 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 12:00 PM CDT Friday was 25.3 feet. - Forecast...The river is expected to rise to a crest of 25.7 feet tomorrow morning. It will then fall below flood stage early Monday morning. - Flood stage is 25.0 feet.

Safety instructions

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx

Flood Warning issued September 25 at 8:50PM CDT until September 29 at 3:00AM CDT by NWS St Louis MO

...The Flood Warning continues for the following rivers in Illinois...Missouri... Mississippi River at Louisiana. Mississippi River at Hannibal. Mississippi River at Clarksville. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Mississippi River at Clarksville. * WHEN...Until late Monday night. * IMPACTS...At 25.5 feet, State Route P east of Elsberry begins flooding just east of the levee. * ADDITIONAL DETAILS... - At 8:30 PM CDT Friday the stage was 25.5 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:30 PM CDT Friday was 25.5 feet. - Forecast...The river is expected to rise to a crest of 25.6 feet tomorrow morning. It will then fall below flood stage late Sunday evening. - Flood stage is 25.0 feet.

Safety instructions

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx

Hourly

Next hours

NowOvercast63°12% rain
12 PMOvercast68°10% rain
1 PMOvercast67°11% rain
2 PMOvercast67°11% rain
3 PMOvercast68°10% rain
4 PMPatchy rain nearby68°11% rain
5 PMPatchy rain nearby67°19% rain
6 PMLight rain shower65°22% rain
7 PMPatchy rain nearby63°17% rain
8 PMOvercast61°16% rain
9 PMOvercast61°16% rain
10 PMPartly Cloudy60°8% rain
Forecast

3-day weather forecast

Today2026-09-26
Overcast
68° 59°Overcast
Rain 36%Gust 8 mph
Tomorrow2026-09-27
Partly Cloudy
77° 59°Partly Cloudy
Rain 8%Gust 7 mph
Monday2026-09-28
Sunny
78° 57°Sunny
Rain 2%Gust 7 mph
Conditions

Weather details

Feels like58°F
Humidity51%
Pressure30.16 inHg
Visibility6 mi
Wind7 mph ESE
Wind gusts10 mph
Precipitation0.00 in
UV index0
Daylight

Sunrise, sunset and moon

Sunrise06:53 AM
Sunset06:53 PM
Moonrise06:43 PM
Moon phaseFull Moon
Next 24 hours

Key weather changes ahead

Warmest hour3 PM · 68°F
Coolest hour4 AM · 59°F
Highest rain chance6 PM · 22%
Strongest gusts11 PM · 12 mph
Practical guide

Weather insights for today

Umbrella not essential

Rain chance stays relatively low over the next 12 hours (up to 22%).

Light layers should work

It feels like 58°F with winds near 7 mph.

Best window: 3 PM

68°F, 10% rain chance and 8 mph wind.

Driving conditions look generally normal

Visibility is around 6 mi; gusts may reach 10 mph.

Good conditions for an easy run

Current temperature is 63°F, wind 7 mph, rain chance up to 22%.

Low UV protection needs

UV index is 0.

Local weather characteristics in Patterson

Illinois has four distinct seasons with hot, humid summers, cold winters, strong frontal changes and frequent spring and summer thunderstorms.

Patterson is part of the Midwest weather region. The forecast point is near 39.48°N latitude and 90.48°W longitude. Local temperature, wind and precipitation can still differ from nearby places, especially where terrain, coastlines or urban development create small-scale weather changes.

Patterson weather today

Overcast and 63°F in Patterson, IL. Today's high is 68°F with a 36% rain chance. Winds are around 7 mph with gusts near 10 mph. Relative humidity is 51%, pressure is 30.16 inHg, and visibility is about 6 miles.

Tonight and tomorrow in Patterson

Sunrise is at 06:53 AM and sunset is at 06:53 PM. Tomorrow's forecast calls for Partly Cloudy with a high near 77°F and a low near 59°F. The maximum rain chance is 8%.

Nearby

Weather near Patterson

Hillview, IL~4 mi awayWhite Hall, IL~6 mi awayAlsey, IL~6 mi awayPearl, IL~9 mi awayRoodhouse, IL~9 mi awayManchester, IL~9 mi awayWinchester, IL~10 mi awayMilton, IL~11 mi away
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