Live Weather & Forecast

Weather in Winchester

Q: What is the current weather in Winchester?

Current conditions in Winchester: Overcast, temperature 20°C, humidity 65%.

Q: What is the best time to visit Winchester?

The best time to visit Winchester is typically June – September. Warm, dry summers — ideal for outdoor activities.

Q: What are the GPS coordinates used for the weather forecast in Winchester?

The weather forecast for Winchester uses coordinates 39.6297, -90.4563.

Illinois, United States · Real-time conditions & 3-day outlook

20^°C

Feels like 20°C

68°F / Feels 68°F

Overcast

Winchester, Illinois

🌙 Nighttime

Updated: 2026-04-12 21:15

💧

Humidity

65%

💨

Wind

32.8 km/h SW

🌬️

Wind Gust

51.9 km/h

🌡️

Pressure

1011 mb

👁️

Visibility

11 km

☀️

UV Index

0 (Low)

🌧️

Precipitation

0.5 mm

☁️

Cloud Cover

100%

💦

Dew Point

14.1°C

🌐

Wind Degree

219°

Air Quality Index

US EPA: Good UK DEFRA: Low (1)

134.9 μg/m³

NO₂

3.7 μg/m³

O₃

101 μg/m³

SO₂

1.8 μg/m³

PM 2.5

4.1 μg/m³

PM 10

4.3 μg/m³

Weather Alerts 5

Met · Severe · Immediate

Flood Warning issued April 12 at 11:40AM CDT by NWS Lincoln IL

...The Flood Warning continues for the following rivers in Illinois... Illinois River near Havana affecting Fulton, Cass and Mason Counties. Illinois River at Beardstown affecting Brown, Morgan, Cass and Schuyler Counties. .The following forecasts are based on observed precipitation, soil moisture conditions, and forecast precipitation. * WHAT...Minor flooding is occurring and minor flooding i...

Caution is urged when walking near riverbanks. Persons with interests along this river need to remain aware of the latest forecasts and associated flood risk for their area. Stay tuned for further updates on this flooding situation. Additional information is available at www.weather.gov.

Effective: 2026-04-12T11:40:00-05:00 · Expires: 2026-04-13T03:45:00-05:00

Met · Severe · Immediate

Flood Warning issued April 11 at 9:46PM CDT until April 18 at 1:00PM CDT by NWS St Louis MO

...The Flood Warning continues for the following rivers in Missouri...Illinois... Mississippi River at Hannibal. Mississippi River at Clarksville. Mississippi River at Louisiana. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is forecast. * WHERE...Mississippi River at Hannibal. * WHEN...From late Sunday night to...

Motorists should not attempt to drive around barricades or drive cars through flooded areas. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx

Effective: 2026-04-11T21:46:00-05:00 · Expires: 2026-04-13T10:00:00-05:00

Met · Severe · Immediate

Flood Warning issued April 11 at 9:46PM CDT by NWS St Louis MO

...The Flood Warning continues for the following rivers in Missouri...Illinois... Mississippi River at Hannibal. Mississippi River at Clarksville. Mississippi River at Louisiana. 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 Louisiana. *...

Effective: 2026-04-11T21:46:00-05:00 · Expires: 2026-04-13T10:00:00-05:00

Met · Severe · Immediate

Flood Warning issued April 12 at 11:41AM CDT until April 18 at 1:00PM CDT by NWS St Louis MO

...The Flood Warning continues for the following river in Missouri and Illinois... Mississippi River at Hannibal Clarksville Louisiana River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is forecast. * WHERE...Mississippi River at Hannibal. * WHEN...From Monday morning to Saturday afternoon. * IMPACTS...At 17.0 feet...

Effective: 2026-04-12T11:41:00-05:00 · Expires: 2026-04-13T23:45:00-05:00

Met · Severe · Immediate

Flood Warning issued April 12 at 11:41AM CDT until April 20 at 7:00AM CDT by NWS St Louis MO

...The Flood Warning continues for the following river in Missouri and Illinois... Mississippi River at Hannibal Clarksville Louisiana 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 Louisiana. * WHEN...Until Monday, April 20. * ADDITION...

Effective: 2026-04-12T11:41:00-05:00 · Expires: 2026-04-13T23:45:00-05:00

Today's Hourly Forecast

24-hour breakdown for Winchester, Illinois

12 AM

16°

Clear

💧 81% 💨 19.4 km/h

1 AM

16°

Clear

💧 81% 💨 19.8 km/h

2 AM

16°

Clear

💧 79% 💨 19.8 km/h

3 AM

16°

Clear

💧 79% 💨 20.9 km/h

4 AM

16°

Clear

💧 78% 💨 19.8 km/h

5 AM

16°

Clear

💧 79% 💨 19.8 km/h

6 AM

15°

Clear

💧 81% 💨 20.2 km/h

7 AM

16°

Sunny

💧 82% 💨 20.2 km/h

8 AM

18°

Sunny

💧 74% 💨 22.3 km/h

9 AM

20°

Sunny

💧 64% 💨 24.8 km/h

10 AM

23°

Sunny

💧 57% 💨 27.4 km/h

11 AM

26°

Sunny

💧 51% 💨 31 km/h

12 PM

28°

Sunny

💧 46% 💨 29.5 km/h

1 PM

28°

Sunny

💧 41% 💨 31.3 km/h

2 PM

28°

Sunny

💧 43% 💨 30.2 km/h

3 PM

27°

Sunny

💧 43% 💨 30.2 km/h

4 PM

25°

Patchy rain nearby

💧 47% 💨 31.3 km/h 🌧️ 66%

5 PM

24°

Patchy rain nearby

💧 58% 💨 36.4 km/h 🌧️ 100%

6 PM

24°

Patchy rain nearby

💧 66% 💨 31 km/h 🌧️ 100%

7 PM

22°

Sunny

💧 63% 💨 34.6 km/h

8 PM

20°

Clear

💧 61% 💨 38.9 km/h

9 PM

20°

Overcast

💧 65% 💨 32.8 km/h 🌧️ 100%

10 PM

19°

Partly Cloudy

💧 81% 💨 28.4 km/h

11 PM

19°

Overcast

💧 86% 💨 24.8 km/h

3-Day Forecast

Daily overview for Winchester, Illinois

Today

Patchy rain nearby

30° / 15°

🌧️ 89% chance of rain

💧 Avg. humidity: 66%

💨 Max wind: 38.9 km/h

🌧️ Total precip: 0.85 mm

☀️ UV Index: 1.4

🌅 Sunrise: 06:29 AM

🌇 Sunset: 07:37 PM

🌙 Waning Crescent

🌑 Moon: 33% lit

Mon, Apr 13

Thundery outbreaks in nearby

24° / 18°

🌧️ 0% chance of rain

💧 Avg. humidity: 86%

💨 Max wind: 27.7 km/h

🌧️ Total precip: 0.01 mm

☀️ UV Index: 1.7

🌅 Sunrise: 06:27 AM

🌇 Sunset: 07:38 PM

🌙 Waning Crescent

🌑 Moon: 23% lit

Tue, Apr 14

Thundery outbreaks in nearby

26° / 21°

🌧️ 0% chance of rain

💧 Avg. humidity: 78%

💨 Max wind: 31.7 km/h

🌧️ Total precip: 0 mm

☀️ UV Index: 1.9

🌅 Sunrise: 06:26 AM

🌇 Sunset: 07:39 PM

🌙 Waning Crescent

🌑 Moon: 15% lit

Best Time to Visit Winchester

Plan your trip to Winchester, United States around the most favorable weather conditions.

Peak Season

June – September

Warm, dry summers — ideal for outdoor activities.

Shoulder Season

April – May, October

Fewer crowds, moderate prices, mild weather.

Off Season

November – March

Cooler temperatures; some regions may experience rain or snow.

← Back to Winchester 🗓 View Holidays 2026

Frequently Asked Questions

What is the current weather in Winchester?

Current conditions in Winchester: Overcast, temperature 20°C, humidity 65%.

What is the best time to visit Winchester?

The best time to visit Winchester is typically June – September. Warm, dry summers — ideal for outdoor activities.

What is the climate like in Winchester?

Winchester is located at approximately 39.6° latitude. It has a temperate climate with warm summers and cold winters.

Does it rain a lot in Winchester?

The wettest period in Winchester is typically during November – March. Cooler temperatures; some regions may experience rain or snow.

What should I pack for a trip to Winchester?

For visits to Winchester during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.

What country is Winchester in?

Winchester is located in United States, in the state of Illinois.

What are the public holidays in Winchester in 2026?

View the 2026 public holidays for Winchester on our Holidays page.

What are the GPS coordinates used for the weather forecast in Winchester?

The weather forecast for Winchester uses coordinates 39.6297, -90.4563.