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Summer forecast 2026: Get ready for widespread heat as El Niño strengthens.

Frost, record-challenging chill is headed for the eastern US. See how cold it will get.

DeForest, WI

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DeForest, WI Weather

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Hourly

10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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3 PM

50°

RealFeel® 44°

Chilly

RealFeel Guide

Chilly

40° to 52°

Jacket or sweater is recommended.

63%

Rain

RealFeel Shade™41°

WindNW 10 mph

Air QualityFair

Max UV Index2.3 (Low)

Wind Gusts16 mph

Humidity60%

Indoor Humidity31% (Slightly Dry)

Dew Point36° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Rain0.03 in

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

52°

RealFeel® 48°

Chilly

RealFeel Guide

Chilly

40° to 52°

Jacket or sweater is recommended.

58%

Rain

RealFeel Shade™44°

WindNW 12 mph

Air QualityFair

Max UV Index2.9 (Moderate)

Wind Gusts16 mph

Humidity54%

Indoor Humidity30% (Slightly Dry)

Dew Point36° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover76%

Rain0.01 in

Visibility6 mi

Cloud Ceiling30000 ft

5 PM

51°

RealFeel® 48°

Chilly

RealFeel Guide

Chilly

40° to 52°

Jacket or sweater is recommended.

49%

Mostly cloudy

RealFeel Shade™45°

WindNW 12 mph

Air QualityFair

Max UV Index2.1 (Low)

Wind Gusts16 mph

Humidity54%

Indoor Humidity43% (Slightly Dry)

Dew Point35° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

50°

RealFeel® 46°

Chilly

RealFeel Guide

Chilly

40° to 52°

Jacket or sweater is recommended.

49%

Mostly cloudy

RealFeel Shade™44°

WindNW 10 mph

Air QualityFair

Max UV Index1.4 (Low)

Wind Gusts15 mph

Humidity54%

Indoor Humidity42% (Slightly Dry)

Dew Point34° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

49°

RealFeel® 42°

Chilly

RealFeel Guide

Chilly

40° to 52°

Jacket or sweater is recommended.

53%

Rain

RealFeel Shade™42°

WindNW 10 mph

Air QualityFair

Max UV Index0.6 (Low)

Wind Gusts13 mph

Humidity55%

Indoor Humidity42% (Slightly Dry)

Dew Point33° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover76%

Rain0.01 in

Visibility6 mi

Cloud Ceiling30000 ft

8 PM

49°

RealFeel® 44°

Chilly

RealFeel Guide

Chilly

40° to 52°

Jacket or sweater is recommended.

8%

Partly cloudy

WindNW 8 mph

Air QualityFair

Wind Gusts9 mph

Humidity52%

Indoor Humidity41% (Slightly Dry)

Dew Point32° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover39%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

46°

RealFeel® 43°

Chilly

RealFeel Guide

Chilly

40° to 52°

Jacket or sweater is recommended.

5%

Mostly clear

WindNW 7 mph

Air QualityFair

Wind Gusts8 mph

Humidity58%

Indoor Humidity41% (Slightly Dry)

Dew Point33° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

44°

RealFeel® 41°

Chilly

RealFeel Guide

Chilly

40° to 52°

Jacket or sweater is recommended.

5%

Mostly clear

WindNW 6 mph

Air QualityFair

Wind Gusts7 mph

Humidity64%

Indoor Humidity41% (Slightly Dry)

Dew Point33° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

43°

RealFeel® 40°

Chilly

RealFeel Guide

Chilly

40° to 52°

Jacket or sweater is recommended.

5%

Mostly clear

WindNW 6 mph

Air QualityFair

Wind Gusts7 mph

Humidity68%

Indoor Humidity41% (Slightly Dry)

Dew Point33° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for DeForest

AccuWeather's hourly forecast for DeForest provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 50° with a RealFeel® of 44°, rain with a 63% chance of precipitation. Each hourly forecast includes wind speed, humidity, air quality, UV index, and the AccuLumen Brightness Index™, AccuWeather's measure of perceived outdoor light intensity. Forecasts are generated by proprietary systems developed by AccuWeather meteorologists since 1962.

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