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St. Jacob, IL

66°F
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St. Jacob

Illinois

66°
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St. Jacob, IL Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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2 AM

64°
RealFeel® 63°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Clear

WindS 5 mph

Air QualityFair

Wind Gusts6 mph

Humidity86%

Indoor Humidity74% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover2%

Visibility10 mi

Cloud Ceiling30000 ft

3 AM

63°
RealFeel® 62°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Clear

WindSSW 5 mph

Air QualityFair

Wind Gusts6 mph

Humidity89%

Indoor Humidity74% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

4 AM

62°
RealFeel® 61°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Clear

WindSSW 5 mph

Air QualityFair

Wind Gusts6 mph

Humidity93%

Indoor Humidity74% (Slightly Humid)

Dew Point60° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

5 AM

61°
RealFeel® 60°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Clear

WindSSW 5 mph

Air QualityPoor

Wind Gusts6 mph

Humidity95%

Indoor Humidity74% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover2%

Visibility10 mi

Cloud Ceiling30000 ft

6 AM

60°
RealFeel® 59°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Clear

WindSSW 5 mph

Air QualityPoor

Wind Gusts6 mph

Humidity98%

Indoor Humidity74% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover7%

Visibility10 mi

Cloud Ceiling30000 ft

7 AM

59°
RealFeel® 59°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear

WindSSW 5 mph

Air QualityPoor

Wind Gusts6 mph

Humidity100%

Indoor Humidity73% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

8 AM

63°
RealFeel® 63°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Sunny

RealFeel Shade™63°

WindSSW 6 mph

Air QualityPoor

Max UV Index0.5 (Low)

Wind Gusts8 mph

Humidity89%

Indoor Humidity76% (Slightly Humid)

Dew Point60° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover9%

Visibility10 mi

Cloud Ceiling30000 ft

9 AM

70°
RealFeel® 70°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Sunny

RealFeel Shade™68°

WindSW 7 mph

Air QualityPoor

Max UV Index1.4 (Low)

Wind Gusts12 mph

Humidity72%

Indoor Humidity72% (Slightly Humid)

Dew Point61° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover7%

Visibility10 mi

Cloud Ceiling30000 ft

10 AM

77°
RealFeel® 78°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Sunny

RealFeel Shade™75°

WindSW 9 mph

Air QualityPoor

Max UV Index2.3 (Low)

Wind Gusts15 mph

Humidity58%

Indoor Humidity58% (Slightly Humid)

Dew Point61° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover3%

Visibility10 mi

Cloud Ceiling30000 ft

11 AM

83°
RealFeel® 83°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 0%
Chevron down
Sunny

RealFeel Shade™80°

Heat Index83°

WindSW 10 mph

Air QualityPoor

Max UV Index3.2 (Moderate)

Wind Gusts17 mph

Humidity48%

Indoor Humidity48% (Slightly Humid)

Dew Point62° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

12 PM

86°
RealFeel® 87°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 0%
Chevron down
Sunny

RealFeel Shade™83°

Heat Index86°

WindSW 12 mph

Air QualityPoor

Max UV Index3.9 (Moderate)

Wind Gusts21 mph

Humidity44%

Indoor Humidity44% (Slightly Humid)

Dew Point62° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

1 PM

89°
RealFeel® 89°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 0%
Chevron down
Sunny

RealFeel Shade™86°

Heat Index89°

WindSW 13 mph

Air QualityPoor

Max UV Index4.1 (Moderate)

Wind Gusts23 mph

Humidity40%

Indoor Humidity40% (Slightly Humid)

Dew Point61° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

92°
RealFeel® 92°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Sunny

RealFeel Shade™88°

Heat Index92°

WindSW 14 mph

Air QualityPoor

Max UV Index3.9 (Moderate)

Wind Gusts24 mph

Humidity36%

Indoor Humidity36% (Slightly Humid)

Dew Point61° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover3%

Visibility10 mi

Cloud Ceiling30000 ft

3 PM

94°
RealFeel® 93°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Sunny

RealFeel Shade™91°

Heat Index94°

WindSW 14 mph

Air QualityPoor

Max UV Index3.2 (Moderate)

Wind Gusts25 mph

Humidity33%

Indoor Humidity33% (Slightly Humid)

Dew Point61° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover7%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

92°
RealFeel® 91°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny

RealFeel Shade™89°

Heat Index92°

WindSW 13 mph

Air QualityPoor

Max UV Index2.3 (Low)

Wind Gusts27 mph

Humidity34%

Indoor Humidity34% (Slightly Humid)

Dew Point60° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

91°
RealFeel® 89°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 0%
Chevron down
Sunny

RealFeel Shade™88°

Heat Index91°

WindSW 12 mph

Air QualityPoor

Max UV Index1.4 (Low)

Wind Gusts23 mph

Humidity36%

Indoor Humidity36% (Slightly Humid)

Dew Point61° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover8%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

87°
RealFeel® 85°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 0%
Chevron down
Sunny

RealFeel Shade™85°

Heat Index87°

WindSSW 9 mph

Air QualityPoor

Max UV Index0.5 (Low)

Wind Gusts17 mph

Humidity42%

Indoor Humidity42% (Slightly Humid)

Dew Point62° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover3%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

83°
RealFeel® 81°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Clear

Heat Index84°

WindSSW 7 mph

Air QualityPoor

Wind Gusts13 mph

Humidity50%

Indoor Humidity50% (Humid)

Dew Point63° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

80°
RealFeel® 78°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Clear

Heat Index80°

WindSSW 7 mph

Air QualityPoor

Wind Gusts12 mph

Humidity57%

Indoor Humidity57% (Humid)

Dew Point63° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

77°
RealFeel® 75°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Clear

WindSSW 7 mph

Air QualityPoor

Wind Gusts10 mph

Humidity62%

Indoor Humidity62% (Humid)

Dew Point63° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

74°
RealFeel® 72°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Clear

WindSSW 7 mph

Air QualityPoor

Wind Gusts9 mph

Humidity67%

Indoor Humidity67% (Humid)

Dew Point63° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

72°
RealFeel® 70°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Clear

WindSSW 7 mph

Air QualityPoor

Wind Gusts9 mph

Humidity69%

Indoor Humidity69% (Slightly Humid)

Dew Point62° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for St. Jacob

AccuWeather's hourly forecast for St. Jacob provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 64° with a RealFeel® of 63°, clear with a 0% 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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