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Peak hurricane season is this week. Here's when the next storm may form. Chevron right

Union, MO

91°F
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Union

Missouri

91°
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Union, MO Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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2 PM

92°
RealFeel® 99°
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.
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rain drop 0%
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Partly sunny
alerts

Air Quality Alert

3:40 PM Monday - 1:45 AM Wednesday

RealFeel Shade™92°

Heat Index95°

WindSSE 6 mph

Air QualityPoor

Max UV Index6.0 (High)

Wind Gusts9 mph

Humidity41%

Indoor Humidity41% (Humid)

Dew Point66° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover32%

Visibility10 mi

Cloud Ceiling30000 ft

3 PM

94°
RealFeel® 100°
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
alerts

Air Quality Alert

3:40 PM Monday - 1:45 AM Wednesday

RealFeel Shade™94°

Heat Index97°

WindSSE 6 mph

Air QualityPoor

Max UV Index4.6 (Moderate)

Wind Gusts9 mph

Humidity38%

Indoor Humidity38% (Humid)

Dew Point65° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover7%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

94°
RealFeel® 98°
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
alerts

Air Quality Alert

3:40 PM Monday - 1:45 AM Wednesday

RealFeel Shade™93°

Heat Index96°

WindSSE 7 mph

Air QualityPoor

Max UV Index3.4 (Moderate)

Wind Gusts10 mph

Humidity39%

Indoor Humidity39% (Humid)

Dew Point66° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

92°
RealFeel® 95°
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
alerts

Air Quality Alert

3:40 PM Monday - 1:45 AM Wednesday

RealFeel Shade™92°

Heat Index95°

WindSE 6 mph

Air QualityPoor

Max UV Index2.2 (Low)

Wind Gusts12 mph

Humidity42%

Indoor Humidity42% (Humid)

Dew Point66° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover8%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

91°
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
alerts

Air Quality Alert

3:40 PM Monday - 1:45 AM Wednesday

RealFeel Shade™92°

Heat Index94°

WindSE 6 mph

Air QualityPoor

Max UV Index1.2 (Low)

Wind Gusts10 mph

Humidity46%

Indoor Humidity46% (Very Humid)

Dew Point67° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover3%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

87°
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%
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Sunny
alerts

Air Quality Alert

3:40 PM Monday - 1:45 AM Wednesday

RealFeel Shade™89°

Heat Index91°

WindSE 6 mph

Air QualityPoor

Max UV Index0.2 (Low)

Wind Gusts9 mph

Humidity52%

Indoor Humidity52% (Very Humid)

Dew Point68° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

84°
RealFeel® 86°
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%
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Clear
alerts

Air Quality Alert

3:40 PM Monday - 1:45 AM Wednesday

Heat Index88°

WindSE 6 mph

Air QualityPoor

Wind Gusts9 mph

Humidity61%

Indoor Humidity61% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

81°
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
Clear
alerts

Air Quality Alert

3:40 PM Monday - 1:45 AM Wednesday

Heat Index84°

WindSSE 6 mph

Air QualityPoor

Wind Gusts9 mph

Humidity66%

Indoor Humidity66% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

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

Air Quality Alert

3:40 PM Monday - 1:45 AM Wednesday

WindSSE 6 mph

Air QualityPoor

Wind Gusts9 mph

Humidity71%

Indoor Humidity71% (Very Humid)

Dew Point68° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

76°
RealFeel® 78°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Clear
alerts

Air Quality Alert

3:40 PM Monday - 1:45 AM Wednesday

WindSSE 6 mph

Air QualityPoor

Wind Gusts9 mph

Humidity75%

Indoor Humidity75% (Very Humid)

Dew Point68° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover1%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for Union

AccuWeather's hourly forecast for Union provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 92° with a RealFeel® of 99°, partly sunny 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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Weather Near Union:

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  • St. Charles, MO
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