Local weather forecast

Weather in Union Star, KY

Updated 2026-08-11 12:00 local time · ZIP codes 40171

Sunny
Now84°F

Sunny

High / Low96° / 78°
Rain chance4%
Wind10 mph
Weather alerts

Active alerts

2
Heat Advisory issued August 11 at 4:30AM EDT until August 11 at 9:00PM EDT by NWS Louisville KY

* WHAT...Heat index values near 105 expected. * WHERE...In Indiana, Dubois and Perry Counties. In Kentucky, Hancock, Ohio, Allen, Butler, Logan, Simpson, and Warren Counties. * WHEN...From noon EDT /11 AM CDT/ today to 9 PM EDT /8 PM CDT/ this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Safety instructions

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.

Heat Advisory issued August 11 at 4:30AM EDT until August 11 at 9:00PM EDT by NWS Louisville KY

* WHAT...Heat index values near 105 expected. * WHERE...Crawford and Orange Counties. * WHEN...From noon today to 9 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Safety instructions

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.

Hourly

Next hours

NowSunny84°4% rain
1 PMSunny95°2% rain
2 PMSunny96°2% rain
3 PMSunny96°2% rain
4 PMSunny96°2% rain
5 PMSunny95°2% rain
6 PMSunny94°1% rain
7 PMSunny93°2% rain
8 PMSunny90°2% rain
9 PMClear87°3% rain
10 PMClear86°3% rain
11 PMClear84°4% rain
Forecast

3-day weather forecast

Today2026-08-11
Sunny
96° 78°Sunny
Rain 4%Gust 13 mph
Tomorrow2026-08-12
Sunny
97° 71°Sunny
Rain 57%Gust 15 mph
Thursday2026-08-13
Patchy rain nearby
88° 70°Patchy rain nearby
Rain 82%Gust 12 mph
Conditions

Weather details

Feels like89°F
Humidity84%
Pressure30.03 inHg
Visibility10 mi
Wind10 mph WSW
Wind gusts12 mph
Precipitation0.00 in
UV index4
Daylight

Sunrise, sunset and moon

Sunrise05:57 AM
Sunset07:44 PM
Moonrise04:01 AM
Moon phaseNew Moon
Practical guide

Weather insights for today

Umbrella not essential

Rain chance stays relatively low over the next 12 hours (up to 4%).

Choose light, breathable clothing

It feels like 89°F with winds near 10 mph.

Best window: 8 PM

90°F, 2% rain chance and 6 mph wind.

Allow a little extra driving time

Visibility is around 10 mi; gusts may reach 15 mph.

Run with a few weather adjustments

Current temperature is 84°F, wind 10 mph, rain chance up to 4%.

Moderate UV protection recommended

UV index is 4. Sunscreen and sunglasses are sensible for longer outdoor time.

Union Star weather today

Sunny and 84°F in Union Star, KY. Today's high is 96°F with a 4% rain chance. Winds are around 10 mph with gusts near 12 mph. Relative humidity is 84%, pressure is 30.03 inHg, and visibility is about 10 miles.

Tonight and tomorrow in Union Star

Sunrise is at 05:57 AM and sunset is at 07:44 PM. Tomorrow's forecast calls for Sunny with a high near 97°F and a low near 71°F. The maximum rain chance is 57%.

Nearby

Weather near Union Star

Kentucky

Popular cities in Kentucky

View state page →