Today | Weather | Tuesday, June 30, 2026
Active Weather Warnings

Weather in Ann Arbor, Michigan

04:25 PM
Now
Cloudy Weather
95° F
Feels Like 108°
Precipitation 0 %
Wind 12 mph
UV Index (0 - 11+) 5
Humidity 59 %
Today
Hot Day
Day 95°
Night 73°
Precipitation 0 %
Wind 12 mph
UV Index (0 - 11+) 10

Warning: High UV Index Today: 10

High risk of harm from unprotected sun exposure. Take precautions: wear a hat, sunglasses, and apply sunscreen regularly if you’ll be outdoors for extended periods.

Ann Arbor Weather Forecast Updated

30 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (June 30, 2025)
Stormy Weather

Day

86°

Night

66°

Wind

8 mph

UV Index

5

Precipitation

100 %

Air Quality in Ann Arbor

NOW
33 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 5.22 µg/m³
PM10 6.49 µg/m³
O3 0.035 ppm
NO2 0.3 ppb
SO2 0.1 ppb
CO 0.09 ppm
NH3 1.26 µg/m³
NO 0.14 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.55.22 µg/m³
PM106.49 µg/m³
O369.61 µg/m³
NO20.59 µg/m³
SO20.37 µg/m³
CO106.43 µg/m³
NH31.26 µg/m³
NO0.14 µg/m³

Weather Alerts and Warnings for Ann Arbor

Severe Future Likely

Extreme Heat Watch

Extreme Heat Watch issued June 29 at 3:20AM EDT until July 2 at 8:00PM EDT by NWS Detroit/Pontiac MI
Jun 30, 12:00 PM Jul 2, 8:00 PM
WHAT: Dangerously hot conditions with heat index values exceeding
105 degrees.

WHERE: A portion of southeast Michigan.

WHEN: From Tuesday afternoon through Thursday evening.

IMPACTS: Heat related illnesses increase significantly during
extreme heat and high humidity events.

ADDITIONAL DETAILS: Extended period of hot and humid conditions
expected Tuesday through at least Thursday. High temperatures
reaching the mid 90s to near 100 degrees. This will lead to heat
index values of 105 degrees or greater each day. Little relief
overnight with low temperatures each night in the low to mid 70s.
+ Read More
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Monitor the latest forecasts and warnings for updates. Check with local emergency management officials for information on cooling center availability.
Updated: Jun 29, 12:42 PM Source: NWS Alert
Severe Expected Likely

Extreme Heat Warning

Extreme Heat Warning issued June 30 at 3:50PM EDT until July 2 at 8:00PM EDT by NWS Detroit/Pontiac MI
Jun 30, 3:50 PM Jul 2, 8:00 PM
WHAT: Dangerously hot conditions with heat index exceeding 105 to
near 110 degrees through the mid week period.

WHERE: All of southeast Michigan.

WHEN: Until 8 PM EDT Thursday.

IMPACTS: Heat related illnesses increase significantly during
extreme heat and high humidity events.

ADDITIONAL DETAILS: An extended period of hot and humid
conditions is ongoing and peaks Wednesday through at least
Thursday. High temperatures reach the mid 90s to near 100 degrees
and combine with high humidity to result in heat index of 105
degrees or greater each day. Little relief occurs at night as low
temperatures only fall into the mid and upper 70s with nighttime
heat index around 80.
+ Read More
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. 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. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. Check with local emergency management officials for information on cooling center availability.
Updated: Jun 30, 3:54 PM Source: NWS Alert