- June 1 - Royal Family of Nepal massacred.
- June 5—9 - Houston, Texas is devastated by flooding when Tropical Storm Allison dumps 36 inches (914 mm) of rain on the city. Damage exceeds five billion American dollars.
- June 7 - Tony Blair's Labour Party elected for second term in UK General Election
- June 11 - Oklahoma City bomber Timothy McVeigh executed in Indiana
- June 19 - 23 people killed and 11 wounded by an American missile hitting a soccer field in northern Iraq, county of Tel Afr
- June 20 - Andrea Yates drowns her five children in a bathtub and confesses to her crime.
- June 21 - Total solar eclipse
- June 21 - Actor Carroll O'Connor dies.
- June 29 - Artist and writer Mary Barnes dies.