Frost on low-lying lawns this morning; sun returns and highs near 57°F today. Warmer Friday and a sunny weekend ahead.

Phoenix will reach the upper 90s Thursday and could top 100°F Friday. City cooling centers and safety tips are available for anyone who needs relief.

Warm, mostly sunny Thursday with highs near 78°F, then a cold front brings rain and gusty winds Friday. Boaters face advisories for the Potomac and Chesapeake.

An early, aggressive surge of biting black flies is swarming San Gabriel Valley foothills; vector crews have stepped up treatments and officials warn residents to use repellents.

Low humidity and a strong ridge will push Las Vegas into the low 90s today; daily record streaks are on the line. Cooling stations are listed for those who need relief.

Highs climb near 90°F Thursday with gusty southerly winds. Elevated fire danger and a Travis County burn ban are in effect.

Sunny, unusually warm Thursday with highs near 85°F and gusty winds. Cooler, breezy weekend with a chance of Friday showers.

Thunderstorms and heavy rain are likely Thursday night in Pittsburgh, with localized flooding possible in low-lying areas.

Clear skies and low-60s this morning give way to a short cool spell, then a jump into near‑record warmth this weekend.

Clear mornings, sunny afternoons. Highs near 79 today and up to 85 by Sunday.

More than 6.2 million juvenile Chinook were released from Coleman hatchery this week, but low, warm flows on the Sacramento could doom many before they reach the ocean.

Mostly sunny and near‑90°F Thursday with gusty SSE winds. Friday brings a frontal shift and locally elevated fire‑weather concerns in spots.

Hot Friday ahead with highs near 88°F. Cool, dry weekend with gusty winds and fire‑weather concerns.