Reno broke a daily heat record Sunday, May 10 as Northern Nevada entered a stretch of unusually hot weather expected to continue through Tuesday.

The Reno-Tahoe International Airport recorded a high of 92 degrees Sunday, breaking the previous record of 88 degrees for the date set in 1934, according to the National Weather Service in Reno. South Lake Tahoe also broke a daily record with a high of 79 degrees, surpassing the previous record of 75 degrees set in 2025.

The weather service said Sunday marked Reno’s first 90-degree day of 2026. On average, the first 90-degree day in Reno arrives around June 7.

What’s in the Reno-Tahoe forecast this week?

Forecasters said temperatures will remain near record highs through Tuesday as a strong high-pressure ridge lingers over the western United States.

Highs across northwestern Nevada valleys are expected to reach the upper 80s to middle 90s, roughly 15 to 20 degrees above seasonal averages.

Current records that could still be tied or broken include:

Reno: 90 degrees Monday and 89 degrees Tuesday
South Lake Tahoe: 78 degrees Monday and 79 degrees Tuesday

NWS said minor to moderate heat risk is expected across the region through Tuesday, especially at lower elevations.

“Please remember to stay hydrated and limit exposure to the sun during the warmest parts of the day, especially if you have outdoor plans and are sensitive to heat,” forecasters said in an area forecast discussion Monday morning.

Storm chances and cooldown later this week in Reno-Tahoe

Dry conditions are expected to continue into early this week, though isolated thunderstorms could develop Tuesday afternoon in parts of western Nevada. Some storms could produce strong wind gusts exceeding 50 mph.

A cooldown is expected to begin by midweek as a weather system moves into the region. High temperatures in Reno are forecast to fall back into the 70s and lower 80s by Wednesday and Thursday, accompanied by breezy conditions and slight chances for showers.

Reno forecast, May 11-18

Monday, May 11: Mostly sunny with a high near 91 and a low around 55. Winds 10-15 mph in the afternoon.
Tuesday, May 12: Sunny with a high near 90 and a low around 57. Breezy with winds 20-25 mph and gusts up to 35 mph.
Wednesday, May 13: Mostly sunny with a high near 77 and a low around 46. Breezy with winds 20-25 mph and gusts up to 40 mph. Slight chance of showers late.
Thursday, May 14: Slight chance of showers early, then mostly sunny with a high near 77 and a low around 47.
Friday, May 15: Sunny with a high near 81 and a low around 47.
Saturday, May 16: Sunny with a high near 79 and a low around 46.
Sunday, May 17: Sunny with a high near 78.

Tahoe forecast, May 11-18

Monday, May 11: Sunny with highs around 84 at the lake to 74 at higher elevations and lows 41 to 51. Winds around 10 mph in the afternoon.
Tuesday, May 12: Sunny with highs around 82 at the lake to 72 at higher elevations and lows 40 to 50. Winds 10-15 mph with gusts up to 35 mph in the afternoon.
Wednesday, May 13: Sunny with highs around 71 at the lake to 61 at higher elevations and lows 31 to 41. Winds 10-20 mph with gusts up to 45 mph. Ridge gusts up to 65 mph in the afternoon. Chance of showers overnight.
Thursday, May 14: Partly cloudy with a slight chance of showers. Highs around 73 at the lake to 63 at higher elevations and lows 34 to 44.
Friday, May 15: Clear with highs around 75 at the lake to 65 at higher elevations and lows 34 to 44.
Saturday, May 16: Clear with highs around 75 at the lake to 65 at higher elevations and lows 34 to 44.
Sunday, May 17: Clear with highs around 75 at the lake to 65 at higher elevations.

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