Today | Weather | Tuesday, July 21, 2026

Active Weather Warnings

Flood Watch

Weather in Reno, Nevada

06:08 AM

Now

68° F

Feels Like 66°

Precipitation 34 %

Wind 5 mph

UV Index (0 - 11+) 0

Humidity 66 %

Today

Day 90°

Night 66°

Precipitation 55 %

Wind 8 mph

UV Index (0 - 11+) 8

Warning: High UV Index Today: 8

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.

Reno Weather Forecast Updated

14 minutes ago

Last updated on July 21, 2026 at 5:54 AM

Weather Forecast History

Last Year's Weather on This Day (July 21, 2025)

Day

84°

Night

59°

Wind

9 mph

Precipitation

55 %

Air Quality in Reno

NOW

24 AQI

Good air quality Dominant pollutant: PM_2.5

Pollutant Concentrations:

PM_2.5 5.84 µg/m³

PM₁₀ 7.22 µg/m³

O₃ 0.022 ppm

NO₂ 1.2 ppb

SO₂ 0.1 ppb

CO 0.09 ppm

NH₃ 1.26 µg/m³

NO 0 µg/m³

PM_2.5 – 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)

PM_2.5 – 5.84 µg/m³

PM₁₀ – 7.22 µg/m³

O₃ – 43.96 µg/m³

NO₂ – 2.28 µg/m³

SO₂ – 0.21 µg/m³

CO – 103.8 µg/m³

NH₃ – 1.26 µg/m³

NO – 0 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Reno

Severe Future Possible

Flood Watch

Flood Watch issued July 21 at 2:58AM PDT until July 21 at 11:00PM PDT by NWS Reno NV

Jul 21, 12:00 PM → Jul 21, 11:00 PM

WHAT: Flash flooding caused by excessive rainfall is possible due
to thunderstorms.

WHERE: Portions of east central California, including the
following areas, Greater Lake Tahoe Area and Mono County and
western Nevada, including the following areas, Greater Lake Tahoe
Area, Greater Reno-Carson City-Minden Area and Mineral and
Southern Lyon Counties.

WHEN: From noon PDT today through this evening.

IMPACTS: Excessive runoff may result in flooding of creeks,
streams, urban areas, burn scars, and areas near steep terrain.

ADDITIONAL DETAILS:
- Deeper monsoonal moisture combined with daytime heating will
produce scattered thunderstorms this afternoon and evening.
Slower moving storms could redevelop over similar areas,
increasing the risk for heavy rainfall capable of producing
flash flooding.
- http://www.weather.gov/safety/flood

+ Read More

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

Updated: Jul 21, 5:54 AM Source: NWS Alert