United States, North America
Grand Teton is located in the United States with varying weather patterns throughout the year. Plan your visit to Grand Tetonwith our accurate weather forecasts, including hourly updates, 7-day predictions, and real-time conditions. Whether you're a local or visitor, stay prepared for whatever weather the United States brings.
United States, United States of America
Friday, 28 August 2026 at 23:13
Overcast
Feels like 13°C
Humidity
81%
Wind
8.6 km/h ENE
Visibility
10 km
Pressure
1015 mb
* WHAT...Flooding caused by excessive rainfall is possible. * WHERE...Portions of central, northwest, and west central Wyoming, including the following areas, in central Wyoming, Wind River Mountains West. In northwest Wyoming, Absaroka Mountains, Jackson Hole, Teton and Gros Ventre Mountains and Yellowstone National Park. In west central Wyoming, Salt River and Wyoming Ranges and Star Valley. * WHEN...From 6 PM MDT this evening through Sunday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Increased moisture from the Pacific will move across northwest Wyoming through the weekend, bringing an extended chance for showers and thunderstorms. The increased moisture will have the potential to produce locally heavy rainfall, providing excessive runoff in flood-prone and low-lying areas. - http://www.weather.gov/safety/flood
22°/ 14°
Overcast
Updated nowRain Chance
79%
Humidity
69%
Max Wind
18 km/h
Avg Temp
18°C
Sunrise
06:45 AM
Sunset
08:10 PM
06:00 am
16°
07:00 am
16°
08:00 am
17°
09:00 am
20°
10:00 am
20°
11:00 am
18°
12:00 pm
19°
01:00 pm
20°
02:00 pm
21°
03:00 pm
20°
04:00 pm
22°
05:00 pm
20°
06:00 pm
16°
07:00 pm
16°
08:00 pm
15°
09:00 pm
14°
10:00 pm
14°
11:00 pm
14°
12:00 am
16°
01:00 am
16°
02:00 am
15°
03:00 am
18°
04:00 am
18°
05:00 am
17°
Today
Sat, 29 Aug
UV Index
0 Low
Precipitation
0 mm
You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.
Sun, 30 Aug
Mon, 31 Aug
Tue, 01 Sept
Wed, 02 Sept
Thu, 03 Sept
Fri, 04 Sept
Sat, 05 Sept
Sun, 06 Sept
Mon, 07 Sept
Tue, 08 Sept
Wed, 09 Sept
Thu, 10 Sept
Sun
Sunrise
06:45 AM
Sunset
08:10 PM
Moon
Moonrise
08:24 PM
Moonset
07:25 AM
Moon Phase
Full Moon
Illumination
98%
Good
Air quality is satisfactory
PM2.5
14.8 μg/m³
PM10
22.7 μg/m³
Ozone (O₃)
78.0 μg/m³
NO₂
8.5 μg/m³
SO₂
0.4 μg/m³
CO
134.0 μg/m³
