Live Weather & Forecast

Weather in Greybull

Wyoming, United States · Real-time conditions & 3-day outlook

Flag of United States
Clear
8°C
Feels like 5°C
47°F / Feels 42°F
Clear
Greybull, Wyoming
🌙 Nighttime
Updated: 2026-04-16 03:15
💧
Humidity
48%
💨
Wind
19.4 km/h SSE
🌬️
Wind Gust
36.4 km/h
🌡️
Pressure
1001 mb
👁️
Visibility
16 km
☀️
UV Index
0 (Low)
🌧️
Precipitation
0 mm
☁️
Cloud Cover
0%
💦
Dew Point
-3.3°C
🌐
Wind Degree
154°

Air Quality Index

US EPA: Good UK DEFRA: Low (1)
CO
139.8 μg/m³
NO₂
2.6 μg/m³
O₃
91 μg/m³
SO₂
1 μg/m³
PM 2.5
8.6 μg/m³
PM 10
21.5 μg/m³

Weather Alerts 1

Met · Moderate · Expected
Winter Weather Advisory issued April 15 at 11:56AM MDT until April 17 at 6:00AM MDT by NWS Riverton WY

* WHAT...Snow and wind expected. Total snow accumulations between 6 and 13 inches for elevations above 7,000 feet. Total snow accumulations of 9 to 12 inches across Powder River Pass. Winds gusting between 35 and 55 mph. * WHERE...Bighorn Mountains Southeast and Bighorn Mountains West. * WHEN...From 9 AM Thursday to 6 AM MDT Friday. * IMPACTS...Travel could be difficult, especially over Powder...

Slow down and use caution while traveling. For graphical depictions of the snowfall forecast, including the official NWS forecast, high end amounts, and low end amounts, visit https://weather.gov/riw/winter . For winter road conditions from the Wyoming Department of Transportation, visit https://w...

Effective: 2026-04-15T11:56:00-06:00  ·  Expires: 2026-04-16T07:00:00-06:00

Today's Hourly Forecast

24-hour breakdown for Greybull, Wyoming

12 AM
Clear
11°
Clear
💧 40% 💨 18.4 km/h
1 AM
Clear
10°
Clear
💧 44% 💨 18.4 km/h
2 AM
Clear
10°
Clear
💧 45% 💨 16.2 km/h
3 AM
Clear
8°
Clear
💧 48% 💨 19.4 km/h
4 AM
Clear
9°
Clear
💧 45% 💨 16.9 km/h
5 AM
Clear
8°
Clear
💧 44% 💨 9 km/h
6 AM
Clear
8°
Clear
💧 52% 💨 11.2 km/h
7 AM
Sunny
8°
Sunny
💧 58% 💨 9.4 km/h
8 AM
Sunny
8°
Sunny
💧 74% 💨 12.2 km/h
9 AM
Sunny
9°
Sunny
💧 68% 💨 21.2 km/h
10 AM
Sunny
10°
Sunny
💧 59% 💨 15.5 km/h
11 AM
Sunny
11°
Sunny
💧 52% 💨 7.6 km/h
12 PM
Sunny
12°
Sunny
💧 45% 💨 13.7 km/h
1 PM
Sunny
13°
Sunny
💧 38% 💨 49.3 km/h
2 PM
Sunny
13°
Sunny
💧 31% 💨 32.4 km/h
3 PM
Sunny
12°
Sunny
💧 40% 💨 28.1 km/h
4 PM
Sunny
10°
Sunny
💧 36% 💨 31 km/h
5 PM
Cloudy
5°
Cloudy
💧 47% 💨 33.5 km/h
6 PM
Heavy snow
5°
Heavy snow
💧 90% 💨 28.4 km/h 🌧️ 100% ❄️ 100%
7 PM
Partly Cloudy
5°
Partly Cloudy
💧 49% 💨 30.6 km/h
8 PM
Overcast
3°
Overcast
💧 58% 💨 35.3 km/h
9 PM
Overcast
2°
Overcast
💧 72% 💨 32.4 km/h
10 PM
Overcast
2°
Overcast
💧 59% 💨 31 km/h
11 PM
Cloudy
0°
Cloudy
💧 56% 💨 29.2 km/h

3-Day Forecast

Daily overview for Greybull, Wyoming

Today
Patchy rain nearby
Patchy rain nearby
14° / 1°
🌧️ 84% chance of rain
❄️ 3% chance of snow
💧 Avg. humidity: 52%
💨 Max wind: 49.3 km/h
🌧️ Total precip: 4.45 mm
☀️ UV Index: 1.1
🌅 Sunrise: 06:26 AM
🌇 Sunset: 07:59 PM
🌙 Waning Crescent
🌑 Moon: 3% lit
Fri, Apr 17
Partly Cloudy
Partly Cloudy
7° / -6°
🌧️ 0% chance of rain
💧 Avg. humidity: 61%
💨 Max wind: 40.3 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.3
🌅 Sunrise: 06:24 AM
🌇 Sunset: 08:00 PM
🌙 New Moon
🌑 Moon: 0% lit
Sat, Apr 18
Sunny
Sunny
11° / -7°
🌧️ 0% chance of rain
💧 Avg. humidity: 53%
💨 Max wind: 13.3 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.6
🌅 Sunrise: 06:23 AM
🌇 Sunset: 08:01 PM
🌙 Waxing Crescent
🌑 Moon: 1% lit

Best Time to Visit Greybull

Plan your trip to Greybull, United States around the most favorable weather conditions.

Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
← Back to Greybull 🗓 View Holidays 2026

Frequently Asked Questions

What is the current weather in Greybull?
Current conditions in Greybull: Clear, temperature 8°C, humidity 48%.
What is the best time to visit Greybull?
The best time to visit Greybull is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Greybull?
Greybull is located at approximately 44.5° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Greybull?
The wettest period in Greybull is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Greybull?
For visits to Greybull during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Greybull in?
Greybull is located in United States, in the state of Wyoming.
What are the public holidays in Greybull in 2026?
View the 2026 public holidays for Greybull on our Holidays page.
What are the GPS coordinates used for the weather forecast in Greybull?
The weather forecast for Greybull uses coordinates 44.4889, -108.0554.