Weather Alerts For Arminto, WY

URGENT - FIRE WEATHER MESSAGE National Weather Service Riverton WY 200 AM MDT Thu Mar 19 2026 Natrona County/Casper BLM-Johnson County/Casper BLM- Granite/Green/Ferris/Rattlesnake Mountains- 200 AM MDT Thu Mar 19 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT SATURDAY... * IMPACTS: Low Humidities...Unseasonably Warm Temperatures...and Strong Gusty Winds could cause erratic fire behavior. * AFFECTED AREA: In Central WY Fire Zones...280...289. In North Central WY Fire Zone....281. * COUNTIES AFFECTED: In Central WY...Fremont...Natrona. In North Central WY...Johnson. In Southwest WY...Sweetwater. * WIND: West 15 to 25 mph with gusts up to 40 mph today, west 15 to 25 mph with gusts to 30 mph Friday and 20 to 30 mph with gusts to 45 mph Saturday. * HUMIDITY: 10 to 15 percent. * TEMPERATURES: Highs in the mid 70s to lower 80s. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. &&

Pollen Index: 8.4 Pollen Level: medium-high Predominant Pollen: Cedar/Juniper and Poplar/Cottonwood The pollen levels for Thursday will be higher than they were today in the high range. This rise is a result of rising temperatures, strong winds and lower relative humidity.