Weather Alerts For Mills, WY

URGENT - FIRE WEATHER MESSAGE National Weather Service Riverton WY 1255 PM MDT Thu Mar 19 2026 Natrona County/Casper BLM-Johnson County/Casper BLM- Granite/Green/Ferris/Rattlesnake Mountains- 1255 PM 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 20 to 30 mph with gusts up to 45 mph, especially on Saturday. * HUMIDITY: As low as 8 percent. * TEMPERATURES: Highs in the upper 70s. Lows in the mid 40s. * ADDITIONAL DETAILS: Conditions are expected to improve during the overnight hours. 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.