Weather Alerts For Frederick, CO

URGENT - FIRE WEATHER MESSAGE National Weather Service Denver/Boulder CO 744 PM MDT Thu Apr 2 2026 Larimer County Below 6000 Feet/Northwest Weld County- Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County- North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County- Elbert/Central and East Douglas Counties Above 6000 Feet- Northeast Weld County-Central and South Weld County-Morgan County- Central and East Adams and Arapahoe Counties-Logan County- Washington County-Sedgwick County-Phillips County- 744 PM MDT Thu Apr 2 2026 ...RED FLAG WARNING IN EFFECT FROM 8 AM TO 7 PM MDT FRIDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR THE I-25 CORRIDOR AND ALL OF NORTHEAST AND EAST CENTRAL COLORADO... The National Weather Service in Denver has issued a Red Flag Warning for wind and low relative humidity, which is in effect from 8 AM to 7 PM MDT Friday. * AFFECTED AREA...Fire Weather Zones 238, 239, 240, 241, 242, 243, 244, 245, 248, 249, 250 and 251. * TIMING...From 8 AM to 7 PM MDT Friday. * WINDS...Northwest 20 to 35 mph, with gusts around 45 mph. Gusts as high as 60 mph near the foothills of Boulder and Larimer Counties. * RELATIVE HUMIDITY...As low as 16 percent. * IMPACTS...Conditions will be favorable for rapid fire spread. Avoid outdoor burning and any activity that may produce a spark and start a wildfire. 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: 10.6 Pollen Level: high Predominant Pollen: Maple, Cedar/Juniper and Elm. Pollen concentrations for Saturday will be falling but will remain in the very high range. This lowering of pollen concentrations is a result of rising relative humidity and relatively weaker winds.