Weather in Lancaster

The combination of drying fine fuels and leaf litter, low relative humidity of 25 to 35 percent and a moderately gusty northwest wind of 15 to 20 mph, will create an elevated risk of wildfire spread across the southern half of Pennsylvania today. Residents are urged to exercise caution if handling any potential ignition sources, such as machinery, cigarettes, or matches. If dry grasses and tree l...

* WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...Dauphin, Juniata, Lancaster, Lebanon, Mifflin, Montour, Northumberland, Perry, Snyder, and Union Counties. * WHEN...From 2 AM to 8 AM EDT Sunday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Near-ground freezing temperatures could kill uncovered sensitive outdoor vegetation. Valley locations and sheltered areas will experience the coldest temperatures. Take steps now to protect tender plants and vegetation from the cold.

There is an elevated risk for fire spread today across southeastern Pennsylvania. Minimum relative humidity values will drop to around 25 to 35 percent this afternoon. This will be accompanied by northwesterly winds with gusts up to 20-25 MPH. These conditions, along with the continued drying of fine fuels, could support the rapid spread of any fires that ignite, which could quickly become difficu...

* WHAT...Temperatures as low as 36 will result in frost formation. * WHERE...Berks, Western Chester, and Western Montgomery Counties. * WHEN...From 2 AM to 8 AM EDT Sunday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Take steps now to protect tender plants from the cold.