Washington County, ME

Alerts

County Line

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Briefings

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From the Forecaster

Frost Tonight in Northern Areas

Created by the NWS Caribou WFO

Good Afternoon! A frost advisory is currently in effect tonight for southern and northeastern Aroostook County as well as northern Penobscot County so make sure to bring in any tender plants! Looking ahead, mostly dry conditions are expected this week aside from a chance for showers overnight Thursday night. Some patchy coastal fog is also possible Tuesday-Thursday nights. For more information, please visit weather.gov/car

Image Description

Weather forecast for northern and eastern Maine, issued September 14, 2026, titled "Frost Tonight in Northern Areas" and "Dry conditions expected through Thursday." A Frost Advisory is in effect for parts of northern Maine as low temperatures are expected to reach the mid to upper 30s tonight. The week will be mostly dry with mild temperatures, highs ranging from mid-60s to low-70s, with a chance of showers Thursday night.

Caribou Area Forecast Discussion

Seven-day Weather Risk Overview

The graphic shows the daily risk summary for 7 days. Daily risk is based on highest risk factor for that day.

	Thu 9/10	Thu 9/10	Fri 9/11	Sat 9/12	Sun 9/13	Mon 9/14	Tue 9/15
risk level	out of 10

No risk

Low risk

High risk

See the detailed risk analysis

Radar

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dBz	Intensity
−35–0	Extremely light (drizzle/snow)
0–20	Very light precipitation or general clutter
20–40	Light precipitation
40–50	Moderate precipitation
50–65	Heavy precipitation or some hail
>65	Extremely heavy precipitation including water-coated hail