Penobscot County, ME Weather Forecast
County weather hub
Mostly Sunny
Compare major city weather across Penobscot County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Mostly sunny, with a high near 78.
County Weather Overview
This county weather page brings together forecast coverage for Penobscot County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 17 of 17 mapped cities in Penobscot County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Aug 29 to Sep 1, 2026
- Latest sync
- Aug 25, 2026 8:18 PM EDT
- Forecast office
- CAR
- Source
- NOAA / NWS
Daily Outlook
This Week in Penobscot County
Sunday looks like the warmest upcoming period in Penobscot County at 79 degrees F.
Saturday Night is the coolest period ahead with temperatures near 52 degrees F.
The strongest winds are forecast for Sunday at about 1 to 8 mph SW.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 25, 2026 8:18 PM EDT
- Coverage
- 4 days
- Time zone
- America/New_York
- Forecast office
- CAR
- Radar station
- KCBW
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 52.
Sunny, with a high near 79.
A slight chance of rain showers after 4am. Partly cloudy, with a low around 56. Chance of precipitation is 20%.
A slight chance of rain showers before 8am, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 77. Chance of precipitation is 20%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 56. Chance of precipitation is 40%.
A chance of rain showers. Partly sunny, with a high near 74.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Aug 29
|
Mostly Sunny
|
78°F |
3 to 7 mph
NW
|
|
Saturday Night
Aug 29
|
Mostly Clear
|
52°F |
1 to 6 mph
W
|
|
Sunday
Aug 30
|
Sunny
|
79°F |
1 to 8 mph
SW
|
|
Sunday Night
Aug 30
|
Partly Cloudy then Slight Chance Rain Showers
|
56°F |
3 to 8 mph
SW
|
|
Monday
Aug 31
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
77°F |
3 to 8 mph
W
|
|
Monday Night
Aug 31
|
Chance Showers And Thunderstorms
|
56°F |
2 to 7 mph
E
|
|
Tuesday
Sep 1
|
Chance Rain Showers
|
74°F |
2 to 8 mph
SE
|
Major City Forecasts
Live forecast snapshots for major cities across Penobscot County.
Coverage
Forecast coverage currently spans 17 of 17 mapped cities in Penobscot County.
Largest mapped city population in this region: 31,998.
