As of 01:20 EDT

Weather in Jefferson, ME

66°Current weather

Jefferson, Sunday, 9 August, 01:20

Overcast. Feels like 67°. High 88°, low 66°.

Pressure29.85 inHg
Wind3.8 mph SW
Humidity97%
Visibility6.2 mi
Dew point66°

Monthly outlook for Jefferson, ME: average high 76.3°, average low 58.6°. That is 0.6° below the climate normal for August. Precipitation is expected on 6 days (about 1.4 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 9 August (87.8°), the coolest 23 August (50°).

76.3°/58.6°
Average high / low
−0.6°
Below normal
6 / 5
Wet days / normal
1.4 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
9 August – 18 August76.9°78.1°-0.7°
19 August – 28 August75.2°76.1°-0.5°
29 August – 7 Septemberat normal73.7°

August records over 66 years

100.4°2 August 1975All-time high
45°31 August 1965All-time low

Climate normals and records are computed from the nearest reference point — Augusta (15 mi).

Mon, 1084° / 63°0.11Rain
84 °Rain

Jefferson, Monday, 10 August

Rain. High 84°, low 63°.

Pressure29.94 inHg
Wind5.7 mph S
Humidity37%
Visibility6.2 mi
Dew point56°
Tue, 1182° / 61°0.11Rain
82 °Rain

Jefferson, Tuesday, 11 August

Rain. High 82°, low 61°.

Pressure29.71 inHg
Wind9.3 mph NW
Humidity55%
Visibility6.2 mi
Dew point63°
Wed, 1276° / 57°0.02Light rain
76 °Light rain

Jefferson, Wednesday, 12 August

Light rain. High 76°, low 57°.

Pressure29.77 inHg
Wind7.9 mph SW
Humidity59%
Visibility6.2 mi
Dew point57°
Thu, 1375° / 58°0.19Light rain
75 °Light rain

Jefferson, Thursday, 13 August

Light rain. High 75°, low 58°.

Pressure29.65 inHg
Wind6.7 mph W
Humidity83%
Visibility
Dew point63°
Fri, 1469° / 57°0Clear
69 °Clear

Jefferson, Friday, 14 August

Clear. High 69°, low 57°.

Pressure29.85 inHg
Wind11.1 mph NW
Humidity42%
Visibility
Dew point43°
Sat, 1572° / 57°0Overcast
72 °Overcast

Jefferson, Saturday, 15 August

Overcast. High 72°, low 57°.

Pressure29.91 inHg
Wind12.4 mph NW
Humidity52%
Visibility
Dew point49°
Sun, 1673° / 52°0Clear
73 °Clear

Jefferson, Sunday, 16 August

Clear. High 73°, low 52°.

Pressure30.12 inHg
Wind8.6 mph N
Humidity47%
Visibility
Dew point48°
Mon, 1777° / 56°0Mostly clear
77 °Mostly clear

Jefferson, Monday, 17 August

Mostly clear. High 77°, low 56°.

Pressure30.15 inHg
Wind10 mph S
Humidity48%
Visibility
Dew point52°
Tue, 1875° / 62°0.01Light rain
75 °Light rain

Jefferson, Tuesday, 18 August

Light rain. High 75°, low 62°.

Pressure30.09 inHg
Wind13.3 mph SW
Humidity62%
Visibility
Dew point59°
Wed, 1978° / 61°0Overcast
78 °Overcast

Jefferson, Wednesday, 19 August

Overcast. High 78°, low 61°.

Pressure30.00 inHg
Wind11.7 mph S
Humidity51%
Visibility
Dew point55°
Thu, 2066° / 64°0.72Rain
66 °Rain

Jefferson, Thursday, 20 August

Rain. High 66°, low 64°.

Pressure29.68 inHg
Wind12.7 mph SE
Humidity99%
Visibility
Dew point65°
Fri, 2174° / 59°0.02Light rain
74 °Light rain

Jefferson, Friday, 21 August

Light rain. High 74°, low 59°.

Pressure29.53 inHg
Wind13.6 mph NW
Humidity56%
Visibility
Dew point55°
Sat, 2274° / 52°0Clear
74 °Clear

Jefferson, Saturday, 22 August

Clear. High 74°, low 52°.

Pressure29.91 inHg
Wind13.6 mph NW
Humidity36%
Visibility
Dew point38°
Sun, 2379° / 50°0Light rain
79 °Light rain

Jefferson, Sunday, 23 August

Light rain. High 79°, low 50°.

Pressure30.06 inHg
Wind8.1 mph SW
Humidity34%
Visibility
Dew point39°
Mon, 2481° / 64°0.18Light rain
81 °Light rain

Jefferson, Monday, 24 August

Light rain. High 81°, low 64°.

Pressure29.74 inHg
Wind10.7 mph S
Humidity69%
Visibility
Dew point65°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2576° / 60°0.09Climate normal
76 °Climate normal

Jefferson, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high76°
Average low60°
Average precipitation0.09 in
Chance of precipitation35%
Record high88° (1969)
Record low50° (1989)
Wed, 2677° / 60°0.04Climate normal
77 °Climate normal

Jefferson, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high77°
Average low60°
Average precipitation0.04 in
Chance of precipitation17%
Record high93° (1993)
Record low51° (1963)
Thu, 2777° / 61°0.04Climate normal
77 °Climate normal

Jefferson, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high77°
Average low61°
Average precipitation0.04 in
Chance of precipitation20%
Record high92° (1993)
Record low51° (1989)
Fri, 2876° / 60°0.1Climate normal
76 °Climate normal

Jefferson, Friday, 28 August

Climate normal for this date — 60-year average.

Average high76°
Average low60°
Average precipitation0.1 in
Chance of precipitation28%
Record high92° (2018)
Record low51° (1963)
Sat, 2974° / 60°0.14Climate normal
74 °Climate normal

Jefferson, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high74°
Average low60°
Average precipitation0.14 in
Chance of precipitation32%
Record high92° (1977)
Record low46° (1986)
Sun, 3076° / 59°0.12Climate normal
76 °Climate normal

Jefferson, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high76°
Average low59°
Average precipitation0.12 in
Chance of precipitation30%
Record high87° (1991)
Record low46° (1965)
Mon, 3175° / 59°0.11Climate normal
75 °Climate normal

Jefferson, Monday, 31 August

Climate normal for this date — 60-year average.

Average high75°
Average low59°
Average precipitation0.11 in
Chance of precipitation28%
Record high91° (2010)
Record low45° (1965)
Tue, 0174° / 59°0.04Climate normal
74 °Climate normal

Jefferson, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high74°
Average low59°
Average precipitation0.04 in
Chance of precipitation18%
Record high92° (2000)
Record low49° (2002)
Wed, 0273° / 58°0.13Climate normal
73 °Climate normal

Jefferson, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high73°
Average low58°
Average precipitation0.13 in
Chance of precipitation25%
Record high91° (1999)
Record low48° (1967)
Thu, 0373° / 58°0.09Climate normal
73 °Climate normal

Jefferson, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high73°
Average low58°
Average precipitation0.09 in
Chance of precipitation33%
Record high95° (1999)
Record low49° (1967)
Fri, 0473° / 58°0.16Climate normal
73 °Climate normal

Jefferson, Friday, 4 September

Climate normal for this date — 60-year average.

Average high73°
Average low58°
Average precipitation0.16 in
Chance of precipitation38%
Record high87° (1999)
Record low48° (1987)
Sat, 0573° / 58°0.08Climate normal
73 °Climate normal

Jefferson, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high73°
Average low58°
Average precipitation0.08 in
Chance of precipitation23%
Record high87° (1983)
Record low46° (1963)
Sun, 0672° / 57°0.1Climate normal
72 °Climate normal

Jefferson, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high72°
Average low57°
Average precipitation0.1 in
Chance of precipitation30%
Record high88° (1983)
Record low47° (2000)
Mon, 0773° / 57°0.16Climate normal
73 °Climate normal

Jefferson, Monday, 7 September

Climate normal for this date — 60-year average.

Average high73°
Average low57°
Average precipitation0.16 in
Chance of precipitation27%
Record high90° (2015)
Record low48° (1984)

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Jefferson, ME are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Jefferson, ME since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.