As of 14:47 EDT

Weather in Riverton, ME

78°Current weather

Riverton, Saturday, 8 August, 14:47

Overcast. Feels like 79°. High 81°, low 70°.

Pressure29.91 inHg
Wind2 mph E
Humidity82%
Visibility6.2 mi
Dew point72°

Monthly outlook for Riverton, ME: average high 78.6°, average low 61°. That is 2.3° above the climate normal for August. Precipitation is expected on 10 days (about 1.7 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 9 August (91.2°), the coolest 16 August (53.3°).

78.6°/61°
Average high / low
+2.3°
Above normal
10 / 5
Wet days / normal
1.7 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 August – 17 August80.8°75.1°+3.2°
18 August – 27 August74.8°73.5°+0.7°
28 August – 6 Septemberat normal71.8°

August records over 66 years

93.6°12 August 2025All-time high
48°30 August 1965All-time low

Climate normals and records are computed from the nearest reference point — Portland (3 mi).

Sun, 0991° / 69°0Clear
91 °Clear

Riverton, Sunday, 9 August

Clear. High 91°, low 69°.

Pressure29.83 inHg
Wind2.1 mph SW
Humidity44%
Visibility6.2 mi
Dew point65°
Mon, 1087° / 67°0.08Rain
87 °Rain

Riverton, Monday, 10 August

Rain. High 87°, low 67°.

Pressure29.94 inHg
Wind8.4 mph S
Humidity36%
Visibility6.2 mi
Dew point56°
Tue, 1186° / 64°0.07Rain
86 °Rain

Riverton, Tuesday, 11 August

Rain. High 86°, low 64°.

Pressure29.71 inHg
Wind10.9 mph NW
Humidity42%
Visibility6.2 mi
Dew point59°
Wed, 1273° / 61°0.06Light rain
73 °Light rain

Riverton, Wednesday, 12 August

Light rain. High 73°, low 61°.

Pressure29.80 inHg
Wind3 mph S
Humidity91%
Visibility6.2 mi
Dew point62°
Thu, 1378° / 58°0.28Rain
78 °Rain

Riverton, Thursday, 13 August

Rain. High 78°, low 58°.

Pressure29.68 inHg
Wind10.1 mph W
Humidity59%
Visibility
Dew point60°
Fri, 1475° / 55°0Clear
75 °Clear

Riverton, Friday, 14 August

Clear. High 75°, low 55°.

Pressure29.83 inHg
Wind8.1 mph NW
Humidity45%
Visibility
Dew point45°
Sat, 1576° / 58°0Mostly clear
76 °Mostly clear

Riverton, Saturday, 15 August

Mostly clear. High 76°, low 58°.

Pressure30.06 inHg
Wind10 mph NW
Humidity36%
Visibility
Dew point42°
Sun, 1679° / 53°0Clear
79 °Clear

Riverton, Sunday, 16 August

Clear. High 79°, low 53°.

Pressure30.24 inHg
Wind7.8 mph S
Humidity31%
Visibility
Dew point40°
Mon, 1782° / 57°0Overcast
82 °Overcast

Riverton, Monday, 17 August

Overcast. High 82°, low 57°.

Pressure30.15 inHg
Wind9 mph SW
Humidity39%
Visibility
Dew point47°
Tue, 1874° / 62°0.32Rain
74 °Rain

Riverton, Tuesday, 18 August

Rain. High 74°, low 62°.

Pressure30.00 inHg
Wind8.3 mph S
Humidity99%
Visibility
Dew point63°
Wed, 1976° / 62°0.04Light rain
76 °Light rain

Riverton, Wednesday, 19 August

Light rain. High 76°, low 62°.

Pressure29.85 inHg
Wind5.8 mph N
Humidity55%
Visibility
Dew point57°
Thu, 2078° / 58°0Clear
78 °Clear

Riverton, Thursday, 20 August

Clear. High 78°, low 58°.

Pressure30.00 inHg
Wind7.6 mph S
Humidity36%
Visibility
Dew point44°
Fri, 2176° / 62°0.08Light rain
76 °Light rain

Riverton, Friday, 21 August

Light rain. High 76°, low 62°.

Pressure30.00 inHg
Wind11 mph S
Humidity55%
Visibility
Dew point57°
Sat, 2276° / 63°0.57Rain
76 °Rain

Riverton, Saturday, 22 August

Rain. High 76°, low 63°.

Pressure29.77 inHg
Wind10.7 mph S
Humidity99%
Visibility
Dew point66°
Sun, 2368° / 55°0.04Light rain
68 °Light rain

Riverton, Sunday, 23 August

Light rain. High 68°, low 55°.

Pressure29.68 inHg
Wind12.7 mph NW
Humidity55%
Visibility
Dew point48°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2473° / 62°0.07Climate normal
73 °Climate normal

Riverton, Monday, 24 August

Climate normal for this date — 60-year average.

Average high73°
Average low62°
Average precipitation0.07 in
Chance of precipitation27%
Record high82° (1980)
Record low53° (1971)
Tue, 2573° / 62°0.11Climate normal
73 °Climate normal

Riverton, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high73°
Average low62°
Average precipitation0.11 in
Chance of precipitation32%
Record high86° (2020)
Record low53° (1989)
Wed, 2674° / 62°0.04Climate normal
74 °Climate normal

Riverton, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high74°
Average low62°
Average precipitation0.04 in
Chance of precipitation17%
Record high86° (2021)
Record low54° (2019)
Thu, 2774° / 62°0.05Climate normal
74 °Climate normal

Riverton, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high74°
Average low62°
Average precipitation0.05 in
Chance of precipitation27%
Record high84° (1983)
Record low52° (2019)
Fri, 2873° / 62°0.14Climate normal
73 °Climate normal

Riverton, Friday, 28 August

Climate normal for this date — 60-year average.

Average high73°
Average low62°
Average precipitation0.14 in
Chance of precipitation28%
Record high90° (2018)
Record low54° (2025)
Sat, 2972° / 62°0.15Climate normal
72 °Climate normal

Riverton, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high72°
Average low62°
Average precipitation0.15 in
Chance of precipitation28%
Record high86° (2010)
Record low49° (1982)
Sun, 3073° / 61°0.14Climate normal
73 °Climate normal

Riverton, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high73°
Average low61°
Average precipitation0.14 in
Chance of precipitation27%
Record high86° (2010)
Record low48° (1965)
Mon, 3173° / 61°0.09Climate normal
73 °Climate normal

Riverton, Monday, 31 August

Climate normal for this date — 60-year average.

Average high73°
Average low61°
Average precipitation0.09 in
Chance of precipitation22%
Record high89° (2010)
Record low48° (1965)
Tue, 0172° / 60°0.03Climate normal
72 °Climate normal

Riverton, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high72°
Average low60°
Average precipitation0.03 in
Chance of precipitation18%
Record high85° (2010)
Record low50° (2017)
Wed, 0271° / 60°0.11Climate normal
71 °Climate normal

Riverton, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high71°
Average low60°
Average precipitation0.11 in
Chance of precipitation28%
Record high87° (2010)
Record low49° (2017)
Thu, 0371° / 60°0.11Climate normal
71 °Climate normal

Riverton, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high71°
Average low60°
Average precipitation0.11 in
Chance of precipitation30%
Record high87° (2018)
Record low52° (2024)
Fri, 0471° / 60°0.14Climate normal
71 °Climate normal

Riverton, Friday, 4 September

Climate normal for this date — 60-year average.

Average high71°
Average low60°
Average precipitation0.14 in
Chance of precipitation33%
Record high83° (2023)
Record low53° (1965)
Sat, 0571° / 60°0.08Climate normal
71 °Climate normal

Riverton, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high71°
Average low60°
Average precipitation0.08 in
Chance of precipitation22%
Record high89° (2023)
Record low50° (1963)
Sun, 0670° / 60°0.12Climate normal
70 °Climate normal

Riverton, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high70°
Average low60°
Average precipitation0.12 in
Chance of precipitation32%
Record high89° (2018)
Record low50° (2000)

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 Riverton, 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 Riverton, 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.