As of 00:41 EDT

Weather in Fort Lyon, ME

69°Current weather

Fort Lyon, Sunday, 9 August, 00:41

Partly cloudy. Feels like 70°. High 86°, low 69°.

Pressure29.85 inHg
Wind6.7 mph W
Humidity95%
Visibility6.2 mi
Dew point68°

Monthly outlook for Fort Lyon, ME: average high 75.6°, average low 61.4°. That is 0.7° above the climate normal for August. Precipitation is expected on 4 days (about 1.8 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 9 August (86.2°), the coolest 23 August (56.1°).

75.6°/61.4°
Average high / low
+0.7°
Above normal
4 / 5
Wet days / normal
1.8 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
9 August – 18 August76.2°75°+0.7°
19 August – 28 August74.7°73.4°+0.7°
29 August – 7 Septemberat normal71.6°

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 (4 mi).

Mon, 1080° / 67°0Light rain
80 °Light rain

Fort Lyon, Monday, 10 August

Light rain. High 80°, low 67°.

Pressure29.94 inHg
Wind9.9 mph S
Humidity48%
Visibility6.2 mi
Dew point57°
Tue, 1183° / 63°0.03Light rain
83 °Light rain

Fort Lyon, Tuesday, 11 August

Light rain. High 83°, low 63°.

Pressure29.71 inHg
Wind1 mph S
Humidity53%
Visibility6.2 mi
Dew point63°
Wed, 1270° / 62°0.27Rain
70 °Rain

Fort Lyon, Wednesday, 12 August

Rain. High 70°, low 62°.

Pressure29.77 inHg
Wind0.9 mph W
Humidity97%
Visibility6.2 mi
Dew point60°
Thu, 1374° / 60°0.14Light rain
74 °Light rain

Fort Lyon, Thursday, 13 August

Light rain. High 74°, low 60°.

Pressure29.65 inHg
Wind8.1 mph SW
Humidity68%
Visibility
Dew point61°
Fri, 1471° / 57°0Clear
71 °Clear

Fort Lyon, Friday, 14 August

Clear. High 71°, low 57°.

Pressure29.88 inHg
Wind12.4 mph W
Humidity45%
Visibility
Dew point46°
Sat, 1576° / 57°0Clear
76 °Clear

Fort Lyon, Saturday, 15 August

Clear. High 76°, low 57°.

Pressure29.94 inHg
Wind13.1 mph NW
Humidity49%
Visibility
Dew point49°
Sun, 1673° / 58°0Clear
73 °Clear

Fort Lyon, Sunday, 16 August

Clear. High 73°, low 58°.

Pressure30.12 inHg
Wind6.9 mph N
Humidity48%
Visibility
Dew point49°
Mon, 1775° / 60°0Partly cloudy
75 °Partly cloudy

Fort Lyon, Monday, 17 August

Partly cloudy. High 75°, low 60°.

Pressure30.15 inHg
Wind14.5 mph S
Humidity56%
Visibility
Dew point55°
Tue, 1874° / 64°0.02Light rain
74 °Light rain

Fort Lyon, Tuesday, 18 August

Light rain. High 74°, low 64°.

Pressure30.12 inHg
Wind13.6 mph S
Humidity73%
Visibility
Dew point59°
Wed, 1975° / 63°0Overcast
75 °Overcast

Fort Lyon, Wednesday, 19 August

Overcast. High 75°, low 63°.

Pressure29.97 inHg
Wind12.8 mph S
Humidity56%
Visibility
Dew point56°
Thu, 2069° / 64°1.05Rain
69 °Rain

Fort Lyon, Thursday, 20 August

Rain. High 69°, low 64°.

Pressure29.65 inHg
Wind14.1 mph S
Humidity97%
Visibility
Dew point66°
Fri, 2173° / 59°0Overcast
73 °Overcast

Fort Lyon, Friday, 21 August

Overcast. High 73°, low 59°.

Pressure29.56 inHg
Wind13.4 mph NW
Humidity58%
Visibility
Dew point56°
Sat, 2275° / 57°0Clear
75 °Clear

Fort Lyon, Saturday, 22 August

Clear. High 75°, low 57°.

Pressure29.91 inHg
Wind11.7 mph NW
Humidity44%
Visibility
Dew point44°
Sun, 2375° / 56°0.01Light rain
75 °Light rain

Fort Lyon, Sunday, 23 August

Light rain. High 75°, low 56°.

Pressure30.06 inHg
Wind13.2 mph S
Humidity39%
Visibility
Dew point43°
Mon, 2481° / 65°0.23Light rain
81 °Light rain

Fort Lyon, Monday, 24 August

Light rain. High 81°, low 65°.

Pressure29.74 inHg
Wind13.2 mph W
Humidity61%
Visibility
Dew point62°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2573° / 62°0.11Climate normal
73 °Climate normal

Fort Lyon, 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

Fort Lyon, 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

Fort Lyon, 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

Fort Lyon, 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

Fort Lyon, 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

Fort Lyon, 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

Fort Lyon, 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

Fort Lyon, 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

Fort Lyon, 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

Fort Lyon, 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

Fort Lyon, 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

Fort Lyon, 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

Fort Lyon, 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)
Mon, 0771° / 59°0.17Climate normal
71 °Climate normal

Fort Lyon, Monday, 7 September

Climate normal for this date — 60-year average.

Average high71°
Average low59°
Average precipitation0.17 in
Chance of precipitation28%
Record high86° (2023)
Record low52° (1988)

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 Fort Lyon, 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 Fort Lyon, 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.