As of 21:59 EDT

Weather in Alton, NY

73°Current weather

Alton, Saturday, 8 August, 21:59

Partly cloudy. Feels like 74°. High 84°, low 69°.

Pressure29.88 inHg
Wind4 mph SW
Humidity91%
Visibility6.2 mi
Dew point70°

Monthly outlook for Alton, NY: average high 76.3°, average low 62.3°. That is 0.4° below the climate normal for August. Precipitation is expected on 8 days (about 2.3 inches), against a normal of 6 days and 1.9 inches. The warmest day looks like 9 August (85.4°), the coolest 16 August (56.1°).

76.3°/62.3°
Average high / low
−0.4°
Below normal
8 / 6
Wet days / normal
2.3 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 August – 17 August77.1°77.7°-0.4°
18 August – 27 August75.1°75.9°-0.5°
28 August – 6 Septemberat normal74.9°

August records over 66 years

93.9°14 August 2002All-time high
46.9°30 August 1965All-time low

Climate normals and records are computed from the nearest reference point — Sodus (4 mi).

Sun, 0985° / 68°0Clear
85 °Clear

Alton, Sunday, 9 August

Clear. High 85°, low 68°.

Pressure30.03 inHg
Wind11.1 mph NW
Humidity54%
Visibility6.2 mi
Dew point57°
Mon, 1084° / 67°0.09Light rain
84 °Light rain

Alton, Monday, 10 August

Light rain. High 84°, low 67°.

Pressure29.91 inHg
Wind9.7 mph SW
Humidity64%
Visibility6.2 mi
Dew point66°
Tue, 1177° / 64°0.1Rain
77 °Rain

Alton, Tuesday, 11 August

Rain. High 77°, low 64°.

Pressure29.88 inHg
Wind9.8 mph NW
Humidity60%
Visibility6.2 mi
Dew point61°
Wed, 1277° / 65°0.42Rain
77 °Rain

Alton, Wednesday, 12 August

Rain. High 77°, low 65°.

Pressure29.74 inHg
Wind2.1 mph NE
Humidity65%
Visibility6.2 mi
Dew point64°
Thu, 1369° / 63°0.03Light rain
69 °Light rain

Alton, Thursday, 13 August

Light rain. High 69°, low 63°.

Pressure29.85 inHg
Wind17.6 mph W
Humidity54%
Visibility
Dew point51°
Fri, 1471° / 56°0.06Light rain
71 °Light rain

Alton, Friday, 14 August

Light rain. High 71°, low 56°.

Pressure30.03 inHg
Wind14.7 mph NW
Humidity52%
Visibility
Dew point50°
Sat, 1572° / 63°0Clear
72 °Clear

Alton, Saturday, 15 August

Clear. High 72°, low 63°.

Pressure30.21 inHg
Wind13.9 mph W
Humidity50%
Visibility
Dew point50°
Sun, 1674° / 56°0Overcast
74 °Overcast

Alton, Sunday, 16 August

Overcast. High 74°, low 56°.

Pressure30.18 inHg
Wind7 mph SE
Humidity52%
Visibility
Dew point52°
Mon, 1779° / 59°0.01Light rain
79 °Light rain

Alton, Monday, 17 August

Light rain. High 79°, low 59°.

Pressure30.03 inHg
Wind8.8 mph S
Humidity53%
Visibility
Dew point58°
Tue, 1881° / 62°0Overcast
81 °Overcast

Alton, Tuesday, 18 August

Overcast. High 81°, low 62°.

Pressure30.00 inHg
Wind12.4 mph S
Humidity51%
Visibility
Dew point58°
Wed, 1983° / 64°1.17Heavy rain
83 °Heavy rain

Alton, Wednesday, 19 August

Heavy rain. High 83°, low 64°.

Pressure29.74 inHg
Wind12.6 mph S
Humidity56%
Visibility
Dew point63°
Thu, 2067° / 61°0.15Light rain
67 °Light rain

Alton, Thursday, 20 August

Light rain. High 67°, low 61°.

Pressure29.62 inHg
Wind22.7 mph NW
Humidity83%
Visibility
Dew point61°
Fri, 2170° / 62°0Clear
70 °Clear

Alton, Friday, 21 August

Clear. High 70°, low 62°.

Pressure29.94 inHg
Wind19.9 mph NW
Humidity50%
Visibility
Dew point48°
Sat, 2268° / 58°0Mostly clear
68 °Mostly clear

Alton, Saturday, 22 August

Mostly clear. High 68°, low 58°.

Pressure30.09 inHg
Wind9 mph SE
Humidity46%
Visibility
Dew point45°
Sun, 2381° / 58°0.11Light rain
81 °Light rain

Alton, Sunday, 23 August

Light rain. High 81°, low 58°.

Pressure29.83 inHg
Wind11.9 mph S
Humidity57%
Visibility
Dew point62°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2475° / 62°0.11Climate normal
75 °Climate normal

Alton, Monday, 24 August

Climate normal for this date — 60-year average.

Average high75°
Average low62°
Average precipitation0.11 in
Chance of precipitation38%
Record high89° (2020)
Record low49° (1971)
Tue, 2576° / 62°0.12Climate normal
76 °Climate normal

Alton, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high76°
Average low62°
Average precipitation0.12 in
Chance of precipitation32%
Record high90° (2021)
Record low52° (1971)
Wed, 2677° / 63°0.07Climate normal
77 °Climate normal

Alton, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high77°
Average low63°
Average precipitation0.07 in
Chance of precipitation33%
Record high87° (2021)
Record low52° (1989)
Thu, 2776° / 63°0.13Climate normal
76 °Climate normal

Alton, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high76°
Average low63°
Average precipitation0.13 in
Chance of precipitation42%
Record high92° (2024)
Record low51° (2017)
Fri, 2876° / 64°0.17Climate normal
76 °Climate normal

Alton, Friday, 28 August

Climate normal for this date — 60-year average.

Average high76°
Average low64°
Average precipitation0.17 in
Chance of precipitation50%
Record high92° (2018)
Record low51° (1986)
Sat, 2975° / 63°0.12Climate normal
75 °Climate normal

Alton, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high75°
Average low63°
Average precipitation0.12 in
Chance of precipitation40%
Record high93° (2022)
Record low48° (1982)
Sun, 3075° / 62°0.09Climate normal
75 °Climate normal

Alton, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high75°
Average low62°
Average precipitation0.09 in
Chance of precipitation33%
Record high88° (1991)
Record low47° (1965)
Mon, 3175° / 62°0.13Climate normal
75 °Climate normal

Alton, Monday, 31 August

Climate normal for this date — 60-year average.

Average high75°
Average low62°
Average precipitation0.13 in
Chance of precipitation37%
Record high89° (1962)
Record low50° (1976)
Tue, 0174° / 61°0.06Climate normal
74 °Climate normal

Alton, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high74°
Average low61°
Average precipitation0.06 in
Chance of precipitation25%
Record high90° (2010)
Record low51° (2025)
Wed, 0275° / 61°0.13Climate normal
75 °Climate normal

Alton, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high75°
Average low61°
Average precipitation0.13 in
Chance of precipitation37%
Record high87° (2010)
Record low47° (2017)
Thu, 0375° / 61°0.1Climate normal
75 °Climate normal

Alton, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high75°
Average low61°
Average precipitation0.1 in
Chance of precipitation37%
Record high91° (2018)
Record low49° (1976)
Fri, 0474° / 62°0.11Climate normal
74 °Climate normal

Alton, Friday, 4 September

Climate normal for this date — 60-year average.

Average high74°
Average low62°
Average precipitation0.11 in
Chance of precipitation35%
Record high89° (1973)
Record low50° (1987)
Sat, 0574° / 61°0.11Climate normal
74 °Climate normal

Alton, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high74°
Average low61°
Average precipitation0.11 in
Chance of precipitation30%
Record high91° (2018)
Record low50° (1963)
Sun, 0674° / 61°0.1Climate normal
74 °Climate normal

Alton, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high74°
Average low61°
Average precipitation0.1 in
Chance of precipitation33%
Record high89° (2023)
Record low49° (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 Alton, NY 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 Alton, NY 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.