Monthly outlook for Alston, SC: average high 74.6°, average low 54°. That is 1° above the climate normal for October. Precipitation is expected on 2 days (about 1.3 inches), against a normal of 3 days and 1.3 inches. The warmest day looks like 14 October (88°), the coolest 20 October (39.7°).
74.6°/54°
Average high / low
+1°
Above normal
2 / 3
Wet days / normal
1.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 October – 18 October
78.2°
73.9°
+2.4°
19 October – 28 October
68.6°
70.6°
-1.1°
29 October – 7 November
at normal
68°
—
October records over 66 years
96.3°3 October 2019All-time high
36.3°27 October 1962All-time low
Climate normals and records are computed from the nearest reference point — Irmo (12 mi).
Sat, 1070° / 57°1.02
70 °
Alston, Saturday, 10 October
Rain. High 70°, low 57°.
Pressure30.06 inHg
Wind14.9 mph E
Humidity98%
Visibility1.7 mi
Dew point67°
Sun, 1175° / 66°0.25
75 °
Alston, Sunday, 11 October
Rain. High 75°, low 66°.
Pressure30.00 inHg
Wind12.1 mph SW
Humidity68%
Visibility6.2 mi
Dew point58°
Mon, 1284° / 64°0
84 °
Alston, Monday, 12 October
Clear. High 84°, low 64°.
Pressure30.00 inHg
Wind8.5 mph NW
Humidity49%
Visibility6.2 mi
Dew point59°
Tue, 1388° / 61°0
88 °
Alston, Tuesday, 13 October
Clear. High 88°, low 61°.
Pressure30.00 inHg
Wind1.8 mph NW
Humidity51%
Visibility6.2 mi
Dew point61°
Wed, 1488° / 62°0
88 °
Alston, Wednesday, 14 October
Clear. High 88°, low 62°.
Pressure29.97 inHg
Wind6 mph W
Humidity39%
Visibility—
Dew point57°
Thu, 1579° / 65°0
79 °
Alston, Thursday, 15 October
Mostly clear. High 79°, low 65°.
Pressure30.15 inHg
Wind5.7 mph SE
Humidity52%
Visibility—
Dew point58°
Fri, 1682° / 60°0
82 °
Alston, Friday, 16 October
Overcast. High 82°, low 60°.
Pressure30.12 inHg
Wind6.6 mph SW
Humidity49%
Visibility—
Dew point58°
Sat, 1777° / 54°0
77 °
Alston, Saturday, 17 October
Partly cloudy. High 77°, low 54°.
Pressure29.97 inHg
Wind12.2 mph NW
Humidity40%
Visibility—
Dew point50°
Sun, 1862° / 44°0
62 °
Alston, Sunday, 18 October
Clear. High 62°, low 44°.
Pressure30.27 inHg
Wind13 mph N
Humidity31%
Visibility—
Dew point29°
Mon, 1961° / 42°0
61 °
Alston, Monday, 19 October
Partly cloudy. High 61°, low 42°.
Pressure30.39 inHg
Wind10.6 mph NE
Humidity32%
Visibility—
Dew point29°
Tue, 2065° / 40°0
65 °
Alston, Tuesday, 20 October
Clear. High 65°, low 40°.
Pressure30.33 inHg
Wind9.6 mph NE
Humidity36%
Visibility—
Dew point34°
Wed, 2166° / 44°0
66 °
Alston, Wednesday, 21 October
Partly cloudy. High 66°, low 44°.
Pressure30.27 inHg
Wind11 mph NE
Humidity53%
Visibility—
Dew point45°
Thu, 2269° / 46°0
69 °
Alston, Thursday, 22 October
Clear. High 69°, low 46°.
Pressure30.18 inHg
Wind8.4 mph NE
Humidity34%
Visibility—
Dew point37°
Fri, 2374° / 48°0
74 °
Alston, Friday, 23 October
Clear. High 74°, low 48°.
Pressure30.09 inHg
Wind3.8 mph NE
Humidity32%
Visibility—
Dew point39°
Sat, 2476° / 50°0
76 °
Alston, Saturday, 24 October
Clear. High 76°, low 50°.
Pressure30.15 inHg
Wind4.2 mph SE
Humidity31%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2569° / 54°0.09
69 °
Alston, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high69°
Average low54°
Average precipitation0.09 in
Chance of precipitation25%
Record high80° (1991)
Record low39° (2006)
Mon, 2670° / 54°0.12
70 °
Alston, Monday, 26 October
Climate normal for this date — 60-year average.
Average high70°
Average low54°
Average precipitation0.12 in
Chance of precipitation25%
Record high83° (2024)
Record low38° (2013)
Tue, 2770° / 54°0.11
70 °
Alston, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high70°
Average low54°
Average precipitation0.11 in
Chance of precipitation27%
Record high83° (1963)
Record low36° (1962)
Wed, 2870° / 55°0.09
70 °
Alston, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high70°
Average low55°
Average precipitation0.09 in
Chance of precipitation27%
Record high83° (1963)
Record low39° (2001)
Thu, 2969° / 53°0.06
69 °
Alston, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high69°
Average low53°
Average precipitation0.06 in
Chance of precipitation23%
Record high83° (2020)
Record low38° (2001)
Fri, 3069° / 53°0.11
69 °
Alston, Friday, 30 October
Climate normal for this date — 60-year average.
Average high69°
Average low53°
Average precipitation0.11 in
Chance of precipitation20%
Record high83° (2023)
Record low37° (1965)
Sat, 3170° / 53°0.07
70 °
Alston, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high70°
Average low53°
Average precipitation0.07 in
Chance of precipitation27%
Record high84° (1961)
Record low42° (2008)
Sun, 0170° / 53°0.1
70 °
Alston, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high70°
Average low53°
Average precipitation0.1 in
Chance of precipitation27%
Record high84° (1961)
Record low39° (1993)
Mon, 0269° / 53°0.09
69 °
Alston, Monday, 2 November
Climate normal for this date — 60-year average.
Average high69°
Average low53°
Average precipitation0.09 in
Chance of precipitation25%
Record high84° (1961)
Record low37° (2023)
Tue, 0368° / 52°0.04
68 °
Alston, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high68°
Average low52°
Average precipitation0.04 in
Chance of precipitation20%
Record high82° (1974)
Record low36° (1966)
Wed, 0467° / 51°0.09
67 °
Alston, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high67°
Average low51°
Average precipitation0.09 in
Chance of precipitation30%
Record high83° (1961)
Record low34° (1966)
Thu, 0566° / 51°0.06
66 °
Alston, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high66°
Average low51°
Average precipitation0.06 in
Chance of precipitation22%
Record high80° (1961)
Record low36° (2006)
Fri, 0667° / 50°0.05
67 °
Alston, Friday, 6 November
Climate normal for this date — 60-year average.
Average high67°
Average low50°
Average precipitation0.05 in
Chance of precipitation13%
Record high80° (2024)
Record low35° (1976)
Sat, 0767° / 50°0.11
67 °
Alston, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high67°
Average low50°
Average precipitation0.11 in
Chance of precipitation17%
Record high80° (2022)
Record low34° (1967)
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 Alston, SC 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 Alston, SC 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.