As of 20:16 EDT

Weather in Union, SC

67°

Union, Saturday, 10 October, 20:16

Heavy rain. Feels like 67°. High 67°, low 60°.

Pressure29.97 inHg

Wind14.9 mph E

Humidity94%

Visibility1.8 mi

Dew point65°

See detailed hourly forecast

Monthly outlook for Union, SC: average high 70°, average low 50.7°. That is 0.3° below the climate normal for October. Precipitation is expected on 4 days (about 4.3 inches), against a normal of 3 days and 1.5 inches. The warmest day looks like 15 October (86.3°), the coolest 20 October (34.8°).

70°/50.7°

Average high / low

−0.3°

Below normal

4 / 3

Wet days / normal

4.3 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
10 October – 19 October	75°	71.6°	+1.9°
20 October – 29 October	61.6°	68.3°	-3.7°
30 October – 8 November	at normal	65.3°	—

October records over 66 years

95.9°3 October 2019All-time high

31.3°29 October 1976All-time low

Climate normals and records are computed from the nearest reference point — Glenn Springs (14 mi).

Sun, 1170° / 64°

1.2

70 °

Union, Sunday, 11 October

Heavy rain. High 70°, low 64°.

Pressure29.94 inHg

Wind12.8 mph SW

Humidity70%

Visibility6.2 mi

Dew point60°

Mon, 1281° / 64°

81 °

Union, Monday, 12 October

Clear. High 81°, low 64°.

Pressure30.00 inHg

Wind8.4 mph NW

Humidity61%

Visibility6.2 mi

Dew point62°

Tue, 1384° / 58°

84 °

Union, Tuesday, 13 October

Clear. High 84°, low 58°.

Pressure30.06 inHg

Wind2.3 mph S

Humidity58%

Visibility6.2 mi

Dew point63°

Wed, 1486° / 62°

86 °

Union, Wednesday, 14 October

Clear. High 86°, low 62°.

Pressure30.06 inHg

Wind0.6 mph E

Humidity55%

Visibility6.2 mi

Dew point62°

Thu, 1586° / 64°

86 °

Union, Thursday, 15 October

Clear. High 86°, low 64°.

Pressure30.09 inHg

Wind5.9 mph N

Humidity54%

Visibility—

Dew point64°

Fri, 1684° / 65°

84 °

Union, Friday, 16 October

Mostly clear. High 84°, low 65°.

Pressure30.00 inHg

Wind7.1 mph SW

Humidity45%

Visibility—

Dew point58°

Sat, 1779° / 48°

79 °

Union, Saturday, 17 October

Overcast. High 79°, low 48°.

Pressure29.83 inHg

Wind12.7 mph NW

Humidity35%

Visibility—

Dew point47°

Sun, 1857° / 37°

57 °

Union, Sunday, 18 October

Clear. High 57°, low 37°.

Pressure30.27 inHg

Wind11.2 mph N

Humidity32%

Visibility—

Dew point24°

Mon, 1957° / 38°

57 °

Union, Monday, 19 October

Clear. High 57°, low 38°.

Pressure30.53 inHg

Wind10.5 mph NE

Humidity25%

Visibility—

Dew point19°

Tue, 2060° / 35°

60 °

Union, Tuesday, 20 October

Clear. High 60°, low 35°.

Pressure30.45 inHg

Wind9.2 mph NE

Humidity24%

Visibility—

Dew point19°

Wed, 2164° / 36°

64 °

Union, Wednesday, 21 October

Clear. High 64°, low 36°.

Pressure30.39 inHg

Wind8.3 mph NE

Humidity28%

Visibility—

Dew point26°

Thu, 2266° / 41°

66 °

Union, Thursday, 22 October

Clear. High 66°, low 41°.

Pressure30.42 inHg

Wind8.8 mph NE

Humidity38%

Visibility—

Dew point36°

Fri, 2367° / 43°

67 °

Union, Friday, 23 October

Overcast. High 67°, low 43°.

Pressure30.24 inHg

Wind7 mph NE

Humidity42%

Visibility—

Dew point40°

Sat, 2455° / 50°

0.71

55 °

Union, Saturday, 24 October

Rain. High 55°, low 50°.

Pressure29.97 inHg

Wind9.4 mph N

Humidity97%

Visibility—

Dew point53°

Sun, 2558° / 48°

0.07

58 °

Union, Sunday, 25 October

Light rain. High 58°, low 48°.

Pressure29.85 inHg

Wind5.1 mph NW

Humidity87%

Visibility—

Dew point52°

From day 17 onward the outlook is built from 60-year climate statistics

Mon, 2668° / 51°

0.15

68 °

Union, Monday, 26 October

Climate normal for this date — 60-year average.

Average high68°

Average low51°

Average precipitation0.15 in

Chance of precipitation25%

Record high82° (2024)

Record low35° (2013)

Tue, 2768° / 51°

0.15

68 °

Union, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high68°

Average low51°

Average precipitation0.15 in

Chance of precipitation25%

Record high82° (1963)

Record low33° (1962)

Wed, 2868° / 51°

0.13

68 °

Union, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high68°

Average low51°

Average precipitation0.13 in

Chance of precipitation28%

Record high82° (2023)

Record low35° (2001)

Thu, 2967° / 49°

0.07

67 °

Union, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high67°

Average low49°

Average precipitation0.07 in

Chance of precipitation22%

Record high81° (2020)

Record low31° (1976)

Fri, 3067° / 49°

0.1

67 °

Union, Friday, 30 October

Climate normal for this date — 60-year average.

Average high67°

Average low49°

Average precipitation0.1 in

Chance of precipitation18%

Record high83° (2016)

Record low33° (1965)

Sat, 3167° / 50°

0.06

67 °

Union, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high67°

Average low50°

Average precipitation0.06 in

Chance of precipitation27%

Record high82° (2016)

Record low39° (2011)

Sun, 0167° / 50°

0.12

67 °

Union, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high67°

Average low50°

Average precipitation0.12 in

Chance of precipitation27%

Record high82° (1961)

Record low36° (1993)

Mon, 0267° / 50°

0.18

67 °

Union, Monday, 2 November

Climate normal for this date — 60-year average.

Average high67°

Average low50°

Average precipitation0.18 in

Chance of precipitation28%

Record high83° (1974)

Record low33° (1993)

Tue, 0366° / 48°

0.06

66 °

Union, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high66°

Average low48°

Average precipitation0.06 in

Chance of precipitation22%

Record high83° (1974)

Record low32° (2014)

Wed, 0464° / 48°

0.13

64 °

Union, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high64°

Average low48°

Average precipitation0.13 in

Chance of precipitation30%

Record high79° (1961)

Record low29° (1966)

Thu, 0563° / 48°

0.1

63 °

Union, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high63°

Average low48°

Average precipitation0.1 in

Chance of precipitation25%

Record high77° (1975)

Record low32° (2006)

Fri, 0664° / 47°

0.08

64 °

Union, Friday, 6 November

Climate normal for this date — 60-year average.

Average high64°

Average low47°

Average precipitation0.08 in

Chance of precipitation18%

Record high79° (1961)

Record low30° (1976)

Sat, 0764° / 47°

0.09

64 °

Union, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high64°

Average low47°

Average precipitation0.09 in

Chance of precipitation22%

Record high80° (2022)

Record low30° (1967)

Sun, 0864° / 46°

0.06

64 °

Union, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high64°

Average low46°

Average precipitation0.06 in

Chance of precipitation25%

Record high80° (2023)

Record low29° (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 Union, 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 Union, 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.