As of 09:50 EDT

Weather in Old Morrisville, SC

83°

Old Morrisville, Sunday, 9 August, 09:50

Clear. Feels like 91°. High 91°, low 74°.

Pressure30.12 inHg

Wind3 mph W

Humidity81%

Visibility6.2 mi

Dew point76°

See detailed hourly forecast

Monthly outlook for Old Morrisville, SC: average high 93.3°, average low 74.6°. That is 3.6° above the climate normal for August. Precipitation is expected on 10 days (about 3.8 inches), against a normal of 10 days and 3.6 inches. The warmest day looks like 14 August (98.1°), the coolest 17 August (71.2°).

93.3°/74.6°

Average high / low

+3.6°

Above normal

10 / 10

Wet days / normal

3.8 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
9 August – 18 August	93.6°	87°	+3.7°
19 August – 28 August	92.8°	86.3°	+3.6°
29 August – 7 September	at normal	84.8°	—

August records over 66 years

100°21 August 1983All-time high

60.3°28 August 1968All-time low

Climate normals and records are computed from the nearest reference point — Andrews (11 mi).

Mon, 1091° / 75°

0.06

91 °

Old Morrisville, Monday, 10 August

Light rain. High 91°, low 75°.

Pressure30.12 inHg

Wind7.4 mph W

Humidity54%

Visibility6.2 mi

Dew point72°

Tue, 1196° / 74°

0.04

96 °

Old Morrisville, Tuesday, 11 August

Light rain. High 96°, low 74°.

Pressure30.03 inHg

Wind7.9 mph W

Humidity52%

Visibility6.2 mi

Dew point70°

Wed, 1297° / 76°

0.02

97 °

Old Morrisville, Wednesday, 12 August

Light rain. High 97°, low 76°.

Pressure29.94 inHg

Wind9.1 mph W

Humidity50%

Visibility6.2 mi

Dew point71°

Thu, 1397° / 73°

0.04

97 °

Old Morrisville, Thursday, 13 August

Light rain. High 97°, low 73°.

Pressure29.91 inHg

Wind8 mph SE

Humidity47%

Visibility—

Dew point68°

Fri, 1498° / 78°

0.08

98 °

Old Morrisville, Friday, 14 August

Light rain. High 98°, low 78°.

Pressure30.00 inHg

Wind8.7 mph W

Humidity43%

Visibility—

Dew point69°

Sat, 1591° / 76°

0.27

91 °

Old Morrisville, Saturday, 15 August

Light rain. High 91°, low 76°.

Pressure30.12 inHg

Wind6.2 mph N

Humidity53%

Visibility—

Dew point70°

Sun, 1686° / 75°

0.04

86 °

Old Morrisville, Sunday, 16 August

Light rain. High 86°, low 75°.

Pressure30.15 inHg

Wind8.4 mph SE

Humidity59%

Visibility—

Dew point68°

Mon, 1797° / 71°

1.12

97 °

Old Morrisville, Monday, 17 August

Heavy rain. High 97°, low 71°.

Pressure29.94 inHg

Wind14.8 mph S

Humidity49%

Visibility—

Dew point71°

Tue, 1891° / 72°

0.59

91 °

Old Morrisville, Tuesday, 18 August

Rain. High 91°, low 72°.

Pressure29.91 inHg

Wind10.3 mph SW

Humidity58%

Visibility—

Dew point72°

Wed, 1993° / 72°

93 °

Old Morrisville, Wednesday, 19 August

Overcast. High 93°, low 72°.

Pressure29.91 inHg

Wind11.7 mph SW

Humidity58%

Visibility—

Dew point71°

Thu, 2092° / 74°

92 °

Old Morrisville, Thursday, 20 August

Overcast. High 92°, low 74°.

Pressure29.83 inHg

Wind11.9 mph W

Humidity50%

Visibility—

Dew point69°

Fri, 2191° / 75°

91 °

Old Morrisville, Friday, 21 August

Overcast. High 91°, low 75°.

Pressure29.85 inHg

Wind9.1 mph W

Humidity43%

Visibility—

Dew point64°

Sat, 2295° / 76°

95 °

Old Morrisville, Saturday, 22 August

Partly cloudy. High 95°, low 76°.

Pressure29.97 inHg

Wind11.6 mph S

Humidity46%

Visibility—

Dew point68°

Sun, 2397° / 79°

0.03

97 °

Old Morrisville, Sunday, 23 August

Light rain. High 97°, low 79°.

Pressure30.00 inHg

Wind10.4 mph S

Humidity43%

Visibility—

Dew point68°

Mon, 2489° / 74°

1.19

89 °

Old Morrisville, Monday, 24 August

Rain. High 89°, low 74°.

Pressure30.06 inHg

Wind8.2 mph S

Humidity63%

Visibility—

Dew point73°

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

Tue, 2585° / 72°

0.2

85 °

Old Morrisville, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high85°

Average low72°

Average precipitation0.2 in

Chance of precipitation62%

Record high97° (1968)

Record low65° (1994)

Wed, 2686° / 72°

0.19

86 °

Old Morrisville, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high86°

Average low72°

Average precipitation0.19 in

Chance of precipitation52%

Record high95° (2023)

Record low64° (1994)

Thu, 2786° / 72°

0.23

86 °

Old Morrisville, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high86°

Average low72°

Average precipitation0.23 in

Chance of precipitation53%

Record high94° (1965)

Record low63° (1966)

Fri, 2886° / 72°

0.34

86 °

Old Morrisville, Friday, 28 August

Climate normal for this date — 60-year average.

Average high86°

Average low72°

Average precipitation0.34 in

Chance of precipitation67%

Record high94° (1987)

Record low60° (1968)

Sat, 2986° / 72°

0.15

86 °

Old Morrisville, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high86°

Average low72°

Average precipitation0.15 in

Chance of precipitation50%

Record high94° (1990)

Record low62° (1986)

Sun, 3085° / 72°

0.24

85 °

Old Morrisville, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high85°

Average low72°

Average precipitation0.24 in

Chance of precipitation58%

Record high94° (1998)

Record low61° (1986)

Mon, 3185° / 72°

0.24

85 °

Old Morrisville, Monday, 31 August

Climate normal for this date — 60-year average.

Average high85°

Average low72°

Average precipitation0.24 in

Chance of precipitation57%

Record high94° (1993)

Record low63° (1999)

Tue, 0185° / 71°

0.11

85 °

Old Morrisville, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high85°

Average low71°

Average precipitation0.11 in

Chance of precipitation45%

Record high93° (1994)

Record low60° (1999)

Wed, 0284° / 72°

0.18

84 °

Old Morrisville, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high84°

Average low72°

Average precipitation0.18 in

Chance of precipitation55%

Record high94° (2020)

Record low62° (1967)

Thu, 0385° / 71°

0.14

85 °

Old Morrisville, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high85°

Average low71°

Average precipitation0.14 in

Chance of precipitation47%

Record high94° (2010)

Record low59° (2023)

Fri, 0485° / 71°

0.19

85 °

Old Morrisville, Friday, 4 September

Climate normal for this date — 60-year average.

Average high85°

Average low71°

Average precipitation0.19 in

Chance of precipitation43%

Record high95° (2020)

Record low63° (2017)

Sat, 0584° / 71°

0.41

84 °

Old Morrisville, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high84°

Average low71°

Average precipitation0.41 in

Chance of precipitation58%

Record high93° (1975)

Record low59° (1997)

Sun, 0684° / 71°

0.19

84 °

Old Morrisville, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high84°

Average low71°

Average precipitation0.19 in

Chance of precipitation53%

Record high94° (1983)

Record low56° (1997)

Mon, 0784° / 71°

0.16

84 °

Old Morrisville, Monday, 7 September

Climate normal for this date — 60-year average.

Average high84°

Average low71°

Average precipitation0.16 in

Chance of precipitation45%

Record high94° (2023)

Record low60° (1997)

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 Old Morrisville, 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 Old Morrisville, 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.