As of 19:24 CDT

Weather in Princeton, IA

80°

Princeton, Saturday, 8 August, 19:24

Clear. Feels like 80°. High 82°, low 67°.

Pressure30.00 inHg

Wind1.9 mph S

Humidity66%

Visibility6.2 mi

Dew point67°

See detailed hourly forecast

Monthly outlook for Princeton, IA: average high 82.4°, average low 63.4°. That is 0.7° above the climate normal for August. Precipitation is expected on 5 days (about 0.7 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 11 August (91.7°), the coolest 23 August (45.4°).

82.4°/63.4°

Average high / low

+0.7°

Above normal

5 / 5

Wet days / normal

0.7 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
8 August – 17 August	83°	81.2°	+1°
18 August – 27 August	81.6°	81.2°	+0.2°
28 August – 6 September	at normal	79.6°	—

August records over 66 years

101.7°16 August 1988All-time high

46.9°28 August 1986All-time low

Climate normals and records are computed from the nearest reference point — Panorama Park (10 mi).

Sun, 0991° / 64°

0.01

91 °

Princeton, Sunday, 9 August

Light rain. High 91°, low 64°.

Pressure29.88 inHg

Wind10 mph SE

Humidity73%

Visibility6.2 mi

Dew point74°

Mon, 1088° / 73°

88 °

Princeton, Monday, 10 August

Overcast. High 88°, low 73°.

Pressure29.85 inHg

Wind6.8 mph S

Humidity63%

Visibility6.2 mi

Dew point70°

Tue, 1192° / 72°

0.01

92 °

Princeton, Tuesday, 11 August

Light rain. High 92°, low 72°.

Pressure29.77 inHg

Wind13.3 mph SW

Humidity57%

Visibility6.2 mi

Dew point71°

Wed, 1283° / 69°

0.08

83 °

Princeton, Wednesday, 12 August

Light rain. High 83°, low 69°.

Pressure29.88 inHg

Wind4.5 mph S

Humidity87%

Visibility6.2 mi

Dew point69°

Thu, 1375° / 62°

0.04

75 °

Princeton, Thursday, 13 August

Light rain. High 75°, low 62°.

Pressure29.91 inHg

Wind11.7 mph NE

Humidity68%

Visibility—

Dew point63°

Fri, 1477° / 57°

77 °

Princeton, Friday, 14 August

Clear. High 77°, low 57°.

Pressure30.18 inHg

Wind8 mph NE

Humidity51%

Visibility—

Dew point54°

Sat, 1576° / 56°

76 °

Princeton, Saturday, 15 August

Overcast. High 76°, low 56°.

Pressure30.30 inHg

Wind9 mph SE

Humidity55%

Visibility—

Dew point55°

Sun, 1678° / 57°

78 °

Princeton, Sunday, 16 August

Overcast. High 78°, low 57°.

Pressure30.15 inHg

Wind11.7 mph S

Humidity67%

Visibility—

Dew point59°

Mon, 1786° / 67°

0.02

86 °

Princeton, Monday, 17 August

Light rain. High 86°, low 67°.

Pressure29.94 inHg

Wind6 mph S

Humidity70%

Visibility—

Dew point70°

Tue, 1886° / 70°

86 °

Princeton, Tuesday, 18 August

Partly cloudy. High 86°, low 70°.

Pressure30.00 inHg

Wind8.1 mph SE

Humidity59%

Visibility—

Dew point67°

Wed, 1989° / 69°

0.26

89 °

Princeton, Wednesday, 19 August

Light rain. High 89°, low 69°.

Pressure29.88 inHg

Wind8.9 mph SW

Humidity58%

Visibility—

Dew point69°

Thu, 2081° / 65°

0.14

81 °

Princeton, Thursday, 20 August

Light rain. High 81°, low 65°.

Pressure29.94 inHg

Wind10.1 mph NE

Humidity71%

Visibility—

Dew point64°

Fri, 2184° / 62°

0.01

84 °

Princeton, Friday, 21 August

Light rain. High 84°, low 62°.

Pressure29.97 inHg

Wind5.9 mph S

Humidity50%

Visibility—

Dew point60°

Sat, 2280° / 59°

0.02

80 °

Princeton, Saturday, 22 August

Light rain. High 80°, low 59°.

Pressure29.94 inHg

Wind15.4 mph NE

Humidity62%

Visibility—

Dew point64°

Sun, 2370° / 45°

70 °

Princeton, Sunday, 23 August

Mostly clear. High 70°, low 45°.

Pressure30.24 inHg

Wind12.5 mph E

Humidity45%

Visibility—

Dew point43°

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

Mon, 2481° / 64°

0.08

81 °

Princeton, Monday, 24 August

Climate normal for this date — 60-year average.

Average high81°

Average low64°

Average precipitation0.08 in

Chance of precipitation27%

Record high97° (2023)

Record low53° (1987)

Tue, 2582° / 65°

0.12

82 °

Princeton, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high82°

Average low65°

Average precipitation0.12 in

Chance of precipitation32%

Record high94° (2003)

Record low54° (2025)

Wed, 2682° / 66°

0.19

82 °

Princeton, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high82°

Average low66°

Average precipitation0.19 in

Chance of precipitation32%

Record high95° (2003)

Record low51° (1964)

Thu, 2781° / 66°

0.11

81 °

Princeton, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high81°

Average low66°

Average precipitation0.11 in

Chance of precipitation23%

Record high97° (2024)

Record low54° (1968)

Fri, 2881° / 65°

0.14

81 °

Princeton, Friday, 28 August

Climate normal for this date — 60-year average.

Average high81°

Average low65°

Average precipitation0.14 in

Chance of precipitation35%

Record high95° (1984)

Record low47° (1986)

Sat, 2981° / 65°

0.09

81 °

Princeton, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high81°

Average low65°

Average precipitation0.09 in

Chance of precipitation22%

Record high95° (1984)

Record low47° (1986)

Sun, 3080° / 64°

0.07

80 °

Princeton, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high80°

Average low64°

Average precipitation0.07 in

Chance of precipitation22%

Record high97° (2013)

Record low54° (2009)

Mon, 3180° / 63°

0.09

80 °

Princeton, Monday, 31 August

Climate normal for this date — 60-year average.

Average high80°

Average low63°

Average precipitation0.09 in

Chance of precipitation22%

Record high94° (2000)

Record low47° (2009)

Tue, 0180° / 63°

0.11

80 °

Princeton, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high80°

Average low63°

Average precipitation0.11 in

Chance of precipitation30%

Record high95° (2011)

Record low47° (1967)

Wed, 0280° / 63°

0.08

80 °

Princeton, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high80°

Average low63°

Average precipitation0.08 in

Chance of precipitation28%

Record high93° (2000)

Record low48° (1967)

Thu, 0379° / 63°

0.11

79 °

Princeton, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high79°

Average low63°

Average precipitation0.11 in

Chance of precipitation27%

Record high92° (2023)

Record low49° (1974)

Fri, 0479° / 62°

0.1

79 °

Princeton, Friday, 4 September

Climate normal for this date — 60-year average.

Average high79°

Average low62°

Average precipitation0.1 in

Chance of precipitation23%

Record high92° (1983)

Record low46° (1974)

Sat, 0579° / 61°

0.06

79 °

Princeton, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high79°

Average low61°

Average precipitation0.06 in

Chance of precipitation22%

Record high92° (1990)

Record low49° (1974)

Sun, 0678° / 62°

0.13

78 °

Princeton, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high78°

Average low62°

Average precipitation0.13 in

Chance of precipitation30%

Record high93° (1990)

Record low46° (1962)

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 Princeton, IA 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 Princeton, IA 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.