As of 21:54 CDT

Weather in Carnarvon, IA

72°Current weather

Carnarvon, Saturday, 8 August, 21:54

Overcast. Feels like 73°. High 79°, low 59°.

Pressure29.94 inHg
Wind10 mph SE
Humidity83%
Visibility6.2 mi
Dew point67°

Monthly outlook for Carnarvon, IA: average high 85.8°, average low 62.2°. That is 3° above the climate normal for August. Precipitation is expected on 6 days (about 0.4 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 18 August (100.4°), the coolest 21 August (51°).

85.8°/62.2°
Average high / low
+3°
Above normal
6 / 5
Wet days / normal
0.4 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 August – 17 August85.2°80.3°+2.7°
18 August – 27 August86.8°80.6°+3.5°
28 August – 6 Septemberat normal79.3°

August records over 66 years

99.7°16 August 1983All-time high
42.3°28 August 1986All-time low

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

Sun, 0993° / 72°0Clear
93 °Clear

Carnarvon, Sunday, 9 August

Clear. High 93°, low 72°.

Pressure29.74 inHg
Wind10.2 mph SW
Humidity31%
Visibility6.2 mi
Dew point60°
Mon, 1096° / 71°0Overcast
96 °Overcast

Carnarvon, Monday, 10 August

Overcast. High 96°, low 71°.

Pressure29.80 inHg
Wind10.5 mph E
Humidity48%
Visibility6.2 mi
Dew point66°
Tue, 1199° / 64°0.01Light rain
99 °Light rain

Carnarvon, Tuesday, 11 August

Light rain. High 99°, low 64°.

Pressure29.77 inHg
Wind8 mph E
Humidity39%
Visibility6.2 mi
Dew point62°
Wed, 1291° / 68°0.04Light rain
91 °Light rain

Carnarvon, Wednesday, 12 August

Light rain. High 91°, low 68°.

Pressure29.88 inHg
Wind8.6 mph E
Humidity45%
Visibility6.2 mi
Dew point61°
Thu, 1369° / 59°0.14Light rain
69 °Light rain

Carnarvon, Thursday, 13 August

Light rain. High 69°, low 59°.

Pressure29.97 inHg
Wind9.7 mph E
Humidity91%
Visibility
Dew point61°
Fri, 1481° / 58°0Overcast
81 °Overcast

Carnarvon, Friday, 14 August

Overcast. High 81°, low 58°.

Pressure30.09 inHg
Wind15.9 mph E
Humidity42%
Visibility
Dew point51°
Sat, 1569° / 59°0.04Light rain
69 °Light rain

Carnarvon, Saturday, 15 August

Light rain. High 69°, low 59°.

Pressure30.18 inHg
Wind13 mph E
Humidity97%
Visibility
Dew point62°
Sun, 1681° / 58°0Overcast
81 °Overcast

Carnarvon, Sunday, 16 August

Overcast. High 81°, low 58°.

Pressure30.06 inHg
Wind6.8 mph E
Humidity52%
Visibility
Dew point58°
Mon, 1794° / 65°0.01Light rain
94 °Light rain

Carnarvon, Monday, 17 August

Light rain. High 94°, low 65°.

Pressure30.00 inHg
Wind12.5 mph S
Humidity42%
Visibility
Dew point60°
Tue, 18100° / 69°0.07Light rain
100 °Light rain

Carnarvon, Tuesday, 18 August

Light rain. High 100°, low 69°.

Pressure29.91 inHg
Wind11.2 mph W
Humidity33%
Visibility
Dew point58°
Wed, 1986° / 63°0.04Light rain
86 °Light rain

Carnarvon, Wednesday, 19 August

Light rain. High 86°, low 63°.

Pressure30.06 inHg
Wind13.6 mph N
Humidity49%
Visibility
Dew point53°
Thu, 2066° / 55°0.06Light rain
66 °Light rain

Carnarvon, Thursday, 20 August

Light rain. High 66°, low 55°.

Pressure30.18 inHg
Wind9.5 mph SE
Humidity81%
Visibility
Dew point54°
Fri, 2180° / 51°0Overcast
80 °Overcast

Carnarvon, Friday, 21 August

Overcast. High 80°, low 51°.

Pressure30.03 inHg
Wind16.6 mph SE
Humidity35%
Visibility
Dew point43°
Sat, 2294° / 60°0.01Light rain
94 °Light rain

Carnarvon, Saturday, 22 August

Light rain. High 94°, low 60°.

Pressure29.80 inHg
Wind16.3 mph NW
Humidity31%
Visibility
Dew point51°
Sun, 2394° / 64°0Mostly clear
94 °Mostly clear

Carnarvon, Sunday, 23 August

Mostly clear. High 94°, low 64°.

Pressure29.94 inHg
Wind9 mph NW
Humidity18%
Visibility
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2481° / 65°0.07Climate normal
81 °Climate normal

Carnarvon, Monday, 24 August

Climate normal for this date — 60-year average.

Average high81°
Average low65°
Average precipitation0.07 in
Chance of precipitation22%
Record high95° (2023)
Record low48° (1966)
Tue, 2581° / 64°0.11Climate normal
81 °Climate normal

Carnarvon, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high81°
Average low64°
Average precipitation0.11 in
Chance of precipitation30%
Record high94° (2003)
Record low49° (2025)
Wed, 2681° / 65°0.13Climate normal
81 °Climate normal

Carnarvon, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high81°
Average low65°
Average precipitation0.13 in
Chance of precipitation30%
Record high94° (2024)
Record low50° (2015)
Thu, 2780° / 64°0.1Climate normal
80 °Climate normal

Carnarvon, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high80°
Average low64°
Average precipitation0.1 in
Chance of precipitation27%
Record high94° (1984)
Record low51° (1967)
Fri, 2881° / 64°0.19Climate normal
81 °Climate normal

Carnarvon, Friday, 28 August

Climate normal for this date — 60-year average.

Average high81°
Average low64°
Average precipitation0.19 in
Chance of precipitation28%
Record high98° (1984)
Record low42° (1986)
Sat, 2981° / 64°0.11Climate normal
81 °Climate normal

Carnarvon, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high81°
Average low64°
Average precipitation0.11 in
Chance of precipitation20%
Record high93° (2012)
Record low50° (1988)
Sun, 3080° / 63°0.06Climate normal
80 °Climate normal

Carnarvon, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high80°
Average low63°
Average precipitation0.06 in
Chance of precipitation22%
Record high94° (2012)
Record low48° (2009)
Mon, 3179° / 62°0.09Climate normal
79 °Climate normal

Carnarvon, Monday, 31 August

Climate normal for this date — 60-year average.

Average high79°
Average low62°
Average precipitation0.09 in
Chance of precipitation27%
Record high91° (2012)
Record low46° (2009)
Tue, 0179° / 62°0.07Climate normal
79 °Climate normal

Carnarvon, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high79°
Average low62°
Average precipitation0.07 in
Chance of precipitation25%
Record high91° (1984)
Record low47° (1967)
Wed, 0279° / 62°0.13Climate normal
79 °Climate normal

Carnarvon, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high79°
Average low62°
Average precipitation0.13 in
Chance of precipitation37%
Record high93° (2023)
Record low49° (1974)
Thu, 0378° / 62°0.07Climate normal
78 °Climate normal

Carnarvon, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high78°
Average low62°
Average precipitation0.07 in
Chance of precipitation25%
Record high93° (2023)
Record low40° (1974)
Fri, 0479° / 62°0.12Climate normal
79 °Climate normal

Carnarvon, Friday, 4 September

Climate normal for this date — 60-year average.

Average high79°
Average low62°
Average precipitation0.12 in
Chance of precipitation25%
Record high94° (2012)
Record low45° (1974)
Sat, 0578° / 62°0.07Climate normal
78 °Climate normal

Carnarvon, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high78°
Average low62°
Average precipitation0.07 in
Chance of precipitation28%
Record high91° (1960)
Record low43° (1962)
Sun, 0679° / 61°0.05Climate normal
79 °Climate normal

Carnarvon, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high79°
Average low61°
Average precipitation0.05 in
Chance of precipitation18%
Record high95° (1976)
Record low44° (2025)

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 Carnarvon, 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 Carnarvon, 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.