As of 20:59 CDT

Weather in Jacksonville, IA

74°Current weather

Jacksonville, Saturday, 8 August, 20:59

Overcast. Feels like 75°. High 80°, low 61°.

Pressure29.88 inHg
Wind8.5 mph SE
Humidity84%
Visibility6.2 mi
Dew point68°

Monthly outlook for Jacksonville, IA: average high 82.4°, average low 63.6°. That is 0.7° above the climate normal for August. Precipitation is expected on 4 days (about 1.0 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 11 August (95.7°), the coolest 21 August (51.4°).

82.4°/63.6°
Average high / low
+0.7°
Above normal
4 / 5
Wet days / normal
1.0 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 August – 17 August82.8°81.2°+0.9°
18 August – 27 August81.9°81.2°+0.4°
28 August – 6 Septemberat normal80°

August records over 66 years

100.4°16 August 1983All-time high
43.2°28 August 1986All-time low

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

Sun, 0995° / 74°0.02Light rain
95 °Light rain

Jacksonville, Sunday, 9 August

Light rain. High 95°, low 74°.

Pressure29.77 inHg
Wind14.8 mph SW
Humidity47%
Visibility6.2 mi
Dew point66°
Mon, 1090° / 72°0Overcast
90 °Overcast

Jacksonville, Monday, 10 August

Overcast. High 90°, low 72°.

Pressure29.80 inHg
Wind10.4 mph S
Humidity55%
Visibility6.2 mi
Dew point66°
Tue, 1196° / 72°0Mostly clear
96 °Mostly clear

Jacksonville, Tuesday, 11 August

Mostly clear. High 96°, low 72°.

Pressure29.74 inHg
Wind1.9 mph S
Humidity43%
Visibility6.2 mi
Dew point64°
Wed, 1289° / 69°0.06Light rain
89 °Light rain

Jacksonville, Wednesday, 12 August

Light rain. High 89°, low 69°.

Pressure29.88 inHg
Wind9.8 mph E
Humidity50%
Visibility6.2 mi
Dew point62°
Thu, 1371° / 62°0.65Rain
71 °Rain

Jacksonville, Thursday, 13 August

Rain. High 71°, low 62°.

Pressure29.94 inHg
Wind17.2 mph NE
Humidity94%
Visibility
Dew point62°
Fri, 1477° / 59°0Overcast
77 °Overcast

Jacksonville, Friday, 14 August

Overcast. High 77°, low 59°.

Pressure30.06 inHg
Wind15.5 mph E
Humidity54%
Visibility
Dew point56°
Sat, 1566° / 59°0.12Light rain
66 °Light rain

Jacksonville, Saturday, 15 August

Light rain. High 66°, low 59°.

Pressure30.15 inHg
Wind11.5 mph E
Humidity98%
Visibility
Dew point63°
Sun, 1678° / 60°0Light rain
78 °Light rain

Jacksonville, Sunday, 16 August

Light rain. High 78°, low 60°.

Pressure30.09 inHg
Wind6.2 mph SE
Humidity66%
Visibility
Dew point63°
Mon, 1786° / 66°0Clear
86 °Clear

Jacksonville, Monday, 17 August

Clear. High 86°, low 66°.

Pressure30.03 inHg
Wind9.2 mph S
Humidity56%
Visibility
Dew point64°
Tue, 1892° / 68°0.07Light rain
92 °Light rain

Jacksonville, Tuesday, 18 August

Light rain. High 92°, low 68°.

Pressure29.94 inHg
Wind10.6 mph SW
Humidity59%
Visibility
Dew point69°
Wed, 1980° / 65°0.03Light rain
80 °Light rain

Jacksonville, Wednesday, 19 August

Light rain. High 80°, low 65°.

Pressure30.06 inHg
Wind15.9 mph NE
Humidity67%
Visibility
Dew point58°
Thu, 2065° / 56°0.02Light rain
65 °Light rain

Jacksonville, Thursday, 20 August

Light rain. High 65°, low 56°.

Pressure30.12 inHg
Wind15.2 mph E
Humidity61%
Visibility
Dew point50°
Fri, 2172° / 51°0Overcast
72 °Overcast

Jacksonville, Friday, 21 August

Overcast. High 72°, low 51°.

Pressure30.03 inHg
Wind14.7 mph SE
Humidity44%
Visibility
Dew point45°
Sat, 2292° / 58°0.03Light rain
92 °Light rain

Jacksonville, Saturday, 22 August

Light rain. High 92°, low 58°.

Pressure29.80 inHg
Wind14.3 mph NW
Humidity31%
Visibility
Dew point50°
Sun, 2391° / 65°0Mostly clear
91 °Mostly clear

Jacksonville, Sunday, 23 August

Mostly clear. High 91°, low 65°.

Pressure29.94 inHg
Wind8.6 mph SW
Humidity25%
Visibility
Dew point46°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2481° / 65°0.07Climate normal
81 °Climate normal

Jacksonville, Monday, 24 August

Climate normal for this date — 60-year average.

Average high81°
Average low65°
Average precipitation0.07 in
Chance of precipitation23%
Record high95° (2023)
Record low48° (1966)
Tue, 2581° / 64°0.11Climate normal
81 °Climate normal

Jacksonville, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high81°
Average low64°
Average precipitation0.11 in
Chance of precipitation33%
Record high96° (2003)
Record low50° (2015)
Wed, 2681° / 65°0.15Climate normal
81 °Climate normal

Jacksonville, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high81°
Average low65°
Average precipitation0.15 in
Chance of precipitation33%
Record high93° (2013)
Record low51° (2015)
Thu, 2781° / 65°0.12Climate normal
81 °Climate normal

Jacksonville, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high81°
Average low65°
Average precipitation0.12 in
Chance of precipitation40%
Record high95° (2013)
Record low51° (1971)
Fri, 2881° / 64°0.18Climate normal
81 °Climate normal

Jacksonville, Friday, 28 August

Climate normal for this date — 60-year average.

Average high81°
Average low64°
Average precipitation0.18 in
Chance of precipitation32%
Record high96° (1984)
Record low43° (1986)
Sat, 2982° / 64°0.11Climate normal
82 °Climate normal

Jacksonville, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high82°
Average low64°
Average precipitation0.11 in
Chance of precipitation22%
Record high93° (2013)
Record low52° (1988)
Sun, 3080° / 64°0.08Climate normal
80 °Climate normal

Jacksonville, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high80°
Average low64°
Average precipitation0.08 in
Chance of precipitation22%
Record high95° (2012)
Record low48° (2009)
Mon, 3180° / 63°0.07Climate normal
80 °Climate normal

Jacksonville, Monday, 31 August

Climate normal for this date — 60-year average.

Average high80°
Average low63°
Average precipitation0.07 in
Chance of precipitation25%
Record high94° (2012)
Record low48° (2009)
Tue, 0180° / 63°0.09Climate normal
80 °Climate normal

Jacksonville, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high80°
Average low63°
Average precipitation0.09 in
Chance of precipitation25%
Record high93° (1984)
Record low48° (1967)
Wed, 0280° / 63°0.11Climate normal
80 °Climate normal

Jacksonville, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high80°
Average low63°
Average precipitation0.11 in
Chance of precipitation32%
Record high94° (2000)
Record low50° (1974)
Thu, 0379° / 63°0.08Climate normal
79 °Climate normal

Jacksonville, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high79°
Average low63°
Average precipitation0.08 in
Chance of precipitation23%
Record high92° (2023)
Record low40° (1974)
Fri, 0479° / 62°0.09Climate normal
79 °Climate normal

Jacksonville, Friday, 4 September

Climate normal for this date — 60-year average.

Average high79°
Average low62°
Average precipitation0.09 in
Chance of precipitation30%
Record high95° (2012)
Record low45° (1974)
Sat, 0579° / 62°0.09Climate normal
79 °Climate normal

Jacksonville, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high79°
Average low62°
Average precipitation0.09 in
Chance of precipitation25%
Record high91° (1990)
Record low44° (1962)
Sun, 0680° / 62°0.06Climate normal
80 °Climate normal

Jacksonville, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high80°
Average low62°
Average precipitation0.06 in
Chance of precipitation17%
Record high94° (2020)
Record low45° (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 Jacksonville, 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 Jacksonville, 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.