Monthly outlook for Nevinville, IA: average high 88.1°, average low 66.1°. That is 3.3° above the climate normal for August. Precipitation is expected on 6 days (about 1.0 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 11 August (104.4°), the coolest 17 August (61.4°).
88.1°/66.1°
Average high / low
+3.3°
Above normal
6 / 5
Wet days / normal
1.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
86.3°
82.2°
+2.3°
19 August – 28 August
91°
82.3°
+4.9°
29 August – 7 September
at normal
80.3°
—
August records over 66 years
101.1°16 August 1983All-time high
43.9°28 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Prescott (10 mi).
Mon, 1089° / 70°0.01
89 °
Nevinville, Monday, 10 August
Light rain. High 89°, low 70°.
Pressure29.85 inHg
Wind4.8 mph E
Humidity54%
Visibility6.2 mi
Dew point65°
Tue, 11104° / 69°0.12
104 °
Nevinville, Tuesday, 11 August
Rain. High 104°, low 69°.
Pressure29.74 inHg
Wind15.1 mph SW
Humidity34%
Visibility6.2 mi
Dew point62°
Wed, 1292° / 68°0
92 °
Nevinville, Wednesday, 12 August
Partly cloudy. High 92°, low 68°.
Pressure29.83 inHg
Wind8.4 mph E
Humidity47%
Visibility6.2 mi
Dew point65°
Thu, 1373° / 67°0.55
73 °
Nevinville, Thursday, 13 August
Rain. High 73°, low 67°.
Pressure29.83 inHg
Wind16.8 mph NE
Humidity86%
Visibility—
Dew point68°
Fri, 1471° / 64°0.15
71 °
Nevinville, Friday, 14 August
Light rain. High 71°, low 64°.
Pressure30.03 inHg
Wind16.4 mph E
Humidity97%
Visibility—
Dew point65°
Sat, 1585° / 66°0.05
85 °
Nevinville, Saturday, 15 August
Light rain. High 85°, low 66°.
Pressure30.03 inHg
Wind13.2 mph E
Humidity85%
Visibility—
Dew point69°
Sun, 1682° / 65°0.06
82 °
Nevinville, Sunday, 16 August
Light rain. High 82°, low 65°.
Pressure30.12 inHg
Wind12 mph N
Humidity56%
Visibility—
Dew point61°
Mon, 1779° / 61°0
79 °
Nevinville, Monday, 17 August
Overcast. High 79°, low 61°.
Pressure30.09 inHg
Wind9.4 mph SE
Humidity49%
Visibility—
Dew point56°
Tue, 1891° / 62°0.09
91 °
Nevinville, Tuesday, 18 August
Light rain. High 91°, low 62°.
Pressure29.77 inHg
Wind12.1 mph S
Humidity51%
Visibility—
Dew point63°
Wed, 1984° / 66°0
84 °
Nevinville, Wednesday, 19 August
Clear. High 84°, low 66°.
Pressure29.97 inHg
Wind12.6 mph N
Humidity42%
Visibility—
Dew point55°
Thu, 2088° / 63°0
88 °
Nevinville, Thursday, 20 August
Mostly clear. High 88°, low 63°.
Pressure29.94 inHg
Wind9.8 mph SE
Humidity40%
Visibility—
Dew point55°
Fri, 21101° / 66°0
101 °
Nevinville, Friday, 21 August
Clear. High 101°, low 66°.
Pressure29.65 inHg
Wind17.3 mph NW
Humidity30%
Visibility—
Dew point57°
Sat, 2288° / 67°0
88 °
Nevinville, Saturday, 22 August
Clear. High 88°, low 67°.
Pressure29.94 inHg
Wind14.2 mph N
Humidity29%
Visibility—
Dew point49°
Sun, 2389° / 63°0
89 °
Nevinville, Sunday, 23 August
Clear. High 89°, low 63°.
Pressure30.12 inHg
Wind9 mph E
Humidity28%
Visibility—
Dew point46°
Mon, 2496° / 68°0
96 °
Nevinville, Monday, 24 August
Partly cloudy. High 96°, low 68°.
Pressure30.09 inHg
Wind14.3 mph S
Humidity25%
Visibility—
Dew point48°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2583° / 65°0.15
83 °
Nevinville, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high83°
Average low65°
Average precipitation0.15 in
Chance of precipitation33%
Record high98° (2003)
Record low51° (1966)
Wed, 2682° / 66°0.21
82 °
Nevinville, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.21 in
Chance of precipitation38%
Record high95° (1983)
Record low51° (2025)
Thu, 2782° / 66°0.14
82 °
Nevinville, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.14 in
Chance of precipitation35%
Record high95° (1984)
Record low52° (1971)
Fri, 2882° / 65°0.12
82 °
Nevinville, Friday, 28 August
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.12 in
Chance of precipitation30%
Record high98° (1984)
Record low44° (1986)
Sat, 2982° / 65°0.06
82 °
Nevinville, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.06 in
Chance of precipitation18%
Record high97° (1984)
Record low52° (1988)
Sun, 3081° / 65°0.12
81 °
Nevinville, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.12 in
Chance of precipitation32%
Record high98° (2013)
Record low49° (2009)
Mon, 3181° / 64°0.12
81 °
Nevinville, Monday, 31 August
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.12 in
Chance of precipitation28%
Record high92° (2000)
Record low49° (2009)
Tue, 0180° / 64°0.08
80 °
Nevinville, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.08 in
Chance of precipitation27%
Record high95° (1984)
Record low48° (1967)
Wed, 0281° / 64°0.08
81 °
Nevinville, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.08 in
Chance of precipitation28%
Record high92° (2000)
Record low52° (1974)
Thu, 0380° / 64°0.08
80 °
Nevinville, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.08 in
Chance of precipitation27%
Record high91° (2023)
Record low42° (1974)
Fri, 0480° / 63°0.11
80 °
Nevinville, Friday, 4 September
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.11 in
Chance of precipitation25%
Record high94° (2012)
Record low45° (1974)
Sat, 0580° / 63°0.12
80 °
Nevinville, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.12 in
Chance of precipitation23%
Record high91° (1990)
Record low43° (1962)
Sun, 0680° / 62°0.08
80 °
Nevinville, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high80°
Average low62°
Average precipitation0.08 in
Chance of precipitation23%
Record high94° (1970)
Record low47° (1962)
Mon, 0779° / 62°0.19
79 °
Nevinville, Monday, 7 September
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.19 in
Chance of precipitation33%
Record high94° (2013)
Record low46° (1986)
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 Nevinville, 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 Nevinville, 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.