Monthly outlook for Lynnville, IA: average high 82.1°, average low 63.4°. That is 0.9° above the climate normal for August. Precipitation is expected on 3 days (about 0.3 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 9 August (93.5°), the coolest 21 August (50.6°).
82.1°/63.4°
Average high / low
+0.9°
Above normal
3 / 5
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
82.5°
80.6°
+1.1°
18 August – 27 August
81.5°
80.7°
+0.4°
28 August – 6 September
at normal
79.3°
—
August records over 66 years
99.7°16 August 1988All-time high
44.1°28 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Malcom (15 mi).
Sun, 0993° / 72°0
93 °
Lynnville, Sunday, 9 August
Partly cloudy. High 93°, low 72°.
Pressure29.80 inHg
Wind11.4 mph SW
Humidity54%
Visibility6.2 mi
Dew point70°
Mon, 1091° / 73°0.04
91 °
Lynnville, Monday, 10 August
Light rain. High 91°, low 73°.
Pressure29.85 inHg
Wind5.6 mph S
Humidity55%
Visibility6.2 mi
Dew point69°
Tue, 1192° / 71°0
92 °
Lynnville, Tuesday, 11 August
Partly cloudy. High 92°, low 71°.
Pressure29.77 inHg
Wind9.2 mph SW
Humidity53%
Visibility6.2 mi
Dew point69°
Wed, 1285° / 69°0.02
85 °
Lynnville, Wednesday, 12 August
Light rain. High 85°, low 69°.
Pressure29.85 inHg
Wind13.3 mph E
Humidity68%
Visibility6.2 mi
Dew point67°
Thu, 1372° / 61°0.1
72 °
Lynnville, Thursday, 13 August
Light rain. High 72°, low 61°.
Pressure29.94 inHg
Wind13.2 mph NE
Humidity69%
Visibility—
Dew point60°
Fri, 1479° / 59°0
79 °
Lynnville, Friday, 14 August
Overcast. High 79°, low 59°.
Pressure30.09 inHg
Wind10.2 mph E
Humidity49%
Visibility—
Dew point55°
Sat, 1568° / 60°0.11
68 °
Lynnville, Saturday, 15 August
Light rain. High 68°, low 60°.
Pressure30.21 inHg
Wind15.3 mph E
Humidity91%
Visibility—
Dew point58°
Sun, 1678° / 62°0
78 °
Lynnville, Sunday, 16 August
Overcast. High 78°, low 62°.
Pressure30.12 inHg
Wind6.7 mph E
Humidity76%
Visibility—
Dew point62°
Mon, 1785° / 66°0.02
85 °
Lynnville, Monday, 17 August
Light rain. High 85°, low 66°.
Pressure30.03 inHg
Wind8.1 mph S
Humidity59%
Visibility—
Dew point65°
Tue, 1889° / 68°0
89 °
Lynnville, Tuesday, 18 August
Partly cloudy. High 89°, low 68°.
Pressure29.94 inHg
Wind11.8 mph S
Humidity58%
Visibility—
Dew point67°
Wed, 1978° / 61°0
78 °
Lynnville, Wednesday, 19 August
Light rain. High 78°, low 61°.
Pressure30.03 inHg
Wind14.9 mph N
Humidity79%
Visibility—
Dew point60°
Thu, 2069° / 56°0.01
69 °
Lynnville, Thursday, 20 August
Light rain. High 69°, low 56°.
Pressure30.09 inHg
Wind15.1 mph NE
Humidity51%
Visibility—
Dew point48°
Fri, 2173° / 51°0
73 °
Lynnville, Friday, 21 August
Overcast. High 73°, low 51°.
Pressure30.03 inHg
Wind11.1 mph SE
Humidity48%
Visibility—
Dew point47°
Sat, 2290° / 59°0
90 °
Lynnville, Saturday, 22 August
Partly cloudy. High 90°, low 59°.
Pressure29.83 inHg
Wind13.1 mph SW
Humidity54%
Visibility—
Dew point60°
Sun, 2389° / 65°0
89 °
Lynnville, Sunday, 23 August
Clear. High 89°, low 65°.
Pressure29.94 inHg
Wind8.5 mph SW
Humidity28%
Visibility—
Dew point47°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2481° / 64°0.08
81 °
Lynnville, Monday, 24 August
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.08 in
Chance of precipitation18%
Record high96° (2023)
Record low50° (1966)
Tue, 2581° / 64°0.17
81 °
Lynnville, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.17 in
Chance of precipitation35%
Record high96° (2003)
Record low52° (2025)
Wed, 2681° / 65°0.19
81 °
Lynnville, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.19 in
Chance of precipitation33%
Record high94° (1983)
Record low49° (1964)
Thu, 2781° / 65°0.15
81 °
Lynnville, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.15 in
Chance of precipitation33%
Record high96° (2013)
Record low53° (1967)
Fri, 2881° / 64°0.19
81 °
Lynnville, Friday, 28 August
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.19 in
Chance of precipitation32%
Record high97° (1984)
Record low44° (1986)
Sat, 2981° / 64°0.09
81 °
Lynnville, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.09 in
Chance of precipitation28%
Record high96° (1984)
Record low48° (1988)
Sun, 3080° / 63°0.11
80 °
Lynnville, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.11 in
Chance of precipitation25%
Record high97° (2013)
Record low50° (2009)
Mon, 3179° / 62°0.1
79 °
Lynnville, Monday, 31 August
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.1 in
Chance of precipitation18%
Record high95° (2000)
Record low46° (2009)
Tue, 0179° / 62°0.09
79 °
Lynnville, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.09 in
Chance of precipitation28%
Record high95° (1984)
Record low46° (1967)
Wed, 0280° / 63°0.1
80 °
Lynnville, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.1 in
Chance of precipitation28%
Record high94° (2000)
Record low50° (1968)
Thu, 0379° / 63°0.07
79 °
Lynnville, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.07 in
Chance of precipitation27%
Record high93° (2023)
Record low43° (1974)
Fri, 0478° / 61°0.07
78 °
Lynnville, Friday, 4 September
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.07 in
Chance of precipitation27%
Record high94° (2023)
Record low42° (1974)
Sat, 0579° / 61°0.08
79 °
Lynnville, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high79°
Average low61°
Average precipitation0.08 in
Chance of precipitation22%
Record high94° (1960)
Record low44° (1962)
Sun, 0678° / 61°0.13
78 °
Lynnville, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.13 in
Chance of precipitation27%
Record high94° (1960)
Record low45° (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 Lynnville, 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 Lynnville, 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.