Monthly outlook for Lidderdale, IA: average high 84.8°, average low 62.1°. That is 2.4° above the climate normal for August. Precipitation is expected on 4 days (about 0.5 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 18 August (99.9°), the coolest 21 August (50.6°).
84.8°/62.1°
Average high / low
+2.4°
Above normal
4 / 5
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
84°
80.4°
+2°
18 August – 27 August
86.2°
80.7°
+3°
28 August – 6 September
at normal
79.5°
—
August records over 66 years
100°16 August 1983All-time high
42.1°28 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Glidden (5 mi).
Sun, 0993° / 71°0
93 °
Lidderdale, Sunday, 9 August
Clear. High 93°, low 71°.
Pressure29.77 inHg
Wind12.5 mph SW
Humidity37%
Visibility6.2 mi
Dew point63°
Mon, 1093° / 71°0
93 °
Lidderdale, Monday, 10 August
Overcast. High 93°, low 71°.
Pressure29.80 inHg
Wind10.1 mph E
Humidity52%
Visibility6.2 mi
Dew point65°
Tue, 1196° / 65°0
96 °
Lidderdale, Tuesday, 11 August
Partly cloudy. High 96°, low 65°.
Pressure29.77 inHg
Wind6.6 mph E
Humidity45%
Visibility6.2 mi
Dew point64°
Wed, 1290° / 69°0.03
90 °
Lidderdale, Wednesday, 12 August
Light rain. High 90°, low 69°.
Pressure29.91 inHg
Wind7.9 mph E
Humidity55%
Visibility6.2 mi
Dew point64°
Thu, 1369° / 60°0.17
69 °
Lidderdale, Thursday, 13 August
Light rain. High 69°, low 60°.
Pressure29.97 inHg
Wind11.4 mph E
Humidity93%
Visibility—
Dew point61°
Fri, 1480° / 58°0
80 °
Lidderdale, Friday, 14 August
Overcast. High 80°, low 58°.
Pressure30.09 inHg
Wind13.8 mph E
Humidity46%
Visibility—
Dew point52°
Sat, 1568° / 58°0.1
68 °
Lidderdale, Saturday, 15 August
Light rain. High 68°, low 58°.
Pressure30.18 inHg
Wind12.2 mph E
Humidity99%
Visibility—
Dew point62°
Sun, 1679° / 58°0
79 °
Lidderdale, Sunday, 16 August
Overcast. High 79°, low 58°.
Pressure30.09 inHg
Wind6.4 mph E
Humidity59%
Visibility—
Dew point61°
Mon, 1792° / 65°0
92 °
Lidderdale, Monday, 17 August
Clear. High 92°, low 65°.
Pressure30.00 inHg
Wind12 mph S
Humidity48%
Visibility—
Dew point62°
Tue, 18100° / 68°0.05
100 °
Lidderdale, Tuesday, 18 August
Light rain. High 100°, low 68°.
Pressure29.91 inHg
Wind13.5 mph SW
Humidity37%
Visibility—
Dew point60°
Wed, 1985° / 63°0.03
85 °
Lidderdale, Wednesday, 19 August
Light rain. High 85°, low 63°.
Pressure30.06 inHg
Wind13.6 mph N
Humidity60%
Visibility—
Dew point55°
Thu, 2066° / 54°0.07
66 °
Lidderdale, Thursday, 20 August
Light rain. High 66°, low 54°.
Pressure30.15 inHg
Wind10 mph SE
Humidity65%
Visibility—
Dew point50°
Fri, 2178° / 51°0
78 °
Lidderdale, Friday, 21 August
Overcast. High 78°, low 51°.
Pressure30.03 inHg
Wind15.6 mph SE
Humidity37%
Visibility—
Dew point43°
Sat, 2294° / 59°0
94 °
Lidderdale, Saturday, 22 August
Light rain. High 94°, low 59°.
Pressure29.80 inHg
Wind15.9 mph NW
Humidity31%
Visibility—
Dew point51°
Sun, 2395° / 64°0
95 °
Lidderdale, Sunday, 23 August
Mostly clear. High 95°, low 64°.
Pressure29.94 inHg
Wind9.1 mph NW
Humidity20%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2481° / 64°0.08
81 °
Lidderdale, Monday, 24 August
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.08 in
Chance of precipitation27%
Record high96° (2023)
Record low49° (1966)
Tue, 2581° / 64°0.11
81 °
Lidderdale, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.11 in
Chance of precipitation30%
Record high95° (2003)
Record low50° (2025)
Wed, 2681° / 65°0.15
81 °
Lidderdale, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.15 in
Chance of precipitation33%
Record high96° (2024)
Record low51° (2025)
Thu, 2781° / 64°0.12
81 °
Lidderdale, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.12 in
Chance of precipitation37%
Record high94° (2013)
Record low50° (1971)
Fri, 2881° / 63°0.19
81 °
Lidderdale, Friday, 28 August
Climate normal for this date — 60-year average.
Average high81°
Average low63°
Average precipitation0.19 in
Chance of precipitation28%
Record high97° (1984)
Record low42° (1986)
Sat, 2981° / 63°0.13
81 °
Lidderdale, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high81°
Average low63°
Average precipitation0.13 in
Chance of precipitation20%
Record high94° (2012)
Record low49° (1988)
Sun, 3080° / 63°0.07
80 °
Lidderdale, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.07 in
Chance of precipitation25%
Record high96° (2012)
Record low48° (2009)
Mon, 3179° / 62°0.07
79 °
Lidderdale, Monday, 31 August
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.07 in
Chance of precipitation30%
Record high92° (2012)
Record low47° (1967)
Tue, 0179° / 62°0.09
79 °
Lidderdale, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.09 in
Chance of precipitation23%
Record high92° (1984)
Record low46° (1967)
Wed, 0280° / 62°0.12
80 °
Lidderdale, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high80°
Average low62°
Average precipitation0.12 in
Chance of precipitation32%
Record high94° (2023)
Record low50° (1974)
Thu, 0379° / 62°0.07
79 °
Lidderdale, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.07 in
Chance of precipitation27%
Record high94° (2023)
Record low40° (1974)
Fri, 0479° / 62°0.1
79 °
Lidderdale, Friday, 4 September
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.1 in
Chance of precipitation27%
Record high95° (2012)
Record low45° (1974)
Sat, 0579° / 61°0.08
79 °
Lidderdale, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high79°
Average low61°
Average precipitation0.08 in
Chance of precipitation25%
Record high92° (2023)
Record low41° (1962)
Sun, 0679° / 61°0.05
79 °
Lidderdale, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high79°
Average low61°
Average precipitation0.05 in
Chance of precipitation17%
Record high94° (2020)
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 Lidderdale, 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 Lidderdale, 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.