Monthly outlook for Morning Sun, IA: average high 83.8°, average low 64.4°. That is 1.2° above the climate normal for August. Precipitation is expected on 3 days (about 1.4 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 11 August (96.1°), the coolest 23 August (59°).
83.8°/64.4°
Average high / low
+1.2°
Above normal
3 / 5
Wet days / normal
1.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
83.6°
81.8°
+1°
19 August – 28 August
84.1°
81.8°
+1.3°
29 August – 7 September
at normal
80°
—
August records over 66 years
101.5°16 August 1988All-time high
46.8°29 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Mediapolis (7 mi).
Mon, 1092° / 73°0
92 °
Morning Sun, Monday, 10 August
Overcast. High 92°, low 73°.
Pressure29.85 inHg
Wind5.5 mph SW
Humidity54%
Visibility6.2 mi
Dew point69°
Tue, 1196° / 71°0
96 °
Morning Sun, Tuesday, 11 August
Overcast. High 96°, low 71°.
Pressure29.77 inHg
Wind18.3 mph S
Humidity53%
Visibility6.2 mi
Dew point69°
Wed, 1287° / 70°0.02
87 °
Morning Sun, Wednesday, 12 August
Light rain. High 87°, low 70°.
Pressure29.85 inHg
Wind8.5 mph NE
Humidity66%
Visibility6.2 mi
Dew point72°
Thu, 1373° / 64°0.77
73 °
Morning Sun, Thursday, 13 August
Rain. High 73°, low 64°.
Pressure29.88 inHg
Wind10.2 mph E
Humidity94%
Visibility6.2 mi
Dew point71°
Fri, 1472° / 64°0.4
72 °
Morning Sun, Friday, 14 August
Light rain. High 72°, low 64°.
Pressure30.06 inHg
Wind14.7 mph E
Humidity87%
Visibility—
Dew point67°
Sat, 1582° / 64°0.18
82 °
Morning Sun, Saturday, 15 August
Light rain. High 82°, low 64°.
Pressure30.09 inHg
Wind15 mph E
Humidity86%
Visibility—
Dew point69°
Sun, 1677° / 63°0
77 °
Morning Sun, Sunday, 16 August
Light rain. High 77°, low 63°.
Pressure30.09 inHg
Wind13.8 mph N
Humidity74%
Visibility—
Dew point66°
Mon, 1779° / 60°0
79 °
Morning Sun, Monday, 17 August
Partly cloudy. High 79°, low 60°.
Pressure30.12 inHg
Wind7.6 mph SE
Humidity56%
Visibility—
Dew point58°
Tue, 1885° / 61°0
85 °
Morning Sun, Tuesday, 18 August
Overcast. High 85°, low 61°.
Pressure29.83 inHg
Wind8.3 mph S
Humidity67%
Visibility—
Dew point66°
Wed, 1979° / 64°0.03
79 °
Morning Sun, Wednesday, 19 August
Light rain. High 79°, low 64°.
Pressure29.88 inHg
Wind15.2 mph NW
Humidity53%
Visibility—
Dew point59°
Thu, 2083° / 61°0
83 °
Morning Sun, Thursday, 20 August
Mostly clear. High 83°, low 61°.
Pressure29.94 inHg
Wind6.4 mph NE
Humidity53%
Visibility—
Dew point59°
Fri, 2193° / 63°0.03
93 °
Morning Sun, Friday, 21 August
Light rain. High 93°, low 63°.
Pressure29.74 inHg
Wind12.1 mph S
Humidity47%
Visibility—
Dew point62°
Sat, 2284° / 66°0.01
84 °
Morning Sun, Saturday, 22 August
Light rain. High 84°, low 66°.
Pressure29.88 inHg
Wind17.2 mph NW
Humidity38%
Visibility—
Dew point53°
Sun, 2382° / 59°0
82 °
Morning Sun, Sunday, 23 August
Clear. High 82°, low 59°.
Pressure30.15 inHg
Wind7.8 mph SE
Humidity43%
Visibility—
Dew point53°
Mon, 2485° / 60°0
85 °
Morning Sun, Monday, 24 August
Clear. High 85°, low 60°.
Pressure30.18 inHg
Wind9 mph SE
Humidity44%
Visibility—
Dew point55°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2582° / 65°0.13
82 °
Morning Sun, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.13 in
Chance of precipitation32%
Record high96° (2003)
Record low53° (1966)
Wed, 2682° / 66°0.2
82 °
Morning Sun, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.2 in
Chance of precipitation33%
Record high95° (1983)
Record low51° (2025)
Thu, 2782° / 67°0.08
82 °
Morning Sun, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high82°
Average low67°
Average precipitation0.08 in
Chance of precipitation22%
Record high96° (2024)
Record low55° (2025)
Fri, 2882° / 65°0.11
82 °
Morning Sun, Friday, 28 August
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.11 in
Chance of precipitation28%
Record high97° (1984)
Record low47° (1986)
Sat, 2982° / 65°0.09
82 °
Morning Sun, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.09 in
Chance of precipitation23%
Record high96° (1984)
Record low47° (1986)
Sun, 3081° / 65°0.08
81 °
Morning Sun, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.08 in
Chance of precipitation25%
Record high99° (2013)
Record low53° (2009)
Mon, 3180° / 64°0.16
80 °
Morning Sun, Monday, 31 August
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.16 in
Chance of precipitation27%
Record high94° (2000)
Record low49° (2009)
Tue, 0180° / 64°0.16
80 °
Morning Sun, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.16 in
Chance of precipitation27%
Record high97° (1984)
Record low48° (1967)
Wed, 0280° / 64°0.08
80 °
Morning Sun, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.08 in
Chance of precipitation30%
Record high93° (2000)
Record low50° (1967)
Thu, 0380° / 64°0.09
80 °
Morning Sun, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.09 in
Chance of precipitation28%
Record high92° (1960)
Record low48° (1974)
Fri, 0479° / 62°0.09
79 °
Morning Sun, Friday, 4 September
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.09 in
Chance of precipitation23%
Record high92° (1960)
Record low44° (1974)
Sat, 0580° / 62°0.05
80 °
Morning Sun, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high80°
Average low62°
Average precipitation0.05 in
Chance of precipitation23%
Record high92° (1960)
Record low48° (1974)
Sun, 0679° / 62°0.17
79 °
Morning Sun, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.17 in
Chance of precipitation30%
Record high93° (1960)
Record low47° (1962)
Mon, 0779° / 62°0.15
79 °
Morning Sun, Monday, 7 September
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.15 in
Chance of precipitation32%
Record high94° (2013)
Record low47° (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 Morning Sun, 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 Morning Sun, 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.