Monthly outlook for Niangua, MO: average high 105°, average low 76.8°. That is 10.7° above the climate normal for August. Precipitation is expected on 4 days (about 0.6 inches), against a normal of 6 days and 1.7 inches. The warmest day looks like 20 August (112.7°), the coolest 9 August (70.1°).
105°/76.8°
Average high / low
+10.7°
Above normal
4 / 6
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
102.2°
85.7°
+9.2°
19 August – 28 August
109.8°
85.7°
+13.4°
29 August – 7 September
at normal
83.1°
—
August records over 66 years
105.1°20 August 2023All-time high
50.5°29 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Marshfield (6 mi).
Mon, 10101° / 73°0
101 °
Niangua, Monday, 10 August
Mostly clear. High 101°, low 73°.
Pressure29.94 inHg
Wind15.9 mph SW
Humidity33%
Visibility6.2 mi
Dew point63°
Tue, 11103° / 76°0
103 °
Niangua, Tuesday, 11 August
Clear. High 103°, low 76°.
Pressure29.91 inHg
Wind17 mph SW
Humidity31%
Visibility6.2 mi
Dew point62°
Wed, 12101° / 73°0.11
101 °
Niangua, Wednesday, 12 August
Light rain. High 101°, low 73°.
Pressure29.85 inHg
Wind16.9 mph SW
Humidity29%
Visibility6.2 mi
Dew point61°
Thu, 13100° / 74°0.01
100 °
Niangua, Thursday, 13 August
Light rain. High 100°, low 74°.
Pressure29.88 inHg
Wind12.5 mph S
Humidity50%
Visibility—
Dew point63°
Fri, 14103° / 79°0
103 °
Niangua, Friday, 14 August
Mostly clear. High 103°, low 79°.
Pressure29.91 inHg
Wind16.5 mph W
Humidity23%
Visibility—
Dew point56°
Sat, 15105° / 78°0
105 °
Niangua, Saturday, 15 August
Partly cloudy. High 105°, low 78°.
Pressure30.03 inHg
Wind17.7 mph W
Humidity20%
Visibility—
Dew point52°
Sun, 16106° / 76°0.2
106 °
Niangua, Sunday, 16 August
Rain. High 106°, low 76°.
Pressure30.03 inHg
Wind19.3 mph W
Humidity23%
Visibility—
Dew point56°
Mon, 1797° / 72°0.08
97 °
Niangua, Monday, 17 August
Light rain. High 97°, low 72°.
Pressure30.03 inHg
Wind14 mph SE
Humidity46%
Visibility—
Dew point66°
Tue, 18109° / 72°0.02
109 °
Niangua, Tuesday, 18 August
Light rain. High 109°, low 72°.
Pressure29.91 inHg
Wind14.1 mph W
Humidity25%
Visibility—
Dew point54°
Wed, 19112° / 85°0
112 °
Niangua, Wednesday, 19 August
Mostly clear. High 112°, low 85°.
Pressure29.88 inHg
Wind18.5 mph W
Humidity14%
Visibility—
Dew point48°
Thu, 20113° / 82°0
113 °
Niangua, Thursday, 20 August
Clear. High 113°, low 82°.
Pressure29.85 inHg
Wind18.4 mph W
Humidity14%
Visibility—
Dew point47°
Fri, 21112° / 85°0
112 °
Niangua, Friday, 21 August
Partly cloudy. High 112°, low 85°.
Pressure29.85 inHg
Wind17.1 mph W
Humidity13%
Visibility—
Dew point47°
Sat, 22110° / 82°0
110 °
Niangua, Saturday, 22 August
Partly cloudy. High 110°, low 82°.
Pressure29.88 inHg
Wind19.8 mph S
Humidity17%
Visibility—
Dew point51°
Sun, 23108° / 78°0
108 °
Niangua, Sunday, 23 August
Partly cloudy. High 108°, low 78°.
Pressure29.88 inHg
Wind25.8 mph SW
Humidity23%
Visibility—
Dew point56°
Mon, 24104° / 76°0.16
104 °
Niangua, Monday, 24 August
Light rain. High 104°, low 76°.
Pressure29.94 inHg
Wind15.1 mph S
Humidity24%
Visibility—
Dew point58°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2586° / 68°0.06
86 °
Niangua, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high86°
Average low68°
Average precipitation0.06 in
Chance of precipitation22%
Record high98° (2023)
Record low56° (1966)
Wed, 2686° / 68°0.08
86 °
Niangua, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high86°
Average low68°
Average precipitation0.08 in
Chance of precipitation33%
Record high97° (1983)
Record low53° (2025)
Thu, 2785° / 68°0.11
85 °
Niangua, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high85°
Average low68°
Average precipitation0.11 in
Chance of precipitation33%
Record high99° (2000)
Record low57° (1967)
Fri, 2885° / 67°0.09
85 °
Niangua, Friday, 28 August
Climate normal for this date — 60-year average.
Average high85°
Average low67°
Average precipitation0.09 in
Chance of precipitation30%
Record high99° (2000)
Record low53° (1986)
Sat, 2984° / 67°0.11
84 °
Niangua, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.11 in
Chance of precipitation32%
Record high100° (1984)
Record low51° (1986)
Sun, 3084° / 67°0.11
84 °
Niangua, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.11 in
Chance of precipitation37%
Record high100° (2000)
Record low54° (1986)
Mon, 3184° / 66°0.1
84 °
Niangua, Monday, 31 August
Climate normal for this date — 60-year average.
Average high84°
Average low66°
Average precipitation0.1 in
Chance of precipitation32%
Record high99° (2000)
Record low53° (2009)
Tue, 0183° / 66°0.13
83 °
Niangua, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.13 in
Chance of precipitation33%
Record high99° (2000)
Record low51° (1967)
Wed, 0282° / 66°0.15
82 °
Niangua, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.15 in
Chance of precipitation40%
Record high99° (2000)
Record low50° (1974)
Thu, 0383° / 66°0.1
83 °
Niangua, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.1 in
Chance of precipitation27%
Record high100° (2000)
Record low47° (1974)
Fri, 0483° / 65°0.14
83 °
Niangua, Friday, 4 September
Climate normal for this date — 60-year average.
Average high83°
Average low65°
Average precipitation0.14 in
Chance of precipitation30%
Record high97° (1998)
Record low45° (1974)
Sat, 0582° / 65°0.08
82 °
Niangua, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.08 in
Chance of precipitation33%
Record high96° (1998)
Record low50° (1974)
Sun, 0683° / 64°0.05
83 °
Niangua, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high83°
Average low64°
Average precipitation0.05 in
Chance of precipitation28%
Record high96° (1990)
Record low50° (2017)
Mon, 0783° / 64°0.09
83 °
Niangua, Monday, 7 September
Climate normal for this date — 60-year average.
Average high83°
Average low64°
Average precipitation0.09 in
Chance of precipitation30%
Record high97° (1998)
Record low51° (1988)
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 Niangua, MO 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 Niangua, MO 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.