Monthly outlook for Armstrong, IN: average high 84.3°, average low 68.2°. That is 0.8° below the climate normal for August. Precipitation is expected on 8 days (about 2.1 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 11 August (94.7°), the coolest 21 August (58°).
84.3°/68.2°
Average high / low
−0.8°
Below normal
8 / 5
Wet days / normal
2.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
84.8°
85.6°
-0.4°
18 August – 27 August
83.6°
85.9°
-1.3°
28 August – 6 September
at normal
84.3°
—
August records over 66 years
103.1°15 August 2007All-time high
51.6°30 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Evansville (10 mi).
Sun, 0992° / 74°0
92 °
Armstrong, Sunday, 9 August
Mostly clear. High 92°, low 74°.
Pressure30.03 inHg
Wind10 mph SW
Humidity66%
Visibility6.2 mi
Dew point74°
Mon, 1092° / 74°0
92 °
Armstrong, Monday, 10 August
Mostly clear. High 92°, low 74°.
Pressure30.03 inHg
Wind13.4 mph SW
Humidity64%
Visibility6.2 mi
Dew point73°
Tue, 1195° / 74°0
95 °
Armstrong, Tuesday, 11 August
Partly cloudy. High 95°, low 74°.
Pressure29.94 inHg
Wind12.4 mph SW
Humidity57%
Visibility6.2 mi
Dew point73°
Wed, 1282° / 68°0.21
82 °
Armstrong, Wednesday, 12 August
Rain. High 82°, low 68°.
Pressure29.85 inHg
Wind10.4 mph W
Humidity72%
Visibility6.2 mi
Dew point73°
Thu, 1380° / 68°0.15
80 °
Armstrong, Thursday, 13 August
Light rain. High 80°, low 68°.
Pressure29.97 inHg
Wind8.6 mph NE
Humidity76%
Visibility—
Dew point70°
Fri, 1476° / 68°1.1
76 °
Armstrong, Friday, 14 August
Heavy rain. High 76°, low 68°.
Pressure30.03 inHg
Wind10.3 mph NE
Humidity88%
Visibility—
Dew point71°
Sat, 1575° / 65°0.09
75 °
Armstrong, Saturday, 15 August
Light rain. High 75°, low 65°.
Pressure30.24 inHg
Wind13.7 mph E
Humidity76%
Visibility—
Dew point64°
Sun, 1686° / 65°0.15
86 °
Armstrong, Sunday, 16 August
Light rain. High 86°, low 65°.
Pressure30.06 inHg
Wind9.3 mph SE
Humidity71%
Visibility—
Dew point70°
Mon, 1781° / 70°0.06
81 °
Armstrong, Monday, 17 August
Light rain. High 81°, low 70°.
Pressure30.03 inHg
Wind6.3 mph N
Humidity81%
Visibility—
Dew point72°
Tue, 1885° / 70°0.16
85 °
Armstrong, Tuesday, 18 August
Light rain. High 85°, low 70°.
Pressure30.00 inHg
Wind6.8 mph E
Humidity68%
Visibility—
Dew point71°
Wed, 1985° / 70°0
85 °
Armstrong, Wednesday, 19 August
Overcast. High 85°, low 70°.
Pressure29.91 inHg
Wind14 mph N
Humidity67%
Visibility—
Dew point71°
Thu, 2076° / 59°0
76 °
Armstrong, Thursday, 20 August
Clear. High 76°, low 59°.
Pressure30.00 inHg
Wind11 mph N
Humidity60%
Visibility—
Dew point58°
Fri, 2177° / 58°0.01
77 °
Armstrong, Friday, 21 August
Light rain. High 77°, low 58°.
Pressure30.06 inHg
Wind10.7 mph NE
Humidity54%
Visibility—
Dew point55°
Sat, 2286° / 62°0.11
86 °
Armstrong, Saturday, 22 August
Light rain. High 86°, low 62°.
Pressure29.85 inHg
Wind13.7 mph SW
Humidity63%
Visibility—
Dew point67°
Sun, 2392° / 73°0
92 °
Armstrong, Sunday, 23 August
Light rain. High 92°, low 73°.
Pressure29.94 inHg
Wind8.9 mph W
Humidity58%
Visibility—
Dew point70°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2485° / 69°0.08
85 °
Armstrong, Monday, 24 August
Climate normal for this date — 60-year average.
Average high85°
Average low69°
Average precipitation0.08 in
Chance of precipitation25%
Record high98° (2007)
Record low58° (2009)
Tue, 2586° / 69°0.05
86 °
Armstrong, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high86°
Average low69°
Average precipitation0.05 in
Chance of precipitation17%
Record high98° (2023)
Record low58° (2015)
Wed, 2686° / 69°0.07
86 °
Armstrong, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high86°
Average low69°
Average precipitation0.07 in
Chance of precipitation22%
Record high96° (1983)
Record low57° (2025)
Thu, 2786° / 70°0.11
86 °
Armstrong, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high86°
Average low70°
Average precipitation0.11 in
Chance of precipitation33%
Record high95° (1965)
Record low56° (2025)
Fri, 2886° / 69°0.16
86 °
Armstrong, Friday, 28 August
Climate normal for this date — 60-year average.
Average high86°
Average low69°
Average precipitation0.16 in
Chance of precipitation32%
Record high96° (2007)
Record low57° (1967)
Sat, 2985° / 69°0.11
85 °
Armstrong, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high85°
Average low69°
Average precipitation0.11 in
Chance of precipitation27%
Record high96° (2024)
Record low52° (1986)
Sun, 3085° / 69°0.15
85 °
Armstrong, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high85°
Average low69°
Average precipitation0.15 in
Chance of precipitation23%
Record high95° (2024)
Record low52° (1986)
Mon, 3185° / 69°0.07
85 °
Armstrong, Monday, 31 August
Climate normal for this date — 60-year average.
Average high85°
Average low69°
Average precipitation0.07 in
Chance of precipitation33%
Record high96° (1995)
Record low58° (2009)
Tue, 0185° / 69°0.12
85 °
Armstrong, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high85°
Average low69°
Average precipitation0.12 in
Chance of precipitation30%
Record high98° (2011)
Record low54° (1967)
Wed, 0284° / 68°0.13
84 °
Armstrong, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high84°
Average low68°
Average precipitation0.13 in
Chance of precipitation28%
Record high97° (2011)
Record low55° (1965)
Thu, 0384° / 68°0.12
84 °
Armstrong, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high84°
Average low68°
Average precipitation0.12 in
Chance of precipitation28%
Record high99° (2011)
Record low55° (1974)
Fri, 0483° / 67°0.08
83 °
Armstrong, Friday, 4 September
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.08 in
Chance of precipitation23%
Record high96° (2007)
Record low53° (1974)
Sat, 0583° / 67°0.1
83 °
Armstrong, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.1 in
Chance of precipitation25%
Record high95° (1960)
Record low53° (1997)
Sun, 0683° / 66°0.03
83 °
Armstrong, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.03 in
Chance of precipitation18%
Record high95° (1998)
Record low55° (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 Armstrong, IN 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 Armstrong, IN 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.