As of 13:49 EDT

Weather in Boundary City, IN

85°Current weather

Boundary City, Sunday, 9 August, 13:49

Partly cloudy. Feels like 93°. High 87°, low 66°.

Pressure30.03 inHg
Wind4 mph SW
Humidity73%
Visibility6.2 mi
Dew point75°

Monthly outlook for Boundary City, IN: average high 77.9°, average low 61°. That is 1.2° below the climate normal for August. Precipitation is expected on 8 days (about 3.9 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 10 August (91.6°), the coolest 24 August (54.1°).

77.9°/61°
Average high / low
−1.2°
Below normal
8 / 5
Wet days / normal
3.9 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
9 August – 18 August79.3°80.1°-0.5°
19 August – 28 August75.6°80.2°-2.6°
29 August – 7 Septemberat normal78.8°

August records over 66 years

96.4°19 August 1983All-time high
43.9°29 August 1965All-time low

Climate normals and records are computed from the nearest reference point — Salamonia (4 mi).

Mon, 1092° / 70°0.91Heavy rain
92 °Heavy rain

Boundary City, Monday, 10 August

Heavy rain. High 92°, low 70°.

Pressure29.97 inHg
Wind18.4 mph SW
Humidity80%
Visibility6.2 mi
Dew point73°
Tue, 1185° / 64°1.87Heavy rain
85 °Heavy rain

Boundary City, Tuesday, 11 August

Heavy rain. High 85°, low 64°.

Pressure29.97 inHg
Wind4.2 mph S
Humidity89%
Visibility6.2 mi
Dew point70°
Wed, 1281° / 66°0.26Rain
81 °Rain

Boundary City, Wednesday, 12 August

Rain. High 81°, low 66°.

Pressure29.80 inHg
Wind8.1 mph NW
Humidity84%
Visibility6.2 mi
Dew point73°
Thu, 1379° / 62°0.1Light rain
79 °Light rain

Boundary City, Thursday, 13 August

Light rain. High 79°, low 62°.

Pressure29.97 inHg
Wind8.7 mph SE
Humidity74%
Visibility6.2 mi
Dew point66°
Fri, 1472° / 62°0.27Rain
72 °Rain

Boundary City, Friday, 14 August

Rain. High 72°, low 62°.

Pressure30.09 inHg
Wind11 mph NE
Humidity79%
Visibility
Dew point65°
Sat, 1572° / 56°0Overcast
72 °Overcast

Boundary City, Saturday, 15 August

Overcast. High 72°, low 56°.

Pressure30.27 inHg
Wind10.2 mph E
Humidity66%
Visibility
Dew point58°
Sun, 1678° / 61°0.1Light rain
78 °Light rain

Boundary City, Sunday, 16 August

Light rain. High 78°, low 61°.

Pressure29.97 inHg
Wind11.6 mph S
Humidity86%
Visibility
Dew point68°
Mon, 1771° / 62°0.03Light rain
71 °Light rain

Boundary City, Monday, 17 August

Light rain. High 71°, low 62°.

Pressure30.06 inHg
Wind8.2 mph N
Humidity78%
Visibility
Dew point62°
Tue, 1876° / 58°0Partly cloudy
76 °Partly cloudy

Boundary City, Tuesday, 18 August

Partly cloudy. High 76°, low 58°.

Pressure29.94 inHg
Wind7.2 mph SE
Humidity69%
Visibility
Dew point62°
Wed, 1981° / 63°0.13Light rain
81 °Light rain

Boundary City, Wednesday, 19 August

Light rain. High 81°, low 63°.

Pressure29.74 inHg
Wind14 mph NW
Humidity75%
Visibility
Dew point70°
Thu, 2071° / 55°0Overcast
71 °Overcast

Boundary City, Thursday, 20 August

Overcast. High 71°, low 55°.

Pressure29.94 inHg
Wind9.9 mph NW
Humidity70%
Visibility
Dew point58°
Fri, 2176° / 56°0.03Light rain
76 °Light rain

Boundary City, Friday, 21 August

Light rain. High 76°, low 56°.

Pressure29.91 inHg
Wind10.3 mph S
Humidity73%
Visibility
Dew point63°
Sat, 2280° / 64°0.17Light rain
80 °Light rain

Boundary City, Saturday, 22 August

Light rain. High 80°, low 64°.

Pressure29.80 inHg
Wind14.8 mph SW
Humidity77%
Visibility
Dew point70°
Sun, 2372° / 57°0Clear
72 °Clear

Boundary City, Sunday, 23 August

Clear. High 72°, low 57°.

Pressure30.12 inHg
Wind12.3 mph N
Humidity65%
Visibility
Dew point57°
Mon, 2473° / 54°0Clear
73 °Clear

Boundary City, Monday, 24 August

Clear. High 73°, low 54°.

Pressure30.24 inHg
Wind4.5 mph N
Humidity61%
Visibility
Dew point56°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2580° / 63°0.05Climate normal
80 °Climate normal

Boundary City, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high80°
Average low63°
Average precipitation0.05 in
Chance of precipitation28%
Record high92° (2020)
Record low51° (1984)
Wed, 2681° / 64°0.09Climate normal
81 °Climate normal

Boundary City, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high81°
Average low64°
Average precipitation0.09 in
Chance of precipitation30%
Record high90° (2020)
Record low51° (2025)
Thu, 2781° / 64°0.1Climate normal
81 °Climate normal

Boundary City, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high81°
Average low64°
Average precipitation0.1 in
Chance of precipitation33%
Record high93° (2024)
Record low48° (2025)
Fri, 2881° / 64°0.17Climate normal
81 °Climate normal

Boundary City, Friday, 28 August

Climate normal for this date — 60-year average.

Average high81°
Average low64°
Average precipitation0.17 in
Chance of precipitation37%
Record high90° (1990)
Record low49° (1986)
Sat, 2980° / 63°0.11Climate normal
80 °Climate normal

Boundary City, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high80°
Average low63°
Average precipitation0.11 in
Chance of precipitation33%
Record high90° (2007)
Record low44° (1965)
Sun, 3079° / 63°0.12Climate normal
79 °Climate normal

Boundary City, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high79°
Average low63°
Average precipitation0.12 in
Chance of precipitation27%
Record high93° (2024)
Record low48° (1986)
Mon, 3179° / 62°0.07Climate normal
79 °Climate normal

Boundary City, Monday, 31 August

Climate normal for this date — 60-year average.

Average high79°
Average low62°
Average precipitation0.07 in
Chance of precipitation25%
Record high89° (2010)
Record low47° (2009)
Tue, 0179° / 62°0.11Climate normal
79 °Climate normal

Boundary City, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high79°
Average low62°
Average precipitation0.11 in
Chance of precipitation23%
Record high96° (2011)
Record low47° (1967)
Wed, 0279° / 63°0.08Climate normal
79 °Climate normal

Boundary City, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high79°
Average low63°
Average precipitation0.08 in
Chance of precipitation32%
Record high98° (2011)
Record low47° (1965)
Thu, 0379° / 62°0.12Climate normal
79 °Climate normal

Boundary City, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high79°
Average low62°
Average precipitation0.12 in
Chance of precipitation28%
Record high96° (2011)
Record low49° (1994)
Fri, 0479° / 61°0.09Climate normal
79 °Climate normal

Boundary City, Friday, 4 September

Climate normal for this date — 60-year average.

Average high79°
Average low61°
Average precipitation0.09 in
Chance of precipitation22%
Record high91° (1999)
Record low44° (1974)
Sat, 0578° / 61°0.04Climate normal
78 °Climate normal

Boundary City, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high78°
Average low61°
Average precipitation0.04 in
Chance of precipitation22%
Record high90° (2007)
Record low47° (1974)
Sun, 0678° / 61°0.04Climate normal
78 °Climate normal

Boundary City, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high78°
Average low61°
Average precipitation0.04 in
Chance of precipitation15%
Record high91° (1998)
Record low46° (1988)
Mon, 0778° / 61°0.09Climate normal
78 °Climate normal

Boundary City, Monday, 7 September

Climate normal for this date — 60-year average.

Average high78°
Average low61°
Average precipitation0.09 in
Chance of precipitation32%
Record high91° (2002)
Record low44° (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 Boundary City, 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 Boundary City, 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.