As of 19:16 EDT

Weather in Dayton, IN

84°Current weather

Dayton, Saturday, 8 August, 19:16

Mostly clear. Feels like 90°. High 86°, low 71°.

Pressure29.97 inHg
Wind7.2 mph NW
Humidity67%
Visibility6.2 mi
Dew point73°

Monthly outlook for Dayton, IN: average high 79.5°, average low 63.6°. That is 1.1° below the climate normal for August. Precipitation is expected on 8 days (about 1.4 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 9 August (91.7°), the coolest 23 August (47.5°).

79.5°/63.6°
Average high / low
−1.1°
Below normal
8 / 5
Wet days / normal
1.4 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 August – 17 August80.6°81.6°-0.6°
18 August – 27 August77.8°81.8°-2.2°
28 August – 6 Septemberat normal80.5°

August records over 66 years

100.8°17 August 1988All-time high
44.2°29 August 1986All-time low

Climate normals and records are computed from the nearest reference point — Lafayette (5 mi).

Sun, 0992° / 69°0.26Heavy rain
92 °Heavy rain

Dayton, Sunday, 9 August

Heavy rain. High 92°, low 69°.

Pressure30.03 inHg
Wind12 mph SW
Humidity80%
Visibility6.2 mi
Dew point75°
Mon, 1088° / 74°0.02Light rain
88 °Light rain

Dayton, Monday, 10 August

Light rain. High 88°, low 74°.

Pressure29.97 inHg
Wind8 mph W
Humidity84%
Visibility6.2 mi
Dew point74°
Tue, 1189° / 74°0.13Rain
89 °Rain

Dayton, Tuesday, 11 August

Rain. High 89°, low 74°.

Pressure29.88 inHg
Wind13.2 mph SW
Humidity76%
Visibility6.2 mi
Dew point75°
Wed, 1283° / 67°0.12Light rain
83 °Light rain

Dayton, Wednesday, 12 August

Light rain. High 83°, low 67°.

Pressure29.83 inHg
Wind4.3 mph N
Humidity82%
Visibility6.2 mi
Dew point74°
Thu, 1375° / 63°0.26Rain
75 °Rain

Dayton, Thursday, 13 August

Rain. High 75°, low 63°.

Pressure29.88 inHg
Wind11.2 mph NE
Humidity89%
Visibility
Dew point70°
Fri, 1471° / 53°0Clear
71 °Clear

Dayton, Friday, 14 August

Clear. High 71°, low 53°.

Pressure30.18 inHg
Wind10.9 mph NE
Humidity62%
Visibility
Dew point55°
Sat, 1574° / 52°0Overcast
74 °Overcast

Dayton, Saturday, 15 August

Overcast. High 74°, low 52°.

Pressure30.33 inHg
Wind7.2 mph SE
Humidity62%
Visibility
Dew point56°
Sun, 1676° / 57°0Mostly clear
76 °Mostly clear

Dayton, Sunday, 16 August

Mostly clear. High 76°, low 57°.

Pressure30.24 inHg
Wind8.3 mph S
Humidity66%
Visibility
Dew point60°
Mon, 1774° / 64°0.19Rain
74 °Rain

Dayton, Monday, 17 August

Rain. High 74°, low 64°.

Pressure30.03 inHg
Wind10 mph S
Humidity88%
Visibility
Dew point66°
Tue, 1881° / 69°0.05Light rain
81 °Light rain

Dayton, Tuesday, 18 August

Light rain. High 81°, low 69°.

Pressure29.97 inHg
Wind10.1 mph NE
Humidity76%
Visibility
Dew point70°
Wed, 1983° / 66°0Overcast
83 °Overcast

Dayton, Wednesday, 19 August

Overcast. High 83°, low 66°.

Pressure29.94 inHg
Wind8.2 mph S
Humidity70%
Visibility
Dew point68°
Thu, 2078° / 67°0.31Rain
78 °Rain

Dayton, Thursday, 20 August

Rain. High 78°, low 67°.

Pressure29.85 inHg
Wind7.6 mph N
Humidity82%
Visibility
Dew point71°
Fri, 2179° / 63°0Overcast
79 °Overcast

Dayton, Friday, 21 August

Overcast. High 79°, low 63°.

Pressure29.94 inHg
Wind8.5 mph NE
Humidity68%
Visibility
Dew point64°
Sat, 2279° / 60°0.05Light rain
79 °Light rain

Dayton, Saturday, 22 August

Light rain. High 79°, low 60°.

Pressure29.91 inHg
Wind14.6 mph N
Humidity66%
Visibility
Dew point65°
Sun, 2367° / 48°0Clear
67 °Clear

Dayton, Sunday, 23 August

Clear. High 67°, low 48°.

Pressure30.21 inHg
Wind12.2 mph NE
Humidity54%
Visibility
Dew point46°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2482° / 65°0.06Climate normal
82 °Climate normal

Dayton, Monday, 24 August

Climate normal for this date — 60-year average.

Average high82°
Average low65°
Average precipitation0.06 in
Chance of precipitation25%
Record high95° (2011)
Record low52° (1987)
Tue, 2582° / 64°0.09Climate normal
82 °Climate normal

Dayton, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high82°
Average low64°
Average precipitation0.09 in
Chance of precipitation27%
Record high94° (2020)
Record low53° (2017)
Wed, 2682° / 65°0.11Climate normal
82 °Climate normal

Dayton, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high82°
Average low65°
Average precipitation0.11 in
Chance of precipitation32%
Record high92° (2020)
Record low53° (1964)
Thu, 2782° / 66°0.13Climate normal
82 °Climate normal

Dayton, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high82°
Average low66°
Average precipitation0.13 in
Chance of precipitation28%
Record high94° (2024)
Record low51° (1968)
Fri, 2882° / 66°0.15Climate normal
82 °Climate normal

Dayton, Friday, 28 August

Climate normal for this date — 60-year average.

Average high82°
Average low66°
Average precipitation0.15 in
Chance of precipitation37%
Record high92° (1990)
Record low50° (1986)
Sat, 2982° / 64°0.11Climate normal
82 °Climate normal

Dayton, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high82°
Average low64°
Average precipitation0.11 in
Chance of precipitation32%
Record high91° (1991)
Record low44° (1986)
Sun, 3080° / 64°0.06Climate normal
80 °Climate normal

Dayton, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high80°
Average low64°
Average precipitation0.06 in
Chance of precipitation32%
Record high93° (1995)
Record low50° (1986)
Mon, 3181° / 63°0.07Climate normal
81 °Climate normal

Dayton, Monday, 31 August

Climate normal for this date — 60-year average.

Average high81°
Average low63°
Average precipitation0.07 in
Chance of precipitation28%
Record high93° (2011)
Record low49° (2009)
Tue, 0181° / 63°0.09Climate normal
81 °Climate normal

Dayton, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high81°
Average low63°
Average precipitation0.09 in
Chance of precipitation18%
Record high99° (2011)
Record low48° (1967)
Wed, 0281° / 64°0.08Climate normal
81 °Climate normal

Dayton, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high81°
Average low64°
Average precipitation0.08 in
Chance of precipitation30%
Record high99° (2011)
Record low48° (1965)
Thu, 0381° / 64°0.08Climate normal
81 °Climate normal

Dayton, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high81°
Average low64°
Average precipitation0.08 in
Chance of precipitation30%
Record high96° (2011)
Record low48° (1974)
Fri, 0480° / 62°0.08Climate normal
80 °Climate normal

Dayton, Friday, 4 September

Climate normal for this date — 60-year average.

Average high80°
Average low62°
Average precipitation0.08 in
Chance of precipitation22%
Record high94° (1999)
Record low47° (1974)
Sat, 0580° / 62°0.03Climate normal
80 °Climate normal

Dayton, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high80°
Average low62°
Average precipitation0.03 in
Chance of precipitation17%
Record high94° (1999)
Record low49° (1974)
Sun, 0680° / 62°0.06Climate normal
80 °Climate normal

Dayton, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high80°
Average low62°
Average precipitation0.06 in
Chance of precipitation30%
Record high92° (1990)
Record low47° (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 Dayton, 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 Dayton, 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.