Monthly outlook for Dayton, MN: average high 84.2°, average low 60.5°. That is 3.1° above the climate normal for August. Precipitation is expected on 7 days (about 1.4 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 16 August (93.9°), the coolest 23 August (46.9°).
84.2°/60.5°
Average high / low
+3.1°
Above normal
7 / 5
Wet days / normal
1.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
86.2°
78.9°
+4°
18 August – 27 August
80.9°
78.1°
+1.5°
28 August – 6 September
at normal
76.4°
—
August records over 66 years
98.8°23 August 2023All-time high
45.1°21 August 2004All-time low
Climate normals and records are computed from the nearest reference point — Hilltop (14 mi).
Sun, 0985° / 65°0.23
85 °
Dayton, Sunday, 9 August
Rain. High 85°, low 65°.
Pressure29.83 inHg
Wind3.7 mph NW
Humidity65%
Visibility6.2 mi
Dew point67°
Mon, 1093° / 64°0
93 °
Dayton, Monday, 10 August
Light rain. High 93°, low 64°.
Pressure29.88 inHg
Wind8.8 mph E
Humidity34%
Visibility6.2 mi
Dew point55°
Tue, 1188° / 64°0.7
88 °
Dayton, Tuesday, 11 August
Heavy rain. High 88°, low 64°.
Pressure29.83 inHg
Wind6.7 mph N
Humidity56%
Visibility6.2 mi
Dew point63°
Wed, 1281° / 63°0
81 °
Dayton, Wednesday, 12 August
Mostly clear. High 81°, low 63°.
Pressure29.88 inHg
Wind8.3 mph N
Humidity32%
Visibility6.2 mi
Dew point48°
Thu, 1379° / 57°0
79 °
Dayton, Thursday, 13 August
Clear. High 79°, low 57°.
Pressure30.03 inHg
Wind10.7 mph N
Humidity30%
Visibility—
Dew point39°
Fri, 1481° / 54°0
81 °
Dayton, Friday, 14 August
Clear. High 81°, low 54°.
Pressure30.21 inHg
Wind7.5 mph NE
Humidity29%
Visibility—
Dew point40°
Sat, 1588° / 62°0
88 °
Dayton, Saturday, 15 August
Overcast. High 88°, low 62°.
Pressure30.12 inHg
Wind16.8 mph S
Humidity32%
Visibility—
Dew point49°
Sun, 1694° / 66°0.14
94 °
Dayton, Sunday, 16 August
Light rain. High 94°, low 66°.
Pressure29.97 inHg
Wind15.4 mph S
Humidity45%
Visibility—
Dew point63°
Mon, 1789° / 63°0.04
89 °
Dayton, Monday, 17 August
Light rain. High 89°, low 63°.
Pressure30.00 inHg
Wind8.7 mph NE
Humidity36%
Visibility—
Dew point53°
Tue, 1893° / 66°0.01
93 °
Dayton, Tuesday, 18 August
Light rain. High 93°, low 66°.
Pressure29.97 inHg
Wind11.5 mph SE
Humidity36%
Visibility—
Dew point55°
Wed, 1972° / 65°0.07
72 °
Dayton, Wednesday, 19 August
Light rain. High 72°, low 65°.
Pressure29.97 inHg
Wind8.9 mph NW
Humidity87%
Visibility—
Dew point64°
Thu, 2087° / 62°0
87 °
Dayton, Thursday, 20 August
Clear. High 87°, low 62°.
Pressure29.94 inHg
Wind8 mph NE
Humidity32%
Visibility—
Dew point50°
Fri, 2187° / 60°0.14
87 °
Dayton, Friday, 21 August
Rain. High 87°, low 60°.
Pressure29.94 inHg
Wind15.6 mph NE
Humidity39%
Visibility—
Dew point53°
Sat, 2272° / 53°0.1
72 °
Dayton, Saturday, 22 August
Light rain. High 72°, low 53°.
Pressure30.15 inHg
Wind16 mph NE
Humidity33%
Visibility—
Dew point36°
Sun, 2374° / 47°0
74 °
Dayton, Sunday, 23 August
Overcast. High 74°, low 47°.
Pressure30.24 inHg
Wind7.1 mph E
Humidity30%
Visibility—
Dew point34°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2478° / 63°0.14
78 °
Dayton, Monday, 24 August
Climate normal for this date — 60-year average.
Average high78°
Average low63°
Average precipitation0.14 in
Chance of precipitation30%
Record high93° (2003)
Record low50° (1987)
Tue, 2579° / 63°0.14
79 °
Dayton, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.14 in
Chance of precipitation32%
Record high93° (2013)
Record low51° (2025)
Wed, 2678° / 63°0.22
78 °
Dayton, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high78°
Average low63°
Average precipitation0.22 in
Chance of precipitation42%
Record high93° (2013)
Record low50° (1971)
Thu, 2778° / 63°0.14
78 °
Dayton, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high78°
Average low63°
Average precipitation0.14 in
Chance of precipitation32%
Record high92° (2013)
Record low49° (1971)
Fri, 2877° / 62°0.09
77 °
Dayton, Friday, 28 August
Climate normal for this date — 60-year average.
Average high77°
Average low62°
Average precipitation0.09 in
Chance of precipitation35%
Record high91° (1984)
Record low47° (1965)
Sat, 2978° / 62°0.09
78 °
Dayton, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.09 in
Chance of precipitation27%
Record high93° (2013)
Record low51° (1976)
Sun, 3077° / 61°0.1
77 °
Dayton, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.1 in
Chance of precipitation32%
Record high95° (2012)
Record low51° (2009)
Mon, 3177° / 61°0.11
77 °
Dayton, Monday, 31 August
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.11 in
Chance of precipitation30%
Record high88° (1960)
Record low49° (1967)
Tue, 0176° / 61°0.09
76 °
Dayton, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high76°
Average low61°
Average precipitation0.09 in
Chance of precipitation28%
Record high93° (2011)
Record low46° (1974)
Wed, 0277° / 61°0.09
77 °
Dayton, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.09 in
Chance of precipitation33%
Record high94° (2023)
Record low48° (1974)
Thu, 0376° / 61°0.13
76 °
Dayton, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high76°
Average low61°
Average precipitation0.13 in
Chance of precipitation38%
Record high98° (2023)
Record low43° (1974)
Fri, 0476° / 60°0.14
76 °
Dayton, Friday, 4 September
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.14 in
Chance of precipitation28%
Record high97° (2023)
Record low46° (2025)
Sat, 0576° / 60°0.09
76 °
Dayton, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.09 in
Chance of precipitation27%
Record high91° (2023)
Record low44° (1962)
Sun, 0675° / 60°0.11
75 °
Dayton, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high75°
Average low60°
Average precipitation0.11 in
Chance of precipitation30%
Record high90° (1960)
Record low46° (2025)
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, MN 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, MN 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.