Monthly outlook for Glenville, MN: average high 79.7°, average low 61.5°. That is 1.3° above the climate normal for August. Precipitation is expected on 6 days (about 1.5 inches), against a normal of 5 days and 2.3 inches. The warmest day looks like 24 August (89.2°), the coolest 20 August (57.5°).
79.7°/61.5°
Average high / low
+1.3°
Above normal
6 / 5
Wet days / normal
1.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
78.3°
77.4°
+0.5°
19 August – 28 August
82.2°
77.4°
+2.7°
29 August – 7 September
at normal
75.8°
—
August records over 66 years
100°23 August 2023All-time high
42.1°28 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Myrtle (6 mi).
Mon, 1082° / 64°0.07
82 °
Glenville, Monday, 10 August
Rain. High 82°, low 64°.
Pressure29.88 inHg
Wind9.9 mph SE
Humidity72%
Visibility6.2 mi
Dew point67°
Tue, 1182° / 67°0.19
82 °
Glenville, Tuesday, 11 August
Rain. High 82°, low 67°.
Pressure29.80 inHg
Wind6.6 mph E
Humidity77%
Visibility6.2 mi
Dew point71°
Wed, 1280° / 67°0
80 °
Glenville, Wednesday, 12 August
Mostly clear. High 80°, low 67°.
Pressure29.88 inHg
Wind9.3 mph E
Humidity59%
Visibility6.2 mi
Dew point64°
Thu, 1372° / 64°0.07
72 °
Glenville, Thursday, 13 August
Light rain. High 72°, low 64°.
Pressure29.97 inHg
Wind9.1 mph E
Humidity78%
Visibility—
Dew point62°
Fri, 1474° / 59°0
74 °
Glenville, Friday, 14 August
Overcast. High 74°, low 59°.
Pressure30.12 inHg
Wind14.4 mph E
Humidity65%
Visibility—
Dew point59°
Sat, 1567° / 62°0.31
67 °
Glenville, Saturday, 15 August
Rain. High 67°, low 62°.
Pressure30.09 inHg
Wind14.1 mph SE
Humidity90%
Visibility—
Dew point62°
Sun, 1676° / 61°0
76 °
Glenville, Sunday, 16 August
Overcast. High 76°, low 61°.
Pressure30.12 inHg
Wind13.3 mph NW
Humidity68%
Visibility—
Dew point59°
Mon, 1782° / 58°0
82 °
Glenville, Monday, 17 August
Overcast. High 82°, low 58°.
Pressure30.06 inHg
Wind10.5 mph S
Humidity47%
Visibility—
Dew point55°
Tue, 1886° / 61°0.45
86 °
Glenville, Tuesday, 18 August
Rain. High 86°, low 61°.
Pressure29.77 inHg
Wind10.5 mph S
Humidity60%
Visibility—
Dew point63°
Wed, 1976° / 58°0
76 °
Glenville, Wednesday, 19 August
Mostly clear. High 76°, low 58°.
Pressure29.94 inHg
Wind12 mph N
Humidity62%
Visibility—
Dew point58°
Thu, 2081° / 58°0
81 °
Glenville, Thursday, 20 August
Mostly clear. High 81°, low 58°.
Pressure29.94 inHg
Wind10 mph S
Humidity46%
Visibility—
Dew point53°
Fri, 2185° / 61°0.02
85 °
Glenville, Friday, 21 August
Light rain. High 85°, low 61°.
Pressure29.68 inHg
Wind13.4 mph S
Humidity53%
Visibility—
Dew point61°
Sat, 2280° / 61°0
80 °
Glenville, Saturday, 22 August
Partly cloudy. High 80°, low 61°.
Pressure29.91 inHg
Wind17.4 mph NW
Humidity43%
Visibility—
Dew point51°
Sun, 2382° / 58°0
82 °
Glenville, Sunday, 23 August
Clear. High 82°, low 58°.
Pressure30.15 inHg
Wind7.7 mph SE
Humidity44%
Visibility—
Dew point52°
Mon, 2489° / 60°0
89 °
Glenville, Monday, 24 August
Clear. High 89°, low 60°.
Pressure30.09 inHg
Wind14.7 mph S
Humidity35%
Visibility—
Dew point53°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2578° / 62°0.13
78 °
Glenville, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.13 in
Chance of precipitation40%
Record high92° (2020)
Record low50° (2025)
Wed, 2678° / 63°0.11
78 °
Glenville, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high78°
Average low63°
Average precipitation0.11 in
Chance of precipitation33%
Record high93° (2024)
Record low48° (1964)
Thu, 2778° / 62°0.15
78 °
Glenville, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.15 in
Chance of precipitation30%
Record high91° (2013)
Record low48° (1971)
Fri, 2877° / 62°0.17
77 °
Glenville, Friday, 28 August
Climate normal for this date — 60-year average.
Average high77°
Average low62°
Average precipitation0.17 in
Chance of precipitation37%
Record high91° (1984)
Record low42° (1986)
Sat, 2978° / 61°0.1
78 °
Glenville, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.1 in
Chance of precipitation28%
Record high93° (2012)
Record low47° (1988)
Sun, 3076° / 61°0.11
76 °
Glenville, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high76°
Average low61°
Average precipitation0.11 in
Chance of precipitation32%
Record high96° (2012)
Record low48° (2009)
Mon, 3176° / 60°0.11
76 °
Glenville, Monday, 31 August
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.11 in
Chance of precipitation28%
Record high87° (1960)
Record low45° (1967)
Tue, 0176° / 59°0.07
76 °
Glenville, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high76°
Average low59°
Average precipitation0.07 in
Chance of precipitation25%
Record high91° (2011)
Record low44° (1974)
Wed, 0276° / 60°0.11
76 °
Glenville, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.11 in
Chance of precipitation35%
Record high93° (2023)
Record low46° (1968)
Thu, 0375° / 60°0.1
75 °
Glenville, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high75°
Average low60°
Average precipitation0.1 in
Chance of precipitation32%
Record high94° (2023)
Record low39° (1974)
Fri, 0476° / 59°0.1
76 °
Glenville, Friday, 4 September
Climate normal for this date — 60-year average.
Average high76°
Average low59°
Average precipitation0.1 in
Chance of precipitation22%
Record high94° (2023)
Record low43° (1974)
Sat, 0576° / 59°0.09
76 °
Glenville, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high76°
Average low59°
Average precipitation0.09 in
Chance of precipitation28%
Record high89° (2023)
Record low40° (1962)
Sun, 0675° / 59°0.09
75 °
Glenville, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high75°
Average low59°
Average precipitation0.09 in
Chance of precipitation23%
Record high88° (1960)
Record low44° (1962)
Mon, 0774° / 58°0.08
74 °
Glenville, Monday, 7 September
Climate normal for this date — 60-year average.
Average high74°
Average low58°
Average precipitation0.08 in
Chance of precipitation27%
Record high90° (1978)
Record low44° (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 Glenville, 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 Glenville, 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.