Monthly outlook for Big Lake, MN: average high 58.1°, average low 41.6°. That is 4.1° above the climate normal for October. Precipitation is expected on 1 day (about 0.8 inches), against a normal of 4 days and 1.1 inches. The warmest day looks like 20 October (71°), the coolest 28 October (26.9°).
58.1°/41.6°
Average high / low
+4.1°
Above normal
1 / 4
Wet days / normal
0.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
19 October – 28 October
60°
52.3°
+4.3°
29 October – 7 November
55°
46.9°
+4.5°
8 November – 17 November
at normal
40.6°
—
October records over 66 years
84.9°3 October 2025All-time high
15.1°23 October 2002All-time low
Climate normals and records are computed from the nearest reference point — Zimmerman (10 mi).
Tue, 2071° / 44°0
71 °
Big Lake, Tuesday, 20 October
Clear. High 71°, low 44°.
Pressure30.30 inHg
Wind7.7 mph S
Humidity61%
Visibility6.2 mi
Dew point47°
Wed, 2168° / 46°0
68 °
Big Lake, Wednesday, 21 October
Clear. High 68°, low 46°.
Pressure30.21 inHg
Wind3.3 mph NW
Humidity62%
Visibility6.2 mi
Dew point49°
Thu, 2270° / 46°0
70 °
Big Lake, Thursday, 22 October
Clear. High 70°, low 46°.
Pressure30.27 inHg
Wind6.3 mph SE
Humidity66%
Visibility6.2 mi
Dew point52°
Fri, 2370° / 54°0.03
70 °
Big Lake, Friday, 23 October
Light rain. High 70°, low 54°.
Pressure30.12 inHg
Wind14.7 mph S
Humidity55%
Visibility—
Dew point50°
Sat, 2470° / 58°0.78
70 °
Big Lake, Saturday, 24 October
Rain. High 70°, low 58°.
Pressure30.12 inHg
Wind14.6 mph S
Humidity52%
Visibility—
Dew point49°
Sun, 2557° / 45°0
57 °
Big Lake, Sunday, 25 October
Mostly clear. High 57°, low 45°.
Pressure30.09 inHg
Wind20.6 mph W
Humidity37%
Visibility—
Dew point29°
Mon, 2648° / 38°0
48 °
Big Lake, Monday, 26 October
Partly cloudy. High 48°, low 38°.
Pressure30.09 inHg
Wind15.1 mph N
Humidity47%
Visibility—
Dew point28°
Tue, 2741° / 32°0
41 °
Big Lake, Tuesday, 27 October
Overcast. High 41°, low 32°.
Pressure30.39 inHg
Wind13 mph NW
Humidity45%
Visibility—
Dew point19°
Wed, 2839° / 27°0
39 °
Big Lake, Wednesday, 28 October
Clear. High 39°, low 27°.
Pressure30.53 inHg
Wind9.7 mph NW
Humidity35%
Visibility—
Dew point10°
Thu, 2945° / 28°0
45 °
Big Lake, Thursday, 29 October
Mostly clear. High 45°, low 28°.
Pressure30.39 inHg
Wind6 mph SW
Humidity31%
Visibility—
Dew point13°
Fri, 3049° / 29°0
49 °
Big Lake, Friday, 30 October
Mostly clear. High 49°, low 29°.
Pressure30.33 inHg
Wind18.6 mph S
Humidity32%
Visibility—
Dew point16°
Sat, 3151° / 41°0
51 °
Big Lake, Saturday, 31 October
Overcast. High 51°, low 41°.
Pressure30.06 inHg
Wind19 mph S
Humidity40%
Visibility—
Dew point26°
Sun, 0162° / 42°0.01
62 °
Big Lake, Sunday, 1 November
Light rain. High 62°, low 42°.
Pressure30.06 inHg
Wind11 mph S
Humidity54%
Visibility—
Dew point40°
Mon, 0270° / 53°0
70 °
Big Lake, Monday, 2 November
Light rain. High 70°, low 53°.
Pressure29.68 inHg
Wind21.8 mph SW
Humidity70%
Visibility—
Dew point51°
Tue, 0353° / 41°0
53 °
Big Lake, Tuesday, 3 November
Overcast. High 53°, low 41°.
Pressure30.39 inHg
Wind12.9 mph W
Humidity62%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0445° / 33°0.04
45 °
Big Lake, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.04 in
Chance of precipitation22%
Record high67° (2020)
Record low-2° (1991)
Thu, 0546° / 32°0.05
46 °
Big Lake, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.05 in
Chance of precipitation25%
Record high65° (2016)
Record low8° (1991)
Fri, 0646° / 33°0.06
46 °
Big Lake, Friday, 6 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.06 in
Chance of precipitation18%
Record high70° (2020)
Record low4° (1991)
Sat, 0745° / 32°0.02
45 °
Big Lake, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.02 in
Chance of precipitation12%
Record high68° (2020)
Record low-7° (1991)
Sun, 0844° / 31°0.04
44 °
Big Lake, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.04 in
Chance of precipitation20%
Record high69° (2020)
Record low1° (1991)
Mon, 0943° / 31°0.1
43 °
Big Lake, Monday, 9 November
Climate normal for this date — 60-year average.
Average high43°
Average low31°
Average precipitation0.1 in
Chance of precipitation32%
Record high67° (1999)
Record low11° (2003)
Tue, 1041° / 30°0.13
41 °
Big Lake, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high41°
Average low30°
Average precipitation0.13 in
Chance of precipitation37%
Record high62° (2010)
Record low7° (2018)
Wed, 1139° / 28°0.05
39 °
Big Lake, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high39°
Average low28°
Average precipitation0.05 in
Chance of precipitation23%
Record high57° (1964)
Record low8° (2019)
Thu, 1238° / 27°0.06
38 °
Big Lake, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high38°
Average low27°
Average precipitation0.06 in
Chance of precipitation25%
Record high59° (2011)
Record low-5° (1966)
Fri, 1340° / 27°0.07
40 °
Big Lake, Friday, 13 November
Climate normal for this date — 60-year average.
Average high40°
Average low27°
Average precipitation0.07 in
Chance of precipitation27%
Record high66° (1999)
Record low1° (1982)
Sat, 1440° / 28°0.02
40 °
Big Lake, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high40°
Average low28°
Average precipitation0.02 in
Chance of precipitation17%
Record high65° (2025)
Record low5° (2014)
Sun, 1540° / 28°0.04
40 °
Big Lake, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high40°
Average low28°
Average precipitation0.04 in
Chance of precipitation17%
Record high62° (2001)
Record low1° (2014)
Mon, 1640° / 27°0.09
40 °
Big Lake, Monday, 16 November
Climate normal for this date — 60-year average.
Average high40°
Average low27°
Average precipitation0.09 in
Chance of precipitation17%
Record high63° (2023)
Record low5° (1997)
Tue, 1739° / 27°0.07
39 °
Big Lake, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high39°
Average low27°
Average precipitation0.07 in
Chance of precipitation25%
Record high66° (2001)
Record low7° (2014)
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 Big Lake, 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 Big Lake, 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.