Monthly outlook for Barnum, MN: average high 63.4°, average low 46.4°. That is 5.5° above the climate normal for October. Precipitation is expected on 5 days (about 1.8 inches), against a normal of 5 days and 1.4 inches. The warmest day looks like 10 October (81.6°), the coolest 14 October (40.3°).
63.4°/46.4°
Average high / low
+5.5°
Above normal
5 / 5
Wet days / normal
1.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 October – 17 October
63.9°
54.9°
+5°
18 October – 27 October
62.6°
50.6°
+6.7°
28 October – 6 November
at normal
45.1°
—
October records over 66 years
84°4 October 2025All-time high
14.9°27 October 2020All-time low
Fri, 0965° / 45°0
65 °
Barnum, Friday, 9 October
Overcast. High 65°, low 45°.
Pressure30.09 inHg
Wind7 mph SE
Humidity44%
Visibility6.2 mi
Dew point39°
Sat, 1082° / 54°0
82 °
Barnum, Saturday, 10 October
Clear. High 82°, low 54°.
Pressure29.71 inHg
Wind13.9 mph S
Humidity51%
Visibility6.2 mi
Dew point56°
Sun, 1181° / 65°0
81 °
Barnum, Sunday, 11 October
Mostly clear. High 81°, low 65°.
Pressure29.77 inHg
Wind10.4 mph S
Humidity50%
Visibility6.2 mi
Dew point57°
Mon, 1269° / 52°0.04
69 °
Barnum, Monday, 12 October
Light rain. High 69°, low 52°.
Pressure29.74 inHg
Wind9 mph E
Humidity71%
Visibility—
Dew point53°
Tue, 1353° / 43°0.07
53 °
Barnum, Tuesday, 13 October
Light rain. High 53°, low 43°.
Pressure30.09 inHg
Wind9.1 mph N
Humidity59%
Visibility—
Dew point38°
Wed, 1449° / 40°0.98
49 °
Barnum, Wednesday, 14 October
Heavy rain. High 49°, low 40°.
Pressure29.91 inHg
Wind16.1 mph SE
Humidity67%
Visibility—
Dew point38°
Thu, 1577° / 55°0.3
77 °
Barnum, Thursday, 15 October
Light rain. High 77°, low 55°.
Pressure29.35 inHg
Wind20.5 mph SW
Humidity71%
Visibility—
Dew point64°
Fri, 1651° / 43°0
51 °
Barnum, Friday, 16 October
Light rain. High 51°, low 43°.
Pressure30.12 inHg
Wind15 mph W
Humidity72%
Visibility—
Dew point39°
Sat, 1746° / 41°0
46 °
Barnum, Saturday, 17 October
Overcast. High 46°, low 41°.
Pressure30.50 inHg
Wind7 mph SE
Humidity65%
Visibility—
Dew point33°
Sun, 1861° / 43°0.03
61 °
Barnum, Sunday, 18 October
Light rain. High 61°, low 43°.
Pressure30.12 inHg
Wind13.6 mph SW
Humidity54%
Visibility—
Dew point40°
Mon, 1961° / 41°0
61 °
Barnum, Monday, 19 October
Clear. High 61°, low 41°.
Pressure30.15 inHg
Wind5.2 mph E
Humidity40%
Visibility—
Dew point33°
Tue, 2063° / 43°0
63 °
Barnum, Tuesday, 20 October
Clear. High 63°, low 43°.
Pressure30.06 inHg
Wind7.7 mph W
Humidity46%
Visibility—
Dew point38°
Wed, 2166° / 43°0
66 °
Barnum, Wednesday, 21 October
Overcast. High 66°, low 43°.
Pressure29.83 inHg
Wind12.4 mph S
Humidity54%
Visibility—
Dew point43°
Thu, 2260° / 49°0.35
60 °
Barnum, Thursday, 22 October
Rain. High 60°, low 49°.
Pressure29.32 inHg
Wind19.1 mph S
Humidity85%
Visibility—
Dew point52°
Fri, 2365° / 44°0
65 °
Barnum, Friday, 23 October
Overcast. High 65°, low 44°.
Pressure29.56 inHg
Wind10.5 mph SW
Humidity39%
Visibility—
Dew point34°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2450° / 37°0.06
50 °
Barnum, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.06 in
Chance of precipitation27%
Record high71° (1963)
Record low19° (2020)
Sun, 2550° / 37°0.05
50 °
Barnum, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.05 in
Chance of precipitation30%
Record high74° (1989)
Record low17° (2020)
Mon, 2649° / 37°0.09
49 °
Barnum, Monday, 26 October
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.09 in
Chance of precipitation22%
Record high74° (1989)
Record low16° (2020)
Tue, 2749° / 36°0.11
49 °
Barnum, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.11 in
Chance of precipitation27%
Record high67° (1983)
Record low15° (2020)
Wed, 2847° / 35°0.07
47 °
Barnum, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.07 in
Chance of precipitation25%
Record high67° (2024)
Record low23° (1969)
Thu, 2947° / 35°0.07
47 °
Barnum, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.07 in
Chance of precipitation27%
Record high63° (2024)
Record low19° (1988)
Fri, 3047° / 35°0.07
47 °
Barnum, Friday, 30 October
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.07 in
Chance of precipitation33%
Record high62° (1971)
Record low19° (1988)
Sat, 3146° / 34°0.09
46 °
Barnum, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.09 in
Chance of precipitation32%
Record high64° (2000)
Record low17° (1996)
Sun, 0145° / 33°0.09
45 °
Barnum, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.09 in
Chance of precipitation28%
Record high66° (1990)
Record low17° (1984)
Mon, 0245° / 33°0.07
45 °
Barnum, Monday, 2 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.07 in
Chance of precipitation25%
Record high69° (2022)
Record low11° (1984)
Tue, 0344° / 32°0.04
44 °
Barnum, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high44°
Average low32°
Average precipitation0.04 in
Chance of precipitation17%
Record high66° (2008)
Record low11° (1991)
Wed, 0443° / 31°0.04
43 °
Barnum, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high43°
Average low31°
Average precipitation0.04 in
Chance of precipitation25%
Record high65° (2020)
Record low-3° (1991)
Thu, 0543° / 31°0.03
43 °
Barnum, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high43°
Average low31°
Average precipitation0.03 in
Chance of precipitation20%
Record high66° (2016)
Record low5° (1991)
Fri, 0643° / 31°0.07
43 °
Barnum, Friday, 6 November
Climate normal for this date — 60-year average.
Average high43°
Average low31°
Average precipitation0.07 in
Chance of precipitation20%
Record high67° (2020)
Record low1° (1991)
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 Barnum, 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 Barnum, 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.