Monthly outlook for Garrison, ND: average high 56.4°, average low 38.8°. That is 1.1° above the climate normal for October. Precipitation is expected on 2 days (about 1.1 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 9 October (71.5°), the coolest 17 October (30°).
56.4°/38.8°
Average high / low
+1.1°
Above normal
2 / 3
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
7 October – 16 October
57.4°
55.4°
+1.1°
17 October – 26 October
54.6°
51.9°
+1.5°
27 October – 5 November
at normal
45.2°
—
October records over 66 years
90°4 October 1963All-time high
3°31 October 1991All-time low
Thu, 0867° / 41°0
67 °
Garrison, Thursday, 8 October
Overcast. High 67°, low 41°.
Pressure30.06 inHg
Wind2.7 mph SE
Humidity43%
Visibility6.2 mi
Dew point36°
Fri, 0971° / 40°0
71 °
Garrison, Friday, 9 October
Overcast. High 71°, low 40°.
Pressure29.74 inHg
Wind11.1 mph SE
Humidity62%
Visibility6.2 mi
Dew point47°
Sat, 1069° / 50°0
69 °
Garrison, Saturday, 10 October
Overcast. High 69°, low 50°.
Pressure29.41 inHg
Wind11.7 mph N
Humidity55%
Visibility6.2 mi
Dew point52°
Sun, 1147° / 41°0.79
47 °
Garrison, Sunday, 11 October
Rain. High 47°, low 41°.
Pressure30.00 inHg
Wind10.8 mph NW
Humidity89%
Visibility2.0 mi
Dew point38°
Mon, 1242° / 35°0.35
42 °
Garrison, Monday, 12 October
Snow. High 42°, low 35°.
Pressure30.18 inHg
Wind9.3 mph N
Humidity93%
Visibility—
Dew point35°
Tue, 1355° / 34°0
55 °
Garrison, Tuesday, 13 October
Clear. High 55°, low 34°.
Pressure30.15 inHg
Wind13 mph SW
Humidity54%
Visibility—
Dew point31°
Wed, 1464° / 44°0
64 °
Garrison, Wednesday, 14 October
Overcast. High 64°, low 44°.
Pressure29.53 inHg
Wind7 mph SE
Humidity43%
Visibility—
Dew point37°
Thu, 1551° / 39°0
51 °
Garrison, Thursday, 15 October
Light rain. High 51°, low 39°.
Pressure29.97 inHg
Wind19.8 mph NW
Humidity69%
Visibility—
Dew point34°
Fri, 1641° / 35°0
41 °
Garrison, Friday, 16 October
Overcast. High 41°, low 35°.
Pressure30.36 inHg
Wind17 mph N
Humidity66%
Visibility—
Dew point28°
Sat, 1746° / 30°0
46 °
Garrison, Saturday, 17 October
Clear. High 46°, low 30°.
Pressure30.24 inHg
Wind6.4 mph S
Humidity47%
Visibility—
Dew point22°
Sun, 1857° / 37°0
57 °
Garrison, Sunday, 18 October
Partly cloudy. High 57°, low 37°.
Pressure29.97 inHg
Wind7.9 mph W
Humidity30%
Visibility—
Dew point21°
Mon, 1952° / 40°0
52 °
Garrison, Monday, 19 October
Clear. High 52°, low 40°.
Pressure30.18 inHg
Wind18.4 mph NW
Humidity41%
Visibility—
Dew point27°
Tue, 2053° / 33°0
53 °
Garrison, Tuesday, 20 October
Clear. High 53°, low 33°.
Pressure30.33 inHg
Wind14 mph S
Humidity48%
Visibility—
Dew point26°
Wed, 2171° / 44°0
71 °
Garrison, Wednesday, 21 October
Overcast. High 71°, low 44°.
Pressure29.50 inHg
Wind23.1 mph W
Humidity31%
Visibility—
Dew point30°
Thu, 2249° / 40°0
49 °
Garrison, Thursday, 22 October
Light rain. High 49°, low 40°.
Pressure29.44 inHg
Wind24.4 mph W
Humidity46%
Visibility—
Dew point28°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2350° / 36°0.05
50 °
Garrison, Friday, 23 October
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.05 in
Chance of precipitation22%
Record high74° (1963)
Record low17° (2020)
Sat, 2450° / 35°0.04
50 °
Garrison, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.04 in
Chance of precipitation10%
Record high74° (1992)
Record low22° (2020)
Sun, 2550° / 36°0.02
50 °
Garrison, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.02 in
Chance of precipitation18%
Record high71° (1989)
Record low18° (2020)
Mon, 2651° / 36°0.03
51 °
Garrison, Monday, 26 October
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.03 in
Chance of precipitation22%
Record high72° (1990)
Record low17° (2020)
Tue, 2749° / 34°0.05
49 °
Garrison, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high49°
Average low34°
Average precipitation0.05 in
Chance of precipitation32%
Record high69° (1986)
Record low16° (2023)
Wed, 2847° / 34°0.05
47 °
Garrison, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.05 in
Chance of precipitation15%
Record high65° (1985)
Record low15° (1991)
Thu, 2947° / 33°0.08
47 °
Garrison, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.08 in
Chance of precipitation27%
Record high67° (2007)
Record low11° (1991)
Fri, 3046° / 33°0.03
46 °
Garrison, Friday, 30 October
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.03 in
Chance of precipitation23%
Record high61° (1964)
Record low6° (1991)
Sat, 3145° / 32°0.02
45 °
Garrison, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.02 in
Chance of precipitation17%
Record high67° (1999)
Record low3° (1991)
Sun, 0144° / 33°0.04
44 °
Garrison, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high44°
Average low33°
Average precipitation0.04 in
Chance of precipitation13%
Record high66° (1965)
Record low6° (1984)
Mon, 0244° / 31°0.03
44 °
Garrison, Monday, 2 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.03 in
Chance of precipitation15%
Record high71° (1965)
Record low5° (1991)
Tue, 0343° / 31°0.03
43 °
Garrison, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high43°
Average low31°
Average precipitation0.03 in
Chance of precipitation17%
Record high63° (2020)
Record low1° (1991)
Wed, 0444° / 30°0.03
44 °
Garrison, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high44°
Average low30°
Average precipitation0.03 in
Chance of precipitation15%
Record high66° (2020)
Record low2° (1991)
Thu, 0543° / 30°0.02
43 °
Garrison, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high43°
Average low30°
Average precipitation0.02 in
Chance of precipitation15%
Record high67° (2020)
Record low10° (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 Garrison, ND 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 Garrison, ND 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.