Monthly outlook for Ollie, MT: average high 55.8°, average low 39.3°. That is 1.4° above the climate normal for October. Precipitation is expected on 4 days (about 1.2 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 17 October (70.7°), the coolest 16 October (25.3°).
55.8°/39.3°
Average high / low
+1.4°
Above normal
4 / 3
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
16 October – 25 October
57.7°
55.2°
+1.4°
26 October – 4 November
52.7°
48.8°
+2.2°
5 November – 14 November
at normal
42.8°
—
October records over 66 years
89.4°1 October 2011All-time high
-7.8°30 October 1991All-time low
Climate normals and records are computed from the nearest reference point — Golva (11 mi).
Sat, 1771° / 44°0
71 °
Ollie, Saturday, 17 October
Mostly clear. High 71°, low 44°.
Pressure29.97 inHg
Wind14 mph SW
Humidity28%
Visibility6.2 mi
Dew point29°
Sun, 1860° / 44°0
60 °
Ollie, Sunday, 18 October
Overcast. High 60°, low 44°.
Pressure30.15 inHg
Wind9.7 mph N
Humidity38%
Visibility6.2 mi
Dew point29°
Mon, 1962° / 41°0
62 °
Ollie, Monday, 19 October
Clear. High 62°, low 41°.
Pressure30.06 inHg
Wind16.7 mph SE
Humidity47%
Visibility6.2 mi
Dew point38°
Tue, 2068° / 45°0
68 °
Ollie, Tuesday, 20 October
Clear. High 68°, low 45°.
Pressure29.91 inHg
Wind6.6 mph S
Humidity54%
Visibility6.2 mi
Dew point46°
Wed, 2156° / 45°0
56 °
Ollie, Wednesday, 21 October
Overcast. High 56°, low 45°.
Pressure30.24 inHg
Wind13.1 mph SE
Humidity87%
Visibility—
Dew point46°
Thu, 2265° / 49°0
65 °
Ollie, Thursday, 22 October
Mostly clear. High 65°, low 49°.
Pressure29.88 inHg
Wind23.4 mph SE
Humidity49%
Visibility—
Dew point40°
Fri, 2357° / 38°0.46
57 °
Ollie, Friday, 23 October
Rain. High 57°, low 38°.
Pressure29.41 inHg
Wind31.1 mph W
Humidity74%
Visibility—
Dew point47°
Sat, 2438° / 36°0.34
38 °
Ollie, Saturday, 24 October
Snow. High 38°, low 36°.
Pressure30.21 inHg
Wind31.2 mph W
Humidity95%
Visibility—
Dew point36°
Sun, 2539° / 35°0.04
39 °
Ollie, Sunday, 25 October
Snow. High 39°, low 35°.
Pressure30.42 inHg
Wind12.9 mph NW
Humidity88%
Visibility—
Dew point34°
Mon, 2651° / 31°0
51 °
Ollie, Monday, 26 October
Clear. High 51°, low 31°.
Pressure30.27 inHg
Wind10.1 mph SW
Humidity42%
Visibility—
Dew point22°
Tue, 2760° / 39°0
60 °
Ollie, Tuesday, 27 October
Clear. High 60°, low 39°.
Pressure29.83 inHg
Wind21.8 mph SE
Humidity53%
Visibility—
Dew point37°
Wed, 2856° / 40°0.1
56 °
Ollie, Wednesday, 28 October
Light rain. High 56°, low 40°.
Pressure29.47 inHg
Wind28.6 mph W
Humidity46%
Visibility—
Dew point35°
Thu, 2941° / 38°0.26
41 °
Ollie, Thursday, 29 October
Rain. High 41°, low 38°.
Pressure29.97 inHg
Wind29.2 mph W
Humidity95%
Visibility—
Dew point38°
Fri, 3055° / 38°0
55 °
Ollie, Friday, 30 October
Overcast. High 55°, low 38°.
Pressure29.97 inHg
Wind10.7 mph SW
Humidity45%
Visibility—
Dew point29°
Sat, 3154° / 42°0
54 °
Ollie, Saturday, 31 October
Clear. High 54°, low 42°.
Pressure29.62 inHg
Wind20.8 mph W
Humidity40%
Visibility—
Dew point27°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0147° / 31°0.04
47 °
Ollie, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high47°
Average low31°
Average precipitation0.04 in
Chance of precipitation17%
Record high69° (1965)
Record low2° (1984)
Mon, 0247° / 31°0.03
47 °
Ollie, Monday, 2 November
Climate normal for this date — 60-year average.
Average high47°
Average low31°
Average precipitation0.03 in
Chance of precipitation17%
Record high72° (1965)
Record low-4° (1991)
Tue, 0346° / 31°0.03
46 °
Ollie, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high46°
Average low31°
Average precipitation0.03 in
Chance of precipitation23%
Record high67° (1975)
Record low-8° (1991)
Wed, 0448° / 30°0.03
48 °
Ollie, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high48°
Average low30°
Average precipitation0.03 in
Chance of precipitation22%
Record high71° (1965)
Record low5° (1991)
Thu, 0547° / 29°0.04
47 °
Ollie, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high47°
Average low29°
Average precipitation0.04 in
Chance of precipitation30%
Record high69° (1975)
Record low1° (2003)
Fri, 0646° / 29°0.02
46 °
Ollie, Friday, 6 November
Climate normal for this date — 60-year average.
Average high46°
Average low29°
Average precipitation0.02 in
Chance of precipitation17%
Record high71° (2009)
Record low1° (1991)
Sat, 0745° / 29°0.02
45 °
Ollie, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high45°
Average low29°
Average precipitation0.02 in
Chance of precipitation12%
Record high73° (1999)
Record low-5° (1991)
Sun, 0844° / 28°0.02
44 °
Ollie, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high44°
Average low28°
Average precipitation0.02 in
Chance of precipitation23%
Record high71° (1999)
Record low-1° (2000)
Mon, 0941° / 26°0.06
41 °
Ollie, Monday, 9 November
Climate normal for this date — 60-year average.
Average high41°
Average low26°
Average precipitation0.06 in
Chance of precipitation27%
Record high68° (2016)
Record low-1° (2000)
Tue, 1041° / 25°0.06
41 °
Ollie, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high41°
Average low25°
Average precipitation0.06 in
Chance of precipitation22%
Record high66° (2007)
Record low-7° (1986)
Wed, 1139° / 23°0.01
39 °
Ollie, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high39°
Average low23°
Average precipitation0.01 in
Chance of precipitation12%
Record high63° (1981)
Record low-5° (2022)
Thu, 1242° / 24°0.03
42 °
Ollie, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high42°
Average low24°
Average precipitation0.03 in
Chance of precipitation17%
Record high71° (1999)
Record low-8° (2022)
Fri, 1342° / 26°0.03
42 °
Ollie, Friday, 13 November
Climate normal for this date — 60-year average.
Average high42°
Average low26°
Average precipitation0.03 in
Chance of precipitation13%
Record high65° (1990)
Record low-12° (2014)
Sat, 1442° / 27°0.02
42 °
Ollie, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high42°
Average low27°
Average precipitation0.02 in
Chance of precipitation13%
Record high66° (1990)
Record low-14° (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 Ollie, MT 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 Ollie, MT 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.