Monthly outlook for Ollie, MT: average high 54.9°, average low 38.5°. That is 0.9° above the climate normal for October. Precipitation is expected on 2 days (about 1.2 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 22 October (72.7°), the coolest 30 October (27.6°).
54.9°/38.5°
Average high / low
+0.9°
Above normal
2 / 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
61.7°
55.2°
+3.6°
26 October – 4 November
43.5°
48.8°
-2.9°
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° / 45°0
71 °
Ollie, Saturday, 17 October
Mostly clear. High 71°, low 45°.
Pressure30.00 inHg
Wind13.6 mph SW
Humidity27%
Visibility6.2 mi
Dew point30°
Sun, 1861° / 47°0
61 °
Ollie, Sunday, 18 October
Overcast. High 61°, low 47°.
Pressure30.12 inHg
Wind9.1 mph NE
Humidity37%
Visibility6.2 mi
Dew point30°
Mon, 1962° / 42°0
62 °
Ollie, Monday, 19 October
Clear. High 62°, low 42°.
Pressure30.06 inHg
Wind15.3 mph SE
Humidity51%
Visibility6.2 mi
Dew point40°
Tue, 2069° / 45°0
69 °
Ollie, Tuesday, 20 October
Clear. High 69°, low 45°.
Pressure29.85 inHg
Wind14.8 mph SE
Humidity55%
Visibility—
Dew point44°
Wed, 2160° / 45°0
60 °
Ollie, Wednesday, 21 October
Clear. High 60°, low 45°.
Pressure30.18 inHg
Wind10.6 mph NW
Humidity65%
Visibility—
Dew point42°
Thu, 2273° / 48°0
73 °
Ollie, Thursday, 22 October
Clear. High 73°, low 48°.
Pressure29.88 inHg
Wind15.2 mph S
Humidity30%
Visibility—
Dew point33°
Fri, 2372° / 51°0
72 °
Ollie, Friday, 23 October
Overcast. High 72°, low 51°.
Pressure29.53 inHg
Wind22.3 mph NW
Humidity36%
Visibility—
Dew point40°
Sat, 2446° / 34°0.41
46 °
Ollie, Saturday, 24 October
Snow. High 46°, low 34°.
Pressure30.15 inHg
Wind23 mph NW
Humidity95%
Visibility—
Dew point33°
Sun, 2545° / 34°0
45 °
Ollie, Sunday, 25 October
Overcast. High 45°, low 34°.
Pressure30.39 inHg
Wind10.2 mph SE
Humidity37%
Visibility—
Dew point17°
Mon, 2651° / 32°0
51 °
Ollie, Monday, 26 October
Overcast. High 51°, low 32°.
Pressure29.94 inHg
Wind15.3 mph S
Humidity50%
Visibility—
Dew point26°
Tue, 2748° / 37°0
48 °
Ollie, Tuesday, 27 October
Clear. High 48°, low 37°.
Pressure29.83 inHg
Wind20.9 mph W
Humidity51%
Visibility—
Dew point27°
Wed, 2842° / 35°0.03
42 °
Ollie, Wednesday, 28 October
Light rain. High 42°, low 35°.
Pressure29.77 inHg
Wind18.3 mph E
Humidity63%
Visibility—
Dew point29°
Thu, 2935° / 31°0.8
35 °
Ollie, Thursday, 29 October
Snow. High 35°, low 31°.
Pressure29.94 inHg
Wind15.2 mph NE
Humidity100%
Visibility—
Dew point32°
Fri, 3037° / 28°0
37 °
Ollie, Friday, 30 October
Mostly clear. High 37°, low 28°.
Pressure29.88 inHg
Wind9.2 mph W
Humidity99%
Visibility—
Dew point32°
Sat, 3149° / 37°0.01
49 °
Ollie, Saturday, 31 October
Light rain. High 49°, low 37°.
Pressure29.71 inHg
Wind14.2 mph W
Humidity73%
Visibility—
Dew point36°
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.