Monthly outlook for Charlo, MT: average high 58.6°, average low 37.6°. That is 0.5° above the climate normal for October. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 6 days and 1.2 inches. The warmest day looks like 7 October (77.4°), the coolest 16 October (30.6°).
58.6°/37.6°
Average high / low
+0.5°
Above normal
2 / 6
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
7 October – 16 October
58.7°
58.5°
+0.1°
17 October – 26 October
58.4°
54.9°
+1.9°
27 October – 5 November
at normal
47.9°
—
October records over 66 years
85.6°1 October 1992All-time high
-2.2°25 October 2020All-time low
Climate normals and records are computed from the nearest reference point — St. Ignatius (9 mi).
Thu, 0877° / 43°0
77 °
Charlo, Thursday, 8 October
Partly cloudy. High 77°, low 43°.
Pressure30.03 inHg
Wind1.1 mph SW
Humidity43%
Visibility6.2 mi
Dew point40°
Fri, 0975° / 52°0.04
75 °
Charlo, Friday, 9 October
Light rain. High 75°, low 52°.
Pressure29.53 inHg
Wind10.6 mph SE
Humidity30%
Visibility6.2 mi
Dew point37°
Sat, 1052° / 45°0.04
52 °
Charlo, Saturday, 10 October
Light rain. High 52°, low 45°.
Pressure29.74 inHg
Wind9.1 mph N
Humidity67%
Visibility6.2 mi
Dew point40°
Sun, 1149° / 40°0.04
49 °
Charlo, Sunday, 11 October
Light rain. High 49°, low 40°.
Pressure30.15 inHg
Wind10.4 mph N
Humidity53%
Visibility—
Dew point29°
Mon, 1249° / 32°0
49 °
Charlo, Monday, 12 October
Clear. High 49°, low 32°.
Pressure30.27 inHg
Wind4 mph W
Humidity66%
Visibility—
Dew point30°
Tue, 1362° / 33°0
62 °
Charlo, Tuesday, 13 October
Clear. High 62°, low 33°.
Pressure29.80 inHg
Wind13.4 mph SW
Humidity52%
Visibility—
Dew point30°
Wed, 1448° / 37°0.14
48 °
Charlo, Wednesday, 14 October
Light rain. High 48°, low 37°.
Pressure29.97 inHg
Wind9.2 mph SW
Humidity58%
Visibility—
Dew point30°
Thu, 1549° / 32°0
49 °
Charlo, Thursday, 15 October
Overcast. High 49°, low 32°.
Pressure30.45 inHg
Wind4.1 mph S
Humidity57%
Visibility—
Dew point28°
Fri, 1649° / 31°0
49 °
Charlo, Friday, 16 October
Overcast. High 49°, low 31°.
Pressure30.45 inHg
Wind3.3 mph W
Humidity46%
Visibility—
Dew point22°
Sat, 1755° / 34°0
55 °
Charlo, Saturday, 17 October
Overcast. High 55°, low 34°.
Pressure30.36 inHg
Wind4.9 mph NW
Humidity45%
Visibility—
Dew point25°
Sun, 1856° / 33°0
56 °
Charlo, Sunday, 18 October
Mostly clear. High 56°, low 33°.
Pressure30.24 inHg
Wind3.5 mph NW
Humidity39%
Visibility—
Dew point22°
Mon, 1960° / 36°0
60 °
Charlo, Monday, 19 October
Clear. High 60°, low 36°.
Pressure30.24 inHg
Wind3.3 mph NW
Humidity38%
Visibility—
Dew point25°
Tue, 2062° / 38°0
62 °
Charlo, Tuesday, 20 October
Clear. High 62°, low 38°.
Pressure30.33 inHg
Wind5.6 mph NW
Humidity43%
Visibility—
Dew point30°
Wed, 2159° / 36°0
59 °
Charlo, Wednesday, 21 October
Clear. High 59°, low 36°.
Pressure30.33 inHg
Wind3.5 mph W
Humidity28%
Visibility—
Dew point17°
Thu, 2258° / 36°0
58 °
Charlo, Thursday, 22 October
Clear. High 58°, low 36°.
Pressure30.18 inHg
Wind3.7 mph NW
Humidity34%
Visibility—
Dew point21°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2354° / 36°0.09
54 °
Charlo, Friday, 23 October
Climate normal for this date — 60-year average.
Average high54°
Average low36°
Average precipitation0.09 in
Chance of precipitation42%
Record high71° (2003)
Record low23° (2020)
Sat, 2454° / 36°0.08
54 °
Charlo, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high54°
Average low36°
Average precipitation0.08 in
Chance of precipitation35%
Record high71° (2007)
Record low16° (1975)
Sun, 2553° / 35°0.08
53 °
Charlo, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high53°
Average low35°
Average precipitation0.08 in
Chance of precipitation42%
Record high68° (2005)
Record low-2° (2020)
Mon, 2651° / 36°0.09
51 °
Charlo, Monday, 26 October
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.09 in
Chance of precipitation43%
Record high69° (1986)
Record low5° (2020)
Tue, 2750° / 34°0.09
50 °
Charlo, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high50°
Average low34°
Average precipitation0.09 in
Chance of precipitation40%
Record high65° (1985)
Record low17° (1975)
Wed, 2850° / 33°0.1
50 °
Charlo, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high50°
Average low33°
Average precipitation0.1 in
Chance of precipitation43%
Record high65° (1987)
Record low15° (1991)
Thu, 2949° / 34°0.09
49 °
Charlo, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high49°
Average low34°
Average precipitation0.09 in
Chance of precipitation43%
Record high66° (1987)
Record low7° (1961)
Fri, 3048° / 32°0.07
48 °
Charlo, Friday, 30 October
Climate normal for this date — 60-year average.
Average high48°
Average low32°
Average precipitation0.07 in
Chance of precipitation35%
Record high67° (2008)
Record low5° (1972)
Sat, 3147° / 32°0.11
47 °
Charlo, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.11 in
Chance of precipitation47%
Record high65° (1988)
Record low6° (1996)
Sun, 0147° / 32°0.11
47 °
Charlo, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.11 in
Chance of precipitation43%
Record high66° (1988)
Record low8° (1984)
Mon, 0247° / 32°0.11
47 °
Charlo, Monday, 2 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.11 in
Chance of precipitation40%
Record high64° (1981)
Record low5° (1991)
Tue, 0347° / 31°0.06
47 °
Charlo, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high47°
Average low31°
Average precipitation0.06 in
Chance of precipitation30%
Record high64° (1981)
Record low0° (1973)
Wed, 0447° / 32°0.11
47 °
Charlo, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.11 in
Chance of precipitation58%
Record high61° (1980)
Record low-3° (1973)
Thu, 0546° / 32°0.11
46 °
Charlo, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.11 in
Chance of precipitation53%
Record high64° (1980)
Record low2° (2003)
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 Charlo, 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 Charlo, 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.