Monthly outlook for Sonnette, MT: average high 57.1°, average low 38°. That is 1.1° below the climate normal for October. Precipitation is expected on 4 days (about 1.0 inches), against a normal of 3 days and 0.8 inches. The warmest day looks like 9 October (83.5°), the coolest 12 October (29.7°).
57.1°/38°
Average high / low
−1.1°
Below normal
4 / 3
Wet days / normal
1.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
7 October – 16 October
59.6°
59.6°
-0°
17 October – 26 October
53°
57.4°
-2.5°
27 October – 5 November
at normal
50.8°
—
October records over 66 years
90.3°1 October 2011All-time high
-10.3°30 October 1991All-time low
Climate normals and records are computed from the nearest reference point — Sayle (15 mi).
Thu, 0878° / 46°0
78 °
Sonnette, Thursday, 8 October
Mostly clear. High 78°, low 46°.
Pressure29.94 inHg
Wind6.6 mph W
Humidity26%
Visibility6.2 mi
Dew point35°
Fri, 0983° / 55°0
83 °
Sonnette, Friday, 9 October
Partly cloudy. High 83°, low 55°.
Pressure29.53 inHg
Wind6 mph W
Humidity17%
Visibility6.2 mi
Dew point30°
Sat, 1065° / 48°0.1
65 °
Sonnette, Saturday, 10 October
Light rain. High 65°, low 48°.
Pressure29.56 inHg
Wind7.8 mph N
Humidity33%
Visibility6.2 mi
Dew point34°
Sun, 1145° / 33°0.15
45 °
Sonnette, Sunday, 11 October
Snow. High 45°, low 33°.
Pressure30.12 inHg
Wind9.8 mph N
Humidity86%
Visibility—
Dew point34°
Mon, 1234° / 30°0.67
34 °
Sonnette, Monday, 12 October
Snow. High 34°, low 30°.
Pressure30.39 inHg
Wind7.7 mph NE
Humidity93%
Visibility—
Dew point30°
Tue, 1369° / 35°0
69 °
Sonnette, Tuesday, 13 October
Clear. High 69°, low 35°.
Pressure29.71 inHg
Wind8.7 mph S
Humidity55%
Visibility—
Dew point42°
Wed, 1456° / 42°0.06
56 °
Sonnette, Wednesday, 14 October
Light rain. High 56°, low 42°.
Pressure29.68 inHg
Wind17.7 mph NW
Humidity51%
Visibility—
Dew point34°
Thu, 1543° / 33°0
43 °
Sonnette, Thursday, 15 October
Overcast. High 43°, low 33°.
Pressure30.24 inHg
Wind28.8 mph NW
Humidity46%
Visibility—
Dew point19°
Fri, 1646° / 30°0
46 °
Sonnette, Friday, 16 October
Clear. High 46°, low 30°.
Pressure30.42 inHg
Wind12.2 mph NW
Humidity40%
Visibility—
Dew point18°
Sat, 1752° / 34°0
52 °
Sonnette, Saturday, 17 October
Overcast. High 52°, low 34°.
Pressure30.27 inHg
Wind6.5 mph NE
Humidity27%
Visibility—
Dew point14°
Sun, 1857° / 34°0
57 °
Sonnette, Sunday, 18 October
Partly cloudy. High 57°, low 34°.
Pressure30.12 inHg
Wind5.5 mph SW
Humidity25%
Visibility—
Dew point16°
Mon, 1949° / 38°0
49 °
Sonnette, Monday, 19 October
Overcast. High 49°, low 38°.
Pressure30.18 inHg
Wind15.3 mph NE
Humidity42%
Visibility—
Dew point26°
Tue, 2049° / 32°0
49 °
Sonnette, Tuesday, 20 October
Overcast. High 49°, low 32°.
Pressure30.47 inHg
Wind7.9 mph SE
Humidity52%
Visibility—
Dew point26°
Wed, 2152° / 33°0
52 °
Sonnette, Wednesday, 21 October
Partly cloudy. High 52°, low 33°.
Pressure30.42 inHg
Wind5.9 mph SE
Humidity39%
Visibility—
Dew point23°
Thu, 2258° / 36°0
58 °
Sonnette, Thursday, 22 October
Mostly clear. High 58°, low 36°.
Pressure30.06 inHg
Wind13.3 mph NW
Humidity23%
Visibility—
Dew point16°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2356° / 35°0.04
56 °
Sonnette, Friday, 23 October
Climate normal for this date — 60-year average.
Average high56°
Average low35°
Average precipitation0.04 in
Chance of precipitation25%
Record high77° (2003)
Record low1° (2020)
Sat, 2456° / 35°0.03
56 °
Sonnette, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high56°
Average low35°
Average precipitation0.03 in
Chance of precipitation22%
Record high75° (1965)
Record low15° (2020)
Sun, 2557° / 35°0.02
57 °
Sonnette, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high57°
Average low35°
Average precipitation0.02 in
Chance of precipitation15%
Record high75° (2014)
Record low-6° (2020)
Mon, 2655° / 34°0.05
55 °
Sonnette, Monday, 26 October
Climate normal for this date — 60-year average.
Average high55°
Average low34°
Average precipitation0.05 in
Chance of precipitation22%
Record high74° (1960)
Record low-8° (2020)
Tue, 2754° / 33°0.04
54 °
Sonnette, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high54°
Average low33°
Average precipitation0.04 in
Chance of precipitation22%
Record high75° (2016)
Record low3° (2023)
Wed, 2853° / 33°0.05
53 °
Sonnette, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high53°
Average low33°
Average precipitation0.05 in
Chance of precipitation27%
Record high77° (1990)
Record low3° (2023)
Thu, 2951° / 32°0.08
51 °
Sonnette, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high51°
Average low32°
Average precipitation0.08 in
Chance of precipitation33%
Record high75° (1968)
Record low-3° (1991)
Fri, 3050° / 31°0.03
50 °
Sonnette, Friday, 30 October
Climate normal for this date — 60-year average.
Average high50°
Average low31°
Average precipitation0.03 in
Chance of precipitation17%
Record high72° (1965)
Record low-10° (1991)
Sat, 3150° / 31°0.02
50 °
Sonnette, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high50°
Average low31°
Average precipitation0.02 in
Chance of precipitation17%
Record high76° (1999)
Record low6° (1991)
Sun, 0150° / 31°0.03
50 °
Sonnette, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high50°
Average low31°
Average precipitation0.03 in
Chance of precipitation17%
Record high73° (1965)
Record low2° (1991)
Mon, 0249° / 30°0.03
49 °
Sonnette, Monday, 2 November
Climate normal for this date — 60-year average.
Average high49°
Average low30°
Average precipitation0.03 in
Chance of precipitation18%
Record high74° (1965)
Record low-10° (1995)
Tue, 0349° / 30°0.02
49 °
Sonnette, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high49°
Average low30°
Average precipitation0.02 in
Chance of precipitation17%
Record high68° (1975)
Record low-9° (1995)
Wed, 0451° / 30°0.02
51 °
Sonnette, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high51°
Average low30°
Average precipitation0.02 in
Chance of precipitation17%
Record high71° (1965)
Record low6° (1995)
Thu, 0550° / 31°0.03
50 °
Sonnette, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high50°
Average low31°
Average precipitation0.03 in
Chance of precipitation22%
Record high71° (1975)
Record low7° (1961)
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 Sonnette, 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 Sonnette, 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.