Monthly outlook for Muddy, MT: average high 62°, average low 42.4°. That is 2.7° above the climate normal for October. Precipitation is expected on 3 days (about 0.4 inches), against a normal of 4 days and 0.7 inches. The warmest day looks like 19 October (75.5°), the coolest 14 October (30.3°).
62°/42.4°
Average high / low
+2.7°
Above normal
3 / 4
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
10 October – 19 October
60°
57.8°
+1.2°
20 October – 29 October
65.5°
54.7°
+6°
30 October – 8 November
at normal
48.7°
—
October records over 66 years
89.8°1 October 2011All-time high
-16.1°30 October 1991All-time low
Climate normals and records are computed from the nearest reference point — Lame Deer (8 mi).
Sun, 1150° / 44°0.26
50 °
Muddy, Sunday, 11 October
Light rain. High 50°, low 44°.
Pressure29.88 inHg
Wind9.1 mph NE
Humidity95%
Visibility3.7 mi
Dew point43°
Mon, 1247° / 36°0.09
47 °
Muddy, Monday, 12 October
Light rain. High 47°, low 36°.
Pressure30.09 inHg
Wind7.9 mph NW
Humidity73%
Visibility6.2 mi
Dew point33°
Tue, 1347° / 32°0
47 °
Muddy, Tuesday, 13 October
Overcast. High 47°, low 32°.
Pressure30.06 inHg
Wind2.2 mph SW
Humidity68%
Visibility6.2 mi
Dew point35°
Wed, 1457° / 30°0
57 °
Muddy, Wednesday, 14 October
Mostly clear. High 57°, low 30°.
Pressure30.27 inHg
Wind1.7 mph E
Humidity43%
Visibility6.2 mi
Dew point27°
Thu, 1558° / 36°0
58 °
Muddy, Thursday, 15 October
Clear. High 58°, low 36°.
Pressure30.45 inHg
Wind5.5 mph N
Humidity41%
Visibility—
Dew point29°
Fri, 1656° / 37°0
56 °
Muddy, Friday, 16 October
Clear. High 56°, low 37°.
Pressure30.47 inHg
Wind14.3 mph SE
Humidity38%
Visibility—
Dew point28°
Sat, 1769° / 35°0
69 °
Muddy, Saturday, 17 October
Clear. High 69°, low 35°.
Pressure30.09 inHg
Wind10.4 mph SE
Humidity22%
Visibility—
Dew point18°
Sun, 1873° / 51°0
73 °
Muddy, Sunday, 18 October
Overcast. High 73°, low 51°.
Pressure30.03 inHg
Wind7.4 mph NW
Humidity20%
Visibility—
Dew point24°
Mon, 1976° / 52°0
76 °
Muddy, Monday, 19 October
Clear. High 76°, low 52°.
Pressure30.00 inHg
Wind5.1 mph NW
Humidity18%
Visibility—
Dew point24°
Tue, 2071° / 52°0
71 °
Muddy, Tuesday, 20 October
Mostly clear. High 71°, low 52°.
Pressure29.88 inHg
Wind11 mph W
Humidity27%
Visibility—
Dew point30°
Wed, 2158° / 45°0
58 °
Muddy, Wednesday, 21 October
Mostly clear. High 58°, low 45°.
Pressure30.18 inHg
Wind12.8 mph NW
Humidity37%
Visibility—
Dew point27°
Thu, 2264° / 42°0
64 °
Muddy, Thursday, 22 October
Overcast. High 64°, low 42°.
Pressure30.15 inHg
Wind6.8 mph NW
Humidity28%
Visibility—
Dew point24°
Fri, 2365° / 45°0
65 °
Muddy, Friday, 23 October
Partly cloudy. High 65°, low 45°.
Pressure30.18 inHg
Wind7.4 mph E
Humidity29%
Visibility—
Dew point26°
Sat, 2465° / 45°0
65 °
Muddy, Saturday, 24 October
Clear. High 65°, low 45°.
Pressure30.06 inHg
Wind6.2 mph NE
Humidity31%
Visibility—
Dew point29°
Sun, 2569° / 48°0
69 °
Muddy, Sunday, 25 October
Overcast. High 69°, low 48°.
Pressure29.91 inHg
Wind16.6 mph NW
Humidity24%
Visibility—
Dew point26°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2654° / 34°0.05
54 °
Muddy, Monday, 26 October
Climate normal for this date — 60-year average.
Average high54°
Average low34°
Average precipitation0.05 in
Chance of precipitation18%
Record high74° (1960)
Record low0° (2020)
Tue, 2753° / 33°0.04
53 °
Muddy, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high53°
Average low33°
Average precipitation0.04 in
Chance of precipitation23%
Record high75° (2024)
Record low3° (2023)
Wed, 2852° / 33°0.05
52 °
Muddy, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high52°
Average low33°
Average precipitation0.05 in
Chance of precipitation25%
Record high76° (1990)
Record low7° (2023)
Thu, 2950° / 32°0.07
50 °
Muddy, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high50°
Average low32°
Average precipitation0.07 in
Chance of precipitation33%
Record high74° (1968)
Record low-5° (1991)
Fri, 3050° / 30°0.04
50 °
Muddy, Friday, 30 October
Climate normal for this date — 60-year average.
Average high50°
Average low30°
Average precipitation0.04 in
Chance of precipitation20%
Record high71° (1990)
Record low-16° (1991)
Sat, 3149° / 31°0.03
49 °
Muddy, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high49°
Average low31°
Average precipitation0.03 in
Chance of precipitation18%
Record high74° (1999)
Record low4° (1996)
Sun, 0149° / 31°0.03
49 °
Muddy, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high49°
Average low31°
Average precipitation0.03 in
Chance of precipitation17%
Record high72° (1965)
Record low1° (1991)
Mon, 0249° / 30°0.03
49 °
Muddy, Monday, 2 November
Climate normal for this date — 60-year average.
Average high49°
Average low30°
Average precipitation0.03 in
Chance of precipitation23%
Record high74° (1965)
Record low-7° (1995)
Tue, 0349° / 30°0.02
49 °
Muddy, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high49°
Average low30°
Average precipitation0.02 in
Chance of precipitation15%
Record high68° (2020)
Record low-14° (1991)
Wed, 0450° / 31°0.03
50 °
Muddy, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high50°
Average low31°
Average precipitation0.03 in
Chance of precipitation13%
Record high71° (1975)
Record low6° (1995)
Thu, 0549° / 31°0.04
49 °
Muddy, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high49°
Average low31°
Average precipitation0.04 in
Chance of precipitation25%
Record high73° (2020)
Record low4° (1961)
Fri, 0648° / 29°0.04
48 °
Muddy, Friday, 6 November
Climate normal for this date — 60-year average.
Average high48°
Average low29°
Average precipitation0.04 in
Chance of precipitation20%
Record high73° (2010)
Record low8° (1991)
Sat, 0748° / 29°0.03
48 °
Muddy, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high48°
Average low29°
Average precipitation0.03 in
Chance of precipitation27%
Record high72° (1999)
Record low1° (1991)
Sun, 0846° / 28°0.04
46 °
Muddy, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high46°
Average low28°
Average precipitation0.04 in
Chance of precipitation23%
Record high74° (1999)
Record low3° (2000)
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 Muddy, 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 Muddy, 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.