Monthly outlook for Muddy, MT: average high 58.2°, average low 39°. That is 0.4° above the climate normal for October. Precipitation is expected on 4 days (about 0.8 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 9 October (85°), the coolest 16 October (25.9°).
58.2°/39°
Average high / low
+0.4°
Above normal
4 / 4
Wet days / normal
0.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 October – 18 October
55.8°
57.9°
-1.2°
19 October – 28 October
62.1°
55.5°
+3.6°
29 October – 7 November
at normal
49.2°
—
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).
Sat, 1067° / 48°0.07
67 °
Muddy, Saturday, 10 October
Rain. High 67°, low 48°.
Pressure29.62 inHg
Wind8.2 mph NE
Humidity33%
Visibility6.2 mi
Dew point34°
Sun, 1146° / 39°0.23
46 °
Muddy, Sunday, 11 October
Light rain. High 46°, low 39°.
Pressure30.00 inHg
Wind9.3 mph NE
Humidity78%
Visibility6.2 mi
Dew point37°
Mon, 1241° / 36°0.27
41 °
Muddy, Monday, 12 October
Rain. High 41°, low 36°.
Pressure30.06 inHg
Wind8.8 mph NW
Humidity87%
Visibility6.2 mi
Dew point34°
Tue, 1355° / 29°0
55 °
Muddy, Tuesday, 13 October
Clear. High 55°, low 29°.
Pressure30.09 inHg
Wind4.4 mph NE
Humidity56%
Visibility—
Dew point31°
Wed, 1458° / 35°0
58 °
Muddy, Wednesday, 14 October
Overcast. High 58°, low 35°.
Pressure29.83 inHg
Wind12.5 mph NW
Humidity55%
Visibility—
Dew point37°
Thu, 1545° / 33°0.22
45 °
Muddy, Thursday, 15 October
Snow. High 45°, low 33°.
Pressure30.24 inHg
Wind21.2 mph NW
Humidity95%
Visibility—
Dew point37°
Fri, 1642° / 26°0.03
42 °
Muddy, Friday, 16 October
Light snow. High 42°, low 26°.
Pressure30.62 inHg
Wind14.6 mph NW
Humidity57%
Visibility—
Dew point22°
Sat, 1764° / 33°0
64 °
Muddy, Saturday, 17 October
Overcast. High 64°, low 33°.
Pressure30.15 inHg
Wind8.7 mph S
Humidity26%
Visibility—
Dew point20°
Sun, 1855° / 41°0
55 °
Muddy, Sunday, 18 October
Overcast. High 55°, low 41°.
Pressure30.39 inHg
Wind10.9 mph SE
Humidity27%
Visibility—
Dew point18°
Mon, 1964° / 40°0
64 °
Muddy, Monday, 19 October
Clear. High 64°, low 40°.
Pressure30.06 inHg
Wind21 mph S
Humidity34%
Visibility—
Dew point28°
Tue, 2060° / 47°0
60 °
Muddy, Tuesday, 20 October
Clear. High 60°, low 47°.
Pressure30.06 inHg
Wind17.5 mph NW
Humidity30%
Visibility—
Dew point25°
Wed, 2158° / 44°0
58 °
Muddy, Wednesday, 21 October
Overcast. High 58°, low 44°.
Pressure30.12 inHg
Wind11.8 mph NW
Humidity32%
Visibility—
Dew point26°
Thu, 2261° / 37°0
61 °
Muddy, Thursday, 22 October
Clear. High 61°, low 37°.
Pressure30.30 inHg
Wind9.4 mph SE
Humidity32%
Visibility—
Dew point24°
Fri, 2370° / 47°0
70 °
Muddy, Friday, 23 October
Clear. High 70°, low 47°.
Pressure29.88 inHg
Wind15.9 mph W
Humidity16%
Visibility—
Dew point17°
Sat, 2459° / 42°0
59 °
Muddy, Saturday, 24 October
Clear. High 59°, low 42°.
Pressure30.09 inHg
Wind7.3 mph SE
Humidity30%
Visibility—
Dew point26°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2556° / 35°0.03
56 °
Muddy, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high56°
Average low35°
Average precipitation0.03 in
Chance of precipitation18%
Record high74° (2017)
Record low0° (2020)
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)
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.