As of 09:56 MDT

Weather in Simms, MT

53°Current weather

Simms, Wednesday, 7 October, 09:56

Partly cloudy. Feels like 50°. High 72°, low 45°.

Pressure30.12 inHg
Wind4.1 mph NW
Humidity43%
Visibility6.2 mi
Dew point31°

Monthly outlook for Simms, MT: average high 54.9°, average low 35.6°. That is 0.9° below the climate normal for October. Precipitation is expected on 2 days (about 1.0 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 8 October (77.3°), the coolest 13 October (23.9°).

54.9°/35.6°
Average high / low
−0.9°
Below normal
2 / 3
Wet days / normal
1.0 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
7 October – 16 October52.6°57.1°-2.5°
17 October – 26 October58.8°54.4°+2.5°
27 October – 5 Novemberat normal47.7°—

October records over 66 years

86.2°1 October 1992All-time high
-10.5°30 October 1991All-time low

Climate normals and records are computed from the nearest reference point — Fairfield (9 mi).

Thu, 0877° / 43°0Partly cloudy
77 °Partly cloudy

Simms, Thursday, 8 October

Partly cloudy. High 77°, low 43°.

Pressure29.91 inHg
Wind7.8 mph SW
Humidity20%
Visibility6.2 mi
Dew point25°
Fri, 0976° / 55°0Overcast
76 °Overcast

Simms, Friday, 9 October

Overcast. High 76°, low 55°.

Pressure29.44 inHg
Wind18.5 mph SW
Humidity21%
Visibility6.2 mi
Dew point30°
Sat, 1056° / 34°0.64Snow
56 °Snow

Simms, Saturday, 10 October

Snow. High 56°, low 34°.

Pressure29.88 inHg
Wind14 mph N
Humidity96%
Visibility1.1 mi
Dew point35°
Sun, 1132° / 30°0.37Snow
32 °Snow

Simms, Sunday, 11 October

Snow. High 32°, low 30°.

Pressure30.30 inHg
Wind13 mph N
Humidity97%
Visibility—
Dew point30°
Mon, 1233° / 26°0.01Light snow
33 °Light snow

Simms, Monday, 12 October

Light snow. High 33°, low 26°.

Pressure30.33 inHg
Wind8.5 mph NE
Humidity95%
Visibility—
Dew point29°
Tue, 1344° / 24°0Clear
44 °Clear

Simms, Tuesday, 13 October

Clear. High 44°, low 24°.

Pressure29.88 inHg
Wind17.6 mph S
Humidity95%
Visibility—
Dew point36°
Wed, 1451° / 37°0Overcast
51 °Overcast

Simms, Wednesday, 14 October

Overcast. High 51°, low 37°.

Pressure29.59 inHg
Wind19.5 mph N
Humidity60%
Visibility—
Dew point36°
Thu, 1541° / 33°0Light snow
41 °Light snow

Simms, Thursday, 15 October

Light snow. High 41°, low 33°.

Pressure30.36 inHg
Wind18.5 mph N
Humidity54%
Visibility—
Dew point22°
Fri, 1644° / 30°0.01Light snow
44 °Light snow

Simms, Friday, 16 October

Light snow. High 44°, low 30°.

Pressure30.42 inHg
Wind7.9 mph E
Humidity61%
Visibility—
Dew point26°
Sat, 1751° / 30°0Clear
51 °Clear

Simms, Saturday, 17 October

Clear. High 51°, low 30°.

Pressure30.12 inHg
Wind11.4 mph S
Humidity45%
Visibility—
Dew point24°
Sun, 1857° / 33°0Clear
57 °Clear

Simms, Sunday, 18 October

Clear. High 57°, low 33°.

Pressure30.00 inHg
Wind10.3 mph S
Humidity40%
Visibility—
Dew point25°
Mon, 1963° / 36°0Clear
63 °Clear

Simms, Monday, 19 October

Clear. High 63°, low 36°.

Pressure29.83 inHg
Wind15.9 mph S
Humidity39%
Visibility—
Dew point27°
Tue, 2054° / 39°0Partly cloudy
54 °Partly cloudy

Simms, Tuesday, 20 October

Partly cloudy. High 54°, low 39°.

Pressure30.24 inHg
Wind7.1 mph N
Humidity36%
Visibility—
Dew point23°
Wed, 2161° / 37°0Clear
61 °Clear

Simms, Wednesday, 21 October

Clear. High 61°, low 37°.

Pressure30.12 inHg
Wind9.4 mph S
Humidity38%
Visibility—
Dew point26°
Thu, 2265° / 40°0Overcast
65 °Overcast

Simms, Thursday, 22 October

Overcast. High 65°, low 40°.

Pressure29.94 inHg
Wind12.4 mph S
Humidity35%
Visibility—
Dew point27°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2353° / 34°0.04Climate normal
53 °Climate normal

Simms, Friday, 23 October

Climate normal for this date — 60-year average.

Average high53°
Average low34°
Average precipitation0.04 in
Chance of precipitation20%
Record high72° (1965)
Record low4° (2020)
Sat, 2453° / 32°0.02Climate normal
53 °Climate normal

Simms, Saturday, 24 October

Climate normal for this date — 60-year average.

Average high53°
Average low32°
Average precipitation0.02 in
Chance of precipitation13%
Record high72° (2007)
Record low5° (1975)
Sun, 2552° / 33°0.02Climate normal
52 °Climate normal

Simms, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high52°
Average low33°
Average precipitation0.02 in
Chance of precipitation7%
Record high71° (1990)
Record low2° (2020)
Mon, 2651° / 32°0.04Climate normal
51 °Climate normal

Simms, Monday, 26 October

Climate normal for this date — 60-year average.

Average high51°
Average low32°
Average precipitation0.04 in
Chance of precipitation20%
Record high68° (2005)
Record low6° (2020)
Tue, 2751° / 31°0.03Climate normal
51 °Climate normal

Simms, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high51°
Average low31°
Average precipitation0.03 in
Chance of precipitation18%
Record high68° (2024)
Record low8° (2023)
Wed, 2850° / 30°0.03Climate normal
50 °Climate normal

Simms, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high50°
Average low30°
Average precipitation0.03 in
Chance of precipitation17%
Record high71° (2008)
Record low-1° (1991)
Thu, 2948° / 29°0.03Climate normal
48 °Climate normal

Simms, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high48°
Average low29°
Average precipitation0.03 in
Chance of precipitation18%
Record high69° (1987)
Record low-2° (1991)
Fri, 3048° / 28°0.02Climate normal
48 °Climate normal

Simms, Friday, 30 October

Climate normal for this date — 60-year average.

Average high48°
Average low28°
Average precipitation0.02 in
Chance of precipitation13%
Record high70° (1962)
Record low-10° (1991)
Sat, 3147° / 29°0.03Climate normal
47 °Climate normal

Simms, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high47°
Average low29°
Average precipitation0.03 in
Chance of precipitation20%
Record high67° (2014)
Record low-8° (2002)
Sun, 0147° / 29°0.03Climate normal
47 °Climate normal

Simms, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high47°
Average low29°
Average precipitation0.03 in
Chance of precipitation17%
Record high69° (2025)
Record low-10° (1984)
Mon, 0247° / 29°0.03Climate normal
47 °Climate normal

Simms, Monday, 2 November

Climate normal for this date — 60-year average.

Average high47°
Average low29°
Average precipitation0.03 in
Chance of precipitation22%
Record high66° (1981)
Record low-7° (1991)
Tue, 0347° / 29°0.02Climate normal
47 °Climate normal

Simms, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high47°
Average low29°
Average precipitation0.02 in
Chance of precipitation13%
Record high69° (1962)
Record low-4° (1991)
Wed, 0447° / 29°0.03Climate normal
47 °Climate normal

Simms, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high47°
Average low29°
Average precipitation0.03 in
Chance of precipitation18%
Record high66° (2010)
Record low2° (2017)
Thu, 0546° / 28°0.03Climate normal
46 °Climate normal

Simms, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high46°
Average low28°
Average precipitation0.03 in
Chance of precipitation22%
Record high68° (2010)
Record low-13° (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 Simms, 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 Simms, 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.