Hardin, MT Monthly Weather

Big Horn County3:24 AM MDT45.73°N, 107.61°WElevation 2,907 ft
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October 2026

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Mon
Tue
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Sat
178°/41°<0.01 inAvg 72°/39°
278°/40°Avg 71°/39°
3Avg 71°/38°
479°/40°Avg 70°/38°
589°/38°Avg 70°/38°
690°/37°Avg 69°/37°
789°/36°Avg 68°/37°
879°/34°Avg 68°/36°
990°/40°Avg 67°/36°
10Avg 67°/35°
11Avg 66°/35°
1248°/36°0.09 inAvg 66°/34°
1357°/37°Avg 65°/34°
1463°/31°Avg 65°/34°
1563°/31°Avg 64°/33°
1669°/24°Avg 64°/33°
17Avg 63°/32°
1869°/31°Avg 62°/32°
1972°/30°Avg 62°/32°
20Avg 61°/31°
21 Mostly Sunny 70°/39°Avg 61°/31°
22 Sunny 75°/45°Avg 60°/30°
23 Rain Showers 67°/35°Avg 60°/30°
24 Mostly Sunny 56°/28°Avg 59°/29°
25 Sunny 57°/27°Avg 59°/29°
26 Mostly Sunny 54°/–Avg 58°/29°
27 Partly cloudy 58°/32°Avg 58°/28°
28 Cloudy 62°/38°Avg 57°/28°
29Avg 57°/27°
30Avg 56°/27°
31Avg 56°/27°
Average high74° (normal 67°)
Average low35° (normal 35°)
Warmest / coldest90° / 24°
Precipitation0.09 in (normal 0.76 in to date)
Record high today87° (2003)
Record low today13° (1949)

Observed: Hardin, 0 km away, records since 1948. Normals 1991–2020. Climate data from NOAA's Regional Climate Centers (ACIS); recent days are preliminary. Days ahead: the forecast.

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Conservative index and reflects what the press published. Terms of use.