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Weather worth knowing

Great Falls, MT

Saturday, October 10

32° light snow and fog/mist

Alerts · National Weather Service

Winter Storm Warninguntil Mon 6 AM
Winter Storm Warning issued October 10 at 4:13PM MDT until October 12 at 6:00AM MDT by NWS Great Falls MT

Winter Storm Warning holds through 6 AM Monday

Heavy snow and patchy blowing snow are setting in over Great Falls tonight, with temperatures sliding from 36 at 6 PM to near 28 by morning. A band of snow parked over central Montana barely moves through the next two days, and the wet, heavy load on leafy branches and power lines is the main hazard.

winter storm · alert · snow

Next Around 7 inches of snow by Monday

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Changed since yesterday

Holding steady — no day's high or rain chance moved since yesterday's edition.

Next five days

SunMonTueWedThu
High34°35°43°50°54°
Low29°25°27°31°33°
Precip❄ 100%❄ 65%0%14%20%
Alerts

The week, as the models see it

Tuesday: anywhere from 33 to 54 — the models span 33–54° on Tue, most near 38°.

Forecast high temperature (°F) · next 7 days · a blend of models
PNG ↓
30°50°70°SatSunMonTueWedThuFri

82 model runs, colored by temperature  ·  middle of the pack  ·  official forecast

The scorecard · this week

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F
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No graded days yet this week.

Also worth knowing

Around 7 inches of snow by Monday

Great Falls should end up with 4 to 9 inches, centered near 7, with the heaviest falling from midnight tonight to 3 AM Monday; the snowiest model goes to a foot. Melted down, that is about an inch of water, and grass will stack it up faster than still-warm pavement.

snow · totals
Rainfall, running total (inches) · next 3 days · a blend of models
PNG ↓
1 in2 in00.511.52Sun 12 AMSun 12 PMMon 12 AMMon 12 PMTue 12 AMTue 12 PMINCHES

median run, running total  ·  middle 80% of 82 runs  ·  threads = individual runs  ·  dashed = reference amounts

Snowfall, running total (inches) · next 3 days · a blend of models
PNG ↓
2 in6 in0246810Sun 12 AMSun 12 PMMon 12 AMMon 12 PMTue 12 AMTue 12 PMINCHES OF SNOW

median run, running total  ·  middle 80% of 82 runs  ·  threads = individual runs  ·  dashed = reference amounts

Sunday stays near 34 with snow all day

Sunday looks like a high near 34 under steady snow, and Columbus Day only about 35 as light snow tapers off to clouds. Remnants of Rachel feed extra moisture into the storm before it winds down Monday.

cold · snow

Tuesday: anywhere from 33 to 54

Tuesday should land near 43 in sunshine, but the models span 33 to 54 depending on how fast the fresh snow melts off. It follows what could be the coldest night of the week, with teens possible and single digits in spots.

fork · thaw

Afternoon edition, 2026-10-10 · station history coming · tomorrow morning: what today's forecast said, next to what happened.

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Every forecast here is kept. The first receipt — what the forecast said, next to what GTF observed — lands the morning after the station reports.

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