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ZIP 83540 · Sweetwater, Idaho

Current conditions and the National Weather Service 7-day forecast for ZIP code 83540, Sweetwater, Idaho — temperature, rain chance, wind, radar and alerts.

Saturday Aug 29 night: a low around 48°F. Sunday Aug 30: a high near 75°F and a low around 47°F. Highs over the period run 72°F to 86°F.

National Weather Service forecast for ZIP 83540, Sweetwater, Idaho
DayHighLowPrecip
Saturday Aug 2948°
Sunday Aug 3075°47°
Monday Aug 3186°55°
Tuesday Sep 185°54°
Wednesday Sep 277°51°
Thursday Sep 372°47°
Friday Sep 473°48°
Saturday Sep 576°

NOAA NWS NDFD 2.5 km, run 2026-08-30 00:00 UTC · days are local time in America/Los Angeles. The live page updates continuously.

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