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ZIP 84756 · Newcastle, Utah

Current conditions and the National Weather Service 7-day forecast for ZIP code 84756, Newcastle, Utah — temperature, rain chance, wind, radar and alerts.

Saturday Aug 29 night: a low around 53°F. Sunday Aug 30: a high near 84°F and a low around 50°F. The wettest day looks like Monday Aug 31, near 0.02 in. Highs over the period run 80°F to 84°F.

National Weather Service forecast for ZIP 84756, Newcastle, Utah
DayHighLowPrecip
Saturday Aug 2953°
Sunday Aug 3084°50°0.01 in
Monday Aug 3181°47°0.02 in
Tuesday Sep 181°48°
Wednesday Sep 280°47°
Thursday Sep 382°48°
Friday Sep 483°50°
Saturday Sep 584°

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

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