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Newcastle, WY Weather Forecast
Newcastle, WY Weather Forecast Date: 327 PM MDT Mon Oct 26 2026
The area/counties/county of: Newcastle, including the city of Newcastle.or toggle through each period.
Late This Afternoon... Mostly cloudy. Near steady temperature around 40. Southeast winds 10 to 15 mph with gusts up to 30 mph.
Tonight... Cloudy. Areas of fog. Lows in the lower 30s. Southeast winds 10 to 15 mph with gusts up to 30 mph.
Tuesday... Partly cloudy in the morning, then clearing. Patchy fog in the morning. Not as cool with highs in the lower 60s. Southwest winds 10 to 20 mph with gusts up to 35 mph.
Tuesday Night... Mostly clear in the evening, then partly cloudy with a slight chance of rain after midnight. Lows in the mid 30s. Southeast winds 5 to 10 mph. Chance of rain 10%.
Wednesday... Partly cloudy in the morning, then clearing. Highs in the upper 50s. West winds 5 to 10 mph. Gusts up to 20 mph in the afternoon.
Wednesday Night... Clear. Lows in the lower 30s. Southeast winds 5 to 10 mph.
Thursday... Mostly sunny. Highs in the lower 60s.
Thursday Night... Partly cloudy. Lows in the upper 30s.
Friday... Partly cloudy. Highs around 60.
Friday Night... Partly cloudy. Lows in the upper 30s.
Saturday... Partly cloudy. Highs around 60.
Saturday Night... Partly cloudy in the evening, then becoming mostly cloudy. A 20% chance of rain. Lows in the upper 30s.
Sunday... Becoming partly cloudy. A 20% chance of rain. Highs in the upper 50s.
Sunday Night... Partly cloudy in the evening, then becoming mostly cloudy. A 50% chance of rain. Lows in the mid 30s.
POP = Probability of Precipitation
Newcastle Radar Loop
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