Weather WorldHillsboro Reservoir, OR 7-Day Night Weather Forecast
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Hillsboro Reservoir, OR Weather Forecast
Hillsboro Reservoir, OR Weather Forecast Date: 1128 PM PDT Sun Aug 23 2026
The area/counties/county of: Tualatin Valley, including the cities of: Sherwood, Hillsboro, Forest Grove, Rockcreek, and Tigard.or toggle through each period.
Overnight... Clear. Lows in the upper 50s. Northwest wind 5 to 10 mph.
Monday... Sunny. Patchy smoke. Highs in the mid 90s. Winds light.
Monday Night... Mostly clear. Patchy smoke. Lows around 60. Winds light in the evening, becoming light and variable.
Tuesday... Mostly sunny. Highs in the upper 80s. Winds light.
Tuesday Night... Mostly clear. Lows in the mid 50s. Winds light in the evening, becoming light and variable.
Wednesday... Mostly sunny. Highs in the lower 80s.
Wednesday Night... Mostly clear. Lows in the mid 50s.
Thursday... Mostly sunny. Highs in the upper 70s.
Thursday Night... Mostly clear. Lows in the lower 50s.
Friday... Mostly sunny. Highs in the upper 70s.
Friday Night... Mostly clear. Lows in the lower 50s.
Saturday... Partly sunny with a 20% chance of rain. Highs in the mid 70s.
Saturday Night... Partly cloudy in the evening, then becoming mostly clear. Lows in the lower 50s.
POP = Probability of Precipitation
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