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Grant County, OR Weather Tomorrow

From tomorrow through the next 5 days, stay updated on Grant County weather with daily precipitation forecasts, changing sky conditions, daytime highs, overnight lows, Fahrenheit and Celsius temperatures, sunrise, sunset, wind chill, and local wind details for the Grant County area.
Updated: Mon Oct 26th 2026 9:00 PM PDT
Grant County, OR Weather – 10-26 – Overcast
49° / 30°
Overcast
In Grant County, skies will be overcast with highs near 49°F and lows around 30°F. Rainfall predicted to have a 61% chance with an estimated 0.06in. Snow is likely with a 16% chance. Winds will be light at 9mph and gusts of 5.8mph at 11 PM. The humidity will be on the higher side, averaging about 71%, the maximum being 91% at 11 PM and 86% being its lowest at 10 PM. Barometric pressure is its highest of 30.09inHg at 11 PM, a lowest point of 30.06inHg at 10 PM with an avg 30.08inHg.
Grant County, OR Weather – 10-27 – Scattered Showers
48° / 29°

Weather Tomorrow

Scattered Showers
Passing showers are in the forecast for Grant County, with a high of 48°F and a low of 29°F. Rainfall predicted to have a 74% chance with an estimated 0.08in. Snow is likely with a 22% chance. Winds will be light at 6mph and gusts of 12.5mph at 7 PM. High humidity with average of 84% is anticipated, the maximum being 98% at 9 AM and 60% being its lowest at 4 PM. Barometric pressure is its highest of 30.1inHg at 2 AM, a lowest point of 29.93inHg at 3 PM with an avg 30.03inHg.
Grant County, OR Weather – 10-28 – Sunny
51° / 25°
Sunny
In Grant County, a sunny day is likely with a high near 51°F and a low around 25°F. There might be light rainfall having a 12% chance with an estimated 0in. Snow is likely with a 18% chance. Winds will be light at 10mph and gusts of 16mph at 2 PM. The humidity will be on the higher side, averaging about 73%, the maximum being 95% at 8 AM and 38% being its lowest at 4 PM. Barometric pressure is its highest of 30.13inHg at 8 AM, a lowest point of 29.94inHg at 4 PM with an avg 30.05inHg.
Grant County, OR Weather – 10-29 – Overcast
54° / 26°
Overcast
In Grant County, it will be overcast with highs near 54°F and lows around 26°F. There might be light rainfall having a 14% chance. Snow is likely with a 12% chance. Winds will be light at 9mph and gusts of 13.6mph at 2 PM. The humidity will be on the higher side, averaging about 63%, the maximum being 83% at 5 AM and 30% being its lowest at 3 PM. Barometric pressure is its highest of 30.07inHg at 12 AM, a lowest point of 29.81inHg at 5 PM with an avg 29.96inHg.
Grant County, OR Weather – 10-30 – Sunny
50° / 26°
Sunny
Sunshine is in the forecast for Grant County, with a high of 50°F and a low of 26°F. There might be light rainfall having a 17% chance with an estimated 0in. Snow is likely with a 6% chance. Winds will be light at 10mph and gusts of 13.2mph at 2 PM. Humidity levels should be comfortable, sitting around 60% on average, the maximum being 92% at 8 AM and 23% being its lowest at 3 PM. Barometric pressure is its highest of 30.01inHg at 10 PM, a lowest point of 29.88inHg at 5 PM with an avg 29.93inHg.
Grant County, OR Weather – 10-31 – Light Freezing Rain
46° / 23°
Light Freezing Rain
Grant County may see rain showers, with daytime highs of 46°F and overnight lows near 23°F. Rainfall predicted to have a 61% chance with an estimated 0.08in. Snow is likely with a 23% chance with an estimated 0in. Winds will be light at 6mph and gusts of 10.7mph at 2 AM. The humidity will be on the higher side, averaging about 63%, the maximum being 95% at 11 PM and 40% being its lowest at 10 AM. Barometric pressure is its highest of 30.09inHg at 11 PM, a lowest point of 29.89inHg at 2 PM with an avg 30inHg.

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