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Altoona, WI Weather Forecast for 5-Days

Updated: Sat May 16th 2026 3:00 AM CDT

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Altoona, WI Weather – 5-16 – Sunny
82° / 55°
Sunny
Highs will reach 82°F with lows near 55°F in Altoona, where a sunny day is. Wind will be moderate, blowing around 12mph on average and gusts of 14.1mph at 7 AM. Humidity levels should be comfortable, sitting around 53% on average, the maximum being 91% at 6 AM and 19% being its lowest at 3 PM. Barometric pressure is its highest of 29.88inHg at 11 PM, a lowest point of 29.7inHg at 4 AM with an avg 29.8inHg.
Altoona, WI Weather – 5-17 – Moderate Rain
65° / 48°

Weather Tomorrow

Moderate Rain
Rain showers are in the forecast for Altoona, with a high of 65°F and a low of 48°F. The chance of rain is 86% with an estimated 0.26in. Wind will be moderate, blowing around 18mph on average and gusts of 26.8mph at 11 PM. High humidity with average of 83% is anticipated, the maximum being 97% at 8 PM and 69% being its lowest at 10 AM. Barometric pressure is its highest of 29.93inHg at 4 AM, a lowest point of 29.62inHg at 11 PM with an avg 29.81inHg.
Altoona, WI Weather – 5-18 – Moderate Rain
74° / 60°
Moderate Rain
Altoona could see rain showers with daytime highs of 74°F and nighttime lows near 60°F. The chance of rain is 89% with an estimated 0.48in. Wind will be moderate, blowing around 19mph on average and gusts of 28.4mph at 3 AM. High humidity with average of 90% is anticipated, the maximum being 98% at 9 PM and 81% being its lowest at 1 PM. Barometric pressure is its highest of 29.67inHg at 3 PM, a lowest point of 29.59inHg at 6 AM with an avg 29.62inHg.
Altoona, WI Weather – 5-19 – Scattered Showers
53° / 47°
Scattered Showers
Altoona may see passing showers, with daytime highs of 53°F and overnight lows near 47°F. The chance of rain is 89% with an estimated 0.01in. Wind will be moderate, blowing around 17mph on average and gusts of 19.6mph at 3 PM. The humidity will be on the higher side, averaging about 80%, the maximum being 98% at 4 AM and 63% being its lowest at 4 PM. Barometric pressure is its highest of 30.07inHg at 10 PM, a lowest point of 29.61inHg at 3 AM with an avg 29.84inHg.
Altoona, WI Weather – 5-20 – Scattered Showers
54° / 37°
Scattered Showers
Altoona could see passing showers with daytime highs of 54°F and nighttime lows near 37°F. Wind will be moderate, blowing around 14mph on average and gusts of 16.6mph at 2 AM. The humidity will be on the higher side, averaging about 67%, the maximum being 79% at 4 AM and 47% being its lowest at 4 PM. Barometric pressure is its highest of 30.28inHg at 11 PM, a lowest point of 30.05inHg at 12 AM with an avg 30.18inHg.
Altoona, WI Weather – 5-21 – Partly Cloudy
61° / 36°
Partly Cloudy
Overcast conditions are in the forecast for Altoona, with a high of 61°F and a low of 36°F. Wind will be moderate, blowing around 12mph on average and gusts of 21.1mph at 10 PM. The humidity will be on the higher side, averaging about 66%, the maximum being 82% at 10 PM and 50% being its lowest at 1 PM. Barometric pressure is its highest of 30.32inHg at 7 AM, a lowest point of 30.13inHg at 7 PM with an avg 30.23inHg.

Currently

Clear 64°F
29.68 inHg.
Barometer
68%
Humidity
WSW 8.6 mph
Wind
Clear

5 Day Forecast Nearby

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