Lewiston (ID)
April
Weather in Lewiston, Idaho for April 2026
Your guide to Lewiston weather in April - trends and predictions
In general, the average temperature in Lewiston at the beginning of April is 13.6 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 18.7 °F by the end of April.
Lewiston experiences moderate rainfall in April, with an average of 8 rainy days and a total precipitation of 31.2 mm.
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Temperatures
Rain 🌧️
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22
Dry days
8
Rainy days
0
Snow days
16°/3°
Temperatures
13 km/h
Avg max wind
64 %
Avg humidity
Lewiston Weather April
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Temperatures trend during April in Lewiston
See the weather trend as well as the moving average line
April weather in Lewiston day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Apr. 1 |  Patchy rain possible | 11° /1° | 0.3 mm | 3 | |
| Apr. 2 |  Partly cloudy | 10° /2° | 0 mm | 4 | |
| Apr. 3 | Patchy rain possible | 10° /1° | 0.5 mm | 3 | |
| Apr. 4 |  Sunny | 12° /0° | 0 mm | 4 | |
| Apr. 5 |  Cloudy | 17° /0° | 0 mm | 4 | |
| Apr. 6 | Partly cloudy | 21° /1° | 0 mm | 6 | |
| Apr. 7 |  Moderate or heavy rain shower | 14° /6° | 8.2 mm | 3 | |
| Apr. 8 | Patchy rain possible | 16° /2° | 1.9 mm | 4 | |
| Apr. 9 | Patchy rain possible | 15° /3° | 0.2 mm | 4 | |
| Apr. 10 |  Overcast | 22° /2° | 0.1 mm | 5 | |
| Apr. 11 | Overcast | 14° /7° | 4.8 mm | 3 | |
| Apr. 12 | Patchy rain possible | 12° /4° | 0.2 mm | 3 | |
| Apr. 13 | Sunny | 13° /0° | 0 mm | 4 | |
| Apr. 14 | Sunny | 19° /1° | 0 mm | 5 | |
| Apr. 15 | Partly cloudy | 21° /2° | 0 mm | 6 | |
| Apr. 16 | Cloudy | 18° /4° | 0.1 mm | 4 | |
| Apr. 17 | Partly cloudy | 13° /0° | 0.1 mm | 4 | |
| Apr. 18 | Sunny | 14° /0° | 0 mm | 4 | |
| Apr. 19 | Patchy rain possible | 14° /2° | 0.2 mm | 3 | |
| Apr. 20 | Moderate rain at times | 14° /1° | 1.7 mm | 3 | |
| Apr. 21 | Patchy rain possible | 12° /2° | 2.5 mm | 3 | |
| Apr. 22 | Sunny | 13° /1° | 0 mm | 4 | |
| Apr. 23 | Sunny | 16° /2° | 0 mm | 5 | |
| Apr. 24 | Sunny | 21° /4° | 0 mm | 6 | |
| Apr. 25 | Partly cloudy | 23° /5° | 0 mm | 6 | |
| Apr. 26 | Overcast | 19° /8° | 0 mm | 4 | |
| Apr. 27 | Partly cloudy | 18° /9° | 0 mm | 5 | |
| Apr. 28 | Cloudy | 18° /5° | 0 mm | 4 | |
| Apr. 29 |  Heavy rain at times | 15° /7° | 10.4 mm | 4 | |
| Apr. 30 | Partly cloudy | 17° /2° | 0 mm | 5 | |
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Important Notice
Our weather forecast for Lewiston in April is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Lewiston forecast closer to your planned date for the most up-to-date weather information.
Change Month
Lewiston in April - FAQ
What are the expected maximum and minimum temperatures in Lewiston during April?
During April, expect a variety of temperatures with highs around 16° and lows near 3°, suitable for diverse activities and preferences.
How much rainfall should be expected in Lewiston during April?
In April, Lewiston can expect light to moderate rainfall, totaling 31.2 mm across approximately 8 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Lewiston during April?
The average wind speed in Lewiston during April is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
April rainfall patterns in Lewiston
Explore the daily rainfall trends and prepare for Lewistons April weather 💧
UV exposure in Lewiston during April
Stay informed about UV levels for safe outdoor activities throughout the month of April ☀️
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