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Weather in Eureka, California for July 2026

Your guide to Eureka weather in July - trends and predictions

    Official Weather Alert ⚠️

  • Small Craft Advisory - See hour by hour.

    • Temperatures

  • Until now, July 2026 in Eureka is slightly cooler than the historical average by -0.7 °C.

  • The forecast for the next days in Eureka predicts temperatures to be around 18 °C, close to the historical average.

  • In general, the average temperature in Eureka at the beginning of July is 15.7 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 16.9 °C by the end of July.

    • Rain 🌧️

  • Precipitation in Eureka during July is a rare event, with an average of fewer than 2 rainy days.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
31
Dry days
Average rainy days
0
Rainy days
Average snowy days
0
Snow days
Average temperatures
15°/11°
Temperatures
Average wind speed
14 km/h
Avg max wind
Average humidity
88 %
Avg humidity

Eureka Weather July

Move between months or click on a day
June
August
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Patchy rain possible
16°
2
Patchy rain possible
15°
3
Patchy rain possible
15°
4
Sunny
15°
5
Sunny
17°
6
Patchy rain possible
16°
7
Patchy rain possible
16°
8
Sunny
16°
9
Patchy rain possible
16°
10
Patchy rain possible
16°
11
Patchy rain possible
16°
12
Patchy rain possible
17°
13
Patchy rain possible
16°
14
Cloudy
16°
15
Sunny
16°
16
Patchy rain possible
16°
17
Sunny
16°
18
Patchy rain possible
16°
19
Patchy rain possible
16°
20
Weather Alert Fog
19°
21
Sunny
20°
22
Patchy rain possible
20°
23
Patchy rain possible
19°
24
Patchy rain possible
18°
25
Patchy rain possible
17°
26
Sunny
17°
27
Mist
17°
28
Sunny
17°
29
Patchy rain possible
17°
30
Sunny
16°
31
Sunny
17°

Temperatures trend during July in Eureka

See the weather trend as well as the moving average line

July weather in Eureka day by day

Click on a date for more information
June August
Date Weather Temperatures Rain UV More
Jul. 1 Patchy rain possible
Patchy rain possible
 16° /10° 0.1 mm 6
Jul. 2 Patchy rain possible
Patchy rain possible
 15° /10° 0 mm 6
Jul. 3 Patchy rain possible
Patchy rain possible
 15° /10° 0 mm 4
Jul. 4 Sunny
Sunny
 15° /11° 0.1 mm 4
Jul. 5 Sunny
Sunny
 17° /11° 0 mm 7
Jul. 6 Patchy rain possible
Patchy rain possible
 16° /11° 0 mm 3
Jul. 7 Patchy rain possible
Patchy rain possible
 16° /11° 0.5 mm 3
Jul. 8 Sunny
Sunny
 16° /11° 0 mm 4
Jul. 9 Patchy rain possible
Patchy rain possible
 16° /10° 0 mm 5
Jul. 10 Patchy rain possible
Patchy rain possible
 16° /11° 0.1 mm 4
Jul. 11 Patchy rain possible
Patchy rain possible
 16° /11° 0 mm 7
Jul. 12 Patchy rain possible
Patchy rain possible
 17° /11° 0 mm 6
Jul. 13 Patchy rain possible
Patchy rain possible
 16° /10° 0 mm 5
Jul. 14 Cloudy
Cloudy
 16° /11° 0 mm 3
Jul. 15 Sunny
Sunny
 16° /11° 0 mm 3
Jul. 16 Patchy rain possible
Patchy rain possible
 16° /10° 0 mm 6
Jul. 17 Sunny
Sunny
 16° /11° 0 mm 4
Jul. 18 Patchy rain possible
Patchy rain possible
 16° /11° 0 mm 3
Jul. 19 Patchy rain possible
Patchy rain possible
 16° /11° 0 mm 3
Jul. 20 Fog
Fog
 19° /13° 0 mm 8.5
Jul. 21 Sunny
Sunny
 20° /12° 0.1 mm 9.2
Jul. 22 Patchy rain possible
Patchy rain possible
 20° /11° 0.1 mm 9.1
Jul. 23 Patchy rain possible
Patchy rain possible
 19° /11° 0.1 mm 9.1
Jul. 24 Patchy rain possible
Patchy rain possible
 18° /11° 0.2 mm 5
Jul. 25 Patchy rain possible
Patchy rain possible
 17° /11° 0.1 mm 5
Jul. 26 Sunny
Sunny
 17° /11° 0 mm 5
Jul. 27 Mist
Mist
 17° /11° 0 mm 5
Jul. 28 Sunny
Sunny
 17° /10° 0 mm 5
Jul. 29 Patchy rain possible
Patchy rain possible
 17° /11° 0.1 mm 5
Jul. 30 Sunny
Sunny
 16° /11° 0 mm 5
Jul. 31 Sunny
Sunny
 17° /11° 0 mm 5
Next
Important Notice
Our weather forecast for Eureka in July 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 Eureka forecast closer to your planned date for the most up-to-date weather information.
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Eureka in July - FAQ

What are the expected maximum and minimum temperatures in Eureka during July?
During July, expect a variety of temperatures with highs around 15° and lows near 11°, suitable for diverse activities and preferences.

How much rainfall should be expected in Eureka during July?
Rainfall in Eureka during July is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 0 days seeing any precipitation. Planning without the concern for rain is generally straightforward during this very dry period.

What are the typical wind conditions in Eureka during July?
The average wind speed in Eureka during July is 14 km/h, suggesting breezy to windy conditions, depending on your activities.

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Get accurate weather forecasts for Eureka, located at latitude 40.802 and longitude -124.164. Stay updated with localized weather information tailored for Eureka.

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