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Grant County (Moses Lake)
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United States weather

Weather in Grant County, Washington for October 2026

Your guide to Grant County weather in October - trends and predictions

    Temperatures

  • So far, October 2026 in Grant County shows a warmer trend than usual by 2.6 °F.

  • Expect cooler weather in the next days in Grant County with the forecast suggesting a temperature of 17.8 °F, lower than the historical average.

  • In general, the average temperature in Grant County at the beginning of October is 22.1 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 11.1 °F by the end of October.

    • Rain 🌧️

  • Grant County experiences moderate rainfall in October, with an average of 8 rainy days and a total precipitation of 43.7 mm.

    • More

  • Is October a good time to visit Grant County? check out the best time to travel to Grant County page.

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

Average dry days
23
Dry days
Average rainy days
8
Rainy days
Average snowy days
0
Snow days
Average temperatures
16°/3°
Temperatures
Average wind speed
17 km/h
Avg max wind
Average humidity
63 %
Avg humidity

Grant County Weather October

Move between months or click on a day
September
November
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Overcast
22°
2
Cloudy
21°
3
Overcast
23°
4
Patchy rain possible
21°
5
Overcast
21°
6
Partly cloudy
23°
7
Sunny
24°
8
Sunny
24°
9
Overcast
21°
10
Cloudy
13°
11
Sunny
16°
12
Sunny
16°
13
Sunny
17°
14
Sunny
18°
15
Sunny
19°
16
Overcast
19°
17
Overcast
19°
18
Sunny
20°
19
Sunny
21°
20
Sunny
21°
21
Sunny
20°
22
Overcast
12°
23
Overcast
13°
24
Overcast
12°
25
Overcast
11°
26
Partly cloudy
12°
27
Heavy rain at times
13°
28
Overcast
11°
29
Overcast
12°
30
Moderate rain at times
8°
31
Moderate or heavy rain with thunder
11°

Temperatures trend during October in Grant County

See the weather trend as well as the moving average line

October weather in Grant County day by day

Click on a date for more information
September November
Date Weather Temperatures Rain UV More
Oct. 1 Overcast
Overcast
 22° /7° 0 mm 3
Oct. 2 Cloudy
Cloudy
 21° /6° 0 mm 4
Oct. 3 Overcast
Overcast
 23° /4° 0 mm 5
Oct. 4 Patchy rain possible
Patchy rain possible
 21° /7° 0.1 mm 4
Oct. 5 Overcast
Overcast
 21° /6° 0 mm 4
Oct. 6 Partly cloudy
Partly cloudy
 23° /5° 0 mm 5
Oct. 7 Sunny
Sunny
 24° /6° 0 mm 5
Oct. 8 Sunny
Sunny
 24° /7° 0 mm 5
Oct. 9 Overcast
Overcast
 21° /7° 0 mm 4
Oct. 10 Cloudy
Cloudy
 13° /5° 1 mm 2.5
Oct. 11 Sunny
Sunny
 16° /5° 0 mm 2.9
Oct. 12 Sunny
Sunny
 16° /5° 0 mm 3.1
Oct. 13 Sunny
Sunny
 17° /5° 0 mm 4
Oct. 14 Sunny
Sunny
 18° /7° 0 mm 5
Oct. 15 Sunny
Sunny
 19° /8° 0 mm 5
Oct. 16 Overcast
Overcast
 19° /9° 0 mm 5
Oct. 17 Overcast
Overcast
 19° /10° 0 mm 4
Oct. 18 Sunny
Sunny
 20° /10° 0 mm 6
Oct. 19 Sunny
Sunny
 21° /10° 0 mm 6
Oct. 20 Sunny
Sunny
 21° /10° 0 mm 6
Oct. 21 Sunny
Sunny
 20° /8° 0 mm 6
Oct. 22 Overcast
Overcast
 12° /9° 1.5 mm 3
Oct. 23 Overcast
Overcast
 13° /0° 0 mm 3
Oct. 24 Overcast
Overcast
 12° /1° 0 mm 3
Oct. 25 Overcast
Overcast
 11° /1° 9.1 mm 3
Oct. 26 Partly cloudy
Partly cloudy
 12° /3° 0 mm 4
Oct. 27 Heavy rain at times
Heavy rain at times
 13° /3° 1.1 mm 3
Oct. 28 Overcast
Overcast
 11° /1° 0 mm 3
Oct. 29 Overcast
Overcast
 12° /0° 0 mm 3
Oct. 30 Moderate rain at times
Moderate rain at times
 8° /-2° 1.6 mm 2
Oct. 31 Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
 11° /4° 14.4 mm 3
Next
Important Notice
Our weather forecast for Grant County in October 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 Grant County forecast closer to your planned date for the most up-to-date weather information.
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Grant County in October - FAQ

What are the expected maximum and minimum temperatures in Grant County during October?
During October, 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 Grant County during October?
In October, Grant County can expect light to moderate rainfall, totaling 43.7 mm across approximately 8 days. Occasional showers are possible, and planning ahead for them could be helpful.

What are the typical wind conditions in Grant County during October?
The average wind speed in Grant County during October is 17 km/h, suggesting breezy to windy conditions, depending on your activities.

October rainfall patterns in Grant County

Explore the daily rainfall trends and prepare for Grant Countys October weather 💧
Typically, Grant County has 8 rainy days in October with a total of 43.7 mm of rainfall.

UV exposure in Grant County during October

Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️
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Moses LakeWilliamstown
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Location coordinates Where is Grant County?

Get accurate weather forecasts for Grant County, located at latitude 47.13 and longitude -119.278. Stay updated with localized weather information tailored for Grant County.

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