easeweather.com
Grant County (Williamstown)
Akron (OH)Albuquerque (NM)Alexandria (VA)Anaheim (CA)Anchorage (AK)Arlington (VA)Asheville (NC)Atlanta (GA)Atlantic City (NJ)Austin (TX)Baltimore (MD)Baton Rouge (LA)Birmingham (AL)Boston (MA)Bowling Green (KY)Brooklyn (NY)Buffalo (NY)Cape Coral (FL)Charlotte (NC)Chattanooga (TN)Chicago (IL)Cincinnati (OH)Cleveland (OH)Colorado Springs (CO)Columbus (OH)Corpus Christi (TX)Dallas (TX)Dayton (OH)Daytona Beach (FL)Denver (CO)Des Moines (IA)Detroit (MI)El Paso (TX)Fairbanks (AK)Fort Lauderdale (FL)Fort Wayne (IN)Fort Worth (TX)Gatlinburg (TN)Grand Rapids (MI)Harrisburg (PA)Honolulu (HI)Houston (TX)Huntsville (AL)Indianapolis (IN)Jackson (MS)Jacksonville (FL)Juneau (AK)Kansas City (MO)Ketchikan (AK)Key West (FL)Knoxville (TN)Las Vegas (NV)Lexington (KY)Lincoln (NE)Little Rock (AR)Los Angeles (CA)Louisville (KY)Madison (WI)Manhattan (NY)Memphis (TN)Miami (FL)Milwaukee (WI)Minneapolis (MN)Mobile (AL)Montgomery (AL)Nashville (TN)New Orleans (LA)New York City (NY)Newark (NJ)Oklahoma City (OK)Omaha (NE)Orlando (FL)Philadelphia (PA)Phoenix (AZ)Pittsburgh (PA)Portland (OR)Richmond (VA)Sacramento (CA)Salt Lake City (UT)San Antonio (TX)San Diego (CA)San Francisco (CA)San Jose (CA)Savannah (GA)Seattle (WA)Skagway (AK)Springfield (MO)St. Louis (MO)St. Petersburg (FL)Tallahassee (FL)Tampa (FL)Toledo (OH)Traverse City (MI)Tulsa (OK)Tyler (TX)Vancouver (WA)Virginia Beach (VA)WashingtonWichita (KS)Williamstown (KY)Winston-Salem (NC) More Locations
United States weather

Weather in Grant County, Kentucky for May 2026

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

    Temperatures

  • Until now, May 2026 in Grant County is slightly cooler than the historical average by -0.9 °F.

  • The forecast for the coming days of May 2026 predicts a temperature of 25.2 °F , which is warmer than usual.

  • In general, the average temperature in Grant County at the beginning of May is 17.4 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 21 °F by the end of May.

    • Rain 🌧️

  • Grant County in May brings notable rainfall, with an average of 18 rainy days and a total precipitation of 256.7 mm.

    • More

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

Average dry days
13
Dry days
Average rainy days
18
Rainy days
Average snowy days
0
Snow days
Average temperatures
20°/12°
Temperatures
Average wind speed
17 km/h
Avg max wind
Average humidity
78 %
Avg humidity

Grant County Weather May

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

Temperatures trend during May in Grant County

See the weather trend as well as the moving average line

May weather in Grant County day by day

Click on a date for more information
April June
Date Weather Temperatures Rain UV More
May 1 Moderate rain at times
Moderate rain at times
 19° /11° 1.4 mm 5
May 2 Moderate or heavy rain shower
Moderate or heavy rain shower
 17° /8° 2.4 mm 7
May 3 Moderate or heavy rain shower
Moderate or heavy rain shower
 16° /7° 13 mm 6
May 4 Moderate or heavy rain shower
Moderate or heavy rain shower
 19° /9° 6.5 mm 4
May 5 Patchy rain possible
Patchy rain possible
 16° /10° 5.4 mm 4
May 6 Moderate rain at times
Moderate rain at times
 16° /7° 3.4 mm 4
May 7 Overcast
Overcast
 19° /7° 0 mm 9
May 8 Moderate or heavy rain shower
Moderate or heavy rain shower
 19° /8° 3 mm 8
May 9 Partly cloudy
Partly cloudy
 20° /8° 1.2 mm 9
May 10 Overcast
Overcast
 20° /9° 0 mm 8
May 11 Sunny
Sunny
 22° /9° 0 mm 10
May 12 Heavy rain at times
Heavy rain at times
 21° /9° 2.9 mm 6
May 13 Moderate or heavy rain shower
Moderate or heavy rain shower
 21° /13° 2.9 mm 5
May 14 Sunny
Sunny
 21° /6° 0 mm 7.6
May 15 Patchy rain possible
Patchy rain possible
 22° /7° 0.5 mm 0.5
May 16 Moderate rain
Moderate rain
 25° /15° 9.3 mm 4
May 17 Moderate rain
Moderate rain
 28° /18° 15.5 mm 5
May 18 Sunny
Sunny
 29° /18° 0 mm 6
May 19 Patchy rain possible
Patchy rain possible
 29° /18° 1.8 mm 5
May 20 Patchy rain possible
Patchy rain possible
 21° /13° 0.8 mm 4
May 21 Sunny
Sunny
 25° /10° 0 mm 5
May 22 Sunny
Sunny
 25° /12° 0 mm 5
May 23 Patchy rain possible
Patchy rain possible
 31° /15° 0.2 mm 5
May 24 Sunny
Sunny
 30° /18° 0 mm 6
May 25 Moderate rain
Moderate rain
 29° /18° 11.6 mm 5
May 26 Patchy rain possible
Patchy rain possible
 22° /13° 1.8 mm 4
May 27 Partly cloudy
Partly cloudy
 16° /9° 0.1 mm 4
May 28 Mist
Mist
 17° /11° 0 mm 2
May 29 Overcast
Overcast
 21° /15° 0 mm 6
May 30 Light rain shower
Light rain shower
 18° /13° 43.5 mm 2
May 31 Moderate rain at times
Moderate rain at times
 24° /14° 19.2 mm 8
Next
Important Notice
Our weather forecast for Grant County in May 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.
Change Month
‹
›

Grant County in May - FAQ

What are the expected maximum and minimum temperatures in Grant County during May?

Enjoy moderate daytime temperatures of up to 20° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Grant County during May?

Significant rainfall exceeding 256.7 mm is expected in Grant County during May, occurring over more than 18 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Grant County during May?

The average wind speed in Grant County during May is 17 km/h, suggesting breezy to windy conditions, depending on your activities.

May rainfall patterns in Grant County

Explore the daily rainfall trends and prepare for Grant Countys May weather 💧
Typically, Grant County has 18 rainy days in May with a total of 256.7 mm of rainfall.

UV exposure in Grant County during May

Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
Top locations in Grant County
Select a location for an accurate weather forecast
Moses LakeWilliamstown
More Locations

Quick links

More Grant County weather pages
You are here
Location coordinates Where is Grant County?

Get accurate weather forecasts for Grant County, located at latitude 38.638 and longitude -84.561. Stay updated with localized weather information tailored for Grant County.

Found a mistake?
We appreciate your attention to details. Tell us here.