Best year time to visit Forest Grove

General weather information about Forest Grove

Average annual temperature is 15.7 °C

Absolute maximum temperature: 37.0 °C

Absolute minimum temperature: -6.6 °C

Number of sunny days: 166 days

Number of rainy days: 198 days

Number of snow days: 1 day

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* Weather data for Forest Grove United States is based on climate observations for 2026 year

Forest Grove air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)19.824.524.428.030.234.736.037.031.029.826.318.0
Average daytime temperature (°C)11.415.015.620.625.530.031.330.127.421.916.112.1
Average temperature (°C)6.98.89.714.419.323.225.324.621.616.410.26.9
Average night temperature (°C)3.44.75.09.214.417.720.920.316.812.15.93.2
Absolute minimum temperature (°C)-4.1-6.2-6.62.56.812.116.414.512.4-1.0-3.7-5.9

Forest Grove monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.014.014.013.012.011.010.09.0
Daylight mean duration (h)10.010.912.013.114.114.614.413.512.411.310.39.7
Daylight minimum duration (h)9.010.011.012.013.014.014.012.011.010.09.09.0
Sunshine mean duration (h)4.96.27.79.010.812.011.49.910.37.77.86.6
Precipitation (mm)166177157102152109133224100726061
Sunny days11121714151271211182215
Rainy days20161316161824191913816
Snow days001000000000

Forest Grove - weather forecast by months

Forest Grove weather in januaryForest Grove weather in februaryForest Grove weather in marchForest Grove weather in aprilForest Grove weather in mayForest Grove weather in juneForest Grove weather in julyForest Grove weather in augustForest Grove weather in septemberForest Grove weather in octoberForest Grove weather in novemberForest Grove weather in december

Best time to visit Forest Grove:

The best time to visit Forest Grove during the most sunny months:

  • June — 12.0(h)
  • July — 11.4(h)

The largest precipitation sum in Forest Grove is at

  • January — 166(mm)
  • February — 177(mm)
  • August — 224(mm)

    • Weather forecast in the closest to Forest Grove admin centers

    Weather forecast in the closest towns to Forest Grove

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    Frequently asked questions

    When is the best time to visit Forest Grove?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Forest Grove.
    What is the weather like in Forest Grove?
    See average temperature, rainfall and daylight hours for Forest Grove by month in the table above.
    How many sunny days does Forest Grove have?
    The monthly weather statistics above show sunshine and rainfall patterns for Forest Grove throughout the year.